Answer:
I believe it’s A bc there are only 4 cars in the toy box
Step-by-step explanation:
Brainliest if correct?
thanks have a good day!
Answer: a........ I think im not sure sorry
Step-by-step explanation: it might be a because it is the only answer with four cars. All of the others i dont know.
What is the surface area of the cylinder shown below? Use 3.14 for π. A. 660 cm2 B. 863 cm2 C. 353.25 cm2 D. 785 cm2
Answer:
602.88cm²
Step-by-step explanation:
Find the image of the cylinder attached
Surface area of a cylinder = A=2πrh+2πr²
r is the radius = 4cm
Height h = 20cm
Substitute
A = 2πr(r+h)
A = 2π(4)(4+20)
A = 8π(24)
A = 192π
A = 192(3.14)
A = 602.88cm²
Hence the surface area of the cylinder is 602.88cm²
When Ashley left her house in the morning, her cell phone battery was partially charged. Let B represent the charge remaining in Ashley's battery, as a percentage, t hours since Ashley left her house. A graph of B is shown below. Write an equation for B then state the y-intercept of the graph and determine its interpretation in the context of the problem.
B = _____
The y-intercept of the function is ___ which represents
(A) the number of hours until Ashley's phone dies.
(B) the charge of the battery when Ashley left her house
(C) the percentage charge that Ashley's phone loses each hour
(D) the charge of the battery when Ashley woke up.
The y-intercept of the function is 50% which represents; (B) the charge of the battery when Ashley left her house
What is the y-intercept of the Linear Graph?The general format for the equation of a line in slope intercept form is;
y = mx + b
where;
m is slope
b is y-intercept
Now, the y-intercept is defined as the point where the graph line crosses the y-axis or the point at which x is zero.
The slope is defined as the ratio of change of the vertical axis with the horizontal axis.
From the given linear graph, we can see that;
The line intersects the y-axis at y = 50. Thus;
y-intercept = 50
Now, the y-axis represent the percentage charge remaining on the phone battery while the x-axis shows that number of hours since Ashley left her house. Thus;
When the number of hours is zero, the percentage charge remaining on the phone battery is 50%
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HELP ASAP
A picture is 7 inches wide and 9 inches long. A photographer enlarges it so it is 31.5 inches wide and 40.5 inches long. What scale factor was used to enlarge the picture?
9/77
7/9
31.5/7
7/31.5
The scale factor was used to enlarge the picture is 31.5/7 or 4.5.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life
here, we have,
A picture is 7 inches wide and 9 inches long.
A photographer enlarges it so it is 31.5 inches wide and 40.5 inches long.
By simply taking the width after it was enlarged and dividing it by the width before it was enlarged we can find the scale factor that was used.
In this case it would be 31.5 (width after)/ 7 (width before)
which gives us a scale factor of 31.5/7.
Simplifying would yield a scale factor of 4.5 times.
hence, The scale factor was used to enlarge the picture is 31.5/7 or 4.5.
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Given: ∆MNP, PM = 8 m∠P = 90°, m∠N = 58° Find: Perimeter of ∆MNP
(Not 22.4 or 22.43)
Please answer ASAP, brainly awarded.
Answer:
Step-by-step explanation:
Triangle MNP is a right triangle with the following values:
m∠P = 90°m∠N = 58°PM = 8Interior angles of a triangle sum to 180°. Therefore:
m∠M + m∠N + m∠P = 180°
m∠M + 58° + 90° = 180°
m∠M + 148° = 180°
m∠M = 32°
To find the measures of sides MN and NP, use the Law of Sines:
\(\boxed{\begin{minipage}{7.6 cm}\underline{Law of Sines} \\\\$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$\\\\\\where:\\ \phantom{ww}$\bullet$ $A, B$ and $C$ are the angles. \\ \phantom{ww}$\bullet$ $a, b$ and $c$ are the sides opposite the angles.\\\end{minipage}}\)
Substitute the values into the formula:
\(\dfrac{MN}{\sin P}=\dfrac{NP}{\sin M}=\dfrac{PM}{\sin N}\)
\(\dfrac{MN}{\sin 90^{\circ}}=\dfrac{NP}{\sin 32^{\circ}}=\dfrac{8}{\sin 58^{\circ}}\)
Therefore:
\(MN=\dfrac{8\sin 90^{\circ}}{\sin 58^{\circ}}=9.43342722...\)
\(NP=\dfrac{8\sin 32^{\circ}}{\sin 58^{\circ}}=4.99895481...\)
To find the perimeter of triangle MNP, sum the lengths of the sides.
\(\begin{aligned}\textsf{Perimeter}&=MN+NP+PM\\&=9.43342722...+4.99895481...+8\\&=22.4323820...\\&=22.43\; \sf units\; (2\;d.p.)\end{aligned}\)
28 girls and 38 boys volunteer to plant trees at a school. their teacher wants to put them in groups that have girls AND boys. how many groups can the teacher make
pleaseeeeeeeeeeeeeeeeeeeeeeee solve i have a headache and cant focus so please help me out also please do step by step
Answer:
so 14 can go into 28, 2 times and 19 can go into 38 2 times so the techaer can make 2 group with 14 girls and 19 boys in each group.
Step-by-step explanation:
A small country of 744,785 people has 44600 immigrants and 12.567 emigrants. They also experience 15.890 deaths and 35.000 births, what is the population growth rate of this country? 0.7 O b. 5.6 O 65 O d. 5.5
Among the given answer choices, the closest option is "5.6", but the correct answer based on the calculation of population growth rate is approximately 5.054%.
To calculate the population growth rate, we need to consider the net change in population relative to the initial population.
The net change in population is calculated by subtracting the number of emigrants and deaths from the total number of immigrants and births:
Net Change = Immigrants + Births - Emigrants - Deaths
Net Change = 44600 + 35000 - 12567 - 15890
Net Change = 66143 - 28457
Net Change = 37686
Next, we can calculate the population growth rate using the formula:
Rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.
Population Growth Rate = (Net Change / Initial Population) * 100
Population Growth Rate = (37686 / 744785) * 100
Population Growth Rate ≈ 5.054%
The population growth rate of this country is approximately 5.054%.
Among the given answer choices, the closest option is "5.6", but the correct answer based on the calculation is approximately 5.054%.
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PLEASE HELP f(x)=x^2 and g(x)=(x-3)^2+2 Describe how the graph of g(x) relates to the graph of its parent function, f(x). (HINT: Think about how f(x) was shifted to get g(x))
Answer:
The graph f(x) was shifted 3 units to the right and shifted 2 units up to get the graph of g(x).
Step-by-step explanation:
From the original graph to the transformed one, we can see that the transformations (x - 3) and + 2 were added to the equation.
The (x - 3) means that the x-value of the vertex will increase by 3, meaning that the graph will shift 3 units to the right.
The +2 will increase the y-value of the vertex by 2, meaning that the graph will move up 2 units.
So, the graph of g(x) relates to f(x) as it is a transformation 3 units to the right and 2 units upwards.
not every linearly independent set in set of real numbers r superscript ℝn is an orthogonal set. T/F?
The given statement is true.
Consider linearly independent vectors of \(R_{n}\)
Where n = 2
\(V = \[\begin{array}{ccc}4&\\2\end{array}\right]\)
\(U = \[\begin{array}{ccc}5&\\6\end{array}\right]\)
Now product of these vectors
UV = 4x5 + 2x6
= 32
Hence these vectors are not orthogonal.
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Is (−3, 7) a solution of the equation y = 4x + 15?
Answer:
no it's not a solution because when you substitute the values of x= -3 and y=7 you won't get the equation
What is the definition of scale factor
Answer:
The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure. Example: Here, XYUV=123=4 . So, the scale factor is 4 .
Step-by-step explanation:
:D
What is the range of the function shown
on the graph above?
Answer:
-9 ≤ y ≤ 8
Step-by-step explanation:
look at the endpoints of the segment; (7, 8) and (-2, -9)
the y-values represent the range and they go from -9 to 8, inclusive
A local group wants to place a fountain in town at a point that is equidistant from three main roads.
Where should the fountain be placed?
The point where the fountain should be placed is the point of intersection of the three perpendicular bisectors is the center of the circumcircle of the triangle.
If the fountain is to be equidistant from three main roads, it must be located at the intersection of the three perpendicular bisectors of the line segments that connect the three main roads.
What is circumcircle?
A circumcircle is a circle that passes through all three vertices of a triangle. The center of the circumcircle is equidistant from the three vertices, and the radius of the circumcircle is called the circumradius.
The circumcircle plays an important role in geometry, particularly in the study of triangles. In fact, the circumcircle of a triangle is the unique circle that passes through all three vertices, and its center and radius can be used to find other geometric properties of the triangle. For example, the circumcenter (the center of the circumcircle) is the point where the perpendicular bisectors of the sides of the triangle intersect, and the circumradius can be used to calculate the area of the triangle, among other things.
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Solve:
4(y+3)-8=2(y+2)
Answer:
y = 0
Step-by-step explanation:
4(y + 3) - 8 = 2(y + 2) ← distribute parenthesis
4y + 12 - 8 = 2y + 4 , that is
4y + 4 = 2y + 4 ( subtract 2y from both sides )
2y + 4 = 4 ( subtract 4 from both sides )
2y = 0 , then
y = 0
Central Market sells 5 jars of jam for $3.00. Valley Market sells jars of jam at 59 cents per jar. Yasmin bought 10 jars from Central Market, and Nadia bought 10 jars from Valley Market.
Answer:
Yasmin will spend $6
Nadia will spend $5.9
Step-by-step explanation:
Step one:
the cost of 5 jars at Central market is $3
the cost of 1 jar = 3/5= $0.6
60 cents per jar
we are told that Valley Market sells jars of jam at 59 cents per jar.
$0.59
Step two:
If Yasmin buys 10 jars from Central Market,
Yasmin will spend = 10*0.6= $6
If Nadia buys 10 jars from Valley Market.
Nadia will spend = 10*0.59= $5.9
The market difference is 6-5.9= $0.1
consider the relationship below given pi/2<0
sin(x) is a mathematical function that calculates the sine of angle x, where x is in radians.
In mathematics, angles are measured in radians or degrees. The symbol π represents the mathematical constant pi, which is approximately equal to 3.14159.
When we say π/2, it means half of the circumference of a circle, which corresponds to 90 degrees.
The inequality "π/2 < 0" suggests that π/2 is less than zero, implying that the angle of 90 degrees is negative. However, this is incorrect.
In the standard coordinate system, angles are measured counterclockwise from the positive x-axis.
Thus, π/2 or 90 degrees lies in the positive direction. The correct relationship should be "π/2 > 0" to indicate that the angle is greater than zero.
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The school band needs to raise more than $16,000 to buy new uniforms. They have already raised $4,000. The need to raise the remaining amount of money over the next 6 months. Which inequality represents the amount of money, m, the school band must raise next month to purchase the uniforms?
6m + 4,000 > 16,000
6m + 4,000 <16,000
6m - 4,000 > 16,000
6m - 4,000 < 16,000
Answer:
B
Step-by-step explanation:
Solve the following system of equations.
Answer:
n= -6, a= 5
Step-by-step explanation:
Label the two equations:
a= -2n -7 -----(1)
-3a +n= -21 -----(2)
Substitute (1) into (2):
-3(-2n -7) +n= -21
Expand:
-3(-2n) -3(-7) +n= -21
6n +21 +n= -21
Simplify, minus 21 on both sides:
7n= -21 -21
7n= -42
Divide both sides by 7:
n= -42 ÷7
n= -6
Substitute n= -6 into (1):
a= -2(-6) -7
a= 12 -7
a= 5
Julia has $5.00 to spend on lemons. Lemons cost $0.59 each, and there is no tax on the
purchase. Which of the following inequalities can be used to represent x, the number of
lemons Julia can buy?
Answer: X is less than or equal to 5.
Step-by-step explanation: The amount of money she spends is either less than 5, or at 5.
Let fn(x)=x" (1-x), x = [0, 1] and n € N. Show that fn ⇒ 0 on [0, 1] but that {f} is not uniformly convergent.
The function sequence fn(x) = xn(1 - x) defined on the interval [0, 1] converges pointwise to 0, but it does not converge uniformly.
For any x in [0, 1], fn(x) = xn(1 - x) tends to 0 as n approaches infinity.
To show pointwise convergence, we need to evaluate the limit of fn(x) as n approaches infinity for each fixed x in the interval [0, 1]. Taking the limit of fn(x) = xn(1 - x) as n approaches infinity, we find that the limit is indeed 0 for any x in [0, 1].
However, to demonstrate that the convergence is not uniform, we need to show that for any given ε > 0, there exists an x in [0, 1] and an N ∈ N such that |fn(x) - 0| > ε for some n ≥ N. By considering the behavior of fn(x) near x = 1, we can find a suitable choice of x and ε to invalidate uniform convergence.
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A credit card company applies a 6% fee on all transactions under $10. You purchased coffee for $4.80. What fee amount will be applied to your bill? * This is a required question
Answer:
$5.08
Step-by-step explanation:
Step one:
given data
We are told that a credit card company applies a 6% fee on all transactions under $10
since the cost of coffee bellow $10 that is $4.80, the 6% fee is applicable
so
=6% of 4.80
=6/100*4.80
=0.06*4.8
=$0.288
Step two:
the total fee will be
=0.288+4.80
= $5.08
How many three-digit numbers can you make if you are not allowed to use any other digits except 1 and 2? (You may use 1 and 2 in a number more than once or not at all!)
The first digit can be 1 or 2.
For each one ...
The second digit can be 1 or 2.
For each one ...
The third digit can be 1 or 2.
That's (2•2•2)= 8 different possibilities.
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
The slope of the line shown in the graph is _____
and the y-intercept of the line is _____ .
The slope of the line shown in the graph is __2/3__
and the y-intercept of the line is __6___
How to find the slope and the y-intercept?The general linear equation is written as follows:
y = ax + b
Where a is the slope and b is the y-intercept.
On the graph we can see that the y-intercept is y = 6, then we can write the line as:
y = ax + 6
The line also passes through the point (-9, 0), replacing these values in the line we will get:
0 = a*-9 + 6
9a = 6
a = 6/9
a = 2/3
That is the slope.
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an insulating belt moves at speed 30 m/s and has a width of 50 cm. it carries charge into an experimental device at a rate corresponding to 100 μa. what is the surface charge density on the belt?
The surface charge density on the belt is 100 μC/m.
The surface charge density on an insulating belt moving at a speed of 30 m/s with a width of 50 cm and carrying charge into an experimental device at a rate of 100 μA is being asked.
To calculate the surface charge density, we need to know the charge per unit length of the belt. We can calculate this by multiplying the current by the width of the belt, which gives us 100 μA x 0.5 m = 50 μC/s. Since the belt is moving at a constant speed, the charge per unit length remains constant.
Therefore, we can calculate the surface charge density by dividing the charge per unit length by the belt's width. So, the surface charge density would be 50 μC/s ÷ 0.5 m = 100 μC/m.
Therefore, the surface charge density on the belt is 100 μC/m.
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5. Problem 5.15 (Present Value of an Annuity) Find the present values of these ordinary annuities. Discounting occurs once a year. Do not round intermediate calculations. Round your answers to the nearest cent. a. $400 per year for 14 years at 14%. $ b. $200 per year for 7 years at 7%. $ c. $400 per year for 7 years at 0%. $ d. Rework previous parts assuming they are annuities due. Present value of $400 per year for 14 years at 14%:$ Present value of $200 per year for 7 years at 7% : $ Present value of $400 per year for 7 years at 0% : $
a. Present value of $400 per year for 14 years at 14%: $2,702.83
b. Present value of $200 per year for 7 years at 7%: $1,155.54
c. Present value of $400 per year for 7 years at 0%: $2,800
d. Present value of $400 per year for 14 years at 14% (annuity due): $2,943.07
Present value of $200 per year for 7 years at 7% (annuity due): $1,233.24
Present value of $400 per year for 7 years at 0% (annuity due): $2,800
To find the present values of the ordinary annuities, we can use the formula for the present value of an annuity:
PV = PMT * [(1 - (1 + r)^(-n)) / r]
Where:
PV = Present value
PMT = Payment per period
r = Interest rate per period
n = Number of periods
a. $400 per year for 14 years at 14%:
PV = $400 * [(1 - (1 + 0.14)^(-14)) / 0.14]
≈ $2,702.83
b. $200 per year for 7 years at 7%:
PV = $200 * [(1 - (1 + 0.07)^(-7)) / 0.07]
≈ $1,155.54
c. $400 per year for 7 years at 0%:
Since the interest rate is 0%, the present value is simply the total amount of payments over the 7 years:
PV = $400 * 7
= $2,800
d. Reworking previous parts assuming they are annuities due:
For annuities due, we need to adjust the formula by multiplying it by (1 + r):
a. Present value of $400 per year for 14 years at 14%:
PV = $400 * [(1 - (1 + 0.14)^(-14)) / 0.14] * (1 + 0.14)
≈ $2,943.07
b. Present value of $200 per year for 7 years at 7%:
PV = $200 * [(1 - (1 + 0.07)^(-7)) / 0.07] * (1 + 0.07)
≈ $1,233.24
c. Present value of $400 per year for 7 years at 0%:
Since the interest rate is 0%, the present value remains the same:
PV = $400 * 7
= $2,800
In conclusion:
a. Present value of $400 per year for 14 years at 14%: $2,702.83
b. Present value of $200 per year for 7 years at 7%: $1,155.54
c. Present value of $400 per year for 7 years at 0%: $2,800
d. Present value of $400 per year for 14 years at 14% (annuity due): $2,943.07
Present value of $200 per year for 7 years at 7% (annuity due): $1,233.24
Present value of $400 per year for 7 years at 0% (annuity due): $2,800
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Dave works as a waiter. He is calculating his average tips from the past two weeks. His total tips from each night can be found in the table below, with all values being in dollars.
Day
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week 1
100.85
166.57
135.74
148.12
113.94
190.13
235.31
Week 2
102.57
124.02
142.40
108.60
110.50
163.82
183.01
Find the mean of Dave’s nightly tips. Round to the nearest cent, if necessary.
a.
$168.08
b.
$144.68
c.
$139.07
d.
$133.56
THE ANSWER IS B
Answer:
bro said b so b
Step-by-step explanation:
According to the dataset, the mean of Dave’s nightly tips is $144.68
What is the mean of a dataset?The mean of a dataset is the average value of the dataset
Below is how to calculate the mean of Dave’s nightly tips
Mean is calculated using:
Mean = sum of observations/Number of observations
The sum of observations is:
Sum = 100.85 + 166.57 + 135.74 + 148.12 + 113.94 + 190.13 + 235.31 + 102.57 + 124.02 + 142.40 + 108.60 + 110.50 + 163.82 + 183.01
Evaluate
Sum = 2025.58
The number of observations is 14.
So, the mean is:
Mean = 2025.58/14
Divide
Mean = 144.68
Hence, the mean of Dave’s nightly tips is $144.68
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The mass of the sun is approximately 2 × 10^30 kilograms. A golf ball has a mass of about 0.05 kilogram. About how many times as great is the mass of the sun as the mass of a golf ball? Express your answer in scientific notation.
The mass of the sun is 4 x 10³¹ times the mass of a golf ball.
What is Division method?
Division method is used to distributing a group of things into equal parts.
Given that;
The mass of the sun = 2 x 10³⁰ kilograms.
The mass of golf ball = 0.05 kilogram = 5 x 10⁻² kilograms
Now, Calculate the mass of the sun about the mass of the golf ball as;
The mass of the sun/the mass of a golf ball = 2 x 10³⁰/ 5 x 10⁻²
= 4 x 10³¹
So, The mass of the sun is 4 x 10³¹ times the mass of a golf ball.
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56 is what decimal part of 70
Answer:
it is 0.8
Step-by-step explanation: to get 56/70 converted to decimal you simply have to divide 56 by 70.
On a map, two locations are 0.75 cen timeter apart. Their actual distance is 15 kilometers apart. What scale could be shown on the map? Select three options.
Options:
A.0.25 centimeter = 3 kilometers
B.0.4 centimeter = 8 kilometers
C.0.75 centimeter = 15 kilometers
D.3 centimeters = 60 kilometers
E.6 centimeters = 144 kilometers
Answer:
B, C, D
Step-by-step explanation:
Distance between the two locations :
On map = 0.75 centimeter
Actual = 15 km
Using the scale drawing notation :
On map : actual
0.75 cm : 15 km
Therefore,
Actual / on map
15 / 0.75 = 20
This means :
1 cm on map represents 20 km on land
0.25 cm on map = (20 * 0.25) = 5 kilometers
0.4 cm on map = (20 * 0.4) = 8 kilometers
0.75 cm on map = (20 * 0.75) = 15 kilometers
3 cm on map = (20 * 3) = 60 kilometers
6 cm on map = (20 * 6) = 120 kilometers
Hence, only options B, C and D are correct
Answer:
b,c,d are correct.
Step-by-step explanation:
just shortened the answer above me°∪°
If the tangent line to y=f(x) at (4,3) passes through the point (0,2), Find f(4) and f'(4)?
f(4) = 3 and f'(4) = m, where m is the slope of the tangent line to the function f(x) at the point (4, 3).
Since the tangent line passes through (4, 3), we can use the point-slope form of a linear equation to determine the equation of the tangent line. Let the equation of the tangent line be y = mx + b, where m is the slope of the tangent line. We know that the slope of the tangent line is equal to the derivative of f(x) evaluated at x = 4, so m = f'(4).
Substituting the point (4, 3) into the equation of the tangent line, we get 3 = 4m + b.
Since the tangent line also passes through (0, 2), we can substitute these coordinates into the equation of the tangent line to get 2 = 0m + b.
From the above two equations, we can solve for b, which gives us b = 2.
Now we have the equation of the tangent line as y = mx + 2, and we know that it represents the function f(x) at the point (4, 3). Therefore, f(4) = 3.
Finally, we can determine f'(4) by substituting the value of m into the equation of the tangent line. So f'(4) = m.
In summary, f(4) = 3 and f'(4) = m, where m is the slope of the tangent line to the function f(x) at the point (4, 3).
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Find two numbers that the quotient is between.
4,096 divided by 61
The quotient is between _ and _
Answer:
Hi, I'm Za'Riah! I will gladly assist you with your problem. (see explanation)
Step-by-step explanation:
see image
The quotient from 4,096 divided by 61 is between 66 and 67.