Answer: It is true, I explained it down below in the picture.
Step-by-step explanation:
Simplify the following expression.
4(8c + 4)
C +
Answer:
32c + 16
Step-by-step explanation:
\(4(8c + 4)\)
\(4 \times 8c + 4 \times 4\)
\(32c + 4 \times 4\)
\( = 32c + 16\)
y - ( -3y ) what is the answer????
Answer:
4y
Step-by-step explanation:
y - -3y
Subtracting a negative is like adding
y+3y
Combine like terms
4y
Answer:
\(4y\)
Step-by-step explanation:
\(y - ( - 3y) \\ y + 3y \\ = 4y\)
hope this helps
brainliest appreciated
good luck! have a nice day!
Find the sum.
(-3.4k-7)+(3k+21)
Please and Thank You :)
Answer:
k=(n+3)/6
Step-by-step explanation:
algebra class but I think im wrong
Problem 4.1
The table gives some sample data for two quantities, x and y, that are in a proportiona relationship. Complete the table.
Then the complete table is:
x y
14 21
64 96
26 39
What dοes the arithmetic wοrd prοpοrtiοnal mean?When the ratiοs οf the twο variables are equal, there is a prοpοrtiοnal relatiοnship. Anοther way tο view them is that they are twο variables, οne οf which is always a cοnstant value multiplied by the οther in a prοpοrtiοnate manner.
A prοpοrtiοnal relatiοnship between twο variables can be written as:
y = kx
Where k is the cοnstant οf prοpοrtiοnality.
If we lοοk at the table we can see the pair (14, 21), replacing that in the prοpοrtiοnal relatiοn we have:
21 = k*14
(21/14) = k
(3/2) = k
Then the equatiοn is:
y = (3/2)*x
Tο cοmplete the table, we need tο evaluate the οther values in the given equatiοn.
fοr x = 64 we have:
y = (3/2)*64 = 96
fοr y = 39 we have:
39 = (3/2)*x
x = (2/3)*39 = 26
Fοr x = 1 we have:
y = (3/2)*1 = 3/2
Then the complete table is:
x y
14 21
64 96
26 39
1 3/2
To know more about proportional visit:
brainly.com/question/30657439
#SPJ1
has a perimeter of 52 feet. Let W be the width, L be the length, and P be
the perimeter, all with units in feet.
a. Given two sets of four rectangles, find one rectangle in each set that could have a
perimeter of 52 feet.
b. Which of the symbols W, L, and P are variables?
c. Which of the symbols W, L, and P are constants?
A rectangle that could have a perimeter of 52 feet is a 12 feet by 14 feet rectangle.
The symbols W and L are variables.
The symbol P is a constant.
How to calculate the perimeter of a rectangle?In Mathematics and Geometry, the perimeter of a rectangle can be calculated by using this mathematical equation (formula);
P = 2(L + W)
Where:
P represent the perimeter of a rectangle.W represent the width of a rectangle.L represent the length of a rectangle.By substituting the given side lengths into the formula for the perimeter of a rectangle, we have the following;
P = 2(L + W)
52 = 2(12 + 14)
52 = 2(26)
52 feet = 52 feet.
Read more on perimeter of a rectangle here: brainly.com/question/28695033
#SPJ1
I WILL GIVE BRAINLIEST I NEED HELP
Answer:
c
Step-by-step explanation:
Use all the information below to find the missing x-value for the point that is on this line. m = - 1 / 3 b = 7 ( x, 4 )
Answer:
\(\boxed{x = 9}\)
Step-by-step explanation:
m = -1/3
b = 7
And y = 4 (Given)
Putting all of the givens in \(y = mx+b\) to solve for x
=> 4 = (-1/3) x + 7
Subtracting 7 to both sides
=> 4-7 = (-1/3) x
=> -3 = (-1/3) x
Multiplying both sides by -3
=> -3 * -3 = x
=> 9 = x
OR
=> x = 9
Answer:
x = 9
Step-by-step explanation:
m = -1/3
b = 7
Using slope-intercept form:
y = mx + b
m is slope, b is y-intercept.
y = -1/3x + 7
Solve for x:
Plug y as 4
4 = 1/3x + 7
Subtract 7 on both sides.
-3 = -1/3x
Multiply both sides by -3.
9 = x
HELP ASAP PLS!Select the correct answer.
Twenty students in Class A and 20 students in Class B were asked how many hours they took to prepare for an exam. The data sets represent their answers.
Class A: {2, 5, 7, 6, 4, 3, 8, 7, 4, 5, 7, 6, 3, 5, 4, 2, 4, 6, 3, 5}
Class B: {3, 7, 6, 4, 3, 2, 4, 5, 6, 7, 2, 2, 2, 3, 4, 5, 2, 2, 5, 6}
Which statement is true for the data sets?
A.
The mean study time of students in Class A is less than students in Class B.
B.
The mean study time of students in Class B is less than students in Class A.
C.
The median study time of students in Class B is greater than students in Class A.
D.
The range of study time of students in Class A is less than students in Class B.
E.
The mean and median study time of students in Class A and Class B is equal.
Answer:
The answer is B
Step-by-step explanation:
Class A: mean is 4.8
Class B: mean is 4
How do I solve this by taking square roots ? 100m² - 5=44
Answer:
\(\frac{7}{10}\)
Step-by-step explanation:
100\(m^{2}\) -5 = 44 Add 5 to both sides
100\(m^{2}\) = 49 Divide both sides by 100
\(m^{2}\) = \(\frac{49}{100}\)
\(\sqrt{m^{2} }\) = \(\frac{\sqrt{49} }{\sqrt{100} }\)
m = \(\frac{7}{10}\)
Is the figure line symmetric?
If yes, how many lines of symmetry does the figure have?
Snow flake
A.
No
B.
Yes; 3 lines of symmetry
C.
Yes; 6 lines of symmetry
D.
Yes; 12 lines of symmetry
The figure is indeed symmetric and the number of lines of symmetry the snowflake has is C. Yes; 6 lines of symmetry.
How many lines of symmetry does a snowflake have ?Generally a snowflake is hexagonal and has 6-way radial symmetry. Thus, one can rotate it 60 degrees (the sixth of full rotation) and it still appears the same.
So, overall, this means that a snowflake holds 6 lines of symmetry which divide it into two identical halves reflecting each other. Consequently, it can be rotated in 60-degree increments and still holds identicality. Akin to this final property, the snowflake artifact possesses six uniquely divided
Find out more on lines of symmetry at https://brainly.com/question/28709515
#SPJ1
Describe and correct the error a student made in writing the exponential function.
Starting value 6
Constant ratio - 1/3
f(x) = 6(1/3)^x
f(x)=2^x
The correct equation of exponential function is \(f(x) = 6 * (\frac{1}{3} )^x\)
What is an exponential function?
An exponential function is one that has the formula f (x) = \(a^{x}\), where x is a variable and a constant that serves as the function's base and must be greater than 0.
Given,
starting value = 6
constant ratio = 1/3
The general form of an exponential function
\(f(x) = ab^{x}\)
where a = starting value i.e when x = 0
b = rate of change in exponential equation
So substituting our given values in the above equation, the exponential function is
\(f(x) = 6 * (\frac{1}{3} )^x\)
Now the value 6 can be divided by 3 only if the value of x = 1
\(f(1) =\frac{6}{3} = 2\)
If x = 5, then equation becomes,
\(f(5) = 6 * (\frac{1}{3} )^5 = \frac{2}{81}\)
So we cannot simply divide 6 by 3 without considering the value of x.
Therefore the correct equation of exponential function is
\(f(x) = 6 * (\frac{1}{3} )^x\)
To learn more about exponential function, follow the link.
https://brainly.com/question/2456547
#SPJ1
The total angle of a kite is............
Since a kite is a quadrilateral, it has the value of 360 total degrees.
If you estimate that a piece of wood measures 5.5cm if it actually measures 5.62cm what is the percent error of the estimate
The percent error of the estimate is -2.14%
How to determine the percent error of the estimate?In this question, the figures are given as
Estimate = 5.5 cm
Actual = 5.62 cm
The percentage of the error is then calculated using the following equation
Error percentage = (Estimate - Actual)/Actual * 100%
Substitute the known values in the above equation, so, we have the following representation
Error percentage = (5.5 - 5.62)/5.62 * 100%
Evaluate
Error percentage = -2.14%
Hence, the error percentage is -2.14%
Read more about percentage at
brainly.com/question/15056889
#SPJ1
The number 2/5 is both an blank and an blank
The number 2/5 is both a ratio and a fraction.
How to describe the numberThe number 2/5 is both a ratio and a fraction. Fractions are meant to signify the numerator and denominator in an expression. in the above expression, we have the denominator as 5 and the numerator as 2.
The expression is also a ratio because it indicates the quantitative relationship between the figures.
Learn more about ratios and fractions here:
https://brainly.com/question/2328454
#SPJ1
13. In the figure, ABCDE is a regular pentagon and ABPQRS is a regular hexagon. X is the centre of the hexagon.
Find
(i) ABP,
(ii) PQX.
The value of ABP is 120°
The value of PQX is 60°
What is a Hexagon?
A hexagon, also known as a sexagon, is a six-sided polygon that forms the shape of a cube in geometry. Any simple hexagon has 720° of internal angles in total.
To find their values:
Recall that in a regular hexagon, (6-2) x 180°/ 6 = 120°
Also, (5-2) x 180°/5 = 108°
With these values, we would find that the value of ABP is 120°
<PQX = 120°/2 = 60°
Read more about hexagons here:
https://brainly.com/question/1615720
#SPJ1
what is the solution for 15= 1/2 + 3/2x + 10
Answer:
x = 3
Step-by-step explanation:
at which points do the graphs of y= x+1 and y=2^2 intersection
The graphs of y = x + 1 and y = 2^x intersect at approximately (-0.3517, 0.6483) and (1.561, 3.561).
To find the points of intersection between the graphs of y = x + 1 and y = 2^x, we need to set the two equations equal to each other and solve for x.
Setting y = x + 1 equal to y = 2^x, we have:
x + 1 = 2^x
To solve this equation, we can use numerical methods or make observations to find the points of intersection. By observing the behavior of the two functions, we can see that they intersect at two points: one when x is negative, and another when x is positive.
For x < 0, the exponential function y = 2^x approaches 0 as x approaches negative infinity, while the linear function y = x + 1 continues to decrease as x becomes more negative. Thus, there is one point of intersection in this region.
For x > 0, the exponential function grows faster than the linear function, so there is another point of intersection in this region.
However, finding the exact values for the points of intersection requires numerical methods such as using a graphing calculator or solving the equation numerically. Approximate values for the points of intersection can be found as x ≈ -0.3517 and x ≈ 1.561.
for more such questions on graphs
https://brainly.com/question/29538026
#SPJ8
The triangles below are similar. Find the length of x.
Answer:
D
Step-by-step explanation:
If the triangles are similar, their side ratios are equal
\( \frac{54}{12} = \frac{x}{15} \)
Cross-multiply to find x:
\(x = \frac{54 \times 15}{12} = 67.5\)
A triangle has a perimeter of 75 inches. Find the length of three sides
if one side is 15 inches larger than the smallest side, and the third
side is twice the smallest
Answer:
The side lengths are:
15, 30, and 30
Step-by-step explanation:
Let x determine the length of the smallest side length then
the other one is said to be 15 in larger so it's x + 15
finally the third size is said to be twice as the smallest one so it's 2x
The perimeter is the sum of all three sides added up
x + 2x + x + 15 = 75 add like terms
4x + 15 = 75 subtract 15 from both sides
4x = 60 divide both sides by 4
x = 15
2㏒x-㏒[x-2]=2㏒3: solve the equation
Step-by-step explanation:
\(2 log(x) - log(x - 2) = 2 log(3) \)
\( log(x {}^{2} ) - log(x - 2) = log(9) \)
\( log( \frac{ {x}^{2} }{x - 2} ) = log(9) \)
\( \frac{ {x}^{2} }{x - 2} = 9\)
\( {x}^{2} = 9x - 18\)
\( {x}^{2} - 9x + 18 = 0\)
\((x - 3)(x - 6) = 0\)
\(x = 3\)
and
\(x = 6\)
A saleswoman earns 7% commission on all the merchandise that she sells. Last month she sold $8,000 worth of merchandise. How much commission (in dollars) did she earn last month?
Answer:
560
Step-by-step explanation:
8000x.07
How long must 100 be invested at a rate of 4% to earn 32.00 in interest
The lines shown below are perpendicular. If the green line has a slope of 2,
what is the slope of the red line?
-10
10
16
A. ¾/1
O A.
B.
O C.
O D. - 3/4
None of the given answer options (-10, 10, 16, ¾/1) correspond to the correct slope of -1/2.
To find the slope of the red line given that it is perpendicular to the green line with a slope of 2, we can use the property that perpendicular lines have slopes that are negative reciprocals of each other.
The slope of the green line is 2. To find the slope of the red line, we take the negative reciprocal of 2. The negative reciprocal is obtained by taking the reciprocal (flipping the fraction) and changing the sign.
Reciprocal of 2: 1/2
Negative reciprocal: -1/2
Therefore, the slope of the red line is -1/2.
However, none of the given answer options (-10, 10, 16, ¾/1) correspond to the correct slope of -1/2.
for such more question on perpendicular
https://brainly.com/question/18991632
#SPJ8
The lines below are parallel. If the slope of the green line is -4, what is the slope of the red line?
Answer:
-4
Step-by-step explanation:
Hey there!
Well the slopes of 2 parallel lines have the same slope,
meaning if the green line has a slope of -4 then the slope of the red line has a slope of -4.
Hope this helps :)
A hockify season ticket holder pays $99.00 for her tickets plus $3.00 for a program each game. A secondperson pays $14.00 for a ticket to every game, but doesn't buy programs. In how many games will they havepaid the same amount?0 33O 6O 8O 9
The first person pays $99.00 for her tickets plus $3.00 for a program each game.
The equation that represents this scenario is:
\(y_1=99.00+3.00\cdot x\)Where x is the number of games and y is the amount paid.
Now, the second person pays $14.00 for a ticket every game, thus the equation that represents this situation is:
\(y_2=14.00\cdot x\)When they have paid the same amount it means y1=y2. Then equal both equations and solve for x:
\(\begin{gathered} 99.00+3.00x=14.00x \\ \text{Subtract 3.00x from both sides} \\ 99.00+3.00x-3.00x=14.00x-3.00x \\ 99.00=11x \\ \text{Divide both sides by 11:} \\ \frac{99.00}{11}=\frac{11x}{11} \\ 9=x \end{gathered}\)Therefore, in 9 games they will have paid the same amount.
Rozalie spent $26 at a parking garage in downtown Orlando. The garage charged a base free of $7.50 for the first hour and a hourly rate of $2.75 for each additional hour. The following sign is displayed to show the prices for the first 4 hours.
money money moneyiuahssssssssssssssssssssss
Are the points H and L collinear?
E
S
H
If trapezoid JKLM is translated using the rule (x, y) → (x + 3, y − 3) and then translated using the rule (x, y) → (x − 1, y + 1) to create trapezoid J″K″L″M″, what is the location of L″?
The location of L″ is (-5, 0).
To find the location of L″, we first need to apply the first translation rule to the coordinates of trapezoid JKLM:
J': (x, y) → (x + 3, y - 3) => J'(-2+3, 1-3) = J(1, -2)
K': (x, y) → (x + 3, y - 3) => K'(1+3, 1-3) = K(4, -2)
L': (x, y) → (x + 3, y - 3) => L'(3+3, -2-3) = L(6, -5)
M': (x, y) → (x + 3, y - 3) => M'(-4+3, 2-3) = M(-1, -1)
Now, we need to apply the second translation rule to the coordinates of J', K', L', and M':
J'': (x, y) → (x - 1, y + 1) => J''(1-1, -2+1) = J''(0, -1)
K'': (x, y) → (x - 1, y + 1) => K''(4-1, -2+1) = K''(3, -1)
L'': (x, y) → (x - 1, y + 1) => L''(6-1, -5+1) = L''(5, -4)
M'': (x, y) → (x - 1, y + 1) => M''(-1-1, -1+1) = M''(-2, 0)
Therefore, the location of L″ is (-5, 0).
Learn more about Transformation here:
https://brainly.com/question/13801312
#SPJ1
Answer:
(5,-4)
Step-by-step explanation:
A local restaurant uses a computer to randomly select an appetizer and accompanying sauce. The table below shows all the
possible outcomes when ordering
What is the probability of receiving chicken or ribs and getting a red sauce?
Answer:
B 1/5
Step-by-step explanation:
there is 20 combinations
4 of the twenty are ribs or chicken with a red sauce
4/20 = 1/5
A diphosphonate kit contian 180 mCi of Tc99m in 30 ml when it is prepared at 8am. Immediately, a 20 mCi dose is withdrawn for a bone scan. if the patient arrives late at 9:30 and half the volume is accidentally discharged, how much volume from the kit must now be added to the syringe to correct the dose to 20 mCi? (no other doses have been withdrawn meanwhile, and the decay factor for 1.5 hrs is 0.841)
The remaining Kit volume in the syringe is sufficient to correct the dose to 20 mCi.
To solve this problem, we can use the concept of radioactive decay and the decay factor. Here's how we can calculate the required volume to correct the dose:
Determine the initial activity of the kit:
Initial activity = 180 mCi
Calculate the decayed activity at 9:30 (after 1.5 hours):
Decay factor = 0.841
Decay activity = Initial activity * Decay factor
Calculate the remaining activity after withdrawing 20 mCi at 8 am:
Remaining activity = Initial activity - 20 mCi
Calculate the remaining activity at 9:30:
Remaining activity at 9:30 = Remaining activity * Decay factor
Calculate the desired activity at 9:30 (20 mCi):
Desired activity at 9:30 = 20 mCi
Calculate the volume needed to achieve the desired activity:
Volume needed = Desired activity at 9:30 / Remaining activity at 9:30 * Volume at 9:30
Calculate the remaining volume at 9:30:
Remaining volume = Volume at 8 am - Volume withdrawn - Volume accidentally discharged
Calculate the volume that needs to be added:
Volume to be added = Volume needed - Remaining volume
Let's perform the calculations step by step:
Determine the initial activity of the kit:
Initial activity = 180 mCi
Calculate the decayed activity at 9:30 (after 1.5 hours):
Decay factor = 0.841
Decay activity = 180 mCi * 0.841 = 151.38 mCi
Calculate the remaining activity after withdrawing 20 mCi at 8 am:
Remaining activity = 180 mCi - 20 mCi = 160 mCi
Calculate the remaining activity at 9:30:
Remaining activity at 9:30 = 160 mCi * 0.841 = 134.56 mCi
Calculate the desired activity at 9:30 (20 mCi):
Desired activity at 9:30 = 20 mCi
Calculate the volume needed to achieve the desired activity:
Volume needed = (Desired activity at 9:30 / Remaining activity at 9:30) * Volume at 9:30
Volume at 9:30 = Remaining volume = 30 ml - (30 ml / 2) = 15 ml
Volume needed = (20 mCi / 134.56 mCi) * 15 ml = 2.236 ml
Calculate the remaining volume at 9:30:
Remaining volume = 30 ml - (30 ml / 2) = 15 ml
Calculate the volume that needs to be added:
Volume to be added = Volume needed - Remaining volume = 2.236 ml - 15 ml = -12.764 ml
Since the calculated volume to be added is negative, it means that no additional volume is required. The remaining Kit volume in the syringe is sufficient to correct the dose to 20 mCi.
For such more questions on Kit Volume Correction
https://brainly.com/question/22971212
#SPJ8