8 less than a number
Answer:
13 is the answer to 8 less than a number
Write an equation of the line passing through the given point (2,-5) and having the given
slope m= -6. Write the final answer in slope-intercept form.
Answer:
y = -6x + 7
Step-by-step explanation:
To write an equation of the line passing through the point (2,-5) with a slope of m = -6, we can use the point-slope form of the equation of a line:
y - y1 = m(x - x1)
Where (x1, y1) is the given point and m is the slope.
Substituting the given values, we get:
y - (-5) = -6(x - 2)
Simplifying:
y + 5 = -6x + 12
y = -6x + 7
y = -6x + 7
Therefore, the equation of the line passing through the point (2,-5) with a slope of m = -6 is:
y = -6x + 7
The answer is:
y = -6x + 7Work/explanation:
First, I will write the equation in point slope
\(\mapsto\phantom{333}\bf{y-y_1=m(x-x_1)}\)
WHERE:
m = slope
(x₁,y₁) is a point
________
Plug in the data:
\(\boxed{\large\begin{gathered}\bf{y-(-5)=-6(x-2)}\\\bf{y+5=-6x+12}\\\bf{y=-6x+12-5}\\\bf{y=-6x+7}\end{gathered}}\)
Hence, the equation is y = -6x + 7.Brandt is driving to Washington, D.C. from Richmond, VA, which is 109.5 miles away. His average driving speed is 55 mph.
1. Write an equation to model Brandt’s distance from Washington, D.C. as a function of time, in hours.
2.Use the equation to determine how long it will take him to arrive at a rest stop that is 60.2 miles from Richmond, VA.
1. The linear function that models his distance from Washington, D.C. as a function of time, in hours, is:
d(t) = 109.5 - 55t.
2. The time it will take him to arrive at a rest stop that is 60.2 miles from Richmond, VA is of: 0.9 hours = 54 minutes.
What is a linear function?The slope-intercept representation of a linear function is given by the equation shown as follows:
y = mx + b
The coefficients of the function and their meaning are described as follows:
m is the slope of the function, representing the change in the output relative to a change of one in the input.b is the y-intercept of the function, which is the initial value of the function.In the context of this problem, these parameters are given as follows:
b = 109.55, which is the distance from Washington to Richmond.m = -55, as each hour, the distance decreases by 55.Hence the function is:
d(t) = 109.5 - 55t.
The time it will take him to arrive at a rest stop that is 60.2 miles from Richmond, VA is t when d(t) = 60.2 hence:
60.2 = 109.5 - 55t.
55t = 109.5 - 60.2
t = (109.5 - 60.2)/55
t = 0.9 hours = 54 minutes.
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A spaceship on a journey between planets would have to recycle as much air and water as possible. Suppose the crew on such a spaceship used 32.99 L of water one day and recycled all but 0.24 L. About what percent of the water was lost?
Sally does 12 loads of laundry every week. On average how many loads of laundry does sally do in one day
Make X the
subject of m=n+x/p
Answer:
x = pm - pn
Step-by-step explanation:
m = n + \(\frac{x}{p}\) Subtract n from both sides
m - n = n - n + \(\frac{x}{p}\)
m-n = \(\frac{x}{p}\) Multiply both sides by p
p(m - n) = (\(\frac{p}{1}\)) \(\frac{x}{p}\) \(\frac{p}{1}\) means the same as p
pm - pn = x Distribute the p
x = pm - pn
What is the volume of a cylinder with a radius of 8cm and a height of 21cm? Round to the nearest tenths place
Answer:
hope this helps
solve the simultaneous equations
5x+y = 21
x - 3y = 9
Answer: x = 4.5, y = -4.5/3
Step-by-step explanation:
5x+y = 21 ---- 1
x - 3y = 9 ----- 2
Using Elimination Method, we can solve for x,
Multiply Eq 1 with 3-
15x+3y = 63
(1) + (2)
15x+3y = 63
x - 3y = 9
___________
16x = 72
x = 4.5
Hence, putting x in Eq 2, gives us y = -4.5/3
what is the output on this graph when the input is 2?
How to find input and output from the co-ordinates on the graph?
If a pair be (x,y) then x is the input and y is the outputHere the co-ordinate having x=2 is
(2,0)So the output is 0
Every pair have ( x , y ) which means x is input and y is output .
Here , input is 2 (x)
then , let output be y ( indicate with 0 )
So , the co- ordinates are ( x , y ) = ( 2 , 0 ) .
Simplify 6-2x + 5+4x
Answer:
2x + 11
Step-by-step explanation:
We are given
6 - 2x + 5 + 4x
Combining like terms with x, we have
6 + 5 + 2x
Combine like terms again, this time constants
11 + 2x
what is the answer ?
Answer: 64
Step-by-step explanation:
8x=
8(8)=
8*8=64
Answer:
64
Step-by-step explanation:
To solve this equation, we have to plug 8 into x.
Plug 8 into x and multiply
8(8)
= 64
Take care and have a lovely rest of your day! :)
On Saturday, Alicia ran 2 miles. This was 0.3 miles farther than Henry ran. Write and solve an
an addition equation to find out how many miles Henry ran.
Answer: a - 0.3.
Step-by-step explanation;
Let a represent the number of miles that Alicia ran. The equation will be this: a - 0.3. You will subtract 0.3 from the number of miles that Alicia ran because her amount is 0.3 miles farther than what Henry ran.
please I need help?
3A. Explain in your own words how to find the domain of a function if you know its equation.B. Find the domain of f (x) =√9-7x6x?+13x-15Be sure to show relevant work.
Solution
Step 1
A)The domain refers to all real values of x for which the function is defined. The values of x for which the function is undefined are not a part of the domain. If you are given the equation then you can find the domain of that function by solving/ factorizing the denominator of the equation to find the zero(s) of the equation in the denominator. These values gotten are the values of x that will make the function undefined and hence are not part of the domain. Every other real value of x apart from these zero(s) obtained is part of the domain.
B)
Step 1
Factorize the denominator of the equation to find the zeroes of the equation
\(6x^2+13x-15=0\)Step 2
Find the required factors to replace 13x and is equal to -90x²
\(\text{These factors are 18x and -5x}\)Step3
Replace 13x with these factors
\(6x^2+18x-5x-15=0\)Step 4
Factorize the equation and find the values of x
\(\begin{gathered} (6x^2+18x)(-5x-15)=0 \\ 6x(x+3)\text{ -5(x+3)=0} \\ (6x-5)(x+3)=0 \\ 6x-5\text{ = 0} \\ 6x=5 \\ x=\frac{5}{6}\text{ OR} \\ x+3=0 \\ x=-3 \end{gathered}\)Hence, the domain of the function is all real values of x except -3 and 5/6
5(–9x + 1) + 5 = –10x + 5(–7x + 2)
Answer:-
here's the answer
I need to know how to solve a math question
The number of triangles for every 3 circles is given as follows:
C. 5.
How to obtain the number of triangles?The number of triangles for every 3 circles is obtained applying the proportions in the context of the problem.
From the figure, we have that:
There are 6 circles.There are 10 triangles.Hence the number of triangles per circle is given as follows:
10/6 = 5/3.
Hence the number of triangles for 3 circles is given as follows:
3 x 5/3 = 5.
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A random variable X has a Poisson distribution with a mean of 3. What is the probability that X P(1≤X≤3) ?.
Answer:
P(1≤X≤3) = 0.5974
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
\(P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}\)
In which
x is the number of sucesses
e = 2.71828 is the Euler number
\(\mu\) is the mean in the given interval.
Mean of 3
This means that \(\mu = 3\)
P(1≤X≤3) ?
\(P(1 \leq X \leq 3) = P(X = 1) + P(X = 2) + P(X = 3)\)
So
\(P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}\)
\(P(X = 1) = \frac{e^{-3}*3^{1}}{(1)!} = 0.1494\)
\(P(X = 2) = \frac{e^{-3}*3^{2}}{(2)!} = 0.2240\)
\(P(X = 3) = \frac{e^{-3}*3^{3}}{(3)!} = 0.2240\)
So
\(P(1 \leq X \leq 3) = P(X = 1) + P(X = 2) + P(X = 3) = 0.1494 + 0.2240 + 0.2240 = 0.5974\)
twice the difference of a number and 2 is 9
The difference of a number and 2: x-2
Twice the difference of a number and 2: 2(x-2)
Is 9.
2(x-2) = 9
2x - 4 = 9
2x = 13
x = 13/2 = 6 1/2
Couldn’t fit all answers choices please help
a rectangular solid (with a square base) has a surface area of square centimeters. find the dimensions that will result in a solid with maximum volume.
The dimensions will be x = 7.5 cm and y = 7.5 cm where x is the side of the base and y is the height of the solid.
We are given that:
The solid has a square base.
So, the area of the base will be:
A = x² ( where x = side of the square)
Also, it is a rectangular solid, so let the height be y.
Volume will be:
V = x² × y
V = x²y
The surface area is given as:
S = 337.5 cm²
x² + x² + xy + xy + xy+ xy = 337.5 cm²
2x² + 4 x y = 337.5 cm²
y = (337.5- 2 x²) / (4 x)
Plug into the equation of volume:
V = x² (337.5- 2 x²) / (4 x)
V = (337.5 x- 2 x³) / 4
Differentiate with respect to x:
V' = (337.5 - 6 x²) / 4
Put it equal to 0:
337.5 - 6 x² = 0
x² = 337.5 / 6
x = ±7.5
Dimension will be:
x = 7.5 cm ( as it cannot be negative)
y = 7.5 cm.
Therefore, the dimensions will be x = 7.5 cm and y = 7.5 cm where x is the side of the base and y is the height of the solid.
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Your question was incomplete. Please refer the content below:
A rectangular solid (with a square base) has a surface area of 337.5 square centimeters. Find the dimensions that will result in a solid with maximum volume.
A hawk was flying at an elevation of 215 feet, looking for new hunting ground. It rose 95 feet as it continued to search.
What is the elevation of the hawk now
plz help
Answer:
310
Step-by-step explanation:
well it was already at 215 as it rose it increased by 95 now we would add that wich equals
215+95=310
Answer:
310 feet
Step-by-step explanation:
215+95=310 feet
The Bower family and the Jones family went to a restaurant and ordered food.
• Each burger cost the same, and each drink cost the same.
• The Bowers ordered 3 burgers and 2 drinks for a total of $13.50.
• The Joneses ordered 5 burgers and 4 drinks for a total of $23.50.
Which system of equations can be used to determine the cost of each burger, m, and each drink, p?
Answer:
right now in Bonny
Step-by-step explanation:
am so sorry for your prayers
hope it helps
Which of the sets of ordered pairs represents a function? (5 points) A = {(3, −5), (4, 6), (−3, 9), (2, 7)} B = {(2, 4), (−1, −7), (5, 6), (4, 3)}
Answer:
Really you can do that next time send a picture of what it says. :) That would help.
Step-by-step explanation:
Just do what it says maybe show it for help then graph them. Your welcome :)
Alica created a portrait that is 10 inches wide and 13 inches long she wants to put a frame that is 2 1/4 wide on each side
Answer:
\(A_f=470ft\)
\(P_f=88ft\)
Step-by-step explanation:
From the question we are told that:
Width of Portrait \(w=10inches\)
length of Portrait \(l=13inches\)
Frame each \(l_W=21/4inch each\)
Generally the equation for area of portrait A is mathematically given by
\(A=w*l\\A=10*13\\A=130m^2\)
Generally the equation for Perimeter of portrait is mathematically given by
\(P=2(w+l)\\P=2(10+13)\\P=46m\)
Generally the equation for area of portrait with frame is mathematically given by
\(A=w_f*l_f\)
where
w_f=width of portrait with frame
\(w_f=2*21/4+w\\w_f=2*21/4+10\\w_f=20.5ft\)
l_f=Length of portrait with frame
\(l_f=2*21/4+l\\l_f=2*21/4+13\\l_f=23.5ft\)
Therefore Area of picture with frame
\(A_f=w_f*l_f\)
\(A_f=20.5*23.5\)
\(A_f=470ft\)
Generally the equation for Perimeter of portrait is mathematically given by
\(P_f=2(w_f+l_f)\\P_f=2(20.5+23.5)\\P_f=88ft\)
Simplify the expression. Write your answers using integers or improper fractions.
− 3/2(1/2 n+2n−3)+4n
The expression is simplified to n - 16/ 4
What are algebraic expressions?
Algebraic expressions are expressions comprising of terms, variables, factors, constants and coefficients.
They are also made up of mathematical operations such as addition, subtraction, multiplication, division, bracket, etc.
Given the expression;
− 3/2(1/2 n+2n−3)+4n
Solve the variables in the bracket, we have;
- 3/ 2 { n + 4n - 6 / 2} + 4n
-3/2 { 5n - 6/ 2 } + 4n
expand the bracket
- 15n - 18/ 4 + 4n
Fin the LCM
-15n - 16 + 16n /4
n - 16/ 4
Thus, the expression is simplified to n - 16/ 4
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Find the value of f(5) for the function.
f(a)=3(a+2)−8
Answer:
f(5) = 3(5+2) - 8
f(5) = 15+6 -8
f(5) = 21 - 8
f(5) = 13
what is the variable for -7.8 = 4.4 + 2r
Answer:
r = -6.1
Step-by-step explanation:
-7.8 = 4.4 + 2r
To get r, you need to isolate the variable
Subtract the 4.4 from both sides
-7.8 - 4.4 = 4.4 + 2r - 4.4
4.4 cancels out on the right
-12.2 = 2r
Divide both sides by 2
-12.2/2 = 2r/2
-6.1 = r
Examine the diagram.
XX
15
3/7
26
4 8
Angle 4 and angle
angles.
are alternate interior
Answer:
angle 5
Step-by-step explanation:
Given transversal x crossing lines y and z and angles numbered 1 to 8, you want the number of the angle that is an alternate interior angle to angle 4.
Alternate interior anglesIn this context, "alternate" mean the angles are on opposite sides of the transversal. "Interior" means the angles are between the lines the transversal crosses.
The term "alternate interior angles" is used to refer to angles that have their vertices at the intersection points where the two lines cross the transversal. (It excludes angles that have the same vertex, or do not share a side.)
The angle that is an alternate interior angle relative to angle 4 is angle 5.
Which of the following scenarios describes independent events from disjoint sets?1) A bag contains orange, yellow, and purple marbles. You randomly draw 2 marbles at the same time and want to know the probability that either marbleis orange.II) You roll a number cube and spin a spinner. You want to know the probability of rolling a 3 and spinning a B.ill) Lunch includes a choice of salad and a choice of vegetables. You want to know the probability of choosing a chef salad and asparagus as yourvegetableIV) A math class has 30 students. The teacher chooses 2 students at random. You want to know the probability that one of the two students will befemale
Independent events are not affected by previous events, that is, the probability of a new event doesn't change from the previous event. However, disjoint sets mean they don't have any data in common, which means the intersection of such sets is impossible. In other words, the events are exclusive, if one occurs, then the other can't occur.
Having said that, we can deduct that scenario 1 represents an independent exclusive event because the occurrence of one event excludes the other. The main reason is that there's just one orange marble.
Hence, the answer is I only.S=2n+2u solve for n.
Answer:
n=(S/2)-u
Step-by-step explanation:
First, let's isolate 2n.
S-2u=2n
Let's divide both sides by 2.
(S/2)-u=n
n=(S/2)-u
Answer:
n= S/2 -vu
Step-by-step explanation:
S=2n+2u2n= S- 2un= (S- 2u)/2n= S/2 - u