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3 years ago

7-10x/5 i’m not sure what the answer is

Mathematics

1 answer:

Trava [24]3 years ago

5 0

Answer:

7-2x

Step-by-step explanation:

7-10x/5

If it was 10x/5 then it becomes 2x

7-2x

but if was dividing 7-10x by 5 then it would just be 7-10x over 5

Hope this helps :)

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If 2x+1=5, then r=2.

astra-53 [7]

Answer:

if x=2 (r) then 2x+1=5

Step-by-step explanation:

Considering an "if and if only" type of function then the answer is A. if x=2 then 2x+1=5

3 0

3 years ago

Choose the point-slope form of the equation below that represents the line that passes through the point (6, −3) and has a slope

emmainna [20.7K]

Answer:

The point slope form of the equation that passes through the point (6, -3) and has a slope of one half is y + 3 = one half (x − 6) Thus Option C is correct

Solution:

Given that the line passes through the point (6, -3) and has a slope of one half

We have to find the point slope form of the line

The point slope form is given as

$y - y_1 = m(x - x_1)$

Where "m" is the slope of the line

Here in the given question, $m = \frac{1}{2} ; x_1 = 6 ; y_1 = -3$

Substituting the values we get,

$y - (-3) = \frac{1}{2} (x - 6)$

$y + 3 = \frac{1}{2} (x - 6)$

Thus option C is correct

6 0

3 years ago

Find the average rate of change of f(x)=2x-1 from x=-1 to x=2

MrMuchimi

The average rate of change from x = -1 to x = 2 is 2

Solution:

Given function is:

f(x) = 2x - 1

We have to find the average rate of change from x = -1 to x = 2

The average rate of change is given as:

$\text {Average rate of change}=\frac{f(b)-f(a)}{b-a}$

The average rate of change from x = -1 to x = 2 is given by formula:

$\text {Average rate of change}=\frac{f(2)-f(-1)}{2-(-1)}\\\\\text {Average rate of change}=\frac{f(2)-f(-1)}{3}$

Find f(2) and f( - 1)

Substitute x = 2 in given function

f(2) = 2(2) - 1 = 4 - 1 = 3

Substitute x = -1 in given function

f( - 1) = 2(-1) - 1 = -2 - 1 = -3

Substitute the values in above formula,

$\text {Average rate of change}=\frac{3-(-3)}{3}=\frac{6}{3}=2$

Thus average rate of change from x = -1 to x = 2 is 2

3 0

3 years ago

Jabo is standing next to a building. Jabo is 6.25 feet tall, and cast a shadow that 14 feet long. If the building cast a shadow

stich3 [128]

Answer:

64.286ft

Step-by-step explanation:

6.25-->14

x-->144in=12ft im going to asume you meant 144ft or that would be a very small building

14/6.25=2.24ft shadow for 1 real foot

144/2.24=about 64.286ft

5 0

3 years ago

PLEASE HELP NEED THIS TO PASS

yaroslaw [1]

The solutions to f(x) = 64 is x = 7 and x = –7.

Solution:

Given data:

$$f(x)=x^{2}+15$ – – – – (1)

$f(x)=64$ – – – – (2)

To find the solutions to f(x) = 64.

Equate equation (1) and (2), we get

$x^2+15=64$

Subtract 15 from both sides of the equation.

$x^2+15-15=64-15$

$x^2=49$

$x^2=7^2$

Taking square root on both sides of the equation, we get

x = ±7

The solutions to f(x) = 64 is x = 7 and x = –7.

5 0

4 years ago