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3 years ago

If f(x)=-16x + 70x + 5, what is f(3)?

Mathematics

2 answers:

fenix001 [56]3 years ago

8 0

Answer:

not sure

Step-by-step explanation:

someone plz help them

Svetach [21]3 years ago

4 0

Answer :
F(3)=-16(3)+70(3)+5
F(3)= 167
, check using your calculator

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Solve each absolute value equation number 1 |2x-3|=7

Dmitriy789 [7]

Answer:

x = -2, 5.

Step-by-step explanation:

|2x - 3| = 7

2x - 3 = 7

2x = 10

x = 5 or:

2x - 3 = -7

2x = -4

x = -2.

3 0

3 years ago

(1)/(2)(8y-4)=(3)/(4)(16-8y)

Talja [164]

Answer: y=7/5

Hope this helps

7 0

3 years ago

On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, negative 2) an

ExtremeBDS [4]

Answer:

$y\geq x-2$

$x+2y$

Step-by-step explanation:

step 1

Find the equation of the first inequality

Find the equation of the first solid line

we have the ordered pairs

(0,-2) and (2,0)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{0+2}{2-0}$

$m=\frac{2}{2}$

$m=1$

The equation in slope intercept form is equal to

$y=mx+b$

we have

$m=1$

$b=-2$ ---> the y-intercept is given

substitute

$y=x-2$

Remember that

Everything to the left of the solid line is shaded

The inequality is

$y\geq x-2$

step 2

Find the equation of the second inequality

Find the equation of the second dashed line

we have the ordered pairs

(0,2) and (4,0)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{0-2}{4-0}$

$m=\frac{-2}{4}$

$m=-\frac{1}{2}$

The equation in slope intercept form is equal to

$y=mx+b$

we have

$m=-\frac{1}{2}$

$b=2$ ---> the y-intercept is given

substitute

$y=-\frac{1}{2}x+2$

Remember that

Everything below and to the left of the line is shaded

The inequality is

$y$

Rewrite

Multiply by 2 both sides

$2y$

$x+2y$

therefore

The system of inequalities is

$y\geq x-2$

$x+2y$

see the attached figure to better understand the problem

5 0

3 years ago

Read 2 more answers

May someone help, please ? Thank you ♥️

koban [17]

My final answer is (C) because for the side lenghts to be a right triangle, the values of the first and second terms should be equal to the third (a^2 and b^2 =c^2) hope that helped (:

3 0

3 years ago

Find the slope of two points: (-2,-1) and (4,3)

marta [7]

Answer: m = 2/3

$\frac{-1-3}{-2-4}$ = $\frac{-4}{-6}$ = $\frac{2}{3}$

6 0

3 years ago