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3 years ago

Evaluate the function. f(x)= -2x^2 + 8x - 10

Mathematics

2 answers:

Lilit [14]3 years ago

8 0

F(x)=-2(x-2)(by the power of 2)-2

Keith_Richards [23]3 years ago

4 0

Answer:

i think its f(x)=-2(x-2)(by the power of 2)-2

Step-by-step explanation:

You might be interested in

PLZ HELP!!!!!! angle A and angle C are right triangles. angle < p =__ degrees

vredina [299]

Answer:

p=59.19°

Step-by-step explanation:

We first find the length BD

BD=√(6²+5²)=√61

Using Pythagorean theorem,we find p by:

cos(p°)=4/√61

p=cos^-1(4/√61)

p=59.19°

4 0

3 years ago

There are 5280 feet in a mile. how many feet are in 7/11 of a mile

pychu [463]

Number of feet in a mile multiplied by the percentage (7/11) equals number of feet in the 7/11 portion of a mile.

=5280 * 7/11
=(5280*7)/11
=36,960/11
=3,360 feet in 7/11 mile

Hope this helps! :)

6 0

3 years ago

7. Which of the following can be determined from the graph below?

tatyana61 [14]

Answer:

The ordered pair (6,25) is a solution to both

$y=-\frac{5}{2}x+40$ and $y=\frac{5}{3}x+15$

Step-by-step explanation:

Part 7)

step 1

Find the equation of the line with positive slope

take the points (0,15) and (9,30)

Find the slope

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

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

substitute the given values

$m=\frac{30-15}{9-0}$

$m=\frac{15}{9}$

simplify

$m=\frac{5}{3}$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=\frac{5}{3}$

$b=15$

substitute

$y=\frac{5}{3}x+15$

step 2

Find the equation of the line with negative slope

take the points (0,40) and (8,20)

Find the slope

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

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

substitute the given values

$m=\frac{20-40}{8-0}$

$m=-\frac{20}{8}$

simplify

$m=-\frac{5}{2}$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=-\frac{5}{2}$

$b=40$

substitute

$y=-\frac{5}{2}x+40$

step 3

Find the solution of the system

we know that

The solution of the system of equations is the intersection point both graphs

The intersection point is (6,25) ----> see the graph

therefore

The ordered pair (6,25) is a solution to both $y=-\frac{5}{2}x+40$ and

$y=\frac{5}{3}x+15$

7 0

3 years ago

Need help on all 3 if u can

vovikov84 [41]

Answer: 1. 2262

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A recipe calls for 212 cups of flour to make 2 dozen cookies. How many cups of flour would be required to bake 15 dozen cookies.

NikAS [45]

Answer:

18 3/4 cups are required to bake 15 dozen of cookies.

Step-by-step explanation:

x = 75/4

x = 18 3/4 cups

18 3/4 cups are required to bake 15 dozen of cookies.

4 0

3 years ago