3 years ago

HURRY PLEASE I NEED IT ASAP 15 POINTSS!!!!

Mathematics

2 answers:

Veseljchak [2.6K]3 years ago

8 0

Answer:

Please the answer is not inside

Because it can't be D

expeople1 [14]3 years ago

3 0

D shows equivalent expressions

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In a recipe for cookies the ratio of flour to sugar is 3:1 what ratios are equivalent

anyanavicka [17]

Answer:

the ratio is 3 cups of flour to 1 cup of sugar or a 3:1 ratio

Step-by-step explanation:

4 0

3 years ago

If f(x)=x^3-x, what is the average rate of change of f(x) over the interval [1,5]?

RSB [31]

Answer:

Step-by-step explanation:

Average rate of change=Δf(x)/Δx = [f(x2)-f(x1]/[x2-x1]

Δf(x)/Δx = [f(5)-f(1]/[5-1]

f(5)=5³-5=120

f(1)=1³-1=0

Δf(x)/Δx = [120-0]/[5-1]=120/4=30

4 0

3 years ago

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number? x = –1 and x =

andrey2020 [161]

we have

$f(x)=x^{2}-2x-3$

Find the roots

Equate the function to zero

$x^{2}-2x-3=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2}-2x=3$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$x^{2}-2x+1=3+1$

$x^{2}-2x+1=4$

Rewrite as perfect squares

$(x-1)^{2}=4$

Square root both sides

$(x-1)=(+/-)2$

$x=1(+/-)2$

$x=1+2=3$

$x=1-2=-1$

therefore

<u>the answer is</u>

$x=3$

5 0

3 years ago

Read 2 more answers

(7th grade work) How many gallons of water were in the bucket after 1 second? Explain your thinking.

Veseljchak [2.6K]

Answer:0.5, half a gallon

Step-by-step explanation:

6 0

3 years ago

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The area of a trapezium shaped field is 480m^2,the distance between two parallel

meriva

Answer:

Area of trapezium = 1/2 * h (a+b)

here, 480= 1/2 *15*(20+b)

(20+b)=960/15

or, b=64-20

therefore, b= 44

.....

Hope u got it...xd

3 0

3 years ago