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2 years ago

A large square carpet is initially x inches long and x inches wide.

Mathematics

1 answer:

ddd [48]2 years ago

5 0

(x - 10) × 2
You have to multiply it by 2 so that you get the area

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Which of the following expressions are equivalent to 3(2x – 8)? Select all that apply.

Zina [86]

Answer:

Step-by-step explanation:

3(2x – 8)

3(2x) + 3(-8)

6x + -24

6x - 24

Hope this helps!

8 0

2 years ago

Select the equivalent expression

Troyanec [42]

To my calculations i think it’s c

6 0

2 years ago

You plan to purchase a bike costing $795. write an equation that could be used to find the amount m, that you must save per mont

Galina-37 [17]

Let
m-------> the amount that you must save per month

we know that
total cost of a bike=$795
5*m=795----------> equation that could be used to find the amount m
divide by 5 both sides
m=795/5
m=$159

the answer is
the equation that could be used to find the amount m is
5m=795

6 0

2 years ago

What does a proportion look like?

AURORKA [14]

A proportion looks like this:

$a\div b = c\div d$

It means that the quantity a,b,c and d are in the same proportion: the ratio between a and b is the same ratio between c and d.

They are particularly useful in situation when you have an example given, and you want to extrapolate the relationship for another couple.

For example, you can think of the following problem: "Five apples cost 2 dollars. How much will 8 apples cost?"

You can build the proportion

$5\div 2 = 8\div x$

And then solve it for x:

$\dfrac{5}{2}=\dfrac{8}{x} \iff 5x=16 \iff x = \dfrac{16}{5} = 3.2$

6 0

2 years ago

Rewrite the function f(x)=-4(x-3)^2+16 in the form f(x)=ax^2+bx+c

elena55 [62]

Answer:

f(x) = - 4x² + 24x - 20

Step-by-step explanation:

Given

f(x) = - 4(x - 3)² + 16 ← expand the factor using FOIL

= - 4(x² - 6x + 9) + 16 ← distribute parenthesis by - 4

= - 4x² + 24x - 36 + 16 ← collect like terms

= - 4x² + 24x - 20

4 0

2 years ago