3 years ago

A rectangle has a length of 7 and a width of w. What is an expression for the perimeter?

Mathematics

1 answer:

Nastasia [14]3 years ago

5 0

(7x2)+(2x w). Times 2 because you need each side and the opposite sides are the same size.

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William can text 84 words in 6 minutes. At this rate, how many minutes would it take him to text 126 words?

kow [346]

Answer:

The time required to text 126 words is = 9 minutes

Step-by-step explanation:

Given data

William can text 84 words in 6 minutes

Time required for text one word = $\frac{6}{84}$ minute

Therefore the time required to text 126 words is given by

T = Time required for text one word × Total no. of words

T = $\frac{6}{84}$ × 126

T = 9 minutes

Therefore the time required to text 126 words is = 9 minutes

8 0

2 years ago

Choose the quadratic equation that has a leading coefficient of 8 and solutions -10 and 7/8

Maru [420]

Answer:

$f(x)=8x^2+73x-70$

Step-by-step explanation:

We are given

zeros as -10 and 7/8

now, we can set up function as

$f(x)=a(x-(-10))(x-\frac{7}{8})$

now, we are given that

leading coefficient is 8

so, a=8

now, we can plug it

$f(x)=8(x-(-10))(x-\frac{7}{8})$

now, we can simplify it

$f(x)=8\left(x^2+\frac{73x}{8}-\frac{35}{4}\right)$

so, we get

$f(x)=8x^2+73x-70$

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3 years ago

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nadya68 [22]

Answer:

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9/15 is your answer

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Step-by-step explanation:

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