3 years ago

Please help with question 7 and 8 also 9

Mathematics

1 answer:

noname [10]3 years ago

5 0

I think it would be B but I’m not sure for number 7

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On Monday there are 25 pencils in a basket, If 3 pencils are taken out of the basket each day, how many pencils are left in the

lutik1710 [3]

13 cuz add 4 days then friday so 4×3 which is 12 and 12-25 so ye its 13

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2 years ago

Select all quantities that are proportional to the diagonal length of a square.

horsena [70]

Answer:

B. Perimeter of a square and

C. Side length of a square

Step-by-step explanation:

if n= side length of square then

Area of square is $n^{2}$
Perimeter of a square is 4×n
diagonal length of a square is $\sqrt{2}$ × n

Thus,

Perimeter of square can be expressed as

$2\sqrt{2}$ ×diagonal length of a square

Side length of a square can be expressed as

$\frac{1}{\sqrt{2} }$ ×diagonal length of a square

but Area of square is

$\frac{1}{\sqrt{2} }$ ×n×diagonal length of a square

As a Result, Area of square is <em>also dependent of the value n</em>, wheras in other cases it is <em>a proportion of diagonal length of a square</em>

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3 years ago

I’ll give the Brainliest to who answers this question with a reasonable explanation.

Lyrx [107]

$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies

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3 years ago

pleasee helpp honestly im stuck i dont know how to graph this equation. it says to graph the funcion c(x)=3x-1

ohaa [14]

first take the 3 and place it over the negative one in quadrant 2

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3 years ago

Read 2 more answers

7.13 In the original study of regression toward the mean, Sir Francis Galton noted a tendency for offspring of both tall and sho

Lena [83]

Answer: All heights could be the same based on probability

Step-by-step explanation:

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3 years ago