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2 years ago

PLEASE HELP 10 POINTS

Mathematics

1 answer:

SVETLANKA909090 [29]2 years ago

5 0

Answer:

flip the inequality sign when multiplying or dividing on a negative number

Step-by-step explanation:

Hope this helped :]

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Which number is a solution of the inequality? b > 11.3; 9 –14 15 4

marshall27 [118]

$b > 11.3\\\\9-NOT,\ because\ 9\ is\ not\ greater\ than\ 11.3\\-14-NOT,\ because\ -14\ is\ not\ greater\ than\ 11.3\\15-YES,\ because\ 15>11.3\\4-NOT,\ because\ 4\ is\ not\ greater\ than\ 11.3\\\\Answer:\ \boxed{15}$

6 0

3 years ago

A square has side length of 9 in. If the area is doubled, what happens to the side length?

Alika [10]

Answer:

The side length is multiplied by $\sqrt{2}$

Step-by-step explanation:

we know that

The area of the original square is equal to

$A=9^{2}=81\ in^{2}$

If the area is doubled

then

The area of the larger square is

$A1=(2)81=162\ in^{2}$

Remember that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the larger square

y ---> the area of the original square

$z^{2}=\frac{x}{y}$

we have

$x=162\ in\^{2}$

$y=81\ in\^{2}$

$z^{2}=\frac{162}{81}$

$z^{2}=2$

$z=\sqrt{2}$ ------> scale factor

therefore

The side length is multiplied by $\sqrt{2}$

7 0

3 years ago

What value of x can you substitute into each of these expressions to give you the same answer?

user100 [1]

Answer:

$x = 4$

$4 + 12 = 16 \\ 6 \times 4 - 8 = 16 \\ 4 \times 4 = 16$

4 0

3 years ago

Read 2 more answers

What comes after 5,10,20,40,80...

fgiga [73]

It is just doubled the number before so the next number would be 160, then it would be 360, 720, etc..

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3 years ago

a bicycle advertised all mountain bike priced at 1/3 discount what is the sales price if the original price is 327

AnnZ [28]

The discount sales price would be $218

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3 years ago