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3 years ago

Help please!!! Question is in the picture

Mathematics

2 answers:

EastWind [94]3 years ago

8 0

I think it’s dababy

Nataly [62]3 years ago

6 0

I don’t really know where the Porche is

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(its part b to question 9 ) If there are 15 students who don't wear glasses how many students are there in class? PLZ HELP WILL

hichkok12 [17]

Answer:

there are 25 students in the class and 15 who wear glasses.

5 0

3 years ago

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If one side of a square notebook measures 20 cm, what is the area of the front cover of the notebook?

nexus9112 [7]

Answer:

400cm

Step-by-step explanation:

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3 years ago

GREYUIT [131]

Answer:

$175\ in^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z----> the scale factor

x----> volume of the larger solid

y----> volume of the smaller solid

$z^{3}=\frac{x}{y}$

we have

$x=125\ in^{3}$

$y=27\ in^{3}$

substitute

$z^{3}=\frac{125}{27}$

$z=\frac{5}{3}$

step 2

Find the surface area of the larger solid

we know that

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

Let

z----> the scale factor

x----> surface area of the larger solid

y----> surface area of the smaller solid

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

we have

$z=\frac{5}{3}$

$y=63\ in^{2}$

substitute

$(\frac{5}{3})^{2}=\frac{x}{63}$

$x=\frac{25}{9}*63=175\ in^{2}$

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3 years ago

Image below! PLEASE HELP! THIS IS DUE!

Minchanka [31]

Answer:

270 if not simplified and

1/1 if simlifies

Step-by-step explanation:

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2 years ago

Solve for x.<br><br> x2 − 9x + 20 = 0

umka2103 [35]

x has two values 4 and 5 by factorization or using the general formula

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3 years ago

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Help please!!! Question is in the picture​

Help please!!! Question is in the picture