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3 years ago

If the area of a square with side x is 9, what is the area of a square of side 4x

Mathematics

2 answers:

katen-ka-za [31]3 years ago

8 0

Answer:

144

Step by step explanation ;

Area of square is S×S

side X×X=9

X equals 3

4×3=12

12×12=144

LiRa [457]3 years ago

3 0

But I think the answer is 27 because 9 times 4 is 27

Hope that helped

Step-by-step explanation:

Its kind of like the this problem:

https://brainly.in/question/26666032?tbs_match=1

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The midpoint of -3 and 12

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Step-by-step explanation:

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3 years ago

If sin theta=-1/4 and theta terminates in the third quadrant, find the exact value of sin2 theta.

DIA [1.3K]

Answer:

$sin(2\theta)=\frac{\sqrt{15}}{8}$

Step-by-step explanation:

We are given

$sin(\theta)=-\frac{1}{4}$

Firstly, we can draw triangle

angle lies in third quadrant

so, we get

$cos(\theta)=-\frac{\sqrt{15} }{4}$

now, we can use formula

$sin(2\theta)=2sin(\theta)\times cos(\theta)$

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$sin(2\theta)=2\times -\frac{1}{4}\times -\frac{\sqrt{15} }{4}$

now, we can simplify it

and we get

$sin(2\theta)=\frac{\sqrt{15}}{8}$

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In Alaska, the temperature at noon was 18 degrees<br> below zero. is it positive/negative?

olasank [31]

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8 0

3 years ago

Please help me on this I need to show work too

Genrish500 [490]

Okay, so all you need to do is to find the missing angle.

First, remember that all the angles of a triangle equal 180°. So if you know two of the angles, all you have to do is add them, then subtract the sum from 180.

1. 78 + 37 = 115 180 - 115 = 65 Do the same thing for each triangle and your answers are.

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3 0

3 years ago