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3 years ago

PLEASE ANSWER QUICKLY!! I NEED THIS ANSWER ASAP

Mathematics

1 answer:

Nana76 [90]3 years ago

8 0

Answer:

you can use a website called wolfram alpha to help with any math equation

Step-by-step explanation:

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The veloctiy of sound in air is given by the equation v=25 times the square root of 365+t where v is the velocity in meters per

Fed [463]

Answer:

Step-by-step explanation:

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3 years ago

In the adjoining figure, area of trangle ABC is

Zepler [3.9K]

Answer:

$PQ=4\ cm$

Step-by-step explanation:

see the attached figure with the letter D to better understand the problem

we know that

The segment side AD is the height of triangle ABC

Triangles PBQ and ABD are similar by AA Similarity Theorem

The area of triangle ABC is equal to

$A=\frac{1}{2}(BC)(AD)$

we have

$A=48\ cm^2\\BC=12\ cm$

substitute

$48=\frac{1}{2}(12)(AD)$

$AD=8\ cm$

Remember that

If two triangles are similar then the ratio of its corresponding sides is proportional

$\frac{BP}{AB}=\frac{PQ}{AD}$

substitute the given values

$\frac{BP}{2BP}=\frac{PQ}{8}$

$\frac{1}{2}=\frac{PQ}{8}$

$PQ=4\ cm$

3 0

3 years ago

4(3r+2)+3r=-10? help please *confused*

lakkis [162]

$4(3r+2)+3r=-10\\
12r+8+3r=-10\\
15r=-18\\
r=-\frac{18}{15}=-\frac{6}{5}$

3 0

3 years ago

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Square root 7x+16 +4=x

gavmur [86]

1 Simplify 7x+16+47x+16+4 to 7x+207x+20 7x+20=x7x+20=x
2 Subtract 7x from both sides 20=x-7x20=x−7x
3 Simplify x-7xx−7x to -6x−6x
20=-6x20=−6x
4 Divide both sides by −6 -20/6=x
5 Simplify 20/6 to 10/3 -10/3=x
6 Switch sides
x=-10/3

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3 years ago

HELPPP WHAT IS THE MEASURE OF ANGLE 1

Yanka [14]

Answer:

Step-by-step explanation:

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3 years ago

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