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4 years ago

I know its summer and everyone done with school but someone help

Mathematics

2 answers:

sweet-ann [11.9K]4 years ago

8 0

Answer:

1.25

Step-by-step explanation:

Gemiola [76]4 years ago

7 0

Answer:

1.55

Step-by-step explanation:

3750+900 = 4650

4650/3000 = 1.55

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What is the parallel slope of m= -2

Anna35 [415]

You mean what is the slope of a line parallel to the line whose slope is -2?

The answer is -2... the slopes of parallel lines are equal

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3 years ago

5c+3-2c-4<br> Simply the expression

dybincka [34]

5c+3-2c-4

+2c +2c

---------------

7c+3-4

----------------

7c-1

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3 years ago

Help with 21 would be much appreciated.

umka2103 [35]

Answer:

$\large\boxed{x=2\sqrt{21}\ and\ y=4\sqrt3}$

Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{CD}{DB}$

We have

$AD=14-8=6\\CD=y\\DB=8$

Substitute:

$\dfrac{6}{y}=\dfrac{y}{8}$ <em>cross multiply</em>

$y^2=(6)(8)$

$y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\ cdot\sqrt3\\\\\boxed{y=4\sqrt3}$

For x use the Pythagorean theorem:

$x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}$

3 0

3 years ago

Is this expression equivalent?<br> 3v+v and 12v over 3

xeze [42]

Yes this is equal because 3v+v is 4v and if you divide 12v by 3 you also get 4v

7 0

4 years ago

Read 2 more answers

John shot 30 baskets in 5 minutes. At this rate how many minutes will it take him to shoot 90 baskets? What are the 2 units you

kodGreya [7K]

Ans5 and 2

Step-by-step explanation:

4 0

3 years ago

I know its summer and everyone done with school but someone help ​

I know its summer and everyone done with school but someone help