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ollegr [7]
3 years ago
8

Please some help me fast

Mathematics
1 answer:
alisha [4.7K]3 years ago
8 0

Answer:

A

Step-by-step explanation:

To find the best equation, we simply substitute the values of a, b, and c into the given equations.

a = 21

b = 5

c = 36

a=\dfrac{7}{10}b\sqrt{c}

21=\dfrac{7}{10}5\sqrt{36}

21=\dfrac{7}{10}5(6)

21=\dfrac{7}{10}30

21=(0.7)30

21=21

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What is the equation of the line that passes through the point (-5,2) and has a slope of 4/5
dedylja [7]

Answer:

4x - 5y + 30 = 0

Step-by-step explanation:

When a slope of a line and a point passing through it is given then we use slope - one point form to determine the equation of the line.

It is given by:

                      $ (y - y_1) = m (x - x_1) $

where $m$ is the slope of the line and

           $ (x_1, y_1) $ is the point passing through it.

Here $m = \frac{4}{5} $ and $ (x_1 , y_1) = (-5,2) $.

Substituting in the equation we get

$ (y - 2) = \frac{4}{5} (x + 5) $

$ \implies 5y - 10 = 4x + 20 $

$ \implies 4x - 5y + 30 = 0 $

5 0
3 years ago
What’s the slope of the line??
emmainna [20.7K]
If I did the math correctly I’d should be -5 or rewritten as -5/1.
8 0
3 years ago
Find the unit rate 6 and 2/5 revolutions in 2 and 2/3 in seconds
Makovka662 [10]

<u>Step 1</u>

Convert mixed fractions into fractions

6 2/5 = (6*5)+2) / 5 = 32/5

2 2/3 = (2*3)+2) / 3 = 8/3

<u>Step 2</u>

32/5 ÷ 8 / 3 ; where 32/5 is the 1st fraction and 8/3 is the 2nd fraction

<u>Step 2 (A)</u>

Get the reciprocal of the 2nd fraction:

From 8/3 to 3/8

<u>Step 2 (B)</u>

Multiply 1st fraction to the reciprocal of the 2nd fraction

32/5 * 3/8 = (32*3) / (5*8) = 96/40

<u>Step 2 (C)</u>

Simplify the fraction

96/40 divide by 4 will become 24/10

24/10 divide 2 will become 12/5. The simplest fraction of 96/40

The unit rate is 12/5 = 2 2/5 revolutions per second

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3 years ago
Can someone sub to my youttube channel pls, its called Yakobu, it would really help out :)
mestny [16]

Answer:

yea i will what do u do ther???

Step-by-step explanation:

ohhhh gamer

6 0
3 years ago
Witch is greater -4 or 8/2
OLga [1]

8/2 is the greater one.


6 0
3 years ago
Read 2 more answers
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