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3 years ago

Help, Ill give extra points too!

Mathematics

1 answer:

xeze [42]3 years ago

7 0

Answer:

(-6,-18) & (2,6) -----------> 3

(12,6) & (-4,-2) -----------> $\frac{1}{2}$

(5,-19) & (6,-23) ----------> -4

(3,4) & (3,9) ---------------> unidentified

(1,-10) & (2,-15) -----------> -5

(-1,8) & (3,8) ---------------> 0

(0,0) & (21,14) -------------> $\frac{2}{3}$

Step-by-step explanation:

Use this formula to find all of these slopes.

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

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Find the diamter of a circle if its area is 706.9mm²

Masteriza [31]

Answer:

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have

$A=706.9\ mm^2$

Substitute:

$\pi r^2=706.9$ divide both sides by π

$r^2=\dfrac{706.9}{\pi}$ use π ≈ 3.14

$r^2\approx\dfrac{706.9}{3.14}\\\\r^2\approx225\to r=\sqrt{225}\\\\r= 15\ mm$

The diameter d = 2r.

Therefore

$d=2(15)=30\ mm$

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3 years ago

What is the slope and y intercept y+4= -4/7(x-5)

galben [10]

Answer:

The slope is -4/7 and the y-intercept is -8/7.

Step-by-step explanation:

y+4=-4/7(x-5)

7y+28=-4(x-5)

7y+28=-4x+20

7y=-4x-8

y=-4/7x-8/7

8 0

3 years ago

Find the quotient of 13 ÷ 43.

Troyanec [42]

0.30 or if u flip it around it would be 43/13=3.30

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3 years ago

How do you simplify -1.5(-3.6 + 2 )

Gelneren [198K]

Answer:

Use PEMDAS

Step-by-step explanation:

According to the rules of PEMDAS, you would first add the terms in the parentheses, giving you -1.6. You would then multiply that by -1.5 to give you the answer of 2.4

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3 years ago

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Virty [35]

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