3 years ago

BRAINLIESTTTTTT PLZZ

Mathematics

1 answer:

stiks02 [169]3 years ago

4 0

Answer:

4n + n + 6 + 4n + n + 6

10n + 12

he ought to have added the Ns

cc: He is supposed to add the coefficients of N

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Heather has a coin that has a 60\%60%60, percent chance of showing heads each time it is flipped. She is going to flip the coin

Elza [17]

Answer:

(5/3) (0.60)^3(0.40)^2

Step-by-step explanation:

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3 years ago

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Use distributive property to write an equivalent expression. Use paper and pencil to

just olya [345]

Answer:

A) 6Gn + 12 (or 6n+12, if that’s what you meant)

B) 4p²+9p

C) 5r²+20r

Step-by-step explanation:

A. If you meant 6(n+2)...

Multiply 6 by n and also 6 by 2:

6n + 12

B. Multiply p by 4p and also p by 9

4p²+9p

C. Multiply 5r by r and also 5r by 4

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Hope this helped!

8 0

3 years ago

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timurjin [86]

Answer:

Step-by-step explanation:

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3 years ago

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8-2b=-2 (b=-3, b=0, b=5)

kykrilka [37]

B=5 because
8-2b=-2
-8 -8
-----------

-2b=-10
-----------
-2 -2

b=5

5(-2)=-10

4 0

3 years ago

Solve equation by completing the square round to the nearest hundredth if necessary <br> X2-4x-=5

kipiarov [429]

Answer:

x=-1 and x=5

Step-by-step explanation:

we have

$x^{2} -4x=5$

Solve it by completing the square method

We take the coefficient of x that is -4, divide it by 2 and then square it

$-\frac{4}{2}=-2$

square it

$(-2)^2 = 4$

Adds 4 both sides

$x^{2} -4x+4=5+4$

Combine like terms right side

$x^{2} -4x+4=9$

Rewrite as perfect squares

$(x-2)^{2}=9$

take square root both sides

$x-2=\pm3$

$x=2\pm3$

therefore

$x=2+3=5$

$x=2-3=-1$

6 0

3 years ago