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2 years ago

Use distributive property to find the product of (m+3)(m+7)

Mathematics

2 answers:

tensa zangetsu [6.8K]2 years ago

4 0

m*m+m*7+3*m+3*7
Answer= m^2+10m+21

Elan Coil [88]2 years ago

4 0

Answer:

m² + 10m + 21

Step-by-step explanation:

(m + 3)(m + 7)

m(m + 7) + 3(m + 7)

m² + 7m + 3m + 21

m² + 10m + 21

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IP8.4 #3b

bazaltina [42]

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Step-by-step explanation:

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2 years ago

What is the solution to he equation (y/y-4)-(4/y+4)=3^2/y^2-16

kicyunya [14]

Answer:

$y=\pm i \sqrt{7}$

Step-by-step explanation:

Given equation is $\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

Factor denominators then solve by making denominators equal

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$\frac{y\left(y+4\right)-4\left(y-4\right)}{\left(y-4\right)\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$y\left(y+4\right)-4\left(y-4\right)=9$

$y^2+4y-4y+16=9$

$y^2=9-16$

$y^2=-7$

take squar root of both sides

$y=\pm \sqrt{-7}$

$y=\pm i \sqrt{7}$

Hence final answer is $y=\pm i \sqrt{7}$ .

7 0

3 years ago

Given angle BEJ~RUW, what is RU?

harina [27]

RU is 34. To find the answer you can use a proportion. In this problem the proportion would be 60/51 = 40/x. You can then cross multiply giving you 51*40=60x. You can then solve for x which is your answer.

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3 years ago

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Thepotemich [5.8K]

Answer:

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Step-by-step explanation:

Given

4(- 15 - 3p) - 4(- p + 5) ← distribute both parenthesis

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3 years ago

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katrin2010 [14]

The answers are: D and C and A and E
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E (-15x2 + 9x - 10) + (3x2 - 10x - 5)=−12x^2−x−15

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3 years ago

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