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3 years ago

PLEASE HELP ME !!!!!

Mathematics

1 answer:

Nuetrik [128]3 years ago

4 0

I would say A. I hope I am right. I dunno if it would be A. or C. But I think A would be the better pick.

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Find the missing side

lisabon 2012 [21]

Answer: 1) The missing length is 40. 2) The missing side is 30 .

Step-by-step explanation:

1) 9^2 + b^2 = 41^2

81 + b^2 = 1681

-81 -81

b^2 = 1600

b= 40

2) 24^2 + 18^2 = c^2

576 + 324 = c^2

900 =c^2

c= 30

5 0

3 years ago

AC = BC, CP = CQ and <BPQ = 20°<br><ACP = ?°

Roman55 [17]

Answer: See attached image

Step-by-step explanation:

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2 years ago

Using complete square to slove for x in the equation (x+7) (x-9)=25

Brrunno [24]

Answer:

$x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}$

Step-by-step explanation:

Apply Distributive property:

$(x+7)(x-9)=25\\\\x^2-9x+7x-63=25$

Add like terms and then add 63 to both sides of the equation:

$x^2-2x-63=25\\\\x^2-2x-63+63=25+63\\\\x^2-2x=88$

Pick the coefficient of the x term, divide it by 2 and square it:

$(\frac{2}{2})^2=1$

Add it to both sides of the equation:

$x^2-2x+1=88+1$

Rewriting the left side as a squared binomial, we get:

$(x-1)^2=89$

Apply square root to both sides:

$\sqrt{(x-1)^2}=\±\sqrt{89}\\\\x-1=\±\sqrt{89}$

And finally we need to add 1 to both sides of the equation. Then we get:

$x-1+1=\±\sqrt{89}+1\\\\x=\±\sqrt{89}+1\\\\\\x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}$

8 0

3 years ago

What is 7% of 300 pounds

olga55 [171]

Answer:

Step-by-step explanation:

Of means multiply

7% * 300

Change to decimal form

.07 * 300

4 0

3 years ago

3x<img src="https://tex.z-dn.net/?f=3x%5E%7B2%7D%20%3D27" id="TexFormula1" title="3x^{2} =27" alt="3x^{2} =27" align="absmiddle"

Kitty [74]

Answer:

3x3^2=27 but 3 x 9=27

what are you asking???

8 0

3 years ago

Read 2 more answers