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Verdich [7]
3 years ago
14

Multiply: (9x − 5)(2x2 + 12x − 3)

Mathematics
2 answers:
schepotkina [342]3 years ago
6 0
I agree with the person on top the answer will be A
Shtirlitz [24]3 years ago
3 0

Answer:

A) is your answer

Step-by-step explanation:

Multiply the 2x by 9x

then you take the second variable in the second equation and mulitply it by 9x. giving you 98 x squared

THEN you take 9x times Negative 3 and get -87

AND NEGATIVE 5 TIMES NEGATIVE 3 IS

POSTIVE   15

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The square pyramid has a base area of 144 square centimeters and a height of 12 centimeters. Find the volume.
MrMuchimi

Step-by-step explanation:

the answer is 576 cubic centimetre.

5 0
2 years ago
Read 2 more answers
If sine ⁡theta equals negative 8/17 and the terminal side of theta lies in quadrant IV, find cosine ⁡ theta .
Lelechka [254]
\sin^2\theta+\cos^2\theta=1\implies \cos\theta=\pm\sqrt{1-\sin^2\theta}

Since \sin\theta=-\dfrac8{17}, it follows that

\cos\theta=\pm\sqrt{1-\dfrac{64}{289}}=\pm\sqrt{\dfrac{225}{289}}=\pm\dfrac{15}{17}

where the sign depends on the location of the terminal side of the angle. Since the terminal side lies in the fourth quadrant, that means the cosine of the angle is positive, so

\cos\theta=\dfrac{15}{17}
3 0
3 years ago
2x [(12 x 2) - 5 + 34] help
seraphim [82]

2x((12x2)-5+34)

2x(24-5+34)

(48x-10x+68x)

Distributive property?

116x?

8 0
3 years ago
Two numbers are the ratio of 2:7. their sum is 63. what is the larger number?
MariettaO [177]

Answer:

49

Step-by-step explanation:

step 1: Add the ratios 2:7 which is 2+7=9

step 2: divide the bigger ratio (7) by the total calculated in step 1 (9) and multiply by the total number given (63)....

step 3: we have 7/9×63 which is 49

therefore the bigger number is 49

8 0
2 years ago
Read 2 more answers
What’s the answer to
Roman55 [17]

Hint: the sum of the angles is equal to 180 in a triangle. could you make an equation to use that?

3x+13, 7x+2, and 75 are the three angle values. They will sum up to 180.

Steps:

We set the equation to:

3x+13+7x+2+75=180

We can combine some terms

10x+90=180

Then, we isolate x

10x=90

And we divide by 10

x=9

Great! but we are not done yet. We want the measure of angle A, so we need to plug x back into the equation for angle a

3(9)+13

Multiply

27+13

Add

40

8 0
2 years ago
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