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3 years ago

What is Evaluate 3(4 - 2)2

Mathematics

1 answer:

earnstyle [38]3 years ago

5 0

Answer should be 12 3 times 4-2 is 6 times 2 is 12

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Using the converse of Pythagorean Theorem and the law of sines and cosines solve the word problem.

Helga [31]

Answer:

It's the law of cosines

Step-by-step explanation:

law of cosines states that $c^{2} =a^{2} +b^{2} -2ab (cos(\alpha ))$

so we know that a = 7, b = 4, and alpha would be 135 degrees, so just plugging it in gets us 49+16-2*7*4*(-0.707) = 65 + 39.59 = 104.59

7 0

3 years ago

2/8 + 6/12 what is that eqaul to

Papessa [141]

$\frac{2}{8} + \frac{6}{12} \\ \\ \frac{1}{4} + \frac{1}{2} \\ \\ LCD = 4 \\ \\ \frac{1}{4} + \frac{2}{4} \\ \\ \frac{1+2}{4} \\ \\ \frac{3}{4} \\ \\ Answer: \fbox {3/4} \ or \ \fbox {0.75}$

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3 years ago

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What is the length of the unknown side of the right triangle? (1 point)

scoundrel [369]

Answer:

The answer is a

Step-by-step explanation:

4 0

3 years ago

Plis help with this problem! (Screenshot attached)

Diano4ka-milaya [45]

Answer: The total surface area is 633.9

Step-by-step explanation:

12.25 times 15.75, then divide by 2 = 96.46875 (this is the area of the triangle

Then times 4 = 385.875 (Because there are four triangles

15.75 times 15.75 = 248.0625 (The area of the square)

The sum is 633.9375

Rounded = 633.9

3 0

2 years ago

Read 2 more answers

What is the rationalizing factor of √3?

Vanyuwa [196]

Answer:

$± \sqrt{3} \: \: ( \sqrt{3} \: \: or \: \: - \sqrt{3} )$

Step-by-step explanation:

$\sqrt{3} \times \sqrt{3} = 3 \: \: (rationalize)$

$\sqrt{3} \times ( - \sqrt{3} ) = - 3$

The rationalizing factor of $\sqrt{ 3}$

is $\boxed{\green{\sqrt{3} \: \: or \: \: - \sqrt{3}}}$

5 0

3 years ago