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Oksana_A [137]
3 years ago
8

Multiply (x+7) (x-7)

Mathematics
2 answers:
Margaret [11]3 years ago
7 0
Foil the answer so it would be 2x-7x+7x-49 then you would combine like terms so the answer is 16x-49
Crank3 years ago
3 0
<span> (x+7) (x-7)
= x^2 - 49

using a^2 - b^2 = (A + b)(a - b)
hope it helps</span>
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Of the 220 tickets available for a school play,45% have been sold. What is the number of tickets that have sold?(pls help due ve
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My mind is pretty foggy on this but I know you have to set the up the equation like ?/220 = 45/100 and you have to multiply or divide something, I’m not really sure. I don’t remember anymore lol.
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2 years ago
Please help. Don’t understand
DerKrebs [107]

If the measure of the angle is 2π/3 the correct option will be tan∅=-√3.

<h3>What is trigonometry?</h3>

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle are termed trigonometry.

It is given in the question that:-

The measure of the angle is = \dfrac{2\pi}{3}

We can also write the angle as = \dfrac{2\times 180}{3}=120

Now from the options, the only value which satisfies this angle is tan∅=-√3.

 tan\dfrac{2\pi}{3}=tan \dfrac{2\times 180}{3}=tan(120)=-\sqrt{3}

To know more about Trigonometry follow

brainly.com/question/24349828

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7 0
2 years ago
some numbers can be expressed as the sum of a string of consecutive positive numbers which numbers have this property
NISA [10]
K, so, lets add them up
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etc

basically
all numbers 'x' such that
x=\frac{(n+1)(n+2)}{2} and n is the set of all natural numbers


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3 years ago
Order from least to greatest on the number line below.
adelina 88 [10]
35.9002 that’s the answer
8 0
3 years ago
Please help!
Natalka [10]
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3 years ago
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