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aleksklad [387]
3 years ago
7

Plzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics
1 answer:
lesantik [10]3 years ago
6 0

Answer:

10x^2-11x-6

Step-by-step explanation:

To expand, we use the FOIL method. You do this by multiplying each number inside the parenthesis by the other numbers in the other set of the parenthesis. For example, on this problem, you would multiply 5x by 2x, and then 5x by -3.

Step by step, you would:

5x * 2x = 10x^2

5x * -3 = -15x

2 * 2x = 4x

2 * -3 = -6

In an equation, it would expand to 10x^2-15x+4x-6

To simplify, you add like terms (constants and those with the same variable). In this case, you would add together all the terms ending in x.

-15x+4x=-11x

Now, you have added like terms together, so your simplified answer is 10x^2-11x-6.

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help with this !!!!!!!!!!!!!!!!!!!!
Gnom [1K]

Answer:

Using Pythagorean theory : a²+9²=15²

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Step-by-step explanation:

8 0
3 years ago
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Zarrin [17]

Answer:

A. 55°

Step-by-step explanation:

Complementary angles are angles that add up to give us 90°.

Since <A and <B are complementary angles, it implies that:

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Subtract 35° from each side

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2 years ago
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Wich equation shows y + 1/5 = 3x in standard form
Katen [24]

15x - 5y = 1 it's B in standard form



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Radda [10]
You have to take 60 degrees and add it to 90 degrees because that’s how much the box in the corner is worth


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