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3 years ago

Help me please,,,,,,,,,,,,,,,,

Mathematics

1 answer:

hichkok12 [17]3 years ago

4 0

Answer:

ill help you what do you need help on tho???

Step-by-step explanation:

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Solve for x does anyone know how to do this?

riadik2000 [5.3K]

Answer:

x = 9

Step-by-step explanation:

The sum of the 4 angles in a quadrilateral = 360°

Sum the given angles and equate to 360

90 + 109 + 9x - 5 + 85 = 360, that is

9x + 279 = 360 ( subtract 279 from both sides )

9x = 81 ( divide both sides by 9 )

x = 9

6 0

3 years ago

Urgent! Will award brainliest...<br> Factor the following polynomial:<br> <img src="https://tex.z-dn.net/?f=3a%5E%7B2%7D-21a%2B3

umka2103 [35]

Answer:

$3 (a-2) (a-5)$

Step-by-step explanation:

The first step is to find the GCF. Here, it's 3.

$3(a^2-7a+10)$

Then, you factor the polynomial in the parenthesis.

To find the factors, you will need to find 2 numbers that add to -7, and multiply to 10. -2 and -5 add to -7 and multiply to 10. Now, replace -7a with the factors.

$a^2-2a-5a+10$

This of this polynomial as 2 problems.

$a^2-2a$ $-5a+10$

Then, factor again.

$a^2-2a$ $-5a+10$

$a(a-2)$ $-5(a-5)$

Then, you keep the factors in parenthesis, and combine the numbers on the outside.

$(a-2)(a-5)(a-5)$

Since, there are 2 of the same factor, you only need one.

$(a-2)(a-5)$

BUT REMEMBER!! In the very beginning, we had a 3 that we took out, we STILL need to add that to the final answer. The <u>final answer</u> is:

$3 (a-2) (a-5)$

7 0

3 years ago

Find the unknown length of x

nlexa [21]

25 is the length of x, using the 30-60-90 special triangle method

8 0

3 years ago

Evaluate if a = 28 and b = -3

Nata [24]

Answer:

The answer is 4

Step-by-step explanation:

hope this helps

8 0

3 years ago

Read 2 more answers

325 meters in 28 seconds

ikadub [295]

325 meters in 28 seconds is 11.6 meters per second hope this helps.

5 0

3 years ago