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3 years ago

Factor of polynomial

Mathematics

1 answer:

Rzqust [24]3 years ago

4 0

(x-7)(x-4)

I hope this helps!

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Can y'all help me I need real help with this

maw [93]

Answer:

its be 17.32050807... or 10 $\sqrt{3}$

5 0

3 years ago

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Solve these equations using elimination not substitution? 8x + 3y = 13 3x + 2y = 11 15 Points!

tia_tia [17]

Answer:

x = -1, y = 7

Step-by-step explanation:

8x + 3y = 13

3x + 2y = 11

Multiply the first equation by -2 and the second equation by 3. Then add them.

-16x - 6y = -26

(+) 9x + 6y = 33

--------------------------

-7x = 7

x = -1

Now substitute x = -1 in the first original equation and solve for y.

8x + 3y = 13

8(-1) + 3y = 13

-8 + 3y = 13

3y = 21

y = 7

Answer: x = -1, y = 7

8 0

3 years ago

How to solve this problem?

valentinak56 [21]

Very nice handwriting but the math and English are confusing.

Let's assume we're told

$\displaystyle 45 = \sum_{i=1}^9 (x_i - 10)^2$

The subscript is important.

I think we're told the similar sum with 11 gives the smallest possible value for the sum. This is a rather cagey way of telling us 11 is the mean of the nine points. The mean is the number which minimizes the sum of squared deviations.

$\displaystyle 45 = \sum_{i=1}^9 (x_i - 10)^2 = \sum x_i^2 - 20 \sum x_i + 9(100)$

$\displaystyle \sum x_i^2= 20 \sum x_i - 900$

If 11 is the mean, the sum of the points is 9(11)=99.

$\displaystyle \sum x_i^2= 20 (99) - 900 = 1080$

Answer: 1080

6 0

3 years ago

Someone please help!!!!!

Nadya [2.5K]

Answer:

144 people were originally at the party.

Step-by-step explanation:

18 boys is one fifth of the second boys population, so the second population is 18x9 = 162. The original population would be 162-18, which equals 144.

6 0

4 years ago

Solve the problem. Round to the nearest cent.

Alex17521 [72]

1986*1.04^(23) = 4894.93

4894.93-1986 = 2908.93

Answer is A

7 0

3 years ago

Read 2 more answers