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TEA [102]
3 years ago
11

Please help with this question.. I also asked more questions on my page and those have more points and also ill give brainiest

Mathematics
2 answers:
DENIUS [597]3 years ago
6 0

14. 2z^2 - 4z + 2 =0

First factor out a 2

2(z^2 - 2z + 1) = 0

Now factor the z^2

2(z - 1)(z - 1)

z = 1 , 1 A

15. x^2 +6x = 0

factor out an x

x(x + 6) = 0

X = 0, -6 B

16.

6x^2 - 17x -14 = 0

Factor

(2x - 7)(3x +2) = 0(use the diamond method so solve this)

x = 7/2 , -2/3 D

17.

Simplify

15x^2 - 14x - 8 = 0 (use the diamond method to factor)

(3x -4)(5x + 2) = 0

x = 4/3, -2/5 B




Vilka [71]3 years ago
5 0
I think it’s a good game
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amm1812

Answer:

<h2>          \bold{a_n=-7n+39}</h2>

Step-by-step explanation:

25 - 32 = -7  and 18 - 25 = -7

It means an arithmetic sequence with common difference d = -7

a_n = a_1+d(n-1)\\\\a_1=32\\d=-7\\\\a_n=32+(-7)(n-1)\\\\a_n = 32-7n+7\\\\\underline{a_n=-7n+39}

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3 years ago
A closed box has a square base with side length feet and height feet given that the volume of the box is 34 ft.³ express the sur
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Answer:

\dfrac{2s^3+136}{s}

Step-by-step explanation:

Let the side length of the square base =s feet

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Volume of the box =s^2h

Then:

s^2h=34$ ft^3\\$Divide both sides by s^2\\h=\dfrac{34}{s^2}

Surface Area of a Rectangular Prism =2(lb+bh+lh)

Since we have a square base, l=b=s feet

Therefore:

Surface Area of our closed box= 2(s^2+sh+sh)

S$urface Area= 2s^2+4sh\\Recall: h=\dfrac{34}{s^2}\\$Surface Area= 2s^2+4s\left(\dfrac{34}{s^2}\right)\\=2s^2+\dfrac{136}{s}\\$Surface Area in terms of length only=\dfrac{2s^3+136}{s}

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2 years ago
PLS HELP GIVING BRAINLIEST PLS PLS PLSSS
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Answer:

n°

Step-by-step explanation:

Your selection is correct. Once again, they are alternate angles, meaning they're equal to one another.

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\frac{3}{10}

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Step-by-step explanation:

I just pressed 27/90 on the calculator hahahha

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The correct answer is D.
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