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Korvikt [17]
2 years ago
7

Which value of x from the set 4, 5, 6, 7}, makes this equation true?

Mathematics
1 answer:
Diano4ka-milaya [45]2 years ago
3 0

4(8-x)=8

8-x=8/4

8-x=2

-x= 2-8

-x= -6

x=6

-> c

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Can sum1 hurry and give me the answers to theses pls !!
suter [353]

Answer:

i dont understand what you want us to do lol?

Step-by-step explanation:

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2 years ago
Yuri thinks that 3/4 is a root of the following function. q(x) = 6x3 + 19x2 – 15x – 28 Explain to Yuri why 3/4 cannot be a root.
k0ka [10]

Answer:

Yuri is not correct.

Step-by-step explanation:

Given expression is q(x) = 6x³ + 19x² - 15x - 28

If 'a' is a root of the given function, then by substituting x = a in the expression, q(a) = 0

Similarly, for x = \frac{3}{4},

q(\frac{3}{4})=6(\frac{3}{4})^3+19(\frac{3}{4})^2-15(\frac{3}{4})-28

       = 6(\frac{27}{64})+19(\frac{9}{16})-15(\frac{3}{4})-28

       = (\frac{162}{64})+(\frac{171}{16})-(\frac{45}{4})-28

       = (\frac{162}{64})+(\frac{684}{64})-(\frac{720}{64})-\frac{1792}{64}

       = -\frac{1666}{64}

       = -\frac{833}{32} ≠ 0

Therefore, Yuri is not correct. x = \frac{3}{4} can not be a root of the given expression.

6 0
3 years ago
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8.2cm in millimeters
leonid [27]
The answer would be 82 millimeters!

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3 years ago
Simplify 9 to the 2nd over 9 to the 7th.
Free_Kalibri [48]

9^2/9^7

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9^(2-7)

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a negative exponent flips from the numerator to the denominator

1/ 9^5

Choice D

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Answer:

0

Step-by-step explanation:

When you multiply any number by 0, the answer is always 0.

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