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Aleks04 [339]
3 years ago
11

What is the value of x y 320 for x = 2, y = -4 and z = -2 ? 1 / 1 0 -1 O 1

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

1/2

Step-by-step explanation:

anything raised to the power of zero equals 1

2^5 · (-4)^-3 · (-2)^0

32 · 1/64 = 32/64 = 1/2

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Help me fill this out thanks
alukav5142 [94]

Answer:

This is an isosceles right triangle, then we have

2 x u^2 = [6sqrt(2)]^2

<=> 2 x u^2 = 72

<=> u^2 = 36

<=> u = 6

Hope this helps!

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8 0
4 years ago
Please Answer, giving Brainliest and 50 points to the best answer!
tresset_1 [31]

Answer:

10 and 40

Step-by-step explanation:

Find the prime factorization of 10

10 = 2 × 5

Find the prime factorization of 40

40 = 2 × 2 × 2 × 5

Multiply each factor the greater number of times it occurs to find the LCM:

LCM = 2 × 2 × 2 × 5

LCM=40

7 0
3 years ago
3x + 4y = 12<br> Convert to slope-intercept form
Zigmanuir [339]

Answer:

y=-3/4x+3

Step-by-step explanation:

subtract 3x from both sides:  4y=-3x+12

Divide both sides by 4:  y=-3/4y+3

4 0
3 years ago
Read 2 more answers
A CBS News/New York Times opinion poll asked 1,190 adults whether they would prefer balancing the federal budget over cutting ta
nikklg [1K]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sampling proportions of a proportion p in a sample of size n has mean \mu = p and standard error s = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

  • 1,190 adults were asked, hence n = 1190
  • In fact 62% of all adults favor balancing the budget over cutting taxes, hence p = 0.62.

The mean and the standard error are given by:

\mu = p = 0.62

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.62(0.38)}{1190}} = 0.0141

The probability of a sample proportion of 0.59 or less is the <u>p-value of Z when X = 0.59</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.59 - 0.62}{0.0141}

Z = -2.13

Z = -2.13 has a p-value of 0.0166.

0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

You can learn more about the <u>normal distribution and the central limit theorem</u> at brainly.com/question/24663213

7 0
2 years ago
Which of the following is equal to 408 = 12?
Viktor [21]
I think answer should be a. Please give me brainlest let me know if it’s correct or not okay thanks bye
5 0
3 years ago
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