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pentagon [3]
4 years ago
6

Plzz help! bralilest asap

Mathematics
2 answers:
Nonamiya [84]4 years ago
8 0

Answer:

C: a reflection across the y axis rotated 180 degrees

Step-by-step explanation:

The y axis is a vertical line, the same like that the trapezoid is flipped across

The trapezoid is rotated 180 degrees across the y axis

Feliz [49]4 years ago
4 0

plzz help! bralilest asap !!!

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60°<br> 4V3<br> Find the missing side
Vinvika [58]

Check the picture below.

7 0
4 years ago
Dino help me :))) pls
kipiarov [429]

Answer:

C.

Step-by-step explanation:

red: 3/8 sheet per toy

20 × 3/8 = 60/8 = 56/8 + 4/8 = 7 1/2

yellow: 5/8 sheet per toy

20 × 5/8 = 100/8 = 50/4 = 25/2 = 12 1/2

Since he needs 7 1/2 and 12 1/2, he needs to get 8 and 13 becasue 7 and 12 are not enough.

Answer: C.

4 0
2 years ago
Read 2 more answers
Can I plz solve number 11 Thx
ANTONII [103]

Answer:

Step-by-step explanation:

a. 19 x 100 = 1900:100

b. 19 x 280 = 5320: 280

c. 19 x 440 = 8360:440

d. 19 x 760 = 14440:760

7 0
3 years ago
Read 2 more answers
A manufacturer makes chocolate squares that have a target weight of 8 g. Quality control engineers sample 30 chocolate squares t
posledela

Using the <em>normal distribution and the central limit theorem</em>, it is found that the power of the test is of 0.9992 = 99.92%.

<h3>Normal Probability Distribution</h3>

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 sample means of size n has standard deviation s = \frac{\sigma}{\sqrt{n}}.

In this problem:

  • The mean is \mu = 8.5.
  • The standard deviation is \sigma = 0.87.
  • A sample of 30 is taken, hence n = 30, s = \frac{0.87}{\sqrt{30}} = 0.1588.

The power of the test is given by the probability of a sample mean above 8, which is <u>1 subtracted by the p-value of Z when X = 8</u>, so:

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

By the Central Limit Theorem:

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

Z = \frac{8 - 8.5}{0.1588}

Z = -3.15

Z = -3.15 has a p-value of 0.0008.

1 - 0.0008 = 0.9992.

The power of the test is of 0.9992 = 99.92%.

To learn more about the <em>normal distribution and the central limit theorem</em>, you can check brainly.com/question/24663213

5 0
3 years ago
1) Which expression is equal to
mel-nik [20]

Answer:

None of the expressions in the option is equal to 10 x(13).

Step-by-step explanation:

The answer can be verified by calculating the values of the expression in the question, those of each options, and then compare as follows:

Value of the expression = 10 x (13) = 10 x 13 = 130

Therefore, we have:

A. 10 + (1+3) = 10 + 4 = 14 \neq 130

B. (10 x 1)+3 = 10 + 3 = 13 \neq 130

C. 10 + (1x3) = 10 + 3 = 13 \neq 130

D. (10 * 1)3 = 10 * 3 = 30 \neq 130

Based on the calculations above, none of the expressions in the option is equal to 10 x(13).

6 0
3 years ago
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