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3 years ago

I NEED HELP PLEASE! :)

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

6 0

Answer:

ΔVUW ≅ ΔXYW

Step-by-step explanation:

These triangles are congruent by Angle-Side-Angle (ASA) Theorem. This is because they both share two corresponding congruent angles, being Angle U and Angle Y, and Angle VUW and Angle XYW (they're vertical angles, meaning they're congruent).

They also share a corresponding congruent side, being Side UW and Side YW. You can tell because of the congruent dash marks on the sides, that have already been given to you.

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Evaluate the expression x= -2

Juli2301 [7.4K]

Answer:

x equals negative two

Step-by-step explanation:

that's how you would say it

7 0

3 years ago

An electric sale gives a reading equal to the true weight plus a random error that isnormally distributed with mean 0 and standa

Pepsi [2]

Answer:

a) 95% confidence interval estimate of the true weight is (3.026, 3.274)

b) 99% confidence interval estimate of the true weight is (2.944, 3.356)

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

M is the mean of five successive weightings (3.150)

ME is the margin of error from the mean

And margin of error (ME) can be calculated using the formula

ME= $\frac{t*s}{\sqrt{N} }$ where

t is the corresponding statistic in the given confidence level and degrees of freedom(t-score)

s is the standard deviation of the random error (0.1)

N is the sample size (5)

Using the numbers 95% confidence interval estimate of the true weight is:

3.150± $\frac{2.776*0.1}{\sqrt{5} }$ ≈3.150±0.124

And 99% confidence interval estimate of the true weight is:

3.150± $\frac{4.604*0.1}{\sqrt{5} }$ ≈3.150±0.206

3 0

3 years ago

What the answer to <br> 4 x 4 x 4

serious [3.7K]

4x 4 x 4 = 64. I hope this helps.

3 0

2 years ago

Which best explains how you know that P(2, 7) is on the same line as Q(7, 4) and R(12, 1)?

Helen [10]

Answer:

See explanation below

Step-by-step explanation:

The best explanation is noticing that in order to get from the point R (12, 1) to the point Q (7, 4) we move 5 units to the left and 3 units up. And to go from point Q (7, 4) to point P (2, 7) we do exactly the same: move 5 units to the left and 3 units up. That means that these points are all connected via the same rate of change: - 3/5, which is in fact the slope of the line the three points belong to.

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3 years ago

Solve: 9x2 - 30x + 20 = 0

Trava [24]

Actually I don't know the answer but what I thing is none of the above.

4 0

3 years ago