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Agata [3.3K]
2 years ago
10

I need help solving these equations because my mathematics teacher didn't explain as well.​

Mathematics
1 answer:
natka813 [3]2 years ago
5 0

Answer:

so to find slope for ordered pairs do y-y over x-x make sure the ordered pairs match up vertically

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A 2000 lb crystal chandelier in a Las vegas Hotel is suspended by 2 cables.
Musya8 [376]

Answer:

maaf tidak tau ya saya wkwkwk

5 0
3 years ago
What is the product of the complex numbers (-3i+4) and (3i+4)?
Nataly_w [17]

Answer: 25

Step-by-step explanation:

Finding the product of complex numbers is not different to finding the product of real numbers

(-3i+4) * (3i+4) = -9i^2 + 12i - 12i + 16 = 25

5 0
2 years ago
Read 2 more answers
A random sample of 200 voters in a town is selected, and 114 are found to support an annexa- tion suit. Find the 96% confidence
EastWind [94]

Answer:

a) 96% CI: 0.51\leq\pi\leq 0.63

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.

Step-by-step explanation:

The proportion of the sample is

p=\frac{114}{200}=0.57

The standard deviation of the sample proportion is

\sigma=\sqrt{\frac{p(1-p)}{n} } =\sqrt{\frac{0.57(1-0.57)}{200} } =\sqrt{\frac{0.2451}{200} } =0.035

For a 96% CI, the z-value is z=1.751.

Then, the 96% CI can be written as:

p-z\cdot \sigma\leq\pi\leq p+z\cdot \sigma\\\\0.57-1.751*0.035\leq\pi\leq 0.57+1.751*0.035\\\\0.57-0.06\leq\pi\leq 0.57+0.06\\\\0.51\leq\pi\leq 0.63

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.

6 0
3 years ago
What follows in this line<br> 3, -6, 12, 4, 20, ?
Elden [556K]
First differences are -9, +18, -8, +16, suggesting that the next ones will be -7, +14.

Hence, the next two terms might be expected to be 13, 27.
4 0
3 years ago
The width of a rectangle is 8 cm less than its length. The perimeter of the rectangle is 52 cm. What is the width of the rectang
ozzi
L = X
w = X - 8
P = 52 cm

P = 2l + 2w
52 = 2(X) + 2(X - 8)
52 = 2x + 2x - 16
52 + 16 = 4x
68 = 4x
68/4 = 4x/4
17 = X.

The length of the rectangle is 17 cm.

W = X - 8
W = 17 - 8
W = 9 cm.

The width of the rectangle is 9 cm.
6 0
3 years ago
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