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SCORPION-xisa [38]
2 years ago
9

In the right triangle shown, measure of angle A equals 45 degrees and the measure of AB equals 12. How long is BC?

Mathematics
1 answer:
Tatiana [17]2 years ago
4 0

Answer:

think ab = 4

Step-by-step explanation:

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Help me please 100 points! with work!
Tcecarenko [31]

Answer:

sorry i donot know.......

7 0
3 years ago
1. A heterozygous white-fruited squash plant is crossed with a yellow-fruited plant, yielding 200 seeds. of these seeds, 110 pro
garri49 [273]

Answer:

Part 1 , not significant

Part II, significant

Step-by-step explanation:

Given that a  heterozygous white-fruited squash plant is crossed with a yellow-fruited plant, yielding 200 seeds. of these seeds, 110 produce white-fruited plants while only 90 produce yellow-fruited plants

H_0: Both colours are equally likely\\H_a: Both colours are not equally likely

(Two tailed chi square test)

We assume H0 to be true and find out expected

If H0 is true expected would be 100 white and 100 yellow

Chi square = \Sigma \frac{(O-E)^2}{E} \\=\frac{(110-100)^2}{100} +frac{(90-100)^2}{100} \\=2

df = 1

p value = 0.152799

Since p value > 0.05 at 5% level we accept that the colours are equally likely

2)

Here observed are 1100 and 900

Expected 1000 & 1000

df = 1

Chi square = \frac{20000}{100} =200

p value <0.0001

These results are here statistically significant.

8 0
2 years ago
Assume that a procedure yields a geometric distribution where the probability of success is 90%. use the geometric probability f
Thepotemich [5.8K]

The final answer is 9 percent

5 0
2 years ago
Need help plz i dont know how to do this
nexus9112 [7]
You FOIL
9x^2-15x+21x-35
Combine like terms
9x^2 + 6x - 35
8 0
2 years ago
In a random sample of 64 people, 48 are classified as 'successful.' Determine the sample proportion of 'successful' people.
hichkok12 [17]

Answer:

The sample proportion of 'successful' people is \frac{3}{4}.

Step-by-step explanation:

The sample consist of 64 people and 48 of them are 'successful'. Hence, the proportion of 'successful' people is:

p = \frac{n}{N}

Where:

N - People that forms the sample, dimensionless.

n - People classified as 'successful', dimensionless.

Given that n = 48 and N = 64, the sample proportion of 'successful' people is:

p = \frac{48}{64}

p = \frac{3}{4}

The sample proportion of 'successful' people is \frac{3}{4}.

6 0
3 years ago
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