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gtnhenbr [62]
1 year ago
5

b) The completed construction of a regular hexagon is shown below. Explain why ACF is a 30º-60º-90º triangle.

Mathematics
1 answer:
OLga [1]1 year ago
5 0

Answer: Please see the analysis

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Factor this equation 75k^2+30k=-3
Solnce55 [7]

Answer:

k=-1/5

Step-by-step explanation:

Factor and set each factor equal to zero.

Add 3 to both sides of the equation.

75k^2+30k+3=0

Factor 3 out of 75k^2+30k+3.

Factor using the perfect square rule.

Divide each term by 3 and simplify.

Set the 5k+1 equal to 0.

Solve for k.

7 0
3 years ago
Read 2 more answers
a. A 2017 poll found that 56​% of college students were very confident that their major will lead to a good job. If 15 college s
lesya [120]

Answer:

0.01083 or 1.083%

Step-by-step explanation:

This problem can be modeled as a binomial probability model with probability of success p = 0.56.

The probability of x=13 successes (a college student being very confident their major would lead to a good job) in a number of trials of n=15 is:

P(X=x) = \frac{n!}{(n-x)!x!} *p^x*(1-p)^{n-x}\\P(X=13) = \frac{15!}{(15-13)!13!} *0.56^{13}*(1-0.56)^{15-13}\\P(X=13) = 0.01083=1.083\%

The probability is 0.01083 or 1.083%.

8 0
2 years ago
If 24 books out of 60 are non-fiction what percent of books are fiction
sergiy2304 [10]
My guess is 3/10......because 24/60 is simplified to 3/10
6 0
3 years ago
Read 2 more answers
han exit showed that 7 out of every 8 voters cast a ballotin favor of an amendment to a city charter. at this rate, how many peo
stepladder [879]

298000  \div 8 = 37250 \\ 37250 \times 7 = 260750
260,750 voters cast a ballot in favor.
4 0
2 years ago
23,579<br> 38,743<br> 65,559<br> +66.559
viktelen [127]

Answer:

194,440 or 127,947.559

Step-by-step explanation:

if that's supposed to be a comma on 66.559 then the answer is 194,440. If not it's 127,947.559.

5 0
2 years ago
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