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katovenus [111]
2 years ago
10

Please hurry I will mark you brainliest

Mathematics
2 answers:
pantera1 [17]2 years ago
6 0

Three angles are not acute

so it is false

sergejj [24]2 years ago
3 0

Answer:

This is false

Step-by-step explanation:

If the interior angles are in the ratio 4:3:2:1, let "a" represent the last angle. Then, the other angles are 2a, 3a, and 4a. The sum of the angles in a quadrilateral is 360°. So, only two angles are acute not 3

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{ y = 3x - 4<br> y = x + 2
Savatey [412]
X=3 and y=5 that's all
3 0
3 years ago
If the legs of a right triangle are both 8 cm, find the area of the triangle. A) 8 cm2 B) 16 cm2 C) 32 cm2 D) 64 cm2
Alex787 [66]

Answer:

32cm

Step-by-step explanation:

Area of a triangle= 1/2 X b X h

b= 8

h=8

1/2 X 8 X 8

= 4 X 8

= 32cm

5 0
3 years ago
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PLEASEEW HELPPP WILL MARK BRAINLEST !!pntss
Artist 52 [7]

Answer:

the correct answer is choice 2

Step-by-step explanation:

reason being that both bc and ac would both be vertical lines so they have the same slope of undefined

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3 years ago
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The mailing list of an agency that markets scuba-diving trips to the Florida Keys contains 78% males and 22% females. The agency
choli [55]

Answer:

a) 0.98% probability that 17 of the 29 people are men.

b) 3.86% probability that the first woman is reached on the 8th call

Step-by-step explanation:

For each person chosen by the agency, there are only two possible outcomes. Either it is a man, or it is a woman. The probability of selecting a man or a women in each trial is independent from other trials. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

(a) What is the probability that 17 of the 29 people are men?

This is P(X = 17) when n = 29, p = 0.78. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 17) = C_{29,17}.(0.78)^{17}.(0.22)^{12} = 0.0098

0.98% probability that 17 of the 29 people are men.

(b) What is the probability that the first woman is reached on the 8th call?

On the first 7 trials, all men, each with a 78% probability.

On the 8th trial, a women, with a 22% probability. So

P = (0.78)^{7}*0.22 = 0.0386

3.86% probability that the first woman is reached on the 8th call

4 0
3 years ago
A student bought 3 shirts at $12.25 each and 2 pairs of pants at $25.50 each. How much money
4vir4ik [10]

Answer: 87.75

Step-by-step explanation:

Multiply 12.25 times 3 because the student bought 3 shirts

Then multiply 25.50 times 2 because the student bought two pairs of pants

Then add up both your multiplication together and you will get 87.75

3 0
3 years ago
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