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Natasha2012 [34]
3 years ago
9

Pls work out as T-Ratios.

Mathematics
1 answer:
TiliK225 [7]3 years ago
6 0

Answer:

16.93 m

Step-by-step explanation:

The triangle for the given scenario is shown below.

From the triangles \Delta ABC and \Delta ABD,

AB is the pole height, BC or BD is the distance of either of the wire guys from the foot of pole, and \angle C or \angle D is the angle that each either of the guys make with the top of pole.

Let the distance of either of the wire guys from the foot of pole be x.

Now, consider \Delta ABC.

Given: AB = 9 m, BC = x, and \angle C=28°.

Using tan ratio of the angle C, we get

\tan (\angle C)=\frac{AB}{BC}\\\tan (28)=\frac{9}{x}\\x=\frac{9}{\tan (28)}=16.93

Therefore, 16.93 m away from the foot of the pole are the guys anchored.

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J5.
igomit [66]

The probability is P = 0.004, so the correct option is D.

<h3 /><h3>How to find the probability?</h3>

We want to find the probability that 4 students lie on these 30% subgroup.

We know that there are 30 students, the 30% of 30 is:

x = (30%/100%)*30 = 9

So 9 out of 30 students prefer the tests to be on Mondays.

The probability that the first randomly selected kid wants the test to be on Monday is:

p= 9/30

For the next kid, the probability is:

p'= 8/29 (because one kid was already selected).

For the next one:

p'' =7/28

For the final one:

p''' =6/27

The joint probability is the product of these 4:

P = (9/30)*(8/29)*(7/28)*(6/27) = 0.004

So the correct option is D.

If you want to learn more about probability:

brainly.com/question/25870256

#SPJ1

7 0
2 years ago
When you square or cube a negative number is it still negative or does it become positive?
Fynjy0 [20]
When you square a negative number, the result is positive.
(-4)^2 = (-4)ª(-4) = 16

When you cube a negative number, the result is negative.
(-4)^3 = (-4)•(-4)•(-4) = -64

Negatives pair up and cancel out, so odd exponents always have one negative unpaired, making the result negative.
6 0
3 years ago
Find the value of x in the following quadrilateral
vlabodo [156]

Answer:

The answer is 63.31

Step-by-step explanation:

2x - 5 + 3x - 42 + x +  \frac{3}{7} x = 360 \\  \frac{45}{7} x = 360 + 47 \\ x = 63.31

6 0
3 years ago
Find the value of 8(4+3)-21 divided by7
Doss [256]

Answer:

5

Step-by-step explanation:

First, let us simplify the expression on the left

8(4+3) - 21 = 8(7) - 21 = 8(7) - 3(7) = 7(8-3)

Divide this by 7 and you'll get 8-3 = 5

3 0
2 years ago
A pair of shoes usually sells for $62. if the shoes are 20% off and the sale tax is 5% what is the total price of shoes includin
coldgirl [10]
Given that a pair of shoes has a price of $62, and it is discounted for 20%, so this would mean that $12.4 is discounted to the original price. So the new price would be $49.6. And now, since there is a 5% tax added, $2.48 is added so the new total price would be $52.08. The answer would be option D. Hope this helps.
4 0
3 years ago
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