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rosijanka [135]
3 years ago
7

Kali has a 20 foot ladder that she wants to use to get her cat out of a tree. She puts the base of the ladder 5 feet away from t

he base of the tree. How high into the tree will the ladder reach? Round your answer to the nearest tenth of a foot.
Mathematics
1 answer:
Musya8 [376]3 years ago
3 0
A^2 + b^2 = c^2
5^2 + b^2 = 20^2
25 + b^2 = 400
b^2 = 375
b = 19.4 feet
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253,248,243, find the 49th term.
denpristay [2]

Answer:

13

Step-by-step explanation:

the difference is -5

  • nth=a+(n-1)d
  • a=253,n=49,d=5
  • 253+(49-1)×-5
  • 253+48×-5
  • 253+(-240)
  • 253-240=13

the 49th term is 13

8 0
3 years ago
The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 17 minute
Arturiano [62]

Answer:

P(X>5) = 0.857

Step-by-step explanation:

Let X \sim uniform(3.17)

f(x) = \dfrac{1}{17-3}   ; \ \ \ 3 \le x \le 17

The required probability that it will take Isabella more than 5 minutes to wait for the bus can be computed as:

P(X > 5) =  \int ^{17}_{5} f(x) \ dx

P(X > 5) =  \int ^{17}_{5} \dfrac{1}{17-3} \ dx

P(X > 5) =\dfrac{1}{14}  \Big [x \Big ] ^{17}_{5}

P(X > 5) =\dfrac{1}{14} [17-5]

P(X > 5) =\dfrac{12}{14}

P(X>5) = 0.857

6 0
3 years ago
The ratio of the angles in a triangle is 7:10:3 what is the measure of the smallest angle?
Sonbull [250]
The correct answer should be 3.
4 0
3 years ago
At the rate of $2.00 per square foot the cost of painting the rectangular board with a semicircular top shown in the figure is $
Elenna [48]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
<span> 
it consists of a rectangle, dimensions  L = 4ft and W = 3ft = Ar = 4ft x 3ft = 12 ft^2

</span>then, you have one half of the area of the circle that has diameter  R = 3ft - radius will be r = 1.5ft the area of that half will be:

Ac = r^2 \pi/ 2
= (1.5 ft)^2 x 3.14 / 2
= 2.25 ft^2 x 3.4/2 
= 7.065 ft^2/ 2 
= 3.5325ft^2

A = Ar + Ac
A = 12ft^2 + 3.5325ft^2
A = 15.5325ft^2

<span>At the rate of $2 per square foot, the cost will be: 
$ 15.5325*2 = 31.07 </span>
5 0
3 years ago
Read 2 more answers
Functions 1 and 2 are shown:
My name is Ann [436]

Answer:

B

Step-by-step explanation:

Function 2 has a larger maximum.

5 0
3 years ago
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