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DochEvi [55]
3 years ago
7

I need help with a problem help pls

Mathematics
2 answers:
Viktor [21]3 years ago
6 0
There are 2 circular bases: A = π r²
A = π (3)²
   = 9 π

There is one lateral face that is a rectangle: A = L x W
In this instance, the length equals the perimeter of the circle: L = 2 π r
A = 2 π (3) x 7
   = 42 π

Surface Area = 2(9 π) + 42 π
                       = 18 π + 42 π
                       = 60 π
                       ≈ 188

Answer: D
Tcecarenko [31]3 years ago
4 0
2 π x 3 x 7 + π x 3^2 x2= 60 π= 188
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The errors in predicting hurricane tracks are given in nautical miles. A statutory mile is 0.86898 nautical mile. Most people li
trasher [3.6K]

Answer:

The prediction error is calculated as the difference between the actual value and the predicted value of the hurricane tracks.

the actual and the predicted value can then be converted into stationary miles

Step-by-step explanation:

The prediction error is calculated as the difference between the actual value and the predicted value of the hurricane tracks.

Now,

both the values i.e the actual and the predicted value can then be converted into stationary miles using the conversion factor without changing the association with the year,

Hence,

it will do the same for the Prediction error.

5 0
3 years ago
On the 7th grade field trip to Washington D.C for every 8 students there were 3 chaperones. 12 chaperones were needed. How many
irinina [24]
32 students would be on the trip. What I did to solve it was a proportion. 8students/ 3 chaperones= x students/12 chaperones.
8*12= 96 and 96/3=32. Therefore 32 students were on the trip.
3 0
3 years ago
PLS I NEED HELP BRAINLIEST IS UP FOR GRABS
Gwar [14]

Answer:

(a) x > 4   (b) y < -2

Step-by-step explanation:

Domain is referring to the x-values while the range is referring to the y-values.

Since the function (the line) has a circle at the point (4, -2), the function will be exclusive at that coordinate.

The line goes to infinity for the x-values from 4, so you write x > 4 or ∞ > x > 4.

Similarly, the line goes to infinity for the y-values from -2, so you write y < -2 or -∞ < y < -2.

7 0
3 years ago
A television network is about to telecast a new television show. Before a show is launched, the network airs a pilot episode and
Basile [38]

Answer:

(E) 0.83

Step-by-step explanation:

We will solve it using conditional probability.

Let A be the event that a TV show is successful.

P(A) = 0.5

A' be event that the show is unsuccessful

P(A') =0.5

Let B be the event that the response was favorable

P(B) = 0.6

Let B' be the event that the response was unfavorable/

P(B') = 0.4

P(A∩B) = 0.5 and P(A∩B') = 0.3

We need to find new show will be successful if it receives a favorable response.

P(A/B) = \frac{P(A∩B)}{P(B)}

           = 0.5/0.6

           = 0.833

7 0
3 years ago
Read 2 more answers
Which expression is equivalent to 2x - 17?
liraira [26]

2x - 17?

= -17 +2x (using commutative property of addition, changing order and sum remains the same)

answer is A) -17 + 2x

8 0
3 years ago
Read 2 more answers
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