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kvasek [131]
3 years ago
12

Which of the following obtains data from a subset of a population to evaluate traits of the population (4 points)

Mathematics
1 answer:
GenaCL600 [577]3 years ago
3 0

Answer:D

Step-by-step explanation:

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What is the surface area of the triangular prism
Harrizon [31]

Answer:

surface \: a = 9 \times 5 \\  =  45ft \times 2 \\  =   {90}^{2} ft\\ surface \: b =  \frac{1}{2} bh \\  =  \frac{1}{2 }  \times 6 \times 4 \\  = 3 \times 4 \\  = 12 \times 2 \\  =  {144}^{2} ft \\  =  90 + 144 \\  =  {234}^{2} ft

3 0
3 years ago
A helicopter flying 1,600 feet above the ground spots an airplaneflying above. If the horizontal distance between the helicopter
laila [671]

Answer:

10472. 4 ft

Step-by-step explanation:

Let the height of the plane above the helicopter be "h"  

We have a right triangle  where  the side opposite the 71 degree angle  =  h   and the side adjacent to this angle =  3055

So   we can use the tangent here

tan (71)  =  h / 3055       multiply both sides by 3055

3055 * tan (71)  =  h ≈   8872.4  ft

So.......the total altitude of the plane is

1600 + 8872.4  =

10472. 4 ft

3 0
3 years ago
Reword this plz The average test score for the science class after completing test 2 is 84.
eduard

Answer:

Given : The linear function f(x) = 0.2x + 79 represents the average test score in math class, where x is the number of the test taken.

The linear function g(x) represents the average test score in your science class, where x is the number of the test taken.

X

g(x)

1 1

86

2 3

84

82

To Find : test average for math class after completing test 2

test average for science class after completing test 2

Which class had a higher average after

completing test

Solution:

f(x) = 0.2x + 79

=> f/2) = 0.212) + 79 = 79.4f(x) = 0.2x + 79

=> f(4) = 0.2(4) + 79 = 79.8

test average for math class after completing test 4 = 79.8 =

1 1 2 3 4 g(x) 86 84 82 80

Х

g(2) = 84

test average for science class after completing test 2 = 84

g(4) = 80

test average for science class after completing test 4 = 80

80 > 79.8science class has more average than

MARK AS THE BRAINLIEST

math after 4 test

6 0
2 years ago
Please help me with the question. Will mark brainliest.
Inessa05 [86]

Step-by-step explanation:

A.) Ok, so the mean price for Southtown is 72,800.

And the mean price for middle town is 54,900

So Southtown has the higher mean price.

Explanation:

To find the mean. You must first add up all the numbers, then divide the total by how many numbers you added up.

72,000 + 50,000 + 68,000 + 93,000 + 81,000 = 364,000

Then,

364,000/ 5 = 72,800

B.) It is 17,900

Explanation:

72,800 - 54,900 = 17,900

Hope this helps you out!!! : )

6 0
3 years ago
Arithmetic Sequence Need Assistance
PIT_PIT [208]

let the first term is a

by the sum of first n term formula

\frac{20}{2}(2a+19d)=25a\\20a+190d=25a15\\190d=5a\\a=38d

substitute to sum of first 30 term

\frac{30}{2}(2a+29d)=\frac{30}{2}(2(38d)+29d)\\=15(76d+29d)\\=15(105d)\\=1575d

4 0
3 years ago
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