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Anastaziya [24]
3 years ago
12

Select ALL the correct answers,

Mathematics
1 answer:
Vaselesa [24]3 years ago
8 0
<h2><u>Answer</u><u> </u><u>:</u></h2>

Option (2) and Option (3) is the correct answer .

<u>Requ</u><u>ired</u><u> </u><u>Ex</u><u>plaination</u><u> </u><u>:</u>

Scenario 2 : The height of a stone shot by a catapult reaches a maximum height and then falls on the ground.

  • The graph of this scenario is a downward parabola. Therefore option 2 is correct.

Scenario 3 : The sale of product increases at first and then decreases.

  • The graph of this scenario is a downward parabola. Therefore option 3 is correct.

<u>Therefore, the correct options are </u><u>2</u><u> </u><u>and</u><u> </u><u>3</u><u>.</u>

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The questions are in the images pls answer all or your answer will be deleted because this is for a lot of points and im losing
PilotLPTM [1.2K]

1)

x + 2y = 21

+ -x + 3y = 29

--------------------------

5y = 50

y = 10

x + 2(10) =21

x = 1

2)

6x + 6y = 30

+ 15x - 6y = 12

-------------------------------

21x = 42

x = 2

6(2) + 6y = 30

6y = 18

y = 3

7 0
3 years ago
The scores on an exam are listed. If a teacher wants to explain how poorly the class did on the test, would she use the mean, me
Natasha_Volkova [10]
Mean because the mean is an average. That gives an overall understanding of what the entire class did.
4 0
3 years ago
Read 2 more answers
How long will it take for an airplane that averages 95 miles an hour to fly 1,710 miles?
zysi [14]
The correct answer is 18 hope that helped♥
5 0
3 years ago
If t=38.5 and s=31.4 find S. Round to the nearest tenth
zubka84 [21]

<u>Answer:</u>

The correct answer option is C. S = 54.6°.

<u>Step-by-step explanation:</u>

We are given a right angled triangle with two known sides, s and t.

We are to find the value of the angle S.

For that, we will use sine.

sin S = \frac { s } { t }

sin S = \frac { 3 1 . 4 } { 3 8 . 5 }

S = sin'0.815

S = 54.6°

8 0
3 years ago
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You are given an n×n board, where n is an even integer and 2≤n≤30. For how many such boards is it possible to cover the board wi
faltersainse [42]

Answer:

  7

Step-by-step explanation:

The number of cells in a tile is 4. If colored alternately, there are 3 of one color and 1 of the alternate color. To balance the coloring, an even number of tiles is needed. Hence the board dimensions must be multiples of 4.

In the given range, there are 7 such boards:

  4×4, 8×8, 12×12, 16×16, 20×20, 24×24, and 28×28

3 0
3 years ago
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