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3 years ago

I need to know the answers to them

Mathematics

1 answer:

Archy [21]3 years ago

4 0

9. P2 with a tiny 2
10. 18-x
11. K-4
12. Z+12 or 12+X
13. 82g or 82xG
14. N-7
15. 32/X
16. H+7
17. C-31
18. T5 with a little 5
19. R-(7/8)
20. 12T or 12xT or Tx12
21.200n or 200xN or Nx200
Hope that helps

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Find the number of years it would take for $1,200 to earn simple interest of $324 at an annual interest rate of 6% per year.

nydimaria [60]

Years=100x S.I
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rate x principal

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3 years ago

Please answer the attached question by selecting of the the given answers.

Alchen [17]

Answer:

The correct answer is option A. Base = 11 cm and height = 13 cm

Step-by-step explanation:

It is given that, height of a triangle is 2 cm more than its base.Then height is increased by 2 cm.Then the area of triangle becomes 82.5 cm²

<u>To find the base an d height of original triangle</u>

Let x be the original base 'b' then the height h = x + 2

New height h = x + 2 + 2 = x + 4

Area = bh/2

82.5= (x(x + 4)/2

165 = x² + 4x

x + 4x - 165 = 0

Solving we get x = 11 and x = -15

Take positive value x = 11

Therefore base = 11 and height = x + 2 = 13 cm

The correct answer is option A. Base = 11 cm and height = 13 cm

5 0

3 years ago

Which equations to the right are Not True? (A) 12-2=2-12 (B) 12+2=2+12 (C) 12x2=2=2x12 (D) 12/2=2/12 Prove your answer.

Genrish500 [490]

I think the answer is A. Hope it helps

6 0

3 years ago

Read 2 more answers

Find the slope from the two points given: (2, 1) and (3,-10)

Lana71 [14]

Answer:

-11

Step-by-step explanation:

let (2,1)be x1 and y1 respectively

(3,-10) be x2 and y2 respectively

From,slope= (y2-y1)/(x2-x1)

=(-10-1)/(3-2)

= -11/1

= -11

6 0

3 years ago

The students in Suzanne's school are painting a rectangular mural outside the building that will be 15 feet by 45 feet. Scale dr

Katarina [22]

Answer:

The dimensions on paper are 1.992ft by 5.976ft with a scale factor of 7.53

Step-by-step explanation:

The first step will be to find the diagonal of the rea life mural.

We can use Pythagoras' Theorem to do this.

Diagonal = $\sqrt{15^2 +45^2 }$ =47.43 feet.

Now we have the real-life diagonal, we will now relate the diagonal of the painting outside with the one on paper. We can do this by dividing the two diagonals.

This will be 47.43 / 6.3 units = 7.53.

The scale factor is 7.53

To get the dimensions of the length and the breadth on paper, we divide the outside dimensions by the scale factor.

This will be

Length = 15/ 7.53 = 1.992

Breadth = 45/7.53 = 5.976

Therefore, the dimensions on paper are 1.992ft by 5.976ft with a scale factor of 7.53

3 0

3 years ago