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3 years ago

80 POINTS

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

7 0

1. D. 2. D. 3.B. 4. C. 5.C. 6.A. 7.C. 8. B. 9.A. 10.D.

frez [133]3 years ago

6 0

I GOT YOU

1. b

2. b

3. b

4. c

5. c

6. a

7. c

8. b

9. a

10. d

hope this helps!

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HELP ASAP<br> PLZ ITS URGENT

Radda [10]

Answer:

It landed at a height of 14 feet

Step-by-step explanation:

Given

$y = -\frac{1}{8}x^2 +4x$ --- Path of a t-shirt

$3y = 2x - 14$ --- height of bleachers

Required

Height when t-shirts land in bleachers

$3y = 2x - 14$

Make y the subject

$y = \frac{2}{3}x - \frac{14}{3}$

Substitute $y = \frac{2}{3}x - \frac{14}{3}$ in $y = -\frac{1}{8}x^2 +4x$

$\frac{2}{3}x - \frac{14}{3} = -\frac{1}{8}x^2 +4x$

Multiply through by 24

$16x- 112 = -3x^2 +96x$

Express as:

$3x^2 + 16x -96x- 112 = 0$

$3x^2 -80x- 112 = 0$

Using a calculator:

$x = 28$ or $x = -\frac{4}{3}$

x can not be negative:

So:

$x = 28$

Substitute $x = 28$ in $y = -\frac{1}{8}x^2 +4x$ to calculate the height it landed

$y = -\frac{1}{8} * 28^2 + 4 * 28$

$y = 14$

8 0

3 years ago

You have 10,000 dollors to deposit in a savings account that earns simple interest at a rate of 4.5% per year. how much interest

trasher [3.6K]

I=prt,,, I=10000*4.5%*2=????

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4 years ago

In order to fill the following box you would need to fill in 15 unit cubes in length, 8 unit cubes in with and 13 unt cubes in h

Lana71 [14]

Answer:

1560

Step-by-step explanation:

i dont understand but 15*8*13 is 1560

3 0

3 years ago

Read 2 more answers

Given that (–2, y) and (4, 6) are points on a line whose slope is-4/3 , find y.

bulgar [2K]

Answer:

The value of y is 14

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the points

$(-2, y)\ and\ (4, 6)$

$m=-\frac{4}{3}$

substitute in the formula the given values

$-\frac{4}{3}=\frac{6-y}{4+2}$

solve for y

$-\frac{4}{3}=\frac{6-y}{6}$

Multiply by 6 both sides

$-8=6-y$

$y=6+8=14$

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4 years ago

What is equivalent to i^29?

Digiron [165]

Answer:

Step-by-step explanation:

7 0

4 years ago