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3 years ago

3

Mathematics

1 answer:

vladimir2022 [97]3 years ago

6 0

Answer:

610*6

Step-by-step explanation:

524*3645+29264

if you want it you right away I like that one you want to go ahead and i I just got up from her yet I like the good ones are you excitedly I like that one

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HELP ME DO THIS PLZ

cestrela7 [59]

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

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

$y = 14$

3 0

3 years ago

1. Two more than the product of 3 and a number is -7.

Verdich [7]

Answer: -3

Step-by-step explanation:

2 + 3(x) = -7

-2 -2

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

3x = -9

x = -3

8 0

3 years ago

4(x/6+5)=2x+10 what x

Yanka [14]

Answer:

X is the example of the 10

the answer is 50

5 0

3 years ago

In 25 words or fewer, is this solution reasonable? Why or why not?

Julli [10]

Step-by-step explanation:

This solution is reasonable because equal slopes are parallel and negative reciprocals are perpendicular. Four right angles make up a rectangle, and this fulfills it

7 0

3 years ago

3. There are 5 routes from station A to station B and 4 routes from station B to C. Answer the questions

Ksivusya [100]

Answer:

A to B 5 routes and B to C 4 routes

Total options:

5*4 = 20

A to C, 20 ways as above calculation.

C to A, 20 ways as well.

Total options:

20 * 20 = 400

A to C, 20 ways

Return to A with different ways:

(5 - 1)(4 - 1) = 4*3 = 12

Total options:

20 * 12 = 240

4 0

3 years ago