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3 years ago

A slide and its ladder form a right triangle with the ground, with the

Mathematics

1 answer:

zhuklara [117]3 years ago

8 0

Answer:

15.6 ft

Step-by-step explanation:

Let's call

a: distance from the top of the ladder to the ground = 10 ft

b: distance from the bottom of the ladder to the bottom of the slide = 12 ft

c: length of the slide

From Pythagorean theorem:

c² = a² + b²

c = √(10² + 12²)

c = 15.6 ft

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Explain your answer choice with sentences or record your explanation.

Sladkaya [172]

Answer:

B. 1.82n

Step-by-step explanation:

Expression given: n + n - 0.18n

Adding n+n gives '2n'

then subtracting 0.18n from 2n gives= 1.82 n

Therefore,

n + n - 0.18n=0.18n

3 0

3 years ago

The sparkling house cleaning company has cleaned 28 houses this week. If this number represents 40% of the total number of house

erma4kov [3.2K]

28 number of Houses = 40% of the total houses the cleaning company needs to clean in a week.
Find the total number of houses do the cleaning company needs to clean in a week>
=> 28 number of houses / 40%
=> 28 / 0.4
=> 70
Thus, the total number of houses that a cleaning company needs to clean in the whole week is 70 houses.
Since they already cleaned 40% of it, which is 28, thus, they still need to clean 42 more.

3 0

4 years ago

Can anyone tell me the answer and explination for this???

romanna [79]

Answer:

Step-by-step explanation:

A=bh

b-8

h-4

A= 8 x 4

A=32

5 0

3 years ago

Read 2 more answers

2 triangles. One triangle has side lengths x, 3 units, 4 units. The other triangle has side lengths 11 units, y, 8 units. The tw

attashe74 [19]

Answer:

5.5 and 6

Step-by-step explanation:

i got it wrong and it told me this was the correct answer

6 0

2 years ago

The linear function f(x) = 0.9x + 79 represents the average test score in your math class, where x is the number of the test tak

Levart [38]

Given:

The linear function for average test score in your math class is

$f(x)=0.9x+79$

where x is the number of the test taken.

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

To find:

Part A: The test average for your math class after completing test 2.

Part B: The test average for your science class after completing test 2.

Part C: Which class had a higher average after completing test 4?

Solution:

Part A:

We have,

$f(x)=0.9x+79$

Put x=2 in the above function, to find the test average for your math class after completing test 2.

$f(2)=0.9(2)+79$

$f(2)=1.8+79$

$f(2)=80.8$

Therefore, the test average for your math class after completing test 2 is 80.8.

Part B:

From the given table it is clear that g(x) =79 at x=2.

Therefore, the test average for your science class after completing test 2 is 79.

Part C:

Put x=4 in f(x), to find the test average for your math class after completing test 4.

$f(4)=0.9(4)+79$

$f(4)=3.6+79$

$f(4)=82.6$

From the table it is clear that the value of g(x) is increased by 1 as x is increased by 1. So, the value of function g(x) at x=4 must be 1 more than 80.

$g(4)=81$

It is clear that,

$82.6>81$

Therefore, math class had a higher average after completing test 4.

3 0

3 years ago