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xenn [34]
3 years ago
8

PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT (you can use a calculator if you want)

Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

1. B.

2. A, E.

3. D.

Step-by-step explanation:

1. 8.225 ÷ 5 = 1.645

2. 892 ÷ 8 = 111.5

8920 ÷ 80 = 111.5

894 ÷ 10 = 89.4

89.2 ÷ 0.08 = 1115

8.92 ÷ 0.8 = 11.15

0.892 ÷ 0.008 = 111.5

3. 4367 ÷ 0.004 = 1,091,750

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If the mountain is 1,200 feet tall, find the length of the ski lift
Nina [5.8K]
The length of the sky lift is 3.387.05 ft
Step-by-step explanation;
By an online search, i found that the sky lift
rises at an angle of 20.75 degrees.
Then we can think on a triangle rectangle, such
that:
One cathetus is 1200ft, this is the opposite
cathetus to the angle of 20.75°
The length of the ski lift would be the
hypotenuse of this triangle rectangle.
Then we can use the relationship:
Sin(a) = opposite cathetus/hypoteuse.
such that:
a = 20.75°
opposite cathetus=1200ft
then:
sin(20.75°) = 1200ft/hypotenuse
hypotenuse =1200ft/sin(20.759) =3.387.05 ft
The length of the sky lift is 3.387.05 ft
7 0
3 years ago
I seriously need help.
Leni [432]

Let's go:


y = ax + b


{5 = 4a + b

{15 = - 6a + b


{5 = 4a + b

{- 15 = 6a - b

10a = - 10

a = - 1


5 = 4a + b

4.(-1) + b = 5

b - 4 = 5

b = 9


- 1; 9


y = -1x + 9


I hope I helped you.

3 0
3 years ago
Identify the domain and range of the following relation. 3.7
andrey2020 [161]
<span>Answer: {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8}**** B.Domain:{-2,1,4,7,8}</span>
7 0
4 years ago
What is the answer here and explain why.
Mama L [17]

Answer:

x = 8

Step-by-step explanation:

Given

- 4(- x + 8) = 0

- 4≠ 0, so

- x + 8 = 0 ( subtract 8 from both sides )

- x = - 8 ( multiply both sides by - 1 )

x = 8

4 0
3 years ago
Read 2 more answers
Helpppp meee pleaseee
just olya [345]

Answer:

Refraction trust me  I am in high school biology

Step-by-step explanation:

7 0
3 years ago
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