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zalisa [80]
2 years ago
13

Pls help ill give Brainliest!!

Mathematics
1 answer:
olga_2 [115]2 years ago
5 0

Answer:

See attached

Step-by-step explanation:

1) For each chart we will fill in 4 rows, as it says, to show 0.4 or 4/10

2) For this part, we will shade in 4 rows twice, or 8, as it says. This shows 0.4 being multiplied by 2.

b) 8/10 or 0.8 because we have shaded 8 out of the 10 rows, 8/10 = 0.8

c) 0.8 is our answer as we have found out from the above steps

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

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stellarik [79]

Answer:

none........ i think...

8 0
3 years ago
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What is the y intercept of the line y = 2x+1?
Tresset [83]

Answer:

1

Step-by-step explanation:

the equation for a slope-intercept line is y=mx+b. In this equation, b represents the y intercept. In the equation you posted, 1 is in the place of b, so one is the y intercept.

hope this helps

6 0
3 years ago
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Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tent
nalin [4]

Answer:

The last one (x=11.3, y=8).

Step-by-step explanation:

1) There are three trigonometric ratios for right-angled triangles.

sin()=\frac{opposite}{hypotenuse}\\cos()=\frac{adjacent}{hypotenuse}\\tan()=\frac{opposite}{adjacent}

In a right triangle, the hypotenuse, h, is the side opposite the right angle. Relative to the acute angle θ, check the attachment, the legs are called the opposite side, o, and the adjacent side a.

2) In this case, we are given a length and an angle to find x and y.

Let's find x first. To find x we need to use sin()=\frac{opposite}{hypotenuse}.

sin(45)=\frac{8}{x}\\sin(45)x=8\\x=\frac{8}{sin(45)} \\x=11.31

Find y.

Notice that, we can use the Pythagorean Theorem (c^2=a^2+b^2) to find y.

c^2=a^2+b^2

11.31^2=8^2+b^2\\11.31^2 - 8^2 = b^2\\63.9161 = b^2\\\sqrt{63.9161} = b\\b = 7.99

3) Round them off to the nearest tenth.

x=11.31\\x=11.3

y=7.99\\y=8

Therefore, the correct choice is the last one (x=11.3, y=8).

4 0
3 years ago
Can you help me with this math problem b -12 = -8
hjlf

Possible Answers:

1. b = 1.5

2. b = 20

3. b = 4

STEP-BY-STEP:

1. -12 ÷ -8

2. b + 20 = 8

3. b + -12 = -8

EXTRA:

Please mark me as brainliest.

This took about 10 minutes to figure out, and write the equations, because I had to re-figure out how I got the original answers.

3 0
4 years ago
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nekit [7.7K]

252km

i think it may be wrong but im pretty sure that should be right.

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3 years ago
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