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3 years ago

the weight of a rock sample is measured to be 3.1 pounds. What is the percent of error in the measurement?

Mathematics

1 answer:

Arlecino [84]3 years ago

7 0

2% , 5% , 10% are the errors in that

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Jeff bought a new jacket that had a regular price of $75.99. His mom gave him a 30% off coupon. What is the price he pays includ

solmaris [256]

Answer:98.99

Step-by-step explanation:

So we are gonna do 75.99+30-7=98.99 so basically he won't have enough money. Hope dat helps

8 0

3 years ago

A man standing on a lighthouse at a height of 124 feet sights two boats directly in front of him. One is at an angle of depressi

Ksivusya [100]

Answer:

$125\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ABC find the length side BC

we know that

$tan(62\°)=\frac{124}{BC}$

$BC=\frac{124}{tan(62\°)}$

step 2

In the right triangle ABD find the length side BD

we know that

$tan(33\°)=\frac{124}{BD}$

$BD=\frac{124}{tan(33\°)}$

step 3

we know that

The distance between the two boats is the length side CD

$CD=BD-BC$

substitute the values

$CD=\frac{124}{tan(33\°)}-\frac{124}{tan(62\°)}=125\ ft$

5 0

3 years ago

0.5y/4/9=y+3/8

PIT_PIT [208]

Step-by-step explanation:

The question needs to be more specific. But assuming it is 0.5y/(4/9), I will solve it.

This would make it 4.5y/4 =y + 3/8

- Multiply 4 to both sides

4.5y = 4y + 12/8

- Subtract 4y to both sides

0.5y = 12/8

- Divide both sides by 0.5

y = 3

Now plug in to check.

0.5(3)/(4/9)=3+3/8

Both equals 3.375!

If this helped, please feel free to pick this answer as the brainliest! Thank you very much and have a wonderful day!

8 0

3 years ago

740>577479<96>859 <658>86÷7577=

bezimeni [28]

This would be listed as true, since 740<.

6 0

3 years ago

What is the equivalent expression

Citrus2011 [14]

Answer:

H. 6x^2 + 7x + 49

Step-by-step explanation:

= 3x^2 + 14 - 7x + 6 + 29 + 3x^2 + 5x + 9x

Combine like terms

= 6x^2 + 7x + 49

5 0

3 years ago

Read 2 more answers