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iren [92.7K]
3 years ago
14

Erica earn 30,000 bonus points on her computer assignment this is 10 times as many bonus points as she earned last week how many

bonus points did Erica earn last week
Mathematics
1 answer:
yan [13]3 years ago
3 0
She earned 3,000 last week
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Luke is swimming in a river with a current flowing west to east at a constant speed of 3.5 meters/second. Assume that Luke's wat
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Decompose each velocity in its i and j - coordinates.


1) River's velocity


3.5 m/s, west fo east = 3.5i + 0j


2) Luke's velocity

5m/s, 60° east of north

5* sin(60°) i + 5*cos(60°) j = 4.33 i + 2.5 j


3) Resultant velocity

[3.5i + 0j] + [4.33i + 2.5j] = 7.83i + 2.5j


resultant speed = √[ (7.83)^2 + (2.5)^2 ] = 8.22 m/s


angle = arctan(2.5 / 7.83) = 17.7° north of east (equal to 72.3° east of north).

6 0
3 years ago
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George has $15. He tries to buy a movie ticket ($9.00), a pretzel ($2.65), a drink ($1.35), and two veggie cups ($1.74 each) but
Zinaida [17]

Answer: he needs to buy one less veggie cup

Step-by-step explanation:

7 0
2 years ago
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Solve the problem. Round the point estimate to the nearest thousandth. Find the point estimate of the proportion of people who w
Blababa [14]

Answer:

b. 0.055

Step-by-step explanation:

The point estimate of the proportion of people who wear hearing aids is

The number of people in the sample who wear hearing aids divided by the total number of people in the sample.

In this problem, we have that:

Sample of 855.

47 people in the sample had hearing aids.

47/855 = 0.0549

Rounding up

0.055

So the correct answer is:

b. 0.055

4 0
3 years ago
Governmental financial assistance that helps fund a student's postsecondary education is known as _____. A. the FAFSA B. a Pell
Elina [12.6K]
The answer is d apex
7 0
3 years ago
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Suppose g (x) is increasing and concave up everywhere and g(A)=7, gprime(A)=13, h=.01
rewona [7]
First we need a point (x,y) : (A, 7) 
<span>Now slope (from f'(A)) = 15 </span>
<span>Next, the equation (using point slope formula) </span>

<span>y - 7 = 15 (x -A) </span>
<span>y = 15 (x - A) + 7 </span>

<span>Now in the x spot we put 'A-.01' </span>
<span>y = 15 ( A - .01 - A) +7= 15(-.01) +7 = -.15+ 7 = 6.85 
hope this helps</span>
8 0
3 years ago
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