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DaniilM [7]
3 years ago
8

I need help on this question

Mathematics
1 answer:
gtnhenbr [62]3 years ago
8 0
8:20 pm because if Prisha read 60 pages for a half hour, and she read 40 until 8:40, it would be 8:20 pm
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Review the following information about vectors q and r.
Vitek1552 [10]
<h3>Answer:  a = -1  (fourth choice)</h3>

==========================================

Work Shown:

q = (-4, 1) is one vector

r = (a,3) is another vector

The resultant vector is

q+r = (-4,1)+(a,3)

q+r = (-4+a,1+3)

q+r = (-4+a,4)

Multiply both sides by 7

7(q+r) = 7*(-4+a,4)

7(q+r) = (7*(-4+a),7*4)

7(q+r) = (-28+7a, 28)

---------------

Since 7(q+r) = (-35, 28), we know that,

(-28+7a, 28) =  (-35, 28)

which leads to

-28 + 7a = -35

when we equate the x components of each vector. Let's solve for 'a'

-28 + 7a = -35

7a = -35+28

7a = -7

a = -7/7

a = -1

--------------

Check:

q = (-4,1)

r = (a,3) = (-1,3)

q+r = (-4,1)+(-1,3)

q+r = (-4+(-1), 1+3)

q+r = (-5, 4)

7*(q+r) = 7*(-5, 4)

7*(q+r) = (7*(-5), 7*4)

7*(q+r) = (-35, 28)

The answer is confirmed.

7 0
3 years ago
Read 2 more answers
Please help me with this. thank you!
Firlakuza [10]

Answer:  

1. y = mx + b

Step-by-step explanation:

y = mx + b

2) to find the y intercept you need to see what cross | ( 8,5)

3) 5 = m(8) = b

4) your slope is negative form the why it pointing

5) in this case your slope is 1/3

6) so now you can do your first step now that you have your (y,x) and slope (your solving for (b)

7)

5 = 1/3 (8) + b

5 = 2.6 + b

5 = 2.6

-2.6

2.4 = b

6 0
2 years ago
Read 2 more answers
Provide an appropriate response. the regression line for the given data is = 1.488x + 60.46. determine the residual of a data po
kap26 [50]
Do you have answer choices ?

7 0
3 years ago
The cost of membership in the school kayaking club is a $10.00 fee and $3.00
Luden [163]

Answer:

igwif

Step-by-step explanation:

392e6×0273=2048

3 0
3 years ago
I’ll give you all my love and affection if you help me with this ASAP PLEASE ;)
Zinaida [17]

Answer:

(0,12)

Step-by-step explanation:

Plug 0 into y

7 0
3 years ago
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