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erastova [34]
2 years ago
11

Solve

Mathematics
1 answer:
Natalija [7]2 years ago
4 0

Step-by-step explanation:

a)

W = 200R + 5900

now, we want to transform this, so we get R = ...

W - 5900 = 200R

R = (W - 5900)/200

b)

R = (8200 - 5900)/200 = 2300/200 = 23/2 = 11.5

there were 11.5 hours of overtime.

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yawa3891 [41]

Answer:

The amount depositied is less than or equal to the amount of money in his wallet.    

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Find the discriminant and the number of real roots for this equation.
Margaret [11]

Our discriminant is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Step-by-step explanation:

we need to find the discriminant and the number of real roots for the following equation:

4x^2 + 12x + 9 = 0

The discriminant is found by using square root part of quadratic formula:

b^2-4ac

where b =12, a=4 and c=9

Putting values:

=b^2-4ac\\=(12)^2-4(4)(9)\\=144-144\\=0

To find out the number of real roots using discriminant we have following rules:

  • if discriminant b^2-4ac >0 then 2 real roots
  • if discriminant b^2-4ac =0 then 1 real root
  • if discriminant b^2-4ac <0 then no real roots

Since our discriminant b^2-4ac is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Keywords: discriminant

Learn more about discriminant at:

  • brainly.com/question/8196933
  • brainly.com/question/9328925
  • brainly.com/question/4853862

#learnwithBrainly

6 0
3 years ago
CALCULATE THE TOTAL SURFACE AREA OF A CONE OF RADIUS 21CM AND HEIGHT 10CM
viva [34]

Answer:

2919.9455657092 centimeters^2

Step-by-step explanation:

6 0
3 years ago
COLLEGE Troy's grandfather gave him $700 to start his college savings account. Troy's grandfather also gives him $40 each month
eduard

Answer:

m=700+40x+50x-200

Step-by-step explanation:

m= amount of money in troy's account

x= amount of months elapsed

3 0
3 years ago
Can someone plsss help me in this I don't get it. <br><br><br>​
Vilka [71]

The answer is 1/3

A(2;0)

B(0;-6)

M= y2-y1/x2-x1

M= 0-2/-6-0

M= -2/-6

M= 1/3

8 0
2 years ago
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