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Vitek1552 [10]
3 years ago
7

Solve The Quadratic Equation by the Square Root Method. (x - 2)^2-1=0

Mathematics
1 answer:
agasfer [191]3 years ago
6 0
Download Cymath to get the answer
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Currently, the sum of the ages of Yumi, Rana and Victoria is 42 years. Four years ago, the sum of the ages of Rana and Victoria
Setler [38]
Y + R + V = 42
but 4 YEARS AGO : (R-4) +(V-4) = Y

Replace Y in the 1st equation by:  (R-4) +(V-4)

(R-4) +(V-4) + R + V = 42

2R - 2V - 8 = 42;  2R -2V  = 50, or R+V=25
IF R+V =25 AND Y + R +V = 42, then Y + 25 = 42 and Y =17

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3 years ago
Evaluate the expression: 0.5f - 2.3g where f = 12 and g = 2
m_a_m_a [10]

Answer:

1.4

Step-by-step explanation:

0.5f-2.3g where f=12 and g=2

substitute 12 in for f and 2 in for g and solve

0.5(12)-2.3(2)

6-4.6=1.4

4 0
3 years ago
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Ms. Federman graded 5 papers in 40 minutes. At this rate, how many minutes will it take her to grade 30 papers?
Ksivusya [100]

Answer:

240 minutes

Step-by-step explanation:

If it's 40 minutes for just 5 papers, we need to figure how many minutes it would take to grade just 1. So you have to divide 40 by 5 which is 8. Then 8 time 30 which is 240.

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3 years ago
Find the value of x <br>a.2 <br>b.5<br>c.2.5<br>d.4​
nikdorinn [45]
I should say 5 is the most clearest answer to me
6 0
3 years ago
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I traveled 117 miles in 2.25 hours. What was my average speed? How would I solve this ?
LenKa [72]
117 miles in 2.25 hours

Divide both numbers by 2.25

52 miles per hour

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3 years ago
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