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Sophie [7]
3 years ago
12

Find the solution for quadratic x^2-7x+10=-2 leave your answers as fractions ( no decimals)

Mathematics
1 answer:
Zepler [3.9K]3 years ago
4 0

Answer:

x=3 x=4

Step-by-step explanation:

add 2 to both sides

x^2-7x+12=0

(x-3)(x-4)=0

x=3 x=4

i just factored it out, there are more ways of doing it probably

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7 0
4 years ago
5.Solve the quadratic equation.
Dafna1 [17]

Answer:

x=5 twice

Step-by-step explanation:

x^2-10x+25=0

multiply the coefficient of x^2 and the last term

1X25=25

find two numbers you can multiply to get 25 and add to get -10

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5 0
3 years ago
What is the proportion of 2/5 = 8/x
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4 0
3 years ago
Solve #1 pls, I need to find the shortest side, median side, and longest side
Lisa [10]

Answer:

Shortest side = 39 cm.

Median side = 65 cm.

Longest side = 91 cm.

Step-by-step explanation:

The perimeter in total is 195 cm. The ratio of the sides are 3 : 5 : 7.

First, find how much parts there are as a whole, by combining the ratios:

3 + 5 + 7 = 15 parts.

Divide the total of parts from the total measurement:

195/15 = 13

Each part has the measurement of 13 cm.

1 part = 13 cm.

Use the following ratio to solve for each of the sides:

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3 x 13 = 39

Shortest side = 39 cm.

Median side: 5

5 x 13 = 65

Median side = 65 cm.

Longest side: 7

7 x 13 = 91

Longest side = 91 cm.

Check. Combine all side measurements together. They should equal 195:

39 + 65 + 91 = 195

(39 + 65) + 91 = 195

(104) + 91 = 195

195 = 195 (True).

~

8 0
4 years ago
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babunello [35]
.7

because you need to get the original unit price which is 0.7 then multiply that by 1 and get your answer
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