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fgiga [73]
3 years ago
13

Mrs. Carothers is considering reserving a room at the

Mathematics
1 answer:
musickatia [10]3 years ago
6 0
65 percent as a fraction is 65/100  as a decimal is 0.65
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Solve for x.<br> 2x² +21x-61 = (x+7)²<br><br> Please
Ymorist [56]

Answer:

x = \frac{-7 +\sqrt{489} }{2}

x = \frac{-7 - \sqrt{489} }{2}

Step-by-step explanation:

2x² +21x-61 = (x+7)²

expand

2x² + 21x - 61 = x² + 14x +49

move everything to one side

x² + 7x - 12 = 0

use quadratic formula

x = \frac{-b +- \sqrt{b^{2}-4ac } }{2a}

plug in the values

x = \frac{-7 +- \sqrt{7^{2}-4(1)(-110) } }{2(1)}

solve

x = \frac{-7 +- \sqrt{49-4(1)(-110) } }{2}

x = \frac{-7 +- \sqrt{49 + 440 } }{2}

x = \frac{-7 +- \sqrt{489} }{2}

7 0
2 years ago
Read 2 more answers
Point e is located at -5,2 point m is the reflection of point e what is the distance between e and m
nataly862011 [7]

Answer:

the distance is 10

Step-by-step explanation:

-5,2 to 0,0 is 5

and the refection of -5,2 is 5,2

5,2 to 0,0. is also 5

5+5=10

4 0
3 years ago
Can someone teach me how to solve this please
Alexeev081 [22]
Multiply it all together
7 0
3 years ago
Class 6 MATHS is this correct? ​
Rashid [163]

Answer:

yes ur right

Step-by-step explanation:

6 0
2 years ago
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What is negative 2/7 + 1/4 =
horrorfan [7]

Answer:

-0.03571428571

Step-by-step explanation:

7 0
2 years ago
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