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soldier1979 [14.2K]
3 years ago
7

Find the percent of increase or decrease 55 mph to 70 mph

Mathematics
1 answer:
bearhunter [10]3 years ago
5 0

Answer:

27.3% rounded

Step-by-step explanation:

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1)Circle 1 is centered at (−4, 5)(−4, 5) and has a radius of 2 centimeters. Circle 2 is centered at (2, 1)(2, 1) and has a radiu
galina1969 [7]

Figures of same shape and size are similar .Two circles  C1&C2 will be similar.

Circle 1 has a center of (-4,5) and circle 2 has a center of (2,1) .The x of the center is having the translation x+6 and the y  is having a translation of y-4.The center of the circle is dilated by 3 units.

The circles are similar because you can translate Circle 1 using the transformation rule (x+6,y-4 ) and then dilate it using a scale factor of 3.

2) Area of sector = \pi.r^{2}\alpha÷360.

Where α is the angle made at center.

Area of given sector= π(12)(12)(60)÷360 =24π.

8 0
3 years ago
Two possible solutions of are -7 and 1. Which statement is true?
quester [9]

We can plug those values into the equation, and if the answer is incorrect, we'll know if either one is extraneous.

√11 - 2(-7) = √(-7)^2 + 4(-7) + 4

√25 = √25

5 = 5

The first solution, -7, makes the equation true, and so it is not extraneous.

√11 - 2(1) = √(1)^2 + 4(1) + 4

√9 = √9

3 = 3

The second solution, 1, makes the equation true, and so it is also not extraneous.

<h3>The correct option is D, neither solution is extraneous. </h3>
4 0
3 years ago
Amelia uses 66 patches of fabric per square foot to make a blanket. How many patches of fabric will she need to make a blanket t
poizon [28]
The answer is 10920. 720720/66=10920
3 0
3 years ago
How do you simplify (x^2+4x-1)-(x)
nadya68 [22]

Answer:

Step-by-step explanation:

x² + 4x - 1 - x =x² + 4x -x - 1  { bring the like terms together and add}

                     = x² + 3x - 1

6 0
3 years ago
Reduce 720/1080 little cunfused
Veronika [31]
To reduce a fraction, divide the numerator and the denominator equally until they reach the simplest whole number possible. 

In this case, the numerator (720) and the denominator (1080) can both be divided by 360 to get 2/3, our reduced fraction. 

8 0
3 years ago
Read 2 more answers
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