2 years ago

20+ POINTS!!!!

Mathematics

1 answer:

azamat2 years ago

6 0

A, b, d. Dilation is NOT <span>an </span><span>isometry</span>

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Does anybody know the answer please.

wariber [46]

Answer:

The sign of each y-coordinate changed.

Step-by-step explanation:

This was a reflection over the x-axis.

If you look at point F, it is (-5, -1) the corresponding point F' is (-5,1). Notice the numerical values of x and y are the same, but the sign of y flipped from negative to positive. The other four points all follow the same pattern.

8 0

3 years ago

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Examine the fraction 3+2i4−2i. Which expression is the first step to simplify the fraction? 3+2i4−2i⋅3−2i3−2i

umka2103 [35]

Answer:

The correct answer is the last option.

Step-by-step explanation:

When you have a fraction with complex numbers, the first step to simplify is to multiply up and down the conjugate of the denominator, this will eliminate the complex part of the denominator, and in this way you can separate the expression in its real and complex part.

For the expression:

$\frac{3 + 2i}{4-2i
}$

The denominator conjugate is 4 + 2i

When multiplied, the denominator is:

$4 ^ 2 -4i ^ 2 = 16 -4 (-1) = 20$

4 0

3 years ago

Hemp help help help help help math math math

Dovator [93]

Answer:

x=25

Step-by-step explanation:

5x-5+ 2x+10 =180

2x-5x = 10+5

3x= 15

x=5

5(5)-5+ 2(5) +10 =180

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2 years ago

State all integer values of x in the interval [0,7] that satisfy the following inequality

Anestetic [448]

Answer:

x>3/2

Step-by-step explanation:

3 0

3 years ago

Students taking a make-up test receive the following grades: 77, 89, 88, 67, 91, 95, 83, 79, 81, and 65. Which grade has a perce

mixas84 [53]

The answer would be 67

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2 years ago