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stepladder [879]
3 years ago
6

can someone please help me with this question!!

Mathematics
1 answer:
valkas [14]3 years ago
7 0

Answer:

B' (-4, -4)

Step-by-step explanation:

When you dilate from the origin, you multiply the coordinate points by the scale factor.

B (-1, -1) × 4 = B' (-4, -4)

I hope this helps :))

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In a two digit number, the tens digit is 2 less than the units digit multiplied by three. The reversed number is half the origin
Papessa [141]

Answer:

73

Step-by-step explanation:

Original number: XY

x = 3y - 2

10y + x = (10x + y) / 2 + 1/2

substitution: 10y + 3y - 2 = 13y - 2 = (10 * (3y - 2) + y) / 2 + 1/2

* 2 both sides and simplify: 26y - 4 = 31y - 19

31y - 26y = -4 + 19

5y = 15

y = 3

x = 7

Original number: 73

8 0
2 years ago
Incorrect
GaryK [48]

Answer:

m is the right answer

Step-by-step explanation:

no step hope yu mark me as brainliest

7 0
3 years ago
Find the measure of angle 1
Karo-lina-s [1.5K]

Answer:

123

Step-by-step explanation:

180-57=123

OK OK ok

6 0
3 years ago
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Adult male heights are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. The average basketbal
Marizza181 [45]
Z = (x - mean) / SD = (79 - 70) / 3 = 3 
<span>P (Z > 3)? = 1 - F (z) = 1 - F (3) = 0.00135</span>
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Consider the point P = (4,-1) and the line L, given by the equation y=2x+3.
3241004551 [841]

Answer:

A. y=2x-9

B. y=-\frac{1}{2}x+1

Step-by-step explanation:

A. Parallel lines have the same slope. That means the line y=2x+3 has the same slope as any line parallel to it. So the slope is 2.

Using m=2, substitute it and (4,-1) into the point slope form and simplify to find the y-intercept.

y-y_1 = m(x-x_1)\\y--1=2(x-4)\\y+1=2(x-4)\\y+1=2x-8\\y=2x-9

B. Perpendicular lines have slopes which are negative reciprocals of each other. The slope of the line y=2x+3 is 2. The slope perpendicular to it is -1/2.

Using m=-1/2, substitute it and (4,-1) into the point slope form and simplify to find the y-intercept.

y-y_1 = m(x-x_1)\\y--1=-\frac{1}{2}(x-4)\\y+1=-\frac{1}{2}(x-4)\\y+1=-\frac{1}{2}x+2\\y=-\frac{1}{2}x+1

6 0
3 years ago
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