All categories

3 years ago

Answer the geometry question in the pic and save my life...

Mathematics

1 answer:

Anastasy [175]3 years ago

3 0

Answer:

The answer should be A'(-9,3) B'(12,-6)

Step-by-step explanation:

If you dialate, you multiply every coordinate by 3. -3 x 3= -9. 1 x 3=3. 4 x 3= 12. -2 x 3= -6. So, the last option is correct.

You might be interested in

How do you solve 39 equal to 1 3/10b

elena-s [515]

If 39 = (1 3/10)b, we could simplify this by writing 39 - (13/10)b.

Solve this for b by mult. both terms by (10/13):

(10*39)
----------- = (10/13)(13/10)b. Then b = 30 (answer)
13

5 0

3 years ago

How many cubic feet of soil are needed to fill a raised vegetable bed that measure 12 feet by 10 feet by 9 inches?

otez555 [7]

18 feet 1 feet is equivalent to 12 inches

3 0

3 years ago

The mean height of married American women in their early twenties is 64.5 inches and the standard deviation is 2.5 inches. The m

SSSSS [86.1K]

Answer:

The equation for regression line and predicting a husband's height for married couples in their early 20s

Equation: Y'=33.67+0.54*X'

Step-by-step explanation:

r=0.5

x'=64.5

Sx=2.5

y'=68.5

Sy=2.7

General regression line equation is:

Y'=a+b*X'

so the slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for y' divided by the standard deviation for x'

$b=r*\frac{S_{y}}{S_{x}}\\b=0.5*\frac{2.7}{2.5}\\b=0.54$

The intercept with axis y is the mean of the decreased by the product of the slope and the mean of x

$a=y'-b*x'\\a=68.5-0.54*64.5\\a=33.67$

The equation regression line then is:

Y'=33.67+0.54*X'

4 0

3 years ago

The Value of x in the system of equation at the right is -2 what is the value of a? use elimination to help you find the value.

sammy [17]

2x-4y=-16
ax+4y=6 +
--------------------
2x+ax=-10; for x=-2,
2(-2)+a(-2)=-10
-2a=-10+4
a=-6/-2
a=3

7 0

3 years ago

John has a goal to ride his bike at least 200 miles this summer. John has ridden 12 miles thus far. There are 40 days left in th

Alex Ar [27]

Answer:

4.7 miles per day

Step-by-step explanation:

400-12=188

188÷40

=4.7 miles

7 0

3 years ago