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Wewaii [24]
3 years ago
7

Solve the equation. 27x - 6 = 9x - 1

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
5 0
27x-6=9x-1
27x-9x =-1+6
18x = 5
x = 5/18
loris [4]3 years ago
5 0

Answer:

The answer is D

Step-by-step explanation:

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Rectangle ABCD is the same proportion as rectangle EFGH. The perimeter of
qwelly [4]

Answer:

4in

Step-by-step explanation:

3 0
2 years ago
Calculate the value of x(trigonometry)<br> X=29.7<br> X=6.3<br> X=0.2<br> X=14.5
tekilochka [14]

Answer:

5.5369

Step-by-step explanation:

tan(64) = 13/x

2.3478 = 13/x

Multiply both sides by x

2.3478x = 13

Divide both sides by 2.3478

5.5369 = x

6 0
2 years ago
Read 2 more answers
Write the least common multiple of 120 and 80
Olin [163]
The least common multiple would be 240.
120(2)=240 AND
80(3)=240
6 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
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sasho [114]
Answer is 54^2.

since there are triangles in this one, it is easier to do this. all you have to do is make boxes in and since there are angles, outside the lines. like this picture.

the orange is 1
red and dotted is 2
blue is 3
purple is 4(a regular box which should be easy to count.

all you have to do is add up all the boxes within the boundaries.
boundary 1: 12
boundary 2: 18
boundary 3: 6
boundary 4: 36

now when the boundary has a triangle in it (1, 2, & 3) divide the number you got in half or 2.
boundary 1: 6
boundary 2: 9
boundary 3: 3

the ractangle box doesn't not get divided.
boundary 1: 6
boundary 2: 9
boundary 3: 3
boundary 4: 36

add all the numbers you got now for each boundary and that would be your area squared.

6+9+3+36=54^2

so your final answer is 54^2.

i hope this helps you.

3 0
3 years ago
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