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blondinia [14]
3 years ago
14

Identify the lines that are perpendicular: Line 1: y=4 Line 2: y=1/5x-5 Line 3:y=8 Line 4:y+5=-5(x+1)

Mathematics
1 answer:
stellarik [79]3 years ago
8 0
Answer: Lines 2 and 4 are perpendicular.
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If the ratio of the surface areas of two similar geometrical solids is given by 121:36, what is the
BigorU [14]

Answer:

1331:216

Step-by-step explanation:

Given the ratio of the lengths of two similar solids as a:b

The ratio of the surface areas = a^2:b^2

The ratio of the volume = a^3:b^3

We are given that the ratio of the surface areas of two similar geometrical solids is given by 121:36

Therefore:

a^2:b^2=121:36\\\implies a^2:b^2=11^2:6^2\\\implies a:b=11:6

Since the ratio of the lengths is 11:6

The ratio of their volumes = 11^3:6^3

=1331:216

The ratio of the volume of the two similar geometrical solids is 1331:126.

6 0
3 years ago
Write each expression in exponential form and find its value 2 x 2 x 2 2 ​
Natasha2012 [34]

Answer:

2^{4}

Step-by-step explanation:

8 0
3 years ago
Describe the relationship between the point D(6, 9) and the point A(8, 12) in terms of dilations.
Irina18 [472]

Answer:

one is smaller then the other i think thats it

Step-by-step explanation:

6 0
2 years ago
Someone be as kind as to offer some help?
RideAnS [48]

Answer:

x = 4 and y = 0

Step-by-step explanation:

Using the elimination method:

4(-x + 5y=-4) --> -4x + 20y = -16.

Now we add -4x + 20y = 016 and 4x + 3y = 16. This gives us 23y = 0 or just y =0.

Now we can find x by plugging in y.

-4x + 0 = -16.

Divide by -4 on both sides -> x = 4.

If you want to double check you can plug your values into -4x + 20y = -16.

-4(4) +20(0) = -16.

4 0
3 years ago
Can you help me and give me the snow you got the answer right everything down
ExtremeBDS [4]
1. 2/100 as a percent is 2% and as a decimal it is 0.02

3. 9/10 as a percent is 90% and as a decimal it is 0.9

5. 48% as a decimal is 0.48 and as a fraction is 48/100

7. 0.04 as a percent is 4/100 and as a percent of is 4%

Hope I helped you
6 0
3 years ago
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