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hodyreva [135]
3 years ago
9

[GEOMTRY]~Which of the following steps would be more useful in proving that a circle with a radius of 4 inches is similar to a c

ircle with a radius of 3 feet?
A) dilate the smaller circle by a sale factor of 4/3.

B) dilate the smaller circle by a scale factor of 9.

C) rotate the larger circle 270º.

D) reflect the smaller circle in its diameter.
Mathematics
1 answer:
svp [43]3 years ago
6 0

Answer:

B) dilate the smaller circle by a scale factor of 9

Step-by-step explanation:

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Find the markup and the cost of the following item. Round answers to the nearest cent.
scoray [572]

Answer:

1st question: M=22.62 while C=75.38

2nd question: M=.22 while C=1.97

Step-by-step explanation:

If a mirror costing x dollars is marked up 30%, then we have to find x such that 30%x+x is 98 dollars.

We are solving:

.3x+x=98

Combine like terms:

1.3x=98

Divide both sides by 1.3:

x=75.38

M=98-75.38=22.62

C=75.38

So M=22.62 while C=75.38.

If ream of paper cost x and is marked up 11%, then we have to find x such that 11%x+x is 2.19.

We are solving:

.11x+x=2.19

1.11x=2.19

x=1 97

M=2.19-1.97=.22

So M=.22 while C=1.97

8 0
3 years ago
What is an equation for this line?
topjm [15]
The equation for the line is
Y=1x+0 or just Y=1x
4 0
2 years ago
If f(x)=x^4+6, g(x)=x-2 and h(x)= sqrt (x), then f(g(h(x)))=
patriot [66]

Answer:

x^2 + 4x * (3 - sqrt(x)) - 2(5 + sqrt(x))

Step-by-step explanation:

Firstly let us split this up, we need to first work out what g(h(x)) is:

h(x) = Sqrt(x) so g(h(x)) = g(sqrt(x)) = sqrt(x) - 2

Now to work out f(g(h(x))) = f(sqrt(x) - 2) = (sqrt(x) - 2)^4 + 6

= (sqrt(x) - 2) * (sqrt(x) - 2) * (sqrt(x) - 2) * (sqrt(x) - 2) - 6

= (x - 2 * sqrt(x) + 4) * (x - 2 * sqrt(x) + 4) - 6

= x^2 - 2x * sqrt(x) + 4x - 2x * sqrt(x) + 4x - 8 * sqrt(x) + 4x - 8 * sqrt(x) + 16 - 6

= x^2 - 4x * sqrt(x)  + 12x - 16 * sqrt(x) + 10

= x^2 + 4x * (3 - sqrt(x)) - 2(5 + sqrt(x))

3 0
3 years ago
Agent
LiRa [457]

Answer: -6 Your welcome

Step-by-step explanation: I just did it and got a 100

6 0
3 years ago
Read 2 more answers
Find the value of x.
padilas [110]
To find your missing angle:
180-126 = 54
so 9x must equal 54
54= 9x
6 = x
3 0
3 years ago
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