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3 years ago

Consider reflection of JKL what line of reflection maps point L to point L at (-2,3)

Mathematics

1 answer:

yawa3891 [41]3 years ago

3 0

It’s y-axis for the first answer and the other one it’s

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Help me please i dont understand

kipiarov [429]

Answer:

C=75.36

A=452.16

Step-by-step explanation:

C=2x3.14xr

$2$ × $\pi$ × $12=75.36$

A=3.14× $r^{2}$

3.14x12x12=452.16

5 0

3 years ago

The length of each side of an equilateral triangle is increased by 20%, resulting in triangle ABC. If the length of each side of

kompoz [17]

Answer: Area of ΔABC is 2.25x the area of ΔDEF.

Step-by-step explanation: Because equilateral triangle has 3 equal sides, area is calculated as

$A=\frac{\sqrt{3} }{4} a^{2}$

with a as side of the triangle.

Triangle ABC is 20% bigger than the original, which means its side (a₁) measures, compared to the original:

a₁ = 1.2a

Then, its area is

$A_{1}=\frac{\sqrt{3} }{4}(1.2a)^{2}$

$A_{1}=\frac{\sqrt{3} }{4}1.44a^{2}$

Triangle DEF is 20% smaller than the original, which means its side is:

a₂ = 0.8a

So, area is

$A_{2}=\frac{\sqrt{3} }{4} (0.8a)^{2}$

$A_{2}=\frac{\sqrt{3} }{4} 0.64a^{2}$

Now, comparing areas:

$\frac{A_{1}}{A_{2}}= (\frac{\sqrt{3}.1.44a^{2} }{4})(\frac{4}{\sqrt{3}.0.64a^{2} } )$

$\frac{A_{1}}{A_{2}} =$ 2.25

The area of ΔABC is 2.25x greater than the area of ΔDEF.

7 0

2 years ago

James estimated the total cost of groceries to be $50.

Lilit [14]

The answer is 30%.... because 50/65 is .3

5 0

3 years ago

Read 2 more answers

Identify the range of the function shown in the graph. help

amm1812

Answer:

-5 ≤ y ≤ 5

Step-by-step explanation:

maximum y value is 5

minimum y value is -5

-5 ≤ y ≤ 5

5 0

2 years ago

Is 4 to 7 the same as 7 to 4 explain why it why not

tino4ka555 [31]

It’s not the same because if you simplify them there going to end up looking different (the answers) And they get a whole different do you denominator a numerator

6 0

3 years ago