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3 years ago

Triangle FGH is reflected across a vertical line to produce ABC. Which statement is true

Mathematics

1 answer:

nadezda [96]3 years ago

5 0

Answer:

answer is a

Step-by-step explanation:

answer would be a because a reflection does not change the size or shape of any figure

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Help me please and thank you!

mamaluj [8]

7^6 is the correct answer

8 0

3 years ago

Assume there are 365 days in a year.

Dahasolnce [82]

The chance of student 1's birthday being individual is 365/365 or 100%.
Then the chance of student 2's birthday being different is 364/365.
Then it's narrowed down to 363/365 for student 3 and so on until you get all 10 students.
If you multiply all these values together, the probability would come out at around 0.88305182223 or 0.88.

To get all the same birthday you'd have to the chance of one birthday, 1/365 and multiply this by itself 10 times. This will produce a very tiny number. In standard form this would be 2.3827x10'-26 or in normal terms: 0.23827109210000000000000000, so very small.

4 0

3 years ago

In a circle, area and circumference can be found using the formulas A=(pi)r^2 and C=2(pi)r, respectively, Write a formula for A

AURORKA [14]

Answer:

$A = \dfrac{C^2}{4\pi}$

Step-by-step explanation:

Given that

Area of a circle $A=\pi r^2$

Circumference of the circle $C = 2 \pi r$

Let us re-write the equation of area of circle:

$A=\pi r^2$

$A = \pi \times r \times r$

Multiplying and dividing with 2:

$A = \dfrac{2\pi r}{2} \times r\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C}{2} \times r\\\text{Multiplying and dividing by } 2\pi:\\\Rightarrow A = \dfrac{C}{2} \times \dfrac{2\pi r}{2\pi}\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C \times C}{4 \pi}\\\Rightarrow A = \dfrac{C^2}{4 \pi}$

Hence, A in terms of C can be represented as:

$A = \dfrac{C^2}{4\pi}$

4 0

3 years ago

There are 5 green marbles, 4 red marbles, 3 blue marbles and 3 yellow marbles in a bag. Bryan select's a marble at random. Deter

Taya2010 [7]

Answer:

1/3

Step-by-step explanation:

(5 + 4 + 3 + 3) x 2 = 30

Multiplied by two because two marbles are being picked.

10/30 = 1/3

3 0

3 years ago

How much will have to deposit into an account that pays 5.25% simple interest today, in order to earn $345.45 interest in seven

Ann [662]

To earn $345.45 simple interest in 7 years, you have to invest $940.

Step-by-step explanation:

Step 1:

Given details are Simple Interest Rate (R) = 5.25%, Simple Interest (SI) = $345.45, Time (T) = 7 years

Step 2:

Use the above details to find principal using the formula for Simple Interest (SI) = PRT/100

⇒ 345.45 = (P × 5.25 × 7)/100

⇒ 34545 = 36.75 P

⇒ P = $940

3 0

3 years ago