3 years ago

All books in a store are being discounted by 30%

1 answer:

8 0

Part A: 0.7(x)

Part B: 8.96/0.7 ---> (You can solve this by yourself)

For getting the answer, you can assume the regular price of the book is x. Then, the sale price would be x-0.3x, which is 0.7x

For part B, the price is 0.7 of the original. Dividing the number by 0.7 gets you the original price

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A square has side lengths of 7 inches. Find the length of the square’s diagonal.

lisabon 2012 [21]

Since the side lengths of the square is seven inches, the legs of the triangle to find the diagonal will be 7 inches as well. Since we have the two legs to find the hypotenuse which is equal to the square’s diagonal, we can find the diagonal by squaring the two legs and adding them together, then finding the square root of the answer.
7•7=49
7•7=49
49+49= 98
Now let’s find the square root of 98. I usually go to the hundredths place since I know 98 doesn’t have a perfect square.
9.9•9.9= 98.01 (the hundredths place rounded to that)
So the length of the square’s diagonal is about 9.9 inches.

7 0

3 years ago

Can someone help me

Roman55 [17]

Answer: D) Reflection across the y-axis; $270^{\circ}$ counterclockwise rotation about the origin