Answer:
D'( -6 , 4).
Step-by-step explanation:
In rotation through 90 degrees from the origin
P(x,y) - P'(-y , x)
D(4 , 6) - D'( -6 , 4).
It's simple
Answer:
Step-by-step explanation:
Sam bought a chocolate. He ate some and leaving 0.75 for Alice.
Alice ate 18.50 grams of chocolate and return the rest to Sam, which was 65% of the original chocolate. How much chocolate did Sam had at the beginning?
Now solve the equation:
0.75x - 18.50 = 0.65x
Combine the like terms:
0.75-0.65x = 18.50
0.1x= 18.50
x = 18.50/0.1
x=185
This shows that Sam had 185 grams of chocolate...
Answer:
846 sq. in.
Step-by-step explanation:
This is surface area. There are 6 faces. Solve each face and then add them up. In this case, first multiply 9 and 12 = 108. 108 adding 108 because there is another side with the same size. Than multiply 9 and 15. 135 times 2. 216 + 270 = 486. Next you multiply 12 and 15. 180 times 2. 486 + 360 = 846
Answer:
scientific notation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
10
. The sign of the exponent will depend on the direction you are moving the decimal.
5×10−1
Step-by-step explanation:
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