Find the approximate area of the shaded region below, consisting of a right triangle with a circle cut out of it. Use 3.14 as an
approximation for pi.
An image shows a right triangle with a circle cut out of it. The legs that make up the right triangle are both 60 meters. The diameter of the circle cut out is 20 meters. All of the triangle is shaded, except where the circle is cut out.
A.544 square meters
B.1,486 square meters
C.3,286 square meters
D.314 square meters
An image shows a right triangle with a circle cut out of it. The legs that make up the right triangle are both 60 meters. The diameter of the circle cut out is 20 meters. All of the triangle is shaded, except where the circle is cut out.
A.544 square meters
B.1,486 square meters
C.3,286 square meters
D.314 square meters
1 answer:
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Answer:
(a) 51,100 kilometers.
(b) meters
Step-by-step explanation:
(a) When converting from scientific notation to standard notation, split the equation.
When solving , begin by calculating
.
= 10,000
Multiply this by '5.11', resulting in:
5.11 × 10000 = 51,100 kilometers.
(b) When converting from standard form to scientific notation, count the number of zeros until the first non-zero digit. Therefore:
In 0.00000768, the '7' is placed 6 digits from the decimal. Recall that for decimals, the exponent is negative. Therefore in scientific notation, this equals: