Answer:
(a) 0.00000221 (b) 4.2 x
Step-by-step explanation:
(a) means you need to move the decimal left (because of the negative) 6 spaces. So you have 2.21 move the decimal 6 spaces left and you end up with 0.00000221
(b) If you have 420,000 and you count 5 spaces from the last number, that leaves the decimal inbetween the 4 and 2 so your answer will be 4.2 x
To calculate ten minus four point three five, you subtract 4.35 from 10. The result of this calculation is 5.65.
To calculate ten minus four point three five, you simply subtract 4.35 from 10. This is a basic math operation, and can be solved on a calculator or by hand. If you are performing the operation by hand, you align the numbers vertically by their decimal points and subtract normally, remembering to carry over any values from the right of the decimal point:
10.00So, ten minus four point three five equals 5.65.
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3.14 cm
B
0.314 cm
C
314 cm
D
31.4 cm
For a circle with a diameter of 10 cm, the circumference would be C = π(10) = 31.4 cm. The correct option is (D) 31.4 cm.
The circumference of a circle can be calculated using the formula C = πd, where C represents the circumference and d represents the diameter of the circle.
We have the diameter of the circle is 10 cm, we can substitute this value into the formula:
C = π * 10 cm
Calculating the circumference using an approximate value of π as 3.14:
C ≈ 3.14 * 10 cm
C ≈ 31.4 cm
Therefore, the circumference of a circle with a diameter of 10 cm is approximately 31.4 cm.
The correct answer is D) 31.4 cm.
To know more about circumference refer here :
brainly.com/question/28757341#
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(9+5+6)(5-6)
(20)(-1)
= -20
I hope that's help:0
cm
m
km
Answer: Option A
The number of weeds is decreasing by a multiplicative rate.
Step-by-step explanation: Took the quiz on edge