First, you multiply 2.1 by 3.2, which gives you the answer of 6.72. Then, you multiply 10-2 by 10-4. One rule about multiplying exponents, you just add the exponents. So 10-2 x 10-4 = 10-6. Finally you get the answer of C. 6.72 x 10-6.

7 0

3 years ago

The base of a right circular cylinder has a diameter of 5.00 inches. Sally measured the circumference of the base cylinder and r

LUCKY_DIMON [66]

Answer:

The percent of error in her measurement is 1.3%

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=\pi D$

where

D is the diameter

we have

$D=5\ in$

assume

$\pi=3.14$

substitute

$C=(3.14)(5)=15.7\ in$ ----> This value represent the 100% (theoretical value)

Find the difference between the theoretical value and the measured value

$15.7-15.5=0.2\ in$

Find the percentage by proportion

$15.7/100=0.2/x\\ x=100*0.2/15.7\\ x=1.3\%$

4 0

4 years ago

Jami jogged 1/3 of a mile in 1/6 of an hour. What was her speed in miles per hour?

alexandr1967 [171]

there are 6 1/6 per hour

multiply 1/3 by 6

1/3 * 6 = 6/3 = 2 miles per hour

6 0

3 years ago

If you made $300 one week and had a total of $75 worth of deductions, how much did you actually take home?

UNO [17]

Answer:

$225

Step-by-step explanation:

3 0

3 years ago

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