So according to the problem, the tax should be calculated using the bill.

So 5.5% equals to 0.055.

Then multiply 0.055 and 74.98.

Thus resulting in 4.1239 and when rounded, the answer should be 4.12, C

4 0

3 years ago

Read 2 more answers

On a map, 1 in. represents 12 mi. Two cities are 6 1/2in. apart on the map.

olasank [31]

1 inch = 12 miles

so 6 1/2 inches (or 6.5 inches) = 6.5 * 12 = 78 miles <===

7 0

3 years ago

Read 2 more answers

Suppose that the ages of members in a large billiards league have a known standard deviation of σ = 12 σ=12sigma, equals, 12 yea

asambeis [7]

Answer:

$n\geq 23$

Step-by-step explanation:

-For a known standard deviation, the sample size for a desired margin of error is calculated using the formula:

$n\geq (\frac{z\sigma}{ME})^2$

Where:

$\sigma$ is the standard deviation
$ME$ is the desired margin of error.

We substitute our given values to calculate the sample size:

$n\geq (\frac{z\sigma}{ME})^2\\\\\geq (\frac{1.96\times 12}{5})^2\\\\\geq 22.13\approx23$

Hence, the smallest desired sample size is 23

3 0

2 years ago

Proof true or false: For all integers a,b,and c,if ab|c then a|c and b|c

olya-2409 [2.1K]

Answer with explanation:

It is given that for three integers , a, b and c, if

$\frac{ab}{c}\rightarrow then, \frac{a}{c} \text{or} \frac{b}{c}$

Since , a b is divisible by c , following are the possibilities

1.→ a and b are prime integers .Then , c will be prime number either equal to a or b.

2.→a and b are not prime integers ,then any of the factors of a or b will be equal to c.For example:

⇒a=m × n

b=p × q× c

or,

⇒a=u×v×c

b=s×t

So, whatever the integral values taken by a, and b, if $\frac{ab}{c}$ then either of $\frac{a}{c} \text{or} \frac{b}{c}$ is true.

4 0

2 years ago