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2 years ago

Find the unit rate.

Mathematics

1 answer:

SIZIF [17.4K]2 years ago

6 0

Answer:

152

Step-by-step explanation:

6840 divided by 45 is 152

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Find the range y=4-x domain =-2,3,5

Wittaler [7]

Answer:

range: {6, 1, -1}

Step-by-step explanation:

y = 4-x

when x = -2, y = 6

when x = 3, y = 1

when x = 5, y = -1

6 0

2 years ago

three softball players wrote down their batting average : amy wrote 12 or 30 , sue wrote .34 , kit wrote 9/21 . who is a better

Maksim231197 [3]

Amy: 12 or 30
Sue: 0.34
Kit: 9/21
Kit is the better hitter.

Hope this helps :^)

5 0

2 years ago

Read 2 more answers

An isotope decays at a rate of -0.0049% per year. Find the half life. (show the work)

cricket20 [7]

Answer:

14,146 years

Step-by-step explanation:

The annual multiplier is (1 -0.0049%) = 0.999951. We want to find the number of times this needs to be multiplied to make the product 1/2.

0.5 = 0.999951^t

log(0.5) = t·log(0.999951)

log(0.5)/log(0.999951) = t ≈ 14,145.514

The half-life is about 14,146 years.

7 0

2 years ago

The numerical value of the variance a. is negative if the mean is negative. b. is always larger than the numerical value of the

Snowcat [4.5K]

Answer:

Step-by-step explanation:

Variance is the sum of squares of all items x from mean. i.e

Variance = $\Sigma (x-xbar)^2$

Being the sum of squares variance can never be negative irrespective of mean being negative.

Std deviation is the square root of variances. This will thus be less than variance if variance >1 other wise std deviation will be bigger than variance.

Hence option d is right.

8 0

2 years ago

Giving brainliest!!<br> pls help asap *easy*

Scrat [10]

Answer:

V ≈ 16.333 in³

Step-by-step explanation:

Formula of the Volume of a Sphere: $\frac{4}{3} \pi r^{2}$

V = $\frac{4}{3}$ × (3.5)²π

V = $\frac{4}{3}$ × 12.25π

V ≈ 16.333 in³

8 0

2 years ago