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3 years ago

Evaluate the expression for k = 2. 4k2 =

Mathematics

1 answer:

Ksivusya [100]3 years ago

5 0

Answer:

Step-by-step explanation:

4*2*2

8*2

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Marshall can read 201 page of a book in 3 hours. What is the unit rate in this situation? A 100 pages in 1 hour B 134 pages in 2

9966 [12]

Answer:

67 pages in 1 hour

Step-by-step explanation:

A "unit rate" is a rate expressed with "one unit" in the denominator:

(201 pages)/(3 hours) = (201/3) pages/hour = (67 pages)/(1 hour)

Often, the unit of interest is a time unit. Here, it is 1 hour.

8 0

3 years ago

Find x, if 1/4 of x is 15

Yuliya22 [10]

Answer:

x = 60

Step-by-step explanation:

Given

$\frac{1}{4}$ x = 15

Multiply both sides by 4 to clear the fraction

x = 4 × 15 = 60

4 0

3 years ago

19/2 - 11/2 as an improper fraction

rjkz [21]

Answer:9 1/2 and 5 1/2

I hope that’s what your looking for

8 0

3 years ago

Suppose Clay, a grocery store owner, is monitoring the rate at which customers enter his store. After watching customers enter f

Kitty [74]

Answer:

70th percentile for the amount of time between customers entering is 30.10

Step-by-step explanation:

given data

mean = 25

to find out

What is the 70th percentile for the amount of time between customers entering Clay's store

solution

we know that here mean is

mean = $\frac{1}{\lambda}$ ..................1

so here 25 = $\frac{1}{\lambda}$

and we consider time value corresponding to 70th percentile = x

so we can say

P(X < x) = 1 - $e^{- \lambda *x}$

P(X < x) = 70 %

1 - $e^{\frac{-x}{25}}$ = 70 %

1 - $e^{\frac{-x}{25} }$ = 0.70

$e^{\frac{- x}{25} }$ = 0.30

take ln both side

$\frac{-x}{25}$ = ln 0.30

$\frac{x}{25}$ = 1.203973

x = 30.10

70th percentile for the amount of time between customers entering is 30.10

3 0

3 years ago

I need help with this question <br>A (3, -1)<br>B (3,1)<br>C (-3, -1)<br>D (1, 3)

scoray [572]

The answer is B (3, 1)

8 0

3 years ago

Read 2 more answers