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3 years ago

Mutiply the expression 2 (7n-11)

Mathematics

1 answer:

attashe74 [19]3 years ago

4 0

14n-22 is the answer. Use the distributive property.

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Find 120% of 18. a) 22.5 b) 23 c) 15 d) 21.6

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120% of 18 is =


D) 21.6

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3 years ago

What is the inverse of the function f(x) = 4x + 8?

arlik [135]

To find the inverse of a function, you swap the x and y values. So instead of y=4x+8, it becomes x=4y+8. Now you re-solve for y, and that’s your answer:

x=4y+8
x-8=4y
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It takes Pam 45 minutes to drive to work and 60 minutes to drive home from work. Write the ratio of the time Pam spends driving

PolarNik [594]

60:45, 60 to 45, and 60/45
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3 years ago

Read 2 more answers

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

Philip buys a pizza for $5.99 and is given $14.01 as change.

Alex Ar [27]

Answer:

$14.01 + $5.99 = $20

Step-by-step explanation:

Phillip had 20 dollars before he bought the pizza.

7 0

3 years ago