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3 years ago

819 ÷ ________ = 8.19 (3 points)

Mathematics

1 answer:

marusya05 [52]3 years ago

8 0

Are those the only options because 819 divided by 100 is 8.19

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F(x) = 17 - 2x<br> Find f(a + 7)

Fudgin [204]

Answer:

-2a + 3

Step-by-step explanation:

We can substitute a + 7 for x:

f(a + 7) = 17 - 2(a+7) = 17 - 2a - 14 = -2a + 3

4 0

3 years ago

Suppose the time it takes a barber to complete a haircuts is uniformly distributed between 8 and 22 minutes, inclusive. Let X =

salantis [7]

Answer:

$P(X>14)= 1-P(X$

And replacing we got:

$P(X>14)= 1- \frac{14-8}{22-8}= 0.5714$

The probability that a randomly selected barber needs at least 14 minutes to complete the haircut is 0.5714

Step-by-step explanation:

We define the random variable of interest as x " time it takes a barber to complete a haircuts" and we know that the distribution for X is given by:

$X \sim Unif (a= 8, b=22)$

And for this case we want to find the following probability:

$P(X>14)$

We can find this probability using the complement rule and the cumulative distribution function given by:

$P(X$

Using this formula we got:

$P(X>14)= 1-P(X$

And replacing we got:

$P(X>14)= 1- \frac{14-8}{22-8}= 0.5714$

The probability that a randomly selected barber needs at least 14 minutes to complete the haircut is 0.5714

6 0

3 years ago

7^(x+4)=-34 solve for x

damaskus [11]

for
x^m=y
that means
$log_x(y)=m$
so

$7^{x+4}=-34$ means

$log_7(-34)=x+4$
minus 4 from both sides
$log_7(-34)-4=x$

6 0

4 years ago

The coffee to go cafe uses 5 gallons of milk per day . how many gallons do they use in 5 weeks?

Zarrin [17]

5 gallons per day
7 days in 1 week
5x7=35
there are 5 weeks
35x5=175
Your answer is 175 gallons

4 0

3 years ago

Jason has $6,700 in his bank account. He withdraws $1,900 from his bank account o pay for rent. Brett books a vacation 3-days la

Yuki888 [10]

Answer:

thers no question

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers