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3 years ago

15

Urgent I need help answering this question. Someone please help me, I keep seeing someone type on my questions but they never

get answered. Please help thank you!

2 answers:

devlian [24]3 years ago

6 0

Answer: for B is (5y - 43) • (y - 7)

Taya2010 [7]3 years ago

5 0

Answer:

5y^2−78y+301 hope you understand it

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A drippy faucet waste 36 on of water a day. If there are 35 million such drippy faucets, how much water,in gallons is wasted in

earnstyle [38]

What unit measurement is 36? This equation is impossible, :) I see

4 0

3 years ago

A taxi charges 1.75 plus a fee of 0.75 for each mile traveled the total cost of a ride without a tip is 4.75 how many miles is t

mixas84 [53]

Answer:

4 miles

Step-by-step explanation:

Subtract the initial fee from the final fee. You get 3.00

Divide 3.00 by .75 and you end up with 4, which is the amount of miles traveled.

4 0

3 years ago

How do you do this?PLZ HELP

Alisiya [41]

3(x^2+10x+5)-5(x-k)=
3x^2+30x+15-5x+5k=
3x^2+25x+15+5k

for this to be divisible by x every term must include x or get eliminated

the problematic terms are 15 and 5k
to eliminate them they must equal 0 when added:
15+5k=0
5k=-15
k=-3

so A) -3 is the solution

5 0

4 years ago

The weights of college football players are normally distributed with a mean of 200 pounds and a standard deviation of 50 pounds

Feliz [49]

Answer:

0.3811 = 38.11% probability that he weighs between 170 and 220 pounds.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 200, \sigma = 50$

Find the probability that he weighs between 170 and 220 pounds.

This is the pvalue of Z when X = 220 subtracted by the pvalue of Z when X = 170.

X = 220

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{220 - 200}{50}$

$Z = 0.4$

$Z = 0.4$ has a pvalue of 0.6554

X = 170

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{170 - 200}{50}$

$Z = -0.6$

$Z = -0.6$ has a pvalue of 0.2743

0.6554 - 0.2743 = 0.3811

0.3811 = 38.11% probability that he weighs between 170 and 220 pounds.

6 0

4 years ago

What is the length of AC

Alex777 [14]

Answer:

13

Step-by-step explanation:

count A up to C

6 0

3 years ago