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skad [1K]
3 years ago
8

Hi guys, I need help on this practice anyone willing to help; list of things to do

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
5 0

Answer:

B. y = x - 2

Step-by-step explanation:

The sale price (y) is $2 less than the original price (x - 2).

To test this out, if a book's original price is $10..

x = 10

Using y = x - 2 and to test out if it works, we'll plug in x = 10 to discover y.

y = 10 - 2

y = 8

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-4.6+5.3 help please thank you are the best
fomenos

Answer:

0.7

Step-by-step explanation:

6 0
3 years ago
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The time it takes a student to walk from the dorm to the chemistry lab follows roughly a Normaldistribution with a mean of 20 mi
creativ13 [48]

Answer:

95.15%

Step-by-step explanation:

We have that the mean (m) is equal to 20, the standard deviation (sd) 3

They ask us for P (x <25)

For this, the first thing is to calculate z, which is given by the following equation:

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We have all these values, replacing we have:

z = (25 - 20) / (3)

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With the normal distribution table (attached), we have that at that value, the probability is:

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6 0
3 years ago
In a football game, the Bobcats scored all touchdowns, which are worth 7 points each. The Crocodiles scored all field goals, whi
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8 0
3 years ago
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Need Help Badly<br>What is the solution
Kamila [148]
Sqrt(1-3x)=x+3
[sqrt(1-3x)]^2=(x+3)^2
1-3x=(x+3)(x+3)
1-3x=x^2+6x+9
-3x=x^2+6x+8
0=x^2+9x+8

The answers are -1 and -8 BUT, we have to plug them back into the original equation to make sure we don't get a negative under the square root sign.

After doing this, we realize that only -1 works, so the answer is x=-1

Sorry that this took forever to answer. I was thinking of a good way to explain this, and if you need any further explanation, message me:)

Best wishes:)


5 0
3 years ago
william will be attending college next year. he thinks that even though the tuition is higher at college A it will cost less ove
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I agree with William because going to an in-state college you could live off campus which can save you tons of money
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3 years ago
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