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Trava [24]
2 years ago
7

Unit 7 polynomials and factoring homework 7 factoring trinomials answer key

Mathematics
1 answer:
ra1l [238]2 years ago
7 0
What is this supposed to be ?
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Mr. Jackson orders lunches to be delivered to his workplace for himself and some
svetlana [45]

Answer: $34.75

Step-by-step explanation:

n= 6.25x+3.50

n=6.25(5)+3.50

n=31.25+3.50

n=34.75

4 0
3 years ago
During the summer, the height of the water in the pool decreased by 5 inches each week due to evaporation. What is the change in
rjkz [21]

Answer:

40 inches

Step-by-step explanation:

We know that the height of water in a pool decreased 5 inches per week.

This means that we can form the equation y=-5x, since the amount of water remaining is proportionate to the amount of weeks that have passed.

We know x=8, since we need to find the change for 8 weeks.

y = -5\cdot 8

-5 \cdot 8 = -40

y=-40

The change will be the absolute value of -40, which just makes it positive, so 40.

Hope this helped!

8 0
3 years ago
Read 2 more answers
3.4 in word form and expanded form
bagirrra123 [75]
<span><span><u>Answer</u>
3.4 in words is: Three and four tenths
3.4 in expanded form 3+4/10

</span><span><u>Explanation</u>
Decimal points are fractions whose denominator is 10 or a power of 10. To write a decimal point in words we must be able to identify the place value of every digit.
3.4
3 is a whole number and its place value is ones and the place value of 4 is tenth.
So, 3.4 in words is: Three and four tenths
3.4 in expanded form 3+4/10</span></span>
6 0
3 years ago
Guests at a Beaumont hotel stay for an average of 9 days with a standard deviation of 2.4 days. Assume that the length of stay i
Assoli18 [71]

Answer:

778

Step-by-step explanation:

We have the length of stay as X

X~N (9,(2.4))

The sample is given as n = 1000

P(7<x<14) is what we are trying to get

P(7-9/2.4 < x-9/2.4 < 14-9/2.4)

= P(-0.83<z<2.08)

P(z<2.08)-p(z<-0.83)

When we go to the z table,

0.981-0.0203

= 0.778

0.778x1000

= 778

So in conclusion, 778 of these guests can be expected to stay between 7 and 14 days.

3 0
3 years ago
50(x-60) help me or i'll FAIL
jok3333 [9.3K]

Answer:

50x - 3000

Step-by-step explanation:

Use the distributive property

50x - 3000

6 0
3 years ago
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