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Verizon [17]
3 years ago
10

PleaseI really need help on this please

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
4 0

Answer:

Step-by-step explanation:

mamaluj [8]3 years ago
3 0

Answer:

Step-by-step explanation:

the anwser to number 7 is d or (x2-4) (x2+4)

by the way try using the app called Photo Math i use it for my test it works greatyou should try it some day.

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45x=180;x=4<br><br> a. yes<br><br> b. no,x=6<br><br> c. no,x=2
sveta [45]
I hope this helps you

5 0
3 years ago
amy is building a house. the basement floor is at -15 feet. the roof of the house is above the ground 25 feet. express the compa
Deffense [45]

Answer:  375 sq.ft

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If a+b+b =24 and b-a =4 what is a?​
Lyrx [107]

Answer:

a = 5 1/3

Step-by-step explanation:

a+b+b = 24

a + 2b = 24

b-a =4

a = b - 4

b - 4 + 2b = 24

3b = 24 + 4

b =28/3

substitute this in a = b - 4

a = 28/3 - 4

a = 28/3 - 12/3

a = 16/3

a = 5 1/3

3 0
3 years ago
Read 2 more answers
I don’t understand this question. Can anyone help? I need answers ASAP. Thanks for all the help
zavuch27 [327]

There's some unknown (but derivable) system of equations being modeled by the two lines in the given graph. (But we don't care what equations make up these lines.)

There's no solution to this particular system because the two lines are parallel.

How do we know they're parallel? Parallel lines have the same slope, and we can easily calculate the slope of these lines.

The line on the left passes through the points (-1, 0) and (0, -2), so it has slope

(-2 - 0)/(0 - (-1)) = -2/1 = -2

The line on the right passes through (0, 2) and (1, 0), so its slope is

(0 - 2)/(1 - 0) = -2/1 = -2

The slopes are equal, so the lines are parallel.

Why does this mean there is no solution? Graphically, a solution to the system is represented by an intersection of the lines. Parallel lines never intersect, so there is no solution.

7 0
3 years ago
Jamar works at Jay's Jeweler. He earns $385 a week plus commission. Last week his sales totaled $1,680. If his commission is 25%
-BARSIC- [3]
$805

25% of $1,680 is $420 .
$420+$385= $805
4 0
2 years ago
Read 2 more answers
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