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Nana76 [90]
3 years ago
5

Is y+3=x+6 a direct variation

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0
Nevermind did not mean to answer going t type
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Select the expression that has a value of 4
Harrizon [31]

Answer:

The answer is letter D.

Step-by-step explanation:

320/80

=4

4 0
2 years ago
Which equation is a point slope form of the equation of this line? (-2,1). (1,7)
Lilit [14]
Hello : 
answer : <span>D. (Y-1)=2(x+2)
because : 
if x=1  ... y =7
if : x= -2   .... y= 1 
the slope is :    (1-7)/(-2-1) = -6/-3=2</span>
3 0
3 years ago
A train leaves San Diego at 1:00 pm. A second train leaves the same city in the same direction at 3:00 pm. The second train trav
Soloha48 [4]

Answer:

The speed of the first train is 45 mph and the speed of the second train is 75 mph

Step-by-step explanation:

Let x represent the speed of the first train in mph. Since the second train, is 30 mph faster then the first, therefore the speed of the second train is (x + 30).

The first train leaves at 1:00 pm, therefore at 6:00 pm, the time taken is 5 hours. Therefore the distance covered by the first train at 6:00 pm = x mph * 5 hours = 5x miles

The second train leaves at 3:00 pm, therefore at 6:00 pm, the time taken is 3 hours. Therefore the distance covered by the second train at 6:00 pm = (x + 30) mph * 3 hours = (3x + 90) miles

Since the second train overtakes the first at 6:00 pm, hence:

3x + 90 = 5x

2x = 90

x = 45

Therefore the speed of the first train is 45 mph and the speed of the second train is 75 mph (45 mph + 30 mph).

7 0
3 years ago
What are the factors of the expression x^2+x-20?
tatyana61 [14]

Answer:

(x-4)(x+5)

Step-by-step explanation:

Find 2 numbers knowing sum (1) and product (-20). To find them, factor pairs of (-20) --> (-2,10) (-4,5). This sum is 1=b. Then, these 2 numbers are: - 4 and 5. Y=(x-4) (x+5). Hope this helped :)

3 0
3 years ago
If you answer this i will give you the BRAINLIEST Pls answer Asap
Eva8 [605]

Answer:

You know that negative 3 1/2 is the lowest number so you would put that first. The greatest number would be the coldest in Celsius, and 1/20 would be the last question (the sea level) if calculations are correct, you would get full credit.

5 0
2 years ago
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