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EleoNora [17]
3 years ago
13

12. The temperature was –3° C last night. It is now 4° C. What was the change in temperature?

Mathematics
2 answers:
aniked [119]3 years ago
6 0

Answer:

7

Step-by-step explanation:

-3 + 3 = 0

0 + 4 = 4

4 + 3 = 7

djyliett [7]3 years ago
6 0

Answer:

7^\circ\text{C}

Step-by-step explanation:

Calculate second temperature minus the first one.

4 - (-3) = 4 + 3 = 7

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A line has a slope of -2/3 and passes through the point (-3,8). What is the equation of the line?
LiRa [457]

Answer:

Step-by-step explanation:

We'll use the standard equation y=mx+b to solve this problem. m is the slope of the line and b is the y intercept.

We know the slope, but we have to solve for the y intercept. To do this (I mean solve for 'b'), we need to know the slope, x value, and y value. We know the slope (-2/3), x= -3, and y=8. Let's plug this into y=mx+b and solve for b.

y=mx+b\\8=-\frac{2}{3}*-3 +b\\8=2+b\\b=8-2\\b=6

Let's plug all of this back into the first equation y=mx+b.

y=mx+b\\y=-\frac{2}{3}x+6

That's the answer to this problem.

I hope this helps.

7 0
3 years ago
Read 2 more answers
Using a Line to Find a Point-Slope Equation and the Equivalent Function A coordinate grid with a line passing through the points
RoseWind [281]

Answer:

y = x/4 -1/2

Step-by-step explanation:

given coordinates : ( -2, -1 ) and ( 2 , 0 )

gradient = y2 - y1 / x2 - x1

               = 0 - -1 / 2 - -2

               = 1/4

equation of line:

y - y1 = m( x - x1 )

y - 0 = 1/4 ( x - 2 )

y = x/4 -1/2

the line shown below to confirm:

5 0
2 years ago
Read 2 more answers
Is 5768 divisible by 2
Alexandra [31]
Yes it is divisible by 2. The answer would be 2884.
Thank you
4 0
3 years ago
Read 2 more answers
Can someone help me with this please? Thank you!
Finger [1]

Answer:

528 cm²

Step-by-step explanation:

First I would calculate the area of the side rectangles:

20 x 9 = 180 cm²

There are two identical rectangles on both sides so i would x2

180 x 2 = 360 cm²

The area of the middle rectangle:

6 x 20 = 120 cm²

The area of the triangles:

Area of a triangle = (Base x Height)/2

8 x 6 = 48

48 ÷ 2 = 24

There are two identical triangles on the bottom and the top so x2

24 x 2 = 48

Now add all the values up:

360 + 120 + 48 = 528 cm²

I hope this helps!

5 0
2 years ago
Im so confused (please hurry and answer this is due soon
frozen [14]

Answer:

its 12 :)

hope this helps you

3 0
3 years ago
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