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scZoUnD [109]
3 years ago
5

Find the gradient of the line segment between the points (4,-4) and (0,-12).

Mathematics
Zephan
2 years ago
wow i am bad at maths
1 answer:
gtnhenbr [62]3 years ago
5 0

Answer: 2

Step-by-step explanation:

The equation for slope is change in y / change in x, which is (-4-(-12))/(4-0) in this case. That is equal to 2.

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Find P sophomore girl hint: p(a & b)/p(b)
Viktor [21]

Answer:

7/18

Step-by-step explanation:

P(sophomore girl) is 7 out of a total 30.

P(girl) is 18 out of 30.

(7/30) / (18/30) = 7/18

If you just look at the girls column you can see this immediately. A given is that we're looking for a girl (18 girls), then what is the chance that it's a sophomore. That is 7 out of 18.

7 0
2 years ago
What is solution set for the quadratic equation ×^2 + 10×+25=0​
Roman55 [17]

Answer:

x=-5

Step-by-step explanation:

x squared+10x+25 factors into (x+5)(x+5). Set x equal to 0 and you get x=-5. To check, plug in negative 5 and you get 25+ -50 + 25=0 which is true.

7 0
3 years ago
The image below shows where coal deposits are found in the United States. Explain how these coal deposits are energy sinks and c
Rudik [331]

Answer:

It is a little bit trivial:

As we know:

Energy sink: is anything that uses energy.

Energy source: is anything that produces energy.

How the caol deposits can be energy sinks? well, you want to extract the coal from those deposits, and to do it, you need to "use energy" (the type of energy can depend on the extraction method, for example, if you use a pickaxe to extract the coal, you are using mechanical energy)

These coals are potential energy sources because coal is an energy source, potential means that, given some circumstances, something can transform into other things.

So potential energy source in this situation means that those coal deposits can be potential energy when we extract the coal and use it as an energy source.

3 0
3 years ago
PLEASE ANSWER! WHOEVER ANSWERS WILL BE MARKED AS BRAINLIEST AND GET 100 POINTS!
Sever21 [200]

Answer:

ok,i know

Step-by-step explanation:

there is no like terms

5 0
2 years ago
Read 2 more answers
Find the surface area.
denpristay [2]

Step-by-step explanation:

a rectangular prism (like this brick) has the same basic structure as a cube (like a die) : it has 6 sides.

while a die has 6 equal sides, a rectangular prism has 3 pairs of equal sides :

top and bottom

left and right

front and back

all we have to do is calculate the areas of the 6 rectangles and add them up. that's it.

your remember, the area of a rectangle is

length × width

in our case we have

top and bottom : 2.5×11.5 × 2 = 28.75×2 = 57.5 in²

left and right : 2.5×5 × 2 = 12.5×2 = 25 in²

front and back : 11.5×5 × 2 = 57.5×2 = 115 in²

so, the total surface area of the whole block is

57.5 + 25 + 115 = 197.5 in²

5 0
2 years ago
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