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jonny [76]
2 years ago
5

I'm confused on this(this is 12 year old math) ​

Mathematics
1 answer:
Gemiola [76]2 years ago
7 0

Answer: the top box can be the linear equation y=40x+15 and the bottom box is 40

Step-by-step explanation:

If you swim 15 more minutes than your friend and your swam 55 minutes, that means your friend only swam 40 minutes. The set amount of time that your friend swims for <em>x</em> is 40 minutes. So the additional time you swim is <em>b</em>, 15 minutes.

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WHICH ONE DOESN'T BELONG? Which figure does not belong with the other three? Explain your reasoning.
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The sphere. All the others are prisms.
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(8) In 10 years, Maria will be 39 years old. Let m represent Maria's age today. Which
makvit [3.9K]

Answer:

(3)

Step-by-step explanation:

if Maria is 39 in 10 years and m is her age today then you would have to add 10 to m to get 39

m+10=39 years old

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3 years ago
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The diameter of Circle Q terminates on the circumference of the circle at (3,0) and (3,-7) . Write the equation of the circle in
Deffense [45]

Step-by-step explanation:

The center of a circle with 2 end points of a di diameter is the midpoint of the two endpoints.

The formula needed to find the minpoints is

(x,y) = (x2 + x1)/2, (y2 + y1)/2

x2 = 3

x1 = 3

y2 = 0

y1 = -7

midpoint = (3 + 3)/2, (0 - 7)/2

midp[oint = 3,-3.5

The midpoint is the center of the circle. Observe that the signs get changed when entering the values for (x,y)

So far what you have is (x - 3)^2 + (y + 3.5)^2 = r^2

To determine r^2 you need only take the distance from the center to oneof the endpoints.

r^2 = (3 - 3)^2 + (3.5 - 0)^2

r^2 = 3.5^2

r^2 = 12.25

Answer: (x - 3)^2 + (y + 3.5)^2 = 12.25

6 0
3 years ago
A gallon of paint covers 400 square feet how many square feet will 2 3 8th gallons of paint cover
lisabon 2012 [21]
2 \frac{3}{8} /1=2 \frac{3}{8} &#10;
400*2\frac{3}{8}=950 square feet

6 0
3 years ago
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