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3 years ago

Number 13 explain......

Mathematics

1 answer:

Marat540 [252]3 years ago

3 0

The slope is 2 and the equation of the line is y = mx+b with m =2

Then the equation becomes: y = 2x+b. How to calculate b?
Since this line passes through the point (-3 , 4), we replace x with -3 and y=4

4= 2.(-3) + b
4 = - 6 + b
and b= 10. The final equation is : y = 2x + 10 (answer a)

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Help with question 1C,e,f?

Dima020 [189]

1c. New Value=64.8 and Decrease=15.2
1e. Original Value= $70 and Decrease=$21
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4 0

3 years ago

Real life situation where an estimate makes sense

harina [27]

I'm in a hurry to get home.
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2 years ago

2. If (300) (30,000) = 9 x 10m, then m =

Rufina [12.5K]

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2 years ago

A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 9 meters. If concrete costs $87 per c

otez555 [7]

Answer:

28425.13

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Plug in the radius and height, and then multiply by 87.

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6 0

2 years ago

A pan is heated to 393°F, then removed from the heat and allowed to cool in a kitchen where the room temperature is a constant 6

deff fn [24]

Answer:

The approximate temperature of the pan after it has been away from the heat for 9 minutes is 275.59°F.

Step-by-step explanation:

The formula for D, the difference in temperature between the pan and the room after t minutes is:

$D = 324\cdot e^{-0.05t}$

Compute the approximate difference in temperature between the pan and the room after 9 minutes as follows:

$D = 324\cdot e^{-0.05t}$

$=324\times e^{-0.05\times 9}\\\\=206.59$

Then the approximate temperature of the pan after it has been away from the heat for 9 minutes is:

D = P - R

206.59 = P - 69

P = 206.59 + 69

P = 275.59°F

Thus, the approximate temperature of the pan after it has been away from the heat for 9 minutes is 275.59°F.

6 0

2 years ago