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2 years ago

A candle burns at a constant rate once it is lit. The height of the candle is 250

Mathematics

1 answer:

Ierofanga [76]2 years ago

7 0

It burned down 20mm in 20 minutes. So the height so the change in height of the candle per minute in -1 mm

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a basket contains 3 green 4 yellow 5 blue and 6 red tickets one of which is randomly selected probability of drawing a green or

elixir [45]

Answer: 21

Step-by-step explanation:

7 0

2 years ago

What is the slope of the line that passes through the following points: (3,-1) and (-1,2)?

Katyanochek1 [597]

with the equation of the slope for two points given, m=Y2-Y1/ X2-X1, you can obtain the slope , x1= 3, y1 = -1 , x2= -1, y2= 2

m = 2-(-1)/ -1-3 ⇒ m= 3/-4, m = -3/4, therefore the slope is - 3/4

7 0

2 years ago

Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y=-5x^2+3x+10

Bond [772]

Answer:

The answer to your question is:

Domain: (-∞, ∞)

Range: [10, ∞)

Step-by-step explanation:

Data

Graph y = 5x² + 3x + 10

Process

As it is suggested, let's use a graphing calculator. But we can sketch that because it is a quadratic equation, then the graph will be a parabola that opens upwards.

See the graph below.

Domain: are the possible values of the independent variable.

Range: are the reslunting values of the dependent variable.

Then

Domain : (- ∞, ∞) It is an open interval because -∞ and ∞ are

not included.

Range : [10, ∞) It is close because 10 is included.

3 0

2 years ago

A bicycle tire has a radius of 13 1/4 inches. How far will the bicycle travel in 40 rotations of the tire? Round to the nearest

Sergeu [11.5K]

Answer:

the bicycle will travel 277.5 feet or 3,330.1 inches.

Step-by-step explanation:

the circumference(distance around a tire) is calculated by multiplying a circles diameter by pi. the diameter is twice the length of the radius.

so if you multiply 13 1/4 by 2 you get 26 1.5 if you multiply that by pi than you get the circumference. then multiply this by 40 to get the inches traveled and divide that by 12 to get the number of feet traveled.

8 0

2 years ago

Use the net to find the lateral area of the cylinder 9yd 4yd

NNADVOKAT [17]

The formula of a lateral area of a cylinder:

$LA=2\pi rH$

We have r = 9 yd and H = 4 yd. Substitute:

$LA=2\pi(9)(4)=72\pi\ yd^2$

6 0

3 years ago