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2 years ago

Helppp fast (picture)

Mathematics

1 answer:

harkovskaia [24]2 years ago

4 0

The answer to your question is the first option! Hope this helps. God bless

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The lateral area of a cone is 400 pi cm squared. The radius is 10 cm. Find the slant height to the nearest tenth.

Ilia_Sergeevich [38]

Answer:

Option A. $40\ cm$

Step-by-step explanation:

we know that

The lateral area of a cone is equal to

$LA=\pi rl$

we have

$LA=400\pi \ cm^{2}$

$r=10\ cm$

substitute and solve for l (slant height)

$400\pi=\pi (10)l$

simplify

$400=(10)l$

$l=400/10=40\ cm$

8 0

2 years ago

The Fuschia Bot clicks ____ times in 0.75 sec, and its Unit Rate is 8 clicks per second. Find the number of clicks.

yan [13]

Answer: The Fuschia Bot clicks _6_ times in 0.75 sec,

Step-by-step explanation:

Multiply the unit rate by time:

.75 sec × 8 clicks/sec

Seconds cancel. .75(8) = 6 clicks

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2 years ago

Which graph best represents the line y= -1/5x+2

vodomira [7]

Answer:

Step-by-step explanation:

Line crosses y-axis at 2.

Slope = $\frac{-1}{5}$

For each 1 square the line rises/falls it moves to the right/left 5 squares.

Negative slope lines are downhill left to right.

8 0

2 years ago

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The table gives the probability distribution of the number of dvds sold per day at a music store. what is the probability of 5 o

nikklg [1K]

Let x represents the number of dvds sold per day:
To complete the probability distribution table, you need to add all the probabilities given and deduct that to 1 so that you can get the probability of 5-9, applying what I have said:Probability of 5-9:= 1 - (0.1875+0.4375+0.1250) = 1 – 0.75= 0.2500
But the question is not asking for the probability of 5-9, but 5 or more. So deduct the .1875 to 1 since .1875 only represents 0-4.P(X>= 5) = 1 - 0.1875 = 0.8125

7 0

3 years ago

The standard formula for the volume of a cone is V=πr2h3. If the cone is scaled proportionally by a factor of k, its volume beco

DaniilM [7]

The volume of a cone with base radius r and height h is

$V = \frac 1 3 \pi r^2 h$

What happens when we scale by k ?

Let V' be the volume of a cone with radius rk and height hk

$V' = \frac 1 3 \pi (rk)^2 (hk) = \frac 1 3 \pi r^2 k^2 h k = k^3 (\frac 1 3 \pi r^2 h) = k^3 V$

8 0

2 years ago

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