3 years ago

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Mathematics

1 answer:

eimsori [14]3 years ago

6 0

Answer:

Step-by-step explanation: A is 20 (Number one) B is 40

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What's the value of 5.8 divided by 1.2

Evgen [1.6K]

The answer is about 4.8333!

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3 years ago

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5/2x - 1.5 = 3.5 what is the value of x

azamat

Answer:

Step-by-step explanation:

Add 1.5 to both sides:

5/2x-1.5+1.5=3.5+1.5

5/2x=5

Multiply both sides by 2/5

(2/5)*(5/2x)=(2/5)*(5)

8 0

3 years ago

If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases whe

mixas84 [53]

Answer:

The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.

Step-by-step explanation:

A snowball is spherical, so it's area is given by the following formula:

$A = 4\pi r^{2}$

The radius is half the diameter so:

$A = 4\pi (\frac{d}{2})^{2}$

$A = 4\pi \frac{d^{2}}{4}$

$A = \pi d^{2}$

If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases when the diameter is 10 cm.

We have to find $\frac{dd}{dt}$ when $\frac{dA}{dt} = -5, d = 10$

$A = \pi d^{2}$

Applying implicit differentiation:

We have to variables(A and d), so:

$\frac{dA}{dt} = 2\pi d \frac{dd}{dt}$

$-5 = 2\pi (10) \frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{5}{20\pi}$

$\frac{dd}{dt} = -0.0796$

The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.

6 0

4 years ago

Add, using the rule for order of operations if necessary: 15+ [2 + (-4)] + (−9)?

schepotkina [342]

$15 + ( - 2) + - 9 = 13 - 9 = 4$

#Goodluck!

8 0

1 year ago

235/15 into a mixed number

lys-0071 [83]

15 10/15

or 15 2/3

Hope I helped.

7 0

4 years ago

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