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4 years ago

Can someone explain how to do these? You can just pick one of them...ignore my incorrect answers

Mathematics

2 answers:

bearhunter [10]4 years ago

5 0

You did it correctly

BlackZzzverrR [31]4 years ago

4 0

3)x=m-z 4)correct
5)x=k+u 6)x=-c+g
7)a=k/u 8)x=cg

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PLEASE HELP WILL GIVE BRAINILEST

tatiyna

Answer:

$\Huge\boxed{25.13ft^3}$

Step-by-step explanation:

Hello There!

It says the tree has a cone like structure

The formula for volume of a cone is

$V=\pi r^2\frac{h}{3}$

where r = radius and h = height

note it says to use 3.14 for pi

so given the dimensions all we have to do is plug in the values into the formula

$V=3.14*2^2*\frac{6}{3}\\2^2=4\\4*3.14=12.56\\\\\frac{6}{3} =2\\2*15.56=25.133$

Our last step is to round to the nearest foot

So we can conclude that the tree has a volume of 25.13ft³

7 0

3 years ago

She gave 1/3 of cookies for her husband 1/4 of the cookies to her son and 1/6 of a cookies to her neighbor she ate the remaining

beks73 [17]

She made 15 cookies

<em><u>Solution:</u></em>

Let "x" be the number of cookies she made

She gave 1/3 of cookies for her husband

Therefore,

$Husband = \frac{1}{3}x$

Find the remaining

$Remaining = x - \frac{x}{3} = \frac{3x-x}{3} = \frac{2x}{3}$

1/4 of the cookies to her son

Therefore,

$son = \frac{1}{4} \times \frac{2x}{3} = \frac{x}{6}$

Now again find the remaining

$Remaining = \frac{2x}{3} - \frac{x}{6} = \frac{x}{2}$

1/6 of a cookies to her neighbor

$Neighbor = \frac{1}{6} \times \frac{x}{2} = \frac{x}{12}$

Now again find the remaining

$Remaining = \frac{x}{2} - \frac{x}{12} = \frac{5x}{12}$

She ate the remaining six cookies

Therefore,

$\frac{5x}{12} = 6\\\\5x = 72\\\\x = 14.4$

Thus she made approximately 15 cookies

6 0

4 years ago

PLEASE HELP!!!! ASAP!!!!

Semmy [17]

As you can see clearly the first equation and the second equation descripe the same line so the have infinite soultions that is why it is a coincident system

6 0

4 years ago

Read 2 more answers

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour. Which equation represents how many grams of the

Dahasolnce [82]

The exponential equation that represents how many grams of the compound will remain after 8 hours is:

B: C=260(0.962)^8

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

$A(t) = A(0)(1 - r)^t$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour, hence the equation for the mass after t hours is given by:

$A(t) = 260(1 - 0.038)^t$