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3 years ago

I really need help lol

Mathematics

1 answer:

ivolga24 [154]3 years ago

3 0

Answer:

For the expression if they don't want you to include the variables then I would write 3.14(6 + 4) or 3.14(2*3+2²). For the surface area, your answer is 31.4 units.

Step-by-step explanation:

If r = 2 and s = 3, then just plug them into the equation 3.14(rs + r²)

3.14(2*3+2²)

= 3.14(6+4)

=3.14(10)

=31.4 units for the Surface Area

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A rectangular safe can hold 5184 cubic inches. Gold bars that are 3 inches by 6 inches by 2 inches fit to completely fill the sa

S_A_V [24]

Answer:

144 gold bars

Step-by-step explanation:

first you fine the area gold bars take up in cubic inches by multiplying the 3, 2, and 6 to get 36

once you have the space 1 gold bar takes up you divide the total space by that the total space is 5184 so you divide 5184 by 36 to get 144

6 0

4 years ago

Solve for x. (Round to the nearest thousandth.)<br> 3x - 8 = 15

saul85 [17]

Answer:x = 7.667

Step-by-step explanation:

3x - 8 = 15

+ 8 = 23

3x = 23

divide 3 by 3 and 23 so you get x by itself

answer = 7.667

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3 years ago

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Myron got his paycheck of $40 this weck. He had $11 left after he spent m dollars on new video

solniwko [45]

Answer:

I dont know the answer but all I know is that dude broke as heck

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3 years ago

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Find the value of $x$ for the right triangle. A right triangle with base labeled x and hypotenuse labeled 12 units. Angle betwee

slamgirl [31]

Answer:

6 feets

Step-by-step explanation:

The triangle described in the question has been sketched in the picture attached below :

From the triangle, we could solve for X, which is the base of the triangle using trigonometry :

Sinθ = opposite / hypotenus

Sin 30° = x / 12

0.5 = x / 12

x = 12 * 0.5

x = 6 feets

Hence base, x = 6 feets

8 0

3 years ago

In 2003 a town’s population was 1431. By 2007 the population had grown to 2134. Assume the population is changing linearly.How m

sergiy2304 [10]

We will have the following:

First, we will have that the population change by:

$\Delta P=2134-1431\Rightarrow\Delta P=703$

So, the population changed by 703 people.

It took the follwoing number of years to change from 1431 to 2134:

$\Delta y=2007-2003\Rightarrow\Delta y=4$

So, it took 4 years to changes from 1431 to 2134.

$m=\frac{2134-1431}{2007-2003}\Rightarrow m=175.75$

The average population growth per year is of 175.75 people per year.

The population in 2000 would have been:

$P_{2000}=\frac{2000\cdot1431}{2003}\Rightarrow P_{2000}=1428.856715\ldots$

$\Rightarrow P_{2000}\approx1429$

So, the population in 2000 would have been approximately 1429 people.

We will have that the equation for the population would be:

$P=(\frac{2134-1431}{2007-2003})t+1429\Rightarrow P=\frac{703}{4}t+1429$

So, the equation would be:

$P=175.75t+1429$

Now, we predict the number of people of the town in 2014:

$P_{2014}=175.75(14)+1429\Rightarrow P_{2014}=3889.5$

$\Rightarrow P_{2014}\approx3890$

So, there will be approximately 3890 people of the town in 2014.

3 0

1 year ago