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2 years ago

Which ordered pair is a solution to the equation y=-2x+10

Mathematics

2 answers:

wolverine [178]2 years ago

7 0

Are there any answer choices?

lilavasa [31]2 years ago

4 0

Answer: there are 3 possible answers (0,10) (1,8) and (2,6)

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Find the volume of a cylinder with a radius of 4 in and a height that is 3 times the radius

german

Answer:

Volume of a cylinder: V = π * r² * h ,

Base surface area of a cylinder: A_b = 2 * π * r² ,

Lateral surface area of a cylinder: A_l = 2 * π * r * h ,

Total surface area of a cylinder: A = A_b + A_l ,

Step-by-step explanation:

So, when the radius is tripled, the volume will be 3 squared = 9 times than the previous one.

8 0

2 years ago

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OKAY PLEASEEEE THIS IS THE LAST ONE I NEED HELP ON SOMEONE PLS HELP!!! its rly confusing lol

mario62 [17]

Answer:

little more points

Step-by-step explanation:

5 0

2 years ago

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What does the symbol for factorial function (n!) <br> mean?

Firlakuza [10]

N! means multiply the number by every number less than n

example 5! means 5 x 4 x 3 x 2 x 1

8 0

2 years ago

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The United States Marine Corps is reviewing its orders for uniforms because it has a surplus of uniforms for tall men recruits a

Vlad [161]

Answer:

$69.7 -2.58 \frac{2.8}{\sqrt{772}}=69.44$

$69.7 +2.58 \frac{2.8}{\sqrt{772}}=69.96$

And we can conclude that the true mean for the heights of mens between the ages of 18 to 24 is between 69.44 and 69.7 inches.

Step-by-step explanation:

For this case we have the following sample size n =772 from men recruits between the ages of 18 to 24

$\bar X= 69.7$ represent the sample mean for the heigth

$\sigma=2.8$ represent the population standard deviation

We want to construct a confidence interval for the true mean and we can use the following formula:

$\bar X \pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

The confidence level is 0.99 or 99%o then the significance level is $0.01$ and $\alpha/2 =0.005$ and if we find for a critical value in the normal tandar ddistirbution who accumulates 0.005 of the area on each tail we got:

$z_{\alpha/2}= 2.58$

And replacing we got:

$69.7 -2.58 \frac{2.8}{\sqrt{772}}=69.44$

$69.7 +2.58 \frac{2.8}{\sqrt{772}}=69.96$

And we can conclude that the true mean for the heights of mens between the ages of 18 to 24 is between 69.44 and 69.7 inches.

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3 years ago

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Solve this quadratic equation and explains the steps to help you solve it . Also which two specific methods help you to solve it

suter [353]

Recall that the quadratic formula states that, the solutions to the quadratic equation

$ax^2+bx+c=0$

are

$\frac{-b\pm\sqrt{(-b)^2-4ac}}{2a}.$

Now, in the given equation, a=-1 ,b=-6, and c= 8. Therefore, the solutions to the equation are:

$x=\frac{6\pm\sqrt{36+32}}{-2}.$

Simplifying the above result, we get:

$x=-3\pm(-1)\sqrt{17}.$

Answer:

$\begin{gathered} x_1=-3+\sqrt{17,} \\ x_2=-3-\sqrt{17}. \end{gathered}$

3 0

6 months ago