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3 years ago

Please help please please please

Mathematics

1 answer:

Iteru [2.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

40 degrees, then 40/360

40/360 is equal to 1/9

1/9 times pi times times r^2

just find r and multiply all together, thats my best answer cause my IQ is like 60

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Setler79 [48]

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3 years ago

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Which point on the number line best represents√57?

Cerrena [4.2K]

Answer:

Step-by-step explanation:

$\sqrt{57} =\sqrt{3 * 19}$

Since this cannot be further simplified, we will calculate the square root of 57 with our calculators.

We find that the square root of 57 is 7.549834435, and since the tenths place is a 5, we will round up to the next whole number. So, the point on the number line that best represents the square root of 57 is 8.

Hope this helps!

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3 years ago

What value scarified the inequality -2x + 8 + 5x > 2x + 1?

shutvik [7]

Answer:

$\boxed{x > -7}$

Step-by-step explanation:

$\begin{array}{rcll}-2x +8 + 5x & > & 2x + 1 & \\3x + 8 & > & 2x + 1 & \text{Simplified}\\x + 8 & > &1 & \text{Subtracted 2x from each side}\\x & > & -7 & \text{Subtracted 8 from each side }\\\end{array}\\\boxed{\mathbf{x > -7}} \text{ satisfies the inequality}$

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4 years ago

If 2z=26, what does z equal?? HELP PLZ

trasher [3.6K]

Answer:

z=13

Step-by-step explanation:

Ok we are to solve for z from the given equation

2z=26

It's like making z the subject of formula

We will be able to think fast on how to make z the subject of formula from the equation

To make z the subject of formula we will have to divide both sides by 2

z=13

Therefore the value of z is 13

To solve this kind of question you must be to think on ways to eliminate the number behind the required number

Hope you understand

5 0

3 years ago

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A equação quadrática é escrita na forma a.X² + b.X + c = 0. Na equação quadrática seguinte 9.X² - 2.X + 6 = 0 , a soma dos valor

-Dominant- [34]

Answer:

a+b+c =13

Step-by-step explanation:

$\left\begin{array}{ccccccc}aX^2&+&bX&+&c&=&0\\ \downarrow&&\downarrow&&\downarrow&&\downarrow\\9.X^2&-&2.X &+& 6 &=& 0\end{array}\right \implies \left\{\begin{array}{ccccccc}a=9\\b=-2\\c=6\end{array}\right$

$\implies a+b+c = 9+(-2)+6\\=9-2+6\\=7+6\\=13\\\\\therefore a+b+c =13$

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3 years ago