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1 year ago

14

How can x² = x² + 2x + 9 be set up as a system of equations? (1 point)

1 answer:

koban [17]1 year ago

4 0

Answer: 2

Step-by-step explanation:

Each of the two sides of the equation is set equal to y

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HELP PLEASE NOW GUVUDYGYESDTIXJRXZTKXRX

kramer

Answer:

He should cross multiply 90 and 60, and then divide by 100. The answer is 54.

6 0

3 years ago

IM SO LOST PLEASE HELP

LiRa [457]

Check the picture below.

$\bf \textit{lateral area of a cone}\\\\
LA=\pi r\stackrel{slant-height}{\sqrt{r^2+h^2}}~~
\begin{cases}
LA=539\pi \\
r=49
\end{cases}\implies 539\pi =\pi 49\sqrt{r^2+h^2}
\\\\\\
\cfrac{539\pi }{49\pi }=\sqrt{r^2+h^2}\implies 11=\sqrt{r^2+h^2}$

3 0

3 years ago

The sum of two angles is 90°. The difference of twice the larger angle and the smaller angle is 105º. The system of linear equat

denpristay [2]

Answer:

x = 65, y = 25

Step-by-step explanation:

<u>Given system of linear equations:</u>

x + y = 90
2x - y = 105

<u>Add up the equations to eliminate y:</u>

x + 2x = 90 + 105
3x = 195
x = 65

<u>Find y:</u>

y + 65 = 90
y = 90 - 65
y = 25

4 0

2 years ago

Read 2 more answers

Between which two rational numbers is squar root of 3 located

inessss [21]

We know that;

$1 ^{2} = 1 \\ 2^{2} = 4 \\ 

And 3 is between 1 and 4, therefore;\\ \boxed{1 \leq \sqrt{3} \leq 2 }

$

3 0

3 years ago

If the area of a circle is 25 pi, find the length of an arc with a central angle of 240? Any help is appreciated please.

almond37 [142]

Answer:

11.81pi

Step-by-step explanation:

r^2=25pi

r=8.86

length=2pi(8.86)(240/360)

=17.72pi(2/3)

=11.81pi

6 0

3 years ago