Ask question

Ask question

All categories

2 years ago

11

Which of the following equations shows how the solution can be checked? Select the two correct answers. 3(1)+(-2)=1 1-(-2)=3 3(-

2)+(1)=1 -2-1=3

1 answer:

igor_vitrenko [27]2 years ago

6 0

Answer:

the left side 1 does not equal to the right side 3 which means that the given statement is false.

Step-by-step explanation:

You might be interested in

A cell tower is located at and transmits a circular signal that covers three major cities. The three cities are located on the c

Lelu [443]

Answer:

$(x+8)^2 +(y-4)^2 = 25$

Step-by-step explanation:

Assuming this complete problem: "A cell tower is located at (-8, 4) and transmits a circular signal that covers three major cities. The three cities are located on the circle and have the following coordinates: G (-4, 7), H (-13, 4), and I (-8, -1). Find the equation of the circle"

For this case the generla equation for the circle is given by:

$(x-h)^2 +(y-k)^2 = r^2$

From the info we know that the tower is located at (-8, 4) so then h = -8 and k = 4, so then we need to find the radius. So we have the equation like this: $(x+8)^2 +(y-4)^2 = r^2$

If the 3 points are on the circle then satisfy the equation. We can use the first point (-4,7) and if we replace we can find the value for $r^2$

$(-4+8)^2 +(7-4)^2 =25= r^2$

So then $r = \sqrt{25}=5$

And if we replace the second point we got this:

$(-13+8)^2 +(4-4)^2 = 25 =r^2$

And for the third point we have:

$(-8+8)^2 +(-1-4)^2 = 25 =r^2$

And we got the same result.

So then our final equation is given:

$(x+8)^2 +(y-4)^2 = 25$

4 0

3 years ago

2. Sheldon was doing a science experiment about temperature. He first measured the

Burka [1]

Answer:

Temperature dropped by 28°C in two hours

Step-by-step explanation:

<u>Initial measurement:</u>

t = 17°C

<u>Measurement 2 hours later:</u>

t = - 11°C

<u>The difference:</u>

-11°C - 17°C = -28°C

Temperature dropped by 28°C in two hours

7 0

2 years ago

HELP ME ASAP PLS.......

Sergio [31]

Answer:

Step-by-step explanation: 32

3 0

2 years ago

I need an answer fast!! Somebody please help me??

Savatey [412]

The answer is 20x^18 which is the last option.

6 0

3 years ago

Read 2 more answers

How do i conjugate the binomial<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B6%20%2B%204%7D%20" id="TexFormula1" title=" \s

leonid [27]

We solve 6 + 4

6 + 4 = 10.

Square root of 10:

$\boldsymbol { \sqrt{6 + 4} = \sqrt{10} }\\
\\
\\
\boldsymbol { \sqrt{10}l\underline{ \ 3.16227766017}}\\
\boldsymbol { \underline{- 10}l \ 3.16227766017 \times 3.16227766017 }\\
\boldsymbol { \ \ \ 00}$

<span>The square root of 10 is a periodic decimal (decimal that has infinite decimals, worth the redundancy)

What is that periodic decimal?
</span>
$\boxed{\textbf{3.16227766017} \boldsymbol{ \ \Leftarrow }\textbf{Square root of 10}}$

<u>REGARDS!</u>

3 0

2 years ago