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3 years ago

5

3. Write the standard equation of the circle with the given center that passes through the given

1 answer:

bearhunter [10]3 years ago

5 0

Answer:

D is correct.

Step-by-step explanation:

(x + 2)^2 + (y - 6)^2 = r^2

(-2+2)^2 + (10 - 6)^2 = r^2

r^2= (10 - 6)^2

r^2=16

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(a) A tram moved downward 72 meters in 8 seconds at a constant rate. What was the change in

Alex787 [66]

Answer:

a) 9 meters.

b) The total change in temperature was of 288ºC

Step-by-step explanation:

Both these questions can be solved using rules of three.

a) 72 meters in 8 seconds. How many meters it changes each second(in 1 second)?

8s - 72m

1s - x m

$8x = 72$

$x = \frac{72}{8}$

$x = 9$

9 meters.

b) In 1 hour, heated by 6ºC. How much in total during 48 hours?

1h - 6ºC

48h - xºC

x = 48*6

The total change in temperature was of 288ºC

3 0

3 years ago

a small company net income for the first six months of the year was 76500 and for the last six months it was 100000 what is the

galben [10]

Answer:

153:200

Step-by-step explanation:

75,600:100,000 then simplify to 153:200

4 0

4 years ago

Solve for x: (5 points) (-6/5)x -4 = -46<br><br> a. 23 <br> b. 35 <br> c. −23 <br> d. −35

Tanzania [10]

Hi there! The answer is B. 35.

$( - \frac{6}{5} )x - 4 = - 46$
Add 4 to both sides.

$( - \frac{6}{5} )x = - 42$
Divide by -1.

$\frac{6}{5} x = 42$
Divide by 6/5

$x = 35$
Therefore, the answer is B. 35.
~ Hope this helps you!

8 0

4 years ago

The measure of angle θ is 3pi/2 . The measure of its reference angle is /, and tan θ is .

Sphinxa [80]

Answer:

Reference angle: $\frac{\pi}{2}$

$tan(\theta)=tan(\frac{3\pi}{2})$ is not defined.

Step-by-step explanation:

The angle $\theta$ goes from the positive x-axis to the negative y-axis.

Therefore the reference angle can be calculated as following:

$\frac{3\pi}{2}-\pi=\frac{\pi}{2}$

We know that $tan(\theta)$ is:

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

If $\theta=\frac{3\pi}{2}$ then $cos(\frac{3\pi}{2})=0$ , therefore $tan(\frac{3\pi}{2})$ is not defined, because the division by 0 is not defined.

8 0

3 years ago

By the third day of a particular week, 2 accidents have already occurred in the intersection. What is the probability that there

Leona [35]

Answer:

The right answer is "0.70".

Step-by-step explanation:

The given query seems to be incomplete. Please find below the attachment of the full query.

By using the Bayes' theorem, we get

⇒ $P[(X$

By putting the values, we get

$=\frac{[P(2)+P(3)]}{[1-P(0)-P(1)]}$

$=\frac{(0.20+0.15)}{1-0.20-0.30}$

$=\frac{0.35}{0.5}$

$=0.70$

6 0

3 years ago