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3 years ago

Which of the following is the equation for a circle with a radius of r and center at (h,k)

1 answer:

3 0

Equation for a circle with radius r and centre at (h,k) is given by -

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

Hope it helps you ! :)

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The fare for a taxi cab is $2.50 per passenger and $0.75 for each mile. A group of friends has $22.00

xeze [42]

For this case we have to:

x: Let the variable representing the number of people to travel in the group

y: Let the variable representing the number of miles traveled.

If friends only have $22 then we have the following inequality:

$2.50x + 0.75y \leq22$

Now, if there are three people in the group we have that $x = 3.$

$2.50 (3) + 0.75y \leq22\\7.5 + 0.75y \leq22\\0.75y \leq22-7.5\\0.75y \leq14.5\\y\leq \frac {14.5} {0.75}\\y\leq19.33$

The taxi can travel a maximum of 19.33 miles.

On the other hand, if the group wants to travel 10 miles then we have to y = 10.

$2.50x + 0.75 (10) \leq22\\2.50x + 7.5 \leq22\\2.50x \leq22-7.5\\2.50x \leq14.5\\x\leq \frac {14.5} {2.50}\\x \leq5.8$

Thus, they could travel a maximum of 5 people.

ANswer:

$2.50x + 0.75y \leq22$

Traveling 3 people, the taxi can travel a maximum of 19.33 miles

Traveling 10 miles, a maximum of 5 people can travel

7 0

3 years ago

I need all the answers to all three for an assignment

snow_tiger [21]

Which one? I help u

3 0

3 years ago

Read 2 more answers

HELP ME PLEASE!!!!!!! What is the volume of the cube?

tatiyna

The answer is A. 3375 mm^3. This is because, since it is a cube, all of the sides are the same, meaning that you have to do 15 × 15 = 225, and then multiply that by 15 which is 3375. I hope this helps!

5 0

4 years ago

Select the correct answer.

Sonbull [250]

Answer:

Step-by-step explanation:

6 0

3 years ago

Use chain rule to show that d(4cos2x)/dx=-8sin2x

devlian [24]

$\dfrac{\mathrm d(4\cos2x)}{\mathrm dx}=4\dfrac{\mathrm d(\cos2x)}{\mathrm dx}=-4\sin2x\dfrac{\mathrm d(2x)}{\mathrm dx}=-8\sin2x$

4 0

3 years ago