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3 years ago

What is the distance between point A (-3, 3) and Point B (-2, 7)?

2 answers:

7 0

To find the distance between 2 points, you have to use the distance formula: $\sqrt{(x_{2}- x_{1})^{2} +( y_{2}- y_{1})^2 }$ . Fill in your numbers, and you got this: √((-2) - (-3))² + (7 - 3)², which equals about 4.123.

Answer: about 4.123

Archy [21]3 years ago

4 0

4 units. Plot the two point and connect them with a line. You can now make a right triangle. The line you plotted is the hypotonuse. Use the pythagorean theorem to find the distance between A and B is 4 units.

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Find the arc length of the subtending arc for an angle of (3pi)/8 on a circle of radius 4.

marta [7]

Answer:

3pi/2

Step-by-step explanation:

(4) 3pi/8 =3pi/2

4 0

3 years ago

The equation yˆ=−5.131x 2+31.821x−3.333 approximates the number of people standing in line to catch a commuter train x hours aft

ololo11 [35]

For this case we have the following equation:
$y = -5.131x ^ 2 + 31.821x - 3.333
$
When it's 5 a.m. then x = 0
Therefore, when it is 7 a.m. then x = 2.
Substituting x = 2 in the equation we have:
$y = -5.131 * (2) ^ 2 + 31.821 * (2) - 3.333

y = 39,785$
Rounding to the nearest whole number:
$y = 40
$
Answer:
the best estimate for the number of people in line at 7 a.m. is:
y = 40

5 0

3 years ago

Read 2 more answers

3x2 + 14x − 20 = (x + B)(3x − 4) What is B=

Alexxandr [17]

Answer:

16252452

Step-by-step explanation:

8 0

2 years ago

The school library has 36 shelves of books . Each shelf can hold 42 books . How many books can the shelves in the library all to

eduard

Answer:

There are 1,512 books in all.

Step-by-step explanation:

All we need to do is multiply the number of books by the number of shelves.

So:

42 × 36 = 1,512.

4 0

2 years ago

Read 2 more answers

You and your friends are going to the movies, and you plan to buy tickets for your friends because there is a discount

LekaFEV [45]

Answer:

y = 9.50 + 6.00n

Step-by-step explanation:

This equation shows that the base rice that you must pay is $9.50 (the cost of your ticket). $6.00n represents the cost of however many additional tickets you purchase for n friends. Say 3 friends decide to come, your n value is 3.

You would need to do the following to determine the price you need to pay for 3 friends:

6.00(3) = 18.00 (this is how much you'd pay for 3 friends)

You must add your ticket price to $18.00 to find y (the total amount you must pay for yourself and your 3 friends). So you must do the following:

y = 9.50 + 6.00(3)

y = 9.50 + 18.00

y = 27.50 (this is the total price you'll pay for everyone attending

Hope this helps :)

4 0

3 years ago