All categories

2 years ago

Someone please help!

Mathematics

2 answers:

sp2606 [1]2 years ago

8 0

Answer:

(5,6)

Step-by-step explanation:

formula of midpoint = { (x1+x2)/2 , (y1+y2)/2 }

from the formula { 2+8/2 , 3+9/2 }

ans is: { 5 , 6 }

ANS: (5,6)

sorry for bad image

Sloan [31]2 years ago

4 0

Answer:

plot the points & find where they insect then calculate the mid-point

You might be interested in

Latoya used 4 gallons of ginger ale, 1 gallon of orange juice, and 1 gallon of pineapple juice to make punch for her brother's b

Shkiper50 [21]

Answer: 96 cups

Step-by-step explanation: A gallon holds 128 ounces there were 6 gallons used to make the punch. 128x6= 768 ounces

A cup holds 8 ounces so you would do 768/8 and that would give you 96 cups

8 0

1 year ago

Read 2 more answers

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

7 0

3 years ago

A scale drawing of a boat is 15 centimeters long. If the drawing uses a scale of 1 centimeter = 1.5 feet, how long many feet lon

matrenka [14]

Answer:

22.5 ft

Step-by-step explanation:

1/1.5=15/x

cross multiply and solve

22.5

5 0

2 years ago

2.<br> What is the equation of a hyperbola with a = 8 and c=20

jek_recluse [69]

Answer:

Just Assume that the transverse axis is horizontal

5 0

2 years ago

The figure to the right has its Congruent segments marked. AB=__ meters

Ber [7]

9514 1404 393

Answer:

20 meters

Step-by-step explanation:

The single hash mark on AB matches the single hash mark on AC, so AB = AC. AC is marked as 20 meters, so AB is 20 meters.

7 0

2 years ago