Rays, lines, and angles, unlike points, have ____

Landon and Keira are preparing refreshments for a party. To make fruit punch, they will mix 2 gallons of grape juice with 1 cup

VikaD [51]

2 gallons is equal to 256 oz and a cup is equal to 8 oz so your total is 270 fl oz.

8 0

3 years ago

PLEASE HELP!!! WORTH 10 POINTS:)

Nataliya [291]

$The\ slope-intercept\ form:\\\\y=mx+b$

$the\ slope:\ m=50\ miles/hour\\\\y-intercept=120\ miles\\\\\boxed{y=50x+120}$

3 0

3 years ago

Read 2 more answers

An intelligence test that has a maximum completion time of 45 minutes was recently administered to a group of 9 people. Their re

Ede4ka [16]

Answer:

a) $\bar X=39.9$

b) Median =40

c) Bimodal distribution 40,45 with a frequency of 2 for each one

Step-by-step explanation:

Part a

The statistical mean refers "to the mean or average that is used to derive the central tendency of the data in question. It is determined by adding all the data points in a population and then dividing the total by the number of points". And is defined:

$\bar X =\frac{\sum_{i=1}^n x_i}{n}$

And for this case if we apply this formula we got:

$\bar X =\frac{45+40+42+39+44+40+45+33+21}{9}=39.9$

Part b

The median is a "measure of central tendency. To find the median, we arrange the observations in order from smallest to largest value. And we have two possible cases:

1) If there is an odd number of observations, the median is the middle value. 2) If there is an even number of observations, the median is the average of the two middle values."

So if we order the dataset we got:

31,33,39,40,40,42,44,45,45

Since we have an odd number of observation n=9, the median would be just the middle value on position 5 and for this case Median =40

Part c

The mode of a set of data values is the value that appears most often. As a set of data can have more than one mode, the mode does not necessarily indicate the centre of a data set.

For this case we have a bimodal distribution and the corresponding values are 40 and 45 with a frequency of 2 for each one.

8 0

3 years ago

Express the ratio 25 to 5cm in its lowest terms

bagirrra123 [75]

Answer:

5:1 cm

Step-by-step explanation:

Let's look at the ratio in fraction form, since ratios are easier to think about in this mathematical way:

$25:5=\frac{25}{5}$

Now we have a fraction which is easier to work with. We can look for a common factor of 25 and 5 and then factor it out to find the lowest terms of our ratio and the simplified version of the fraction. One common factor of 25 and 5 that I can think of is 5 itself. So, let's divide both sides by 5.

$\frac{25}{5}$ ÷ $5\\$ = $\frac{5}{1}$

Does that make sense? 25 divided by 5 is 5, and 5 divided by 5 is 1. So the simplified version of the fraction is $\frac{5}{1}$ , and the lowest terms of the ratio 25:5 cm is 5:1 cm.

Hopefully that makes sense! If you need more help or any of that was confusing or difficult to understand, let me know. :)

7 0

2 years ago

Read 2 more answers

Hhhhhhhhhhhhhhhhhhhhhhh

liq [111]

Answer:

for the triangle on top on side is 8 one side is 4 so if we use the theorem

64+16=80

a=9

so

Side a = 19.8242

Side b = 17.66349

Side c = 9

Angle ∠A = 90° = 1.5708 rad = π/2

Angle ∠B = 63° = 1.09956 rad = 7/20π

Angle ∠C = 27° = 0.47124 rad = 3/20π

Area = 79.48573

Perimeter p = 46.4877

Semiperimeter s = 23.24385

3 0

2 years ago

Rays, lines, and angles, unlike points, have _____?