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3 years ago

ASAP HELP NEEDED, TAKING A TEST

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

4 0

Answer:

Step-by-step explanation:

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

1+1+1+1+2+3=9

2+4+4+5+6+6+7+8+8=50

50/9=5.55555555556

9/50=0.18

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Solve for L.........

cupoosta [38]

Answer:

L = P/2 - W

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

P = 2L + 2W

Step 2: Solve for L

Subtract 2W on both sides: P - 2W = 2L
Divide 2 on both sides: (P - 2W)/2 = L
Distribute division: P/2 - W = L
Rewrite: L = P/2 - W

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3 years ago

What does "interpret the meaning of the quotient in terms of the two fractions given" mean?

Anon25 [30]

"Interpret" means translate from one language to another

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3 years ago

Read 2 more answers

Slope = 5, through (3,13)

rusak2 [61]

Answer:

y=5x-2

Step-by-step explanation:

6 0

3 years ago

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250 students were asked to choose their favorite color. How many more students chose purple than red as their favorite color? 26

nevsk [136]

Answer:

10 more students chose purple than red as their favorite color

Step-by-step explanation:

Step 1

Determine the proportion of students that chose each color

purple=26%

red=22%

Step 2

Use the expression for the number of students per color as follows;

Number of students per color=proportion per color×total number of students

for purple;

proportion that chose purple=26%

total number of students=250

replacing;

Number of students that chose purple=(26/100)×250=65 students

for red;

proportion that chose red=22%

total number of students=250

replacing;

Number of students that chose purple=(22/100)×250=55 students

Step 3

Difference=65-55=10

10 more students chose purple than red as their favorite color

6 0

4 years ago

Weights of female cats of a certain breed are normally distributed with mean 4.1 kg and standard deviation 0.6 kg.

Diano4ka-milaya [45]

The proportion is 0.4401.

We find z-scores that correspond with both ends of this interval. Z-scores are given using the formula:

$z=\frac{X-\mu}{\sigma}$

For the lower end,

$z=\fracc{3.7-4.1}{0.6}=\frac{-0.4}{0.6}=-0.67$

The proportion of scores to the left of this number is 0.2514.

For the higher end, the z-score is

$z=\frac{4.4-4.1}{0.6}=\frac{0.3}{0.6}=0.5$

The proportion of scores to the left of this number is 0.6915.

To find just the proportion of scores between these two, we subtract;

0.6915-0.2514 = 0.4401.

3 0

3 years ago