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3 years ago

Simplify the expression 14y +6+3y

Mathematics

2 answers:

umka2103 [35]3 years ago

4 0

Answer:

The simplified version is 17y + 6.

Step-by-step explanation:

14y + 6 + 3y

17y + 6

den301095 [7]3 years ago

4 0

Answer:

17y + 6

Step-by-step explanation:

commutative property

14y + 6 + 3y

14y + 3y + 6

combine like terms

14 + 3 = 17

17y + 6

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Suppose that you are conducting a survey on how many students have blue eyes in each first period classroom at Garfield Middle s

rusak2 [61]

Answer:

The correct statement is the first one: The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean

Explanation:

To calculate how many standard deviations a particular value in a group is from the mean, you can use the z-score:

$z-score=(x-\mu )/\sigma$

Where:

$z-score$ is the number of standard deviations the value of x is from the mean

$\mu$ is the mean

$\sigma$ is the standard deviation

Substitute in the formula:

$z-score=(10-6)/2=4/2=2$

Which means that the number of blue-eyed students in Mr. Garcia's class is 2 standard deviations above the mean.

Above the mean is the same that to the right of the mean, because the in the normal standard probability graph the central value is Z = 0 (the z-score of the mean value is 0), the positive values are to the right of the central value, and the negative values are to the left of the central value.

Therefore, the correct statement is the first one: The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean,

4 0

3 years ago

James is putting a fence around his square yard. The area of his yard is 100 square feet. How much fencing does James need in to

gtnhenbr [62]

Answer:

40 ft.

Step-by-step explanation:

Because James's yard is a square, we can take the square root of the area to find the side length. The square root of 100 is 10, so we know that one side of his yard will require 10 feet of fencing. Since the yard has 4 sides, we simply need to do 4 * 10 = 40 ft of fencing.

Hope this helps!

3 0

2 years ago

For a sequence defined by f(1)=13 and 2f(n-1)+(n-2), which of the following is the value of f(4)

densk [106]

Given that:
f(1)=13 and 2f(n-1)+(n-2)
then:
f(4) will be found as follows:
f(2)=2f(2-1)=2f(1)=2*13=26
f(3)=2f(3-1)+(3-2)=2f(2)+1=2*26+1=53
f(4)=2f(4-1)+(4-2)=2f(3)+(4-2)=2(53)+2=108

Thus:
Answer:(3) 108

6 0

2 years ago

Which word phrases represent the variable expression 7d? Choose all answers that are correct. A. the product of 7 and a number B

amm1812

A and D are correct.

8 0

3 years ago

Read 2 more answers

A numerical pass code is required to open a car door. The pass code is five digits long and uses the digits 0-9.

topjm [15]

Answer:

100000 pass codes

Step-by-step explanation:

the pass code form is: abcde

a: 10 numbers to choose

b: 10 numbers

c: 10 numbers

d: 10 numbers

e: 10 numbers

so there are 10^5 = 100000 pass codes exist

8 0

2 years ago