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ra1l [238]
3 years ago
8

Solve this: if [a]=2,then 1[a]0=120 feet, and if [c]=8, then 6[c]=68 feet

Mathematics
1 answer:
katrin2010 [14]3 years ago
5 0
Well the answer would be 120=120 and 68=68
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if a student scored 78 points on a test where the mean score was 84.5 and the standard deviation was 3.1. the student's z score
son4ous [18]

Answer:

(number - mean)/standard deviation.

Plug in the 78 for the number, the 84.5 for the mean, the 3.1 for the standard deviation.

Step-by-step explanation:

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2 years ago
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madam [21]

Answer:

the second and last one

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3 years ago
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3 0
2 years ago
Perform the indicated operation: (-1 1/2)(-3/2)
LiRa [457]

Answer:

=8 1/4 as a fraction or 8.25 in decimal form.

Step-by-step explanation:

The indicated operation is the product of the two fractions. Multiplication opens the brackets.

(-11/2)×(-3/2)

=(-11×-3)/(2×2)

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Choose 1 answer among the improper fraction, Mixed fraction or the decimal.

6 0
3 years ago
Which polynomial represents twice the sum of -5x^2-x+6 and 7x^2+x-1?
elena-14-01-66 [18.8K]

The polynomial that represent twice the sum of -5x^{2} - x +6 and 7x^{2} + x -1 is : 4x^{2}+10

<h3>What is a polynomial?</h3>

A polynomial is any  algebraic expression that has the least value of the power of  its variable as 2.

When the highest value of the polynomial is 2, it is a called a quadratic expression.

Analysis:

2( -5x^{2} -x +6 + 7x^{2} +x -1)

2( 2x^{2} + 5) =

4x^{2} + 10

In conclusion, the polynomial that represents the above  expressions is 4x^{2} + 10

Learn more about polynomials: brainly.com/question/2833285

#SPJ1

7 0
1 year ago
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