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2 years ago

CAN YOU EXPLAIN 7. If A = 2x + 3 and B = x^2 – 5x + 1, what is the value of A - 5B?

Mathematics

1 answer:

Rasek [7]2 years ago

4 0

Answer:

Step-by-step explanation:

A-5B = (2x+3) - 5(x²-5x+1)

= (2x+3) + (-5x²+25x-5)

= -5x² + 27x - 2

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Plz help for financial algebra

serious [3.7K]

Answer: $277.91

<u>Step-by-step explanation:</u>

The average of the 2 highest salaried quarters is:

$\dfrac{\$13,500+\$12,775}{2}=\dfrac{\$26,275}{2}=\$3,137.50$

Divide that by 26 (weeks) to find out her average weekly salary:

$\dfrac{\$3,137.50}{26}=\$505.29$

Multiply that by 55% (0.55) to calculate her weekly unemployment benefit:

$\$505.29(0.55)=\$277.908$

Round to the nearest penny --> $277.91

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2 years ago

On a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 fin

lilavasa [31]

Answer:

89.84375

Step-by-step explanation:

Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.

To find weighted mean.

Here weights can be considered as number of majors in each subject

$Marks x 90 85 93\\Weights 15 7 10\\Product 1350 595 930\\$

Weighted total = 1350+595+930 = 2875

Weighted mean = weighted total/total students

$=\frac{2875}{32} =89.84375$

6 0

2 years ago

user100 [1]

Answer:

A. y = –5x – 27

Step-by-step explanation:

Find the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line parallel to y = − 5 x + 3 .

y = − 5 x − 27 PARALLEL

...................................................................................................................................................

Find the negative reciprocal of the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line perpendicular to y = − 5 x + 3 .

y = 1 /5 x + 21 /5 PERPENDICULAR

7 0

1 year ago

Would the product change if 50 + 2 on the top of the area model was changed to 20 + 30 + 2? Explain

ollegr [7]

Answer:

It would not change

Step-by-step explanation:

Because if you add you get the same thing

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2 years ago

3r+n^2-r+5-2n+2 simplify

andrey2020 [161]

$3r+n^2-r+5-2n+2=n^2-2n+(3r-r)+(5+2)\\\\=\boxed{n^2-2n+2r+7}$

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2 years ago

CAN YOU EXPLAIN 7. If A = 2x + 3 and B = x^2 – 5x + 1, what is the value of A - 5B?​

CAN YOU EXPLAIN 7. If A = 2x + 3 and B = x^2 – 5x + 1, what is the value of A - 5B?