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2 years ago

Arrange the terms of the polynomial in descending powers of b 16-8b^7+5b-4b^5

Mathematics

1 answer:

maria [59]2 years ago

6 0

Answer:

-8b^7 - 4b^5 + 5b + 16

Step-by-step explanation:

The powers are indicated by the value of the exponents, so move top down.

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F(x)= -x2 + 1 for x =-3

dalvyx [7]

Answer:

f(-3) = -8

Step-by-step explanation:

It is given that f(x) = - x² + 1. Find the value of f(x) by substituting x = -3 into f(x)

f(x) = - x² + 1

f(-3) = -(-3)² + 1

= -9 + 1

= -8

8 0

2 years ago

quester [9]

Answer:

800

Step-by-step explanation:

4 0

2 years ago

You decide to market your own custom computer software. You must invest 3,255 for computer hardware,and spend 2.90 to buy and pa

ivanzaharov [21]

Answer: c) 300 copies

Step-by-step explanation:

Let x represent the number of copies that you must sell to break even.

You decide to market your own custom computer software. You must invest 3,255 for computer hardware,and spend 2.90 to buy and package each disk. This means that the total cost of producing each software would be

3255 + 2.9x

If each program sells for $13.75, it means that the total revenue from selling each software would be

13.75x

In order to break even, total cost would be equal to total revenue. Therefore,

3255 + 2.9x = 13.75x

13.75x - 2.9x = 3255

10.85x = 3255

x = 3255/10.85

x = 300 copies

8 0

2 years ago

One evening, 2/3 of Mrs. Thorne's, students watched a reality television show. Mrs. Lombardo's students, 4/5 watched the same re

attashe74 [19]

Mrs.Lombardo.<span>if you do the math out, 4/5 and 2/3 give you an LCD (Least Common Denominator) of 15, so this means 4/5 = 12/15, and 2/3 = 10/15. 4/5 is greater than 2/3. </span>

6 0

2 years ago

The population of a town increases at a rate of 5% every year. The population of this town was 10,400 in 2017. What will the pop

galben [10]

Answer:

The population of the town in 2020 will approx. be 12,039.

Step-by-step explanation:

The initial population in the year 2017 = 10,400

Increase in population every yea r = 5%

Now, 5% of 10, 400 = $\frac{5}{100} \times 10, 400 = 520$

Hence, the population in the year 2018 = 10,400 + 520 = 10,920

Now, in the year 2019

5% of 10, 920 = $\frac{5}{100} \times 10, 920 = 546$

Hence, the population in the year 2019 = 10,920 + 546 = 11,466

Now, in the year 2020

5% of 11,466 = $\frac{5}{100} \times 11,466 = 573.3$

or, the population in the year 2020 = 11,466 + 573.3 = 12,039.3

The population of the town in 2020 will approx. be 12,039.

6 0

2 years ago

Arrange the terms of the polynomial in descending powers of b 16-8b^7+5b-4b^5​

Arrange the terms of the polynomial in descending powers of b 16-8b^7+5b-4b^5