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Marizza181 [45]
3 years ago
15

Look at the screenshots for the answers. (50 points)

Mathematics
2 answers:
nignag [31]3 years ago
8 0

Answer:

bbbbbbbbbbbbbb

Step-by-step explanation:

miv72 [106K]3 years ago
5 0

(1)

we are given

f(x)=5x^2-2x

g(x)=3x^2+x-4

(f+g)(x)=f(x)+g(x)

now, we can plug

(f+g)(x)=5x^2-2x+3x^2+x-4

(f+g)(x)=8x^2-x-4...........Answer

(2)

we are given

f(x)=2x^2-3

g(x)=x+4

(fg)(x)=f(x) \times g(x)

now, we can plug

(fg)(x)=(2x^2-3) \times (x+4)

(fg)(x)=2x^3+8x^2-3x-12...........Answer

(3)

we are given

f(x)=3x^2+10x-8

g(x)=3x^2-2x

we have

(\frac{f}{g} )(x)=\frac{f(x)}{g(x)}

now, we can plug values

(\frac{f}{g} )(x)=\frac{3x^2+10x-8}{3x^2 -2x}

now, we can factor it

(\frac{f}{g} )(x)=\frac{(3x-2)(x+4)}{x(3x -2)}

now, we can factor it

(\frac{f}{g} )(x)=\frac{(x+4)}{x}

we know that denominator can not be zero

so,

3x^2-2x\neq 0

x\neq 0, x\neq (2/3)

so, option-C.........Answer

(4)

we are given

r(x)=x^2+6x+10

c(x)=x^2-4x+5

(r-c)(x)=r(x)-c(x)

now, we can plug it

(r-c)(x)=x^2+6x+10-(x^2-4x+5)

(r-c)(x)=10x+5

now, we can plug x=4

(r-c)(4)=10*4+5

(r-c)(4)=45

so, option-C..................Answer

(5)

we are given

c(x)=50+5x

p(x)=100-2x

(p*c)(x)=p(x)*c(x)

now, we can plug values

(p*c)(x)=(50+5x)*(100-2x)

now, we can plug x=2

(p*c)(2)=(50+5*2)*(100-2*2)

(p*c)(2)=5760

we know that

price is

c(x)=50+5x

we can plug x=2

c(2)=50+5*2

c(2)=60

so, option-B...............Answer

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The last term of an arithmetic sequence is 14 and the ninth term is -1. Find the first four
Olegator [25]

Answer:

13

Step-by-step explanation:

where n is the number of terms, a1 is the first term and an is the last term. The sum of the first n terms of an arithmetic sequence is called an arithmetic series . Example 1: Find the sum of the first 20 terms of the arithmetic series if a1=5 and a20=62 .An arithmetic sequence is a sequence where the difference between any two consecutive terms is a constant. ... As with any recursive formula, the initial term of the sequence must be given. An explicit formula for an arithmetic sequence with common difference d is given by an=a1+d(n−1) a n = a 1 + d ( n − 1 ) .

8 0
3 years ago
Pat is required to sell candy bars to raise money for the 6th grade field trip. There is a 40% chance of him selling a candy bar
labwork [276]

Answer:

It will take him about 13 houses to sell the 5 candy bars.

Pat has an 18% chance of selling his last candy in the 11th house.

Step-by-step explanation:

Since Pat is required to sell candy bars to raise money for the 6th grade field trip, and there is a 40% chance of him selling a candy bar at each house, and he has to sell 5 candy bars in all, to determine the number of houses it takes and determine the probability he sells his last candy bar at the 11th house, the following calculations must be performed:

5 / 0.40 = X

12.5 = X

So, it will take him about 13 houses to sell the 5 candy bars.

5/11 = X

0.45 = X

0.45 x 0.4 = 0.18

Thus, Pat has an 18% chance of selling his last candy in the 11th house.

4 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!!The table below represents the closing prices of stock ABC for the last five days
irakobra [83]

Answer:

A. y=-8.583x+475.215

Step-by-step explanation:

We are given,

The table representing the closing prices of stock for the last five days is,

Day                         Value

1                                472.08

2                               454.26

3                                444.95

4                                439.49

5                                436.55

Using the linear regression calculator, we have that,

<h3>The linear equation that best fits the data is y=-8.583x+475.215</h3>

Thus, option A is correct.

5 0
3 years ago
What is the solution to the compound inequality in interval notation?
Eduardwww [97]
First solve the 2 inequalities for x:-

x > 0  or x <= -5


The last choice is the correct one.
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Use a distributive property to remove the parentheses -9(2v-u-3)
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-9(2v-u-3)
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