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Georgia [21]
2 years ago
7

What is the sum of the polynomials?

Mathematics
2 answers:
rewona [7]2 years ago
8 0
7x^2-9x-5 hope it helps
Lorico [155]2 years ago
3 0
A. is the answer look at the attached photo

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A store pays $10.56 fora map of Africa and marks the price up by
nignag [31]

Essentially, 50% of $10.56 is $5.28.

This means that all we have to do is add $10.56 to $5.28, making <u>$15.84</u>


Side note: Another way that you can do this is by simply doing 1.5(10.56).

6 0
3 years ago
Write the percent as a fraction or mixed number in simplest form. 72.5
barxatty [35]

Answer:

29/40

Step-by-step explanation:


6 0
3 years ago
Ata Sets
Fynjy0 [20]

Describe the data:

Mean=12

Interquartile range=7

Range=17

Do Not describe:

Range-23

Median=10

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6 0
1 year ago
I need help ASAP. I'm not good with math.
bonufazy [111]

Given:

The increase in pressure P is the linear function of the depth d.

P(d)=0.445d+14.7

The cost of dinner is $300 and $10 per students.

To find:

The initial value and rate of change and their interpretation.

Find the cost function C where n is the number of students.

Solution:

The slope intercept form of a linear function is

f(x)=mx+b          ...(i)

where, m is rate of change and b is y-intercept or initial value.

We have,

P(d)=0.445d+14.7        ...(ii)

From (i) and (ii), we get

m=0.445,b=14.7

The initial value is 14.7. It means, the pressure at sea level is 14.7 pounds psi.

Rate of change is 0.445. It means, the pressure is increasing by 0.445 pounds psi for every feet.

The cost of dinner is $300 and $10 per students.

Let C(n) be the total cost for dinner and n be the number of students.

Fixed cost = $300

Additional cost for 1 student = $10

Additional cost for n student = $10n

Now,

Total cost = Fixed cost + Additional cost

C(n)=300+10n

Therefore, the required cost function is C(n)=300+10n.

8 0
2 years ago
Is y=x+9 linear or is it not linear
avanturin [10]

Answer: It is linear. When a line is linear it just means it makes a straight line when you graph it. When it isn’t it will be curved or in some weird shape.

Step-by-step explanation:

3 0
3 years ago
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