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Elden [556K]
3 years ago
8

Evaluate the function at the fiven values of the variables:

Mathematics
1 answer:
Arlecino [84]3 years ago
4 0

Answer:

f(-3)=5x^2+5x*3

-f*3=5x^2+5*3x

-3f=5x^2+15x

f=-5x(x+3)/3

f(-9)=5x^2+5x*3

-f*9=5x^2+5*3x

-9f=5x^2+15x

f=-5x(x+3)/9

Step-by-step explanation:

hope it helps you?

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59.6487 to 2 decimal places
boyakko [2]

Answer:

59.65

Step-by-step explanation:

2 decimal places is to the hundredths place.

6 0
3 years ago
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the sum of two numbers is -14. If you subtract the smaller number from. the larger number the total is 12. what are the two numb
lara31 [8.8K]
------------------------------------------------------------
Define the two numbers
------------------------------------------------------------
Let one number be x and the other be y

------------------------------------------------------------
Form equations and solve
------------------------------------------------------------
x + y = -14 --------------- (1)
y - x = 12 ------------------(2)

------------------------------------------------------------
(1) + (2)
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2y = -2
y = -1

------------------------------------------------------------
Substitute y = -1 into (2)
------------------------------------------------------------
y - x = 12
-1 - x = 12
x = -1 -12
x = -13

------------------------------------------------------------
Answer: x = -13, y = -1
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6 0
3 years ago
A rectangle has a height of 3n^2 and a width of 4n^2-5n-1.
Galina-37 [17]

Answer:

A = 12n^4-15n^3-3n^2

Step-by-step explanation:

The dimensions of a rectangle are length and breadth/width

Here we are given height . Assuming it to be one of the side of the rectangle , we will do the further calculation

Hence one side is

side 1 = 3n^2

And the other side is

Side 2 = 4n^2-5n-1

The area of rectangle = side 1 x side 2

A=3n^2 \times (4n^2-5n-1)

A=3n^2 \times 4n^2-3n^2 \times 5n-3n^2 \times 1

A=3 \times 4 \times n^2 \times n^2- 3 \times 5 \times n^2 \times n - 3n^2

A = 12n^4-15n^3-3n^2

Hence area can be given as expression

A = 12n^4-15n^3-3n^2

5 0
3 years ago
i need help with 3 (along with 3a-c) i am confused on what to do with the numbers that are in degrees...
iVinArrow [24]

Answer:

The answer to your question is below

Step-by-step explanation:

Let p = \frac{cos x + siny}{\sqrt{w^{2} - z}}

x = 36°

y = 18°

w = 29

z = 21.8

- Substitution

p = \frac{cos 36 - sin 18}{\sqrt{29^{2} - 21.8}}

- Simplification

p = \frac{0.809 - 0.309}{\sqrt{841 - 21.8}}

p = \frac{0.5}{\sqrt{819.2}}

p = \frac{0.5}{28.622}

a) Result

p = 0.017469281

b) Three significant figures

p = 0.017

c) Scientific notation

p = 1.7 x 10⁻²

a = 1.7   k = -2

7 0
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A hot air balloon descends 215 feet each minute. How far will it descend in 11 minutes
o-na [289]

Answer:

2365 ft.

Step-by-step explanation:

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