All categories

2 years ago

If f(x)=3x+2 and g(x)=x²-' what are the values of f, x, and 3

Mathematics

1 answer:

svet-max [94.6K]2 years ago

3 0

Answer:

( f + g) (x) = –2x + 6 ( f – g) (x) = 8x – 2 ( f × g ) (x) = –15x 2 + 2x + 8

Step-by-step explanation:

mathh

You might be interested in

Please solve these equations much appreciated

Reptile [31]

Answer:

Part c) $V=16,500\ m^3$

Part d) $V=93,312\pi\ mm^3$ or $V=292,999.68\ mm^3$

Step-by-step explanation:

Part c) Find the volume of the inverted rectangular pyramid

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the rectangular base

h is the height of pyramid

$B=(60)(15)=900\ m^2$

$h=55\ m$

substitute

$V=\frac{1}{3}(900)(55)$

$V=16,500\ m^3$

Part d) Find the maximum volume of tea in the tea cup

we know that

The volume of cylinder (tea cup) is equal to

$V=\pi r^{2}h$

we have

$r=36\ mm\\h=72\ mm$

substitute

$V=\pi (36)^{2}(72)$

$V=93,312\pi\ mm^3$ -----> exact value

<em>Find the approximate value</em>

assume

$\pi =3.14$

$V=93,312(3.14)=292,999.68\ mm^3$

7 0

2 years ago

0 = −5n − 2n How do I solve this

masha68 [24]

Combine like terms and then divide out the coefficient to solve for n

8 0

2 years ago

A function is created to represent the costs of living per person in the family. What restrictions would be made to the domain?

olganol [36]

Answer:

2) The domain would only include positive integers

Step-by-step explanation:

y cost for x person

x can't be negative or fraction.

5 0

2 years ago

Carran is building a fence around his rectangular yard. The fence will cover the front and the 2 sides of the yard. The

dolphi86 [110]

9514 1404 393

Answer:

sides: 12 feet
front: 28 feet

Step-by-step explanation:

Let x represent the length of one side of the yard. Then the width of the yard is 2x+4, and the perimeter is ...

P = 2(L +W) . . . . . . . . . . formula for perimeter of a rectangle

80 = 2(x + (2x+4)) . . . . . with values from the problem filled in

40 = 3x +4 . . . . . . . . divide by 2, collect terms

36 = 3x . . . . . . . . . subtract 4

12 = x . . . . . . . . . divide by 3. This is the length of the side fence.

2x +4 = 2(12) +4 = 28

The fence is 12 feet on the sides and 28 feet on the front. (Its total length is 52 feet.)

7 0

1 year ago

Angle JKL is 54 degrees. What is the measure of angle MKL? *

hoa [83]

Answer:

MKL = 36°

Step-by-step explanation:

(3x + 6) + (6x + 12) = 54°

3x + 6x + 6 + 12 = 54

9x + 18 = 54

9x = 54 - 18

9x = 36

x = 36/9

x = 4

MKL = 6x + 12

MKL = 6(4) + 12

MKL = 24 + 12

MKL = 36°

6 0

2 years ago

If f(x)=3x+2 and g(x)=x²-' what are the values of f, x, and 3​

If f(x)=3x+2 and g(x)=x²-' what are the values of f, x, and 3