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NARA [144]
3 years ago
7

Let f(x) = 4x-7 and g(x) = 2x + 5 Find f(g(x)). Not a multiple choice question.

Mathematics
1 answer:
Vlada [557]3 years ago
5 0
So the equation to begin with looks like this: 4(2x+5)-7, and once you solve it: (8x+20)-7, and then to 8x+13. Thus 8x+13 is your answer.
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Consider the function f(x)=-5x^2 +2x -8. find the critical point a of the function
OLEGan [10]
To find the critical number of that function we have to find the derivative and set it equal to 0 and solve for x.  The derivative of the function is f'(x)=-10x+2.  If we set it equal to 0 and solve, we have x = -2/-10 which simplifies to x = 1/5.
5 0
3 years ago
SOMEONE HELP ME PLS<br><br>I ATTACHED A PIC​
crimeas [40]

Answer:

A=54.95\ ft^2

Step-by-step explanation:

The angle of shaded sector = 360-332 = 28°

The radius of sector, r = 15 ft

We need to find the area of the shaded sector. The formula for the area of the sector is given by :

A=\dfrac{\theta}{360}\times \pi r^2\\\\=\dfrac{28}{360}\times 3.14\times (15)^2\\\\A=54.95\ ft^2

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5 0
3 years ago
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4 0
3 years ago
Read 2 more answers
How do I find the rational number halfway between <br> -24.07,-24.05
Anna [14]
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3 0
3 years ago
Sophia is 12 years old. Her Uncle Reynald tells her that if she adds 5 to her age, multiplies the sum by 3, and then subtracts 4
sasho [114]

Answer:

Her uncle's age = 47 years

Step-by-step explanation:

Sophia = 12 years old

Her Uncle Reynald tells her that if she adds 5 to her age,

= 12 + 5

multiplies the sum by 3

= (12 + 5) × 3

and then subtracts 4 from the product

= {(12 + 5) × 3} - 4

she will find his age

{(12 + 5) × 3} - 4

= (17 × 3) - 4

= 51 - 4

= 47

Her uncle's age = 47 years

Sophia wrote:

12 + 5 × 3 − 4

Using PEMDAS

P - product

E - exponent

M - multiplication

D - division

A - addition

S - subtraction

Sophia's expression can be written as = 12+(5*3)-4

= (12 + 15) - 4

= 27 - 4

= 23

Sophia's expression is wrong

8 0
3 years ago
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