F(x) = 2x^3 + 8

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

7 0

Answer:32-10x

Step-by-step explanation:

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Pls help

RideAnS [48]

Answer:

40 years old

16 years old

Step-by-step explanation:

Son = 8 years old

his father is five times as old.

Father = 5 × 8

= 40 years

How old will the father be when he will be twice as old as his son?

Father = 2 × 8

= 16 years

Father:

Five times as old as son = 40 years old

Twice as old as his son = 16 years old

5 0

3 years ago

PLEASE HELP! I WILL GIVE BRAINLIEST!! Six less than the quotient of a number and 4 is 11. What is the number? Let n be the unkno

shutvik [7]

Answer:

n/4-6

Step-by-step explanation:

n/4-6

This is the expression because we need to divide n by 4 and subtract 6

The number is 68

68 divided by 4= 17

17-6=11

5 0

3 years ago

What is (1+2x3) squared

kobusy [5.1K]

Answer:

$\large\boxed{(1+2x^3)^2=4x^6+4x^3+1}$

Step-by-step explanation:

$(1+2x^3)^2\\\\\bold{METHOD\ 1:}\\\\(1+2x^3)^2=(1+2x^3)(1+2x^3)\qquad\text{use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(1)(1)+(1)(2x^3)+(2x^3)(1)+(2x^3)(2x^3)\\\\=1+2x^3+2x^3+4x^6\qquad\text{combine like terms}\\\\=1+4x^3+4x^6$

$\bold{METHOD\ 2:}\\\\\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(1+2x^3)^2=1^2+2(1)(2x^3)+(2x^3)^2\\\\=1+4x^3+2^2(x^3)^2\\\\=1+4x^3+4x^6$

3 0

3 years ago

What is the y-intercept in the linear equation −2y−4x−6=0 is

Naddika [18.5K]

$\text{To find the y intercept, turn the equation into slope intercept form: y=mx+b}\\\\-2y-4x-6=0\\\\\text{Add 4x to both sides}\\\\-2y-6=4x\\\\\text{Add 6 to both sides}\\\\-2y=4x+6\\\\\text{Divide by -2}\\\\y=-2x-3\\\\\text{The y intercept is the "b" value, therefore your y intercept is -3}\\\\\boxed{\text{Answer: -3}}$