Solve the following system of equations and show all work. y = 2x2 y = −3x −1

1 answer:

8 0

2*2 is 4, so y=4. Knowing this, the second equation is 4=-3x-1. Add 1 to each side to get 5=-3x, then divide each side by -3 to get x=-5/3

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Solve for n. 11(n – 1) + 35 = 3n n = –6 n = –3 n = 3 n = 6

RSB [31]

Solve for n
Simply both sides 11(n-1)+35=3n
Distribute (11)(n) + (11)(-1) + 35 = 3n
11n+-11+35=3n
Combine like terms (11n)+(-11+35)=3n
11n + 24 =3n
Subtract 3n from both sides
11n+24-3n=3n-3n
8n + 24 = 0
Subtract 24 from both sides
8n+24-24=0-24
8n = -24
Divide both sides by 8
8n = -24
8 8
n = -3

6 0

2 years ago

You invest $1,300 in an account with an annual interest rate of 2.5%, compounded monthly. How much money is in the account after

galben [10]

A=1,300×(1+0.025÷12)^(12×15)
A=1,890.75

5 0

4 years ago

Read 2 more answers

F(x)=ax+b/2 then f^-1 (x-1) =2x-5/2 find a and b

krok68 [10]

From the given inverse function, we have

$f^{-1}(x-1) = 2x - \dfrac52 \\\\ \implies f^{-1}(x) = f^{-1}((x+1)-1) = 2(x+1) - \dfrac52 = 2x-\dfrac12$

By definition of inverse function,

$f\left(f^{-1}(x)\right) = x$

so that

$f\left(2x-\dfrac12\right) = x$

$a\left(2x-\dfrac12\right) + \dfrac b2 = x$

$2ax - \dfrac a2 + \dfrac b2 = x$

$\implies\begin{cases}2a=1 \\\\ -\dfrac a2+\dfrac b2 = 0\end{cases}$

$\implies \boxed{a=\dfrac12}$

$\implies \dfrac b2 = \dfrac a2 \implies \boxed{b=\dfrac12}$

8 0

2 years ago

How would you Simplify this???????????

Korvikt [17]

Lets solve this problem:(5x^2)(5x^2)^2

so first of all you would do the () first

so lets do the first one first. 5x^2 = 5*5 wich would equal 25

so the () by each other means multiply

so now its: 25*(5x^2)^2

5x^2= 5*5=25

now its: 25*25^2

do 25^2 first: 25 * 25 =625

625*25

625*25=15,625

your answer 15,625

3 0

3 years ago

Please select the best answer from the choices provided T F

bogdanovich [222]

Answer:

Step-by-step explanation:

The ordered pair (-2,-1) can also be represented by (x,y). To check the inequality we can substitute the values into the given inequality.

$y>-\sqrt{x+11+1}$