 Questions
 radical equation
2^x+20=15+3^x
A)1
B)16
C)5
D)25
I chose c but i got it wrong i am having a problem understanding it.
Let me rewrite the question in a more standard format.
2* sqrt(x)+20=15 + 3*sqrt(x)
where * means multiply, and sqrt means the square root. Your use of ^ for square root is unusual, normally, we use the carat sign, ^, as an exponent..for instance, 2 cubed will be 2^3.
Ok, your problem.
2* sqrt(x)+20=15 + 3*sqrt(x)
gather your terms..
2* sqrt(x) 3*sqrt(x) =15  20
 sqrt(x)=5
square both sides...
x=25
 👍
 👎
 👁
 ℹ️
 🚩
Answer this Question
Related Questions

MATH 2B Calculus
Consider the area between the graphs x+4y=14 and x+7=y^2. This area can be computed in two different ways using integrals. First of all it can be computed as a sum of two integrals They ask to use two integrals so i put f(x) from 7 to 2 which is correct

S.S
1. Why did Thomas Paine write the pamphlet, Common Sense? a. to support conquering the Native Americans b to argue that more land should go to France and Spain c to show that loyalty to the monarchy was wrong d to pledge his loyalty to the british

Buffer solution
Solve an equilibrium problem (using an ICE table) to calculate the pH. a solution that is 0.205 M in CH3NH2 and 0.110 M in CH3NH3Br. i used th Ka of CH3NH2 and set up the problem as Ka=[H3O][CH3NH2]/[CH3NH3Br], but that was wrong. So i switched the

Math
Write an equation for the hyperbola. Vertices at ( 5,2) and (1,2), passing through the point (6,4) Could you be so nice and help me please:) I have still wrong answer and I have no idea where I'm doing mistake. My work: Horizontal transverse )( Center

order of operations
Find the value of the expression below for r=4 and t=2 t^3r+20 divided by r 9 72 6* I chose this one 40

chem
net ionic equation. Aqueous acetic acid (HC2H3O2) is neutralized by aqueous barium hydroxide. i got H^+(g) + OH^(g) > H_2O(l) but it is wrong. are my states of matter wrong?

Chemistry
At 1100 K, Kp=0.25 for the following reaction. 2SO2(g) + O2(g) (reversible arrows) 2SO3(g) What is the value of K at this temperature? This is what I have so far: I did Kc=0.25(1100(0.0821))^1 and got Kc=0.00276. That is incorrect. Why? What did I do

English
______ and _____ have been to class. a) He, me b) He, I c) Him, I I chose a)He and me but a friend told me she thinks c)Him and I sounds better. Now I'm doubting myself...

Physics
The four tires of an automobile are inflated to a gauge pressure of 1.8E10^5 Pa. Each tire has an area of 0.025 m2 in contact with the ground. Determine the weight of the automobile. I was helped with this before, but the answer was wrong. Can someone

math
at breakfast buffet, 93 people chose coffee for there beverage and 47 people choe juice. Twentyfive people chose both. Each person chose at least one of these beverages. how many visted the buffet
Still need help?
You can ask a new question or browse existing questions.