Answer:
a=2b
b-a=x
ax=2b²
x=2b²/a
therefore, b-a=2b²/a
Answer:
-b
Step-by-step explanation:
b-a
=b-2b [a=2b]
=-b
note: This is what I think the answer might be but it looks too easy to be correct so i might be wrong:(
7. Jeremiah is going to the local arcade with $32 in his wallet to spend. He plans to bowl one game and play some arcade games. A game of bowling costs $11, the bowling shoe rental is $3.75, and the arcade games cost $0.75 each. Write and solve an inequality to find the number of arcade games Jeremiah can play.
Answer:
x < 25
Step-by-step explanation:
ayee
why is this true 9a=11a-2a
Answer:
9a = 11a - 2a
9a = 9a
Step-by-step explanation:
9a = 11a - 2a
11 - 2 = 9
Similarly, 11a - 2a = 9a
Eleven minus two equals nine. Similarly, 11a minus 2a equals 9a. You can subtract them because they both have the same variable a.
no one wants to help me..someone please help!!
Please help :) I will mark brainless
If the probability that it will rain tomorrow is , what is the probability that it will not rain tomorrow? ASAP
Answer:where do u live. if its near london. theres a high probabality its going to rain tomorow going asd high as 80%
Step-by-step explanation:
Answer:
MaybeStep-by-step explanation:
The probability that it will not rain will be 0.15.Because Total probability is equal to 1 and the probability of rain is 0.85.So,P(it will not rain) = 1- P(it will rain)We will subtract the probability of rain from the total probability to get the answer for the probability that it will not rain.P(it will not rain) = 1- 0.85P(it will not rain) = 0.15If the correlation coefficient is 0.654, what is the explained variation? (give answer as a percent)
Answer:
42.7%
Step-by-step explanation:
Correlation is a statistical measure of inter relationship between two variables' co movement.
Correlation coefficient denotes the direction & extent by which two variables' (same or opposite) movement is linked to each other.
Coefficient of determination = r^2 symbolises percentage of variation in one variable, that can be explained by variation in other variable.
So, in this case r^2 = (0.654)^2 = 0.427716 ; Hence approx 42.7% variation in one variable can be explained by variation in other.
In a group of 33 students, 7 study both Art and Biology. 10 study Biology but not Art. 7 study neither subject. How many study Art?
Answer:
9
Step-by-step explanation:
when you see the word expect you will
Answer:
Um, yes? No clue what you're asking.
Answer:
could you try to rephrase that question? I don't think I understand it.
this is exact and approximate pi. SOMEONE HELP PLSSS
HELP! WILL MARK BRAINLIEST!
Consider the function f(x) = x2 + bx – 2, where b is a constant. If the function has an axis of symmetry at x = – 3, what is the value of b?
Answer:
Step-by-step explanation:
if x=-3 is axis of symmetry then
(x+3)²=0
x²+6x+9=0
so b =6
Two Step Equations
x = ¹²ᵈˢ⁄ w
solve for w
Answer:
w = 12ds/x
Step-by-step explanation:
Here, we want to write the equation in terms of w
What we simply do here is to bring x and w to reach others side
we have this as;
w = 12ds/x
What is the vertex of the parabola? y+1=−1/4(x−2)2 Enter your answer in the boxes. ( , )
Answer: Just took the test the guy above me is correct correct
Step-by-step explanation:
Answer:
(2,-1)
Step-by-step explanation:
I took the test
A school needs 5,000 to buy new books for the library. So far the school has raised 75%
Answer:
Results are below.
Step-by-step explanation:
Giving the following information:
Total money needed= $5,000
Percentage raised= 75%
To calculate the amount collected and the difference required, we need to use the following formulas:
Total collected= 5,000*0.75
Total collected= $3,750
Difference= 5,000 - 3,750
Difference= $1,250
A fish tank is 3.2 feet long, 1.3 feet wide, and 6.2 feet tall.
How many cubic feet of water can the fish tank hold?
Answer:
25.8 cubic feet
Step-by-step explanation:
Volume = l · w · h
V = (3.2)(1.3)(6.2)
V = 25.792
WHAT IS THE SIN (-300)
Answer:
√3/2 or 0.886025
Step-by-step explanation:
How many solutions does this system of equations have? y=6x+x+3 y=7x+3+1
:]
Answer: no solutions
Step-by-step explanation:
y = −7x + 3
y + 7x = 10
Answer:
No solution the lines are parallel
Step-by-step explanation:
y = 6x +x + 3
y = 7x + 3
y = 7x + 3 + 1
y = 7x + 4
No solution the lines are parallel
Need help! This is due very soon!
Answer:
x = - 6, y = 15
Step-by-step explanation:
3x + 2y = 12
3(-6) + 2(15) = 12
-18 + 30 = 12
----------------------------------------
2x - 3y = -57
2(-6) - 3(15) = -57
-12 - 45 = -57
The area of a rectangle is 24x5y7 square yards. If the length of the rectangle is 3x2y6, which expression represents the width of the rectangle in yards?
Answer: [tex]8x^3y[/tex]
Step-by-step explanation:
Given
The area of a rectangle is [tex]24x^5y^7[/tex]
The length of the rectangle is [tex]3x^2y^6[/tex]
The area is given by the product of length and width
Suppose, w is the width of the area
[tex]\therefore A=l\times w\\\Rightarrow 24x^5y^7=3x^2y^6\times w\\\\\Rightarrow w=\dfrac{24x^5y^7}{3x^2y^6}\\\\\Rightarrow w=8x^3y[/tex]
Thus, the width of the rectangle is [tex]8x^3y[/tex]
hey! i’ll give brainliest please help!
Answer:
becoming a monarch I guess that is the correct answer
Answer:
becoming a monarch is the answer
Marcos purchased a sail boat for $56,900. He anticipates each year the boat will decrease in value by 8.1% from the previous year. Write an exponential function that models the value in dollars of the boat x years after Marcus's purchase.
Answer: [tex]56,900\left( 0.919\right)^x[/tex]
Step-by-step explanation:
Given
Marcos purchased a sailboat for [tex]\$56,900[/tex]
Each year the boat will decrease in value by [tex]8.1\%[/tex]
After 1 year it is
[tex]\Rightarrow 56,900-56,900\times 0.081\\\Rightarrow 56,900\left( 1-0.081\right)\\[/tex]
after another year it becomes
[tex]\Rightarrow 56,900\left( 1-0.081\right)-56,900\left( 1-0.081\right)\times 0.081\\\Rightarrow 56,900\left( 1-0.081\right)\cdot \left( 1-0.081\right)\\\Rightarrow 56,900\left( 1-0.081\right)^2[/tex]
After [tex]x[/tex] years it is
[tex]\Rightarrow 56,900\left( 1-0.081\right)^x[/tex]
[tex]\Rightarrow 56,900\left( 0.919\right)^x[/tex]
What is the equation of the circle with: center (5, 7) & point on the circle: (-2, 8)?
Answer: (x - 5)^2 + (y - 7)^2 = 50
Step-by-step explanation:
The general equation for a circle is (x - a)^2 + (y - b)^2 = r^2 where (a, b) is the centre
Use Pythagoras to find r^2
r^2 = (5 - -2)^2 + (7 - 8)^2
= 7^2 + (-1)^2
= 50
So the circle is (x - 5)^2 + (y - 7)^2 = 50
somebody pls help me and pls show work!
(no links)
Answer:
I think the answer is letter A.
Answer:
its A
Step-by-step explanation:
just expand it out
I'm guessing you don't know how to multiply fractions, just do a/b *c/d = ac/bd
and a(b+c) = ab+ ac
there are 30 students in a class. of those, 15 take history, 18 take geography, and 5 take neither of
these subjects. how many students
take both subjects?
.
Answer:
n(U)=30
n(H)=15
n(G)=18
n(H ∪ G)'=5
n(H ∪ G)=n(U)-n(H ∪ G)'
=30-5=25
So ,n(H ∩ G)=n(H)+n(G)-n(H ∪ G)
=15+18-25=8
Therefore, 8 students take both subjects.
A set is a mathematical model for a collection of diverse things. The total number of students who who take both History and Geography is 8.
What is a set?A set is a mathematical model for a collection of diverse things; it comprises elements or members, which can be any mathematical object: numbers, symbols, points in space, lines, other geometrical structures, variables, or even other sets.
Given that there are 30 students in a class. of those, 15 take history, 18 take geography, and 5 take neither of these subjects. Therefore, we can write the following values,
Total students, n(S)=30Students who take History, n(H)=15Students who take Geography, n(G)=18Students who take neither of the subject, n(H' ∪ G') =5Now, the number of students who take at least one of the two subject can be written as,
Students who choose at least one subject
= Total students - Students who take neither of the subject
n(H ∪ G) = n(U) - n(H ∪ G)'
n(H ∪ G) = 30 - 5
=25
Further, the total number of students who who take both the subjects can be written as,
Students who take both the subjects = Students who take History + Students who take Geography - Students who choose at least one subject
n(H ∩ G) = n(H) + n(G) - n(H ∪ G)
n(H ∩ G) = 15 + 18 - 25
n(H ∩ G) = 8
Hence, the total number of students who who take both History and Geography is 8.
Learn more about Sets here:
https://brainly.com/question/8053622
#SPJ2
highest common multiple of 36 and 100
Answer: 2
Step-by-step explanation:
what does this mean I need help.
Find the product of 1,398 and 8.
Answer:
11184
Step-by-step explanation:
calculator
Answer:
4x2=8 2x699+1,398
Step-by-step explanation:
The product is what do you multiply to get that as an answer
Hope this helps you out
Simplify.
x/6x-x^2 can you help me solve this question ?
Answer
[tex]\frac{1}{6-x}[/tex]
Step by-step explanation:
= [tex]\frac{x}{6x-x^2}[/tex]
= [tex]\frac{x}{x(6-x)}[/tex]
= [tex]\frac{1}{6-x}[/tex]
On Friday, a local hamburger shop sold a combined total of 504 hamburgers and cheeseburgers. The number of cheeseburgers sold was three time the number of hamburgers sold. How many hamburgers were sold on Friday?
Answer:
1,512
if not that then:
168
Answer:
379 cheeseburgers we’re sold on Friday
Step-by-step explanation:
504 x 3 / 4 =
1516 / 4 =
379 cheeseburgers sold
3. The quadratic function f(x) = - x ^ 2 + 8x - 2 has a turning point whose -coordinate is 4. Which of the following represents the range of this function?
Answer:
Step-by-step explanation:
Answer:
its A
Step-by-step explanation:
the rocket car was already going 190 mph when the timer started his watch how fast is mph was the rocket car going seven minutes later if it increased its speed by 15 miles per hour
Answer:
2,850
Step-by-step explanation:
190 x 15 = 2850
Write a quadratic function h whose zeros are 2 and 7.
First you have to find the factors for these zeros
f(x) = (x-2)(x+8)
Then FOIL to come up with the function
f(x) = x2+8x-2x-16
Combine like terms
f(x) = x2+6x-16