Answer:
2/3a^5
Step-by-step explanation:
we know that 2/7x2/7x2/7 = 8/27
a^15 cube will be a^5
because we know (2^3)^2 = 2^6
so (a^5)^3 = a^15
2/3a^5
Please Help Me ASAP!!!
if f(x)=6x^2-4 and g(x)=2x+2, find (f-g)(x).
Answer:
i need a picture or something
Step-by-step explanation:
Allison's car holds 15 gallons of gas. On a long trip, she fills the tank completely twice. The first time it costs
$2.50 a gallon. If she spends a total of $76.50 on gas, how much did gas cost per gallon for the second tank?
A. $2.60
B. $2.50
C. $5.10
D. $2.80
Answer
C
Step-by-step explanation:
divide76.5 by 15 because 15 is how many gallons and 76.5 is money divide it you get C
Determine the type of variation depicted in the given function y/3=x
Answer:
its 4
Step-by-step explanation:
r + 8 - 5r = 2(4 - 2r) solve for r please
-4r + 8 = 8 - 4r
0 = 0 so it's like {}
Answer:
r = 0
Step-by-step explanation:
This is actually the first time I've actually had a equation with the variable equaling 0.
so first things first you have the equation:
r + 8 - 5r = 2(4 - 2r)
so you are going to add or multiply all the variable numbers together and the none variable numbers together like so:
r + (-5r) and (2*4) and (2* (-2r)) to get the equation looking like so:
8+ (-4r)= 8 -4r
you then add -4r to both sides to get this equation:
8+ ( -4r)= 8 -4r
+ 4r +4r
8 = 8 + r
you then subtract 8 from both sides to get r:
8 = 8 + r
-8 -8
0 = r
to check substitute the 0 into r in the equation:
r + 8 - 5r = 2(4 - 2r)
0 + 8 - (5*0) = 2(4- (2*0))
8 = 8
Tada!!!
Pls it 100 points Y= (X-3)(X+1)(X-2)
Answer:
x is 2 and y is 0
Step-by-step explanation:
Walmart is selling 3 lemons for $1.20.how many does 25 lemons cost
Answer:
10USD
Step-by-step explanation:
For each lemon: 1.20/3=0.4
for 25: 0.4*25=10USD
Please answer correctly !!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!
Answer:
5*35+5=180
Step-by-step explanation:
Find the value of x in the triangle
X=??
Answer:
Step-by-step explanation:
this is a triangle so the sum will be 180
therefore,
50+99+z=180
149+z=180
z=180-149(transposing method)
z=31
hope it helps..mark branliest
Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position changes in feet per minute?
Answer:
6 ft/min
Step-by-step explanation:
Theres a neat trick to note; whenever you say per think of it as a fancy word for divide, because the label is always gonna be a/b (a per b)
Therefore,
the rate of feet per minute will be the feet divided by the minutes;
18 feet in 3 minutes = 18/3 ft/min
Therefore the rate is 6 feet per minute.
IF you need an explanation on what average rate implies:
Note; the word average is not prudent to answer as its extraneous, however if there was more data like "Cami descends 18 ft in 3 min and Nami descends 9 ft in 3 minutes; whats the average rate at which they descend" then you'd have to add the two rates up and divide by two.
Hope this helps :)
NO JOKING AROUND OR I WILL REPORT WHO EVER DOES
A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?
–90
–78
–66
–12
Answer:
Its 66 i just did a 50 question quiz and got it right
Step-by-step explanation:
Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :(
Answer:
A.
- Line 1 - Dead Sea
- Line 2 - Lake Assal
- Line 3 - Laguna del Carbon
- Line 4 - Death Valley
B.
Lake because it is closer to zero on a number line than Death Valley
C.
-8 < -282 < 0
Hope This Helps! And so sorry it tool me so long to answer!
PLEASE HELP ME FAST... WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER
Answer:
22.1
Step-by-step explanation:
divide 16.9 by 13= 1.3
17x1.3=22.1
I need help with this
Answer:
124 degrees
Step-by-step explanation:
x=24 so if you plug in the value and solve it is 124 degrees
Find an equation for the line below.
Help me please :(
Answer:
y=3/2x+5/2
Step-by-step explanation:
I used the Y2-Y1/X2-X1
In this equation you can see that there are 2 points (-5,-5) and (1,4)
If you substitute, you will get
4+5/1+5
9/6 and if you simplify this, you will get 3/2
Now that we have the slope, we just have to use y=mx+b
(I'm using the point (1,4)) 4=3/2(1)+b
4=3/2+b
5/2=b
Tammy's fish tank has 19 liters of water in it. She plans to add 4 liters per minute until the tank has more than 47 liters. What are the possible numbers of minutes Tammy could add water
Answer:7 mins
Step-by-step explanation:
47 minus 19 equals 28 4 times 7 equals 8
Out of the 25 students in Mrs. Green's class 19 have a pet What percent of the students in Mrs. Green's class have a pet?
The percent of students in Mrs. Green's class that have a pet is _____%
Answer:
76%
Step-by-step explanation:
Tucker drove at a speed of 45 miles per hour. How many feet per hour was Tucker traveling?
Answer:
237600 feet per hour
Step-by-step explanation:
there are 5280 feet in a mile
if he is going 45mph you multiply 45 by 5280
45 x 5280 = 237600
part a b and c
first one to answer or if correct will be marked brainliest
Answer:
the answer is 3
Step-by-step explanation:
Answer:
a-50% or 1/2
b- 1/13
c. 1/26
Step-by-step explanation:
you count how many aces or black cards, out of the total and make is a fraction.
What is the value of the expression 2^2x2^-2x3^4x3^-4
Answer:
1
Step-by-step explanation:
the positive and negative exponents cancel out
Find the value of x.
Answer:
x = 19
Step-by-step explanation:
The sum of both angles will be equal to a supplementary angle. A supplementary angle is when two angles add up to be 180°. Write an equation and solve for x.
3x + 5 + 7x - 15 = 180
~Combine like terms
10x - 10 = 180
~Add 10 to both sides
10x = 190
~Divide 10 to both sides
x = 19
Best of Luck!
Answer:
sorry i didn't find the value of x, but i did find the value of y. if that helps.
Step-by-step explanation:
y=a+5
ratios that are equivalent to 40:28
Answer:
10:7
Step-by-step explanation:
A triangle can have sides of 12, 19, and 30.
True or false
Answer:
True
Step-by-step explanation:
According to the Triangle Inequality, the sum of any two sides of a triangle has to be greater than the third side. 12+19 = 31 which is more than 30 so a triangle can have sides of 12, 19 and 30.
Answer:
false
Step-by-step explanation:
No cheaters when I say steps I mean steps!!!! If you cheat you'll wish you didnt
I don't just want the answer I want the steps to get to the answer steps steps steps plss I'm dying right now I've been doing school all day and I'm freaking out please help and explain answer
Whats 10.53+14.5+6.9+6.3+6.8
Show all your work or else don't answer at all.
pleaae help me
I WILL MARK YOU AS BRAINLIEST
Answer:
50%
Step-by-step explanation:
Answer:
50% each part is worth 25 %
Step-by-step explanation:
EASY
A bag of apples costs a dollars.
A bag of oranges costs 2 dollars more.
If Dorie bought 5 bags of apples and 5 bags of oranges, how much did Dorie pay in terms of a?
Mark all choices that are true.
A 5 (2a + 2)
B 10a + 10
c 10a + 2
D 5 (a + a + 2)
E 5a + 2a
Answer:The answer is A,B, and D
Step-by-step explanation:I just know lol
Which expression is equivalent to 8a + 20?
4(2a + 20)
4(2a + 5)
4(4a + 16)
4(4a + 5)
Answer:
4(2a+5)
Step-by-step explanation:
4 times 2a= 8a
4 times 5= 20
A factory needs to produce 1,800 jars of peanut butter on a certain day.
They start production at 8:30 A.M. By 10:30 A.M., they have produced 600 jars of peanut butter. At what time will they complete the total number of jars that they need to produce?
Answer:
2:30 am
Step-by-step explanation:
There is a 2 hour gap in between 8:30 and 10:30 and since they only made 600 jars throughout those 2 hrs you can divide 600 by 2 so you can fins out how many jars they make every hr.
Or you can multiply 600 and 2 to find out how much they make within the next 2 hrs.
600 * 2 = 1200
1200 jars were made at 12:30
1200 * 2 = 1800
1800 jars were made at 2:30
There are two hours between 8:30 A.M. and 10:30 A.M. If they make 600 jars of peanut butter per two hours, then they will make 300 jars per hour. 1800 divided by 6 is 300, so they need six hours to make 1800 jars of peanut butter. So, if they begin production at 8:30 A.M., the factory will have produced 1800 at 4:30 P.M.
Paola can run 300 meters in 15 seconds. If she runs at a constant rate,
how long does it take to run 400 meters?
Write an equation for a line that passes through (3, -4) & has a slope of -3.
Answer:
The answer is
[tex] \huge y = - 3x + 5[/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y + 4 = - 3(x - 3) \\ y + 4 = - 3x + 9 \\ y = - 3x + 9 - 4[/tex]
We have the final answer as
[tex]y = - 3x + 5[/tex]
Hope this helps you
The sales tax in Texas is 8.25% and an item costs $400. How much is
the tax?
Answer:
Step-by-step explanation:
400*8.25%= $33 tax