Answer:
1
Step-by-step explanation:
the first one because if you take the expression that you want, and expanding it out, you will get the first one.
Answer:
A
Step-by-step explanation:
(a^2)^3 (b^5)^3
The powers multiply when written like this. They don't add.
a^6 b^15
A
Help pls
what is the slope intercept form of (-1,8) and (3,6)
Answer: y = 1/2x+15/2
Step-by-step explanation:
If you need any more help let me know!! I will try to answer every question you post!
Barry opens a savings account after seeing the ad. He deposits $1,300.
Determine an equation that relates the amount of time t in years that Barry holds his account to the amount of interest I that he earns.
Enter the correct answer in the box.
The question is an illustration of simple interest.
The equation that relates Barry's savings after t years is; [tex]f(t)=1300 + 28.6t[/tex]
The given parameters are:
[tex]P = 1300[/tex] --- the amount deposited
[tex]r = 2.2\%[/tex] --- annual interest
So, the interest is calculated using:
[tex]I = PRT[/tex]
This gives
[tex]I = 1300 \times 2.2\% \times t[/tex]
[tex]I = 28.6 \times t[/tex]
[tex]I = 28.6t[/tex]
So, the equation that relates Barry's savings after t years is;
[tex]f(t)=P + I[/tex] --- i.e. the amount deposited plus the interest
This gives
[tex]f(t)=1300 + 28.6t[/tex]
Hence, the required equation is: [tex]f(t)=1300 + 28.6t[/tex]
Read more about simple interest at:
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I'm stuck on this question for math in middle school, so I can't help
This is my last question someone help and plz make sure it’s right will mark brainiest plz :)
Answer:
fort nite
Step-by-step explanation:
i dont know what brainiest means
Three less than 4 times a number is equal to 12 more than seven times the number. What is the number?
Answer:
-5
Step-by-step explanation:
4x-3 = 7x+12
Subtract 12 from each side4x-15 = 7x
Subtract 4x from each side-15 = 3x
Divide each side by 3-5 = x
Rewrite using symmetric propertyx = -5Which lines are parallel to y = -4x + 7?
A y-1=4(x+8)
B y=-4x+15
C 16x+4y=9
D y=-4x
Answer:
The answer is C
Step-by-step explanation:
I don't know if I'm right. Hope it helps!
What is the lowest common multiple of 14, 28, and 84?
Explain
help
Answer:
308
Step-by-step explanation:
first you divide all three numbers by the smallest counting number,in this case, it is a '2' . keep on dividing with other numbers until when you reach a point where the remainder is indivisible, that is to say numbers like 7,11,5 etc.
Which number line represents the solution to the inequality below? *PLEASE ANSWER AND SHOW ALL WORK*
Due 10/2
for School: Practice & Problem Solving
X 1.9.PS-16
Question Help
5
Challenge Between 9 P.M. and 6:10 A.M., the water level in a swimming pool decreased by in.
24
Assuming that the water level decreased at a constant rate, how much did the water level drop
each hour?
The water level decreased by in. each hour.
(Simplify your answer. Type an integer, proper fraction, or mixed number.)
Enter your answer in the answer box and then click Check Answer.
All parts showing
Clear All
Check Answer
Answer: The water level drops each hour by 0.1472 inches/hour.
Step-by-step explanation:
We are given that Between 9 AM and 6:10 AM the water level in a swimming pool decreased by 5/12 inches assuming that the water level decreased at a constant rate.
Firstly, we will find the number of hours between 6:10 AM and 9 AM, that is;
Number of hours = From 6:10 AM and 9 AM, there are 2 hours and 50 minutes
So, Number of hours = = 2.833 hours
Also, the water level in a swimming pool decreased by = = 0.417 inches
Now, to find how much did the water level drop each hour, we will divide the amount of water level in a swimming pool decreased by the time interval given, that is;
=
= 0.1472 inches/hour.
This means that the water level drops each hour by 0.1472 inches/hour.
0.1472 as a fraction is 92/625
Question Toss a coin 30 times and record the result in the table given below: a Frequency Tally Possible Outcome Heads Tails (5 marks Represent the result in a bar graph. a (5 Write an observation you made after tossing the coin 30 times? What was the percentage of tails after 30 toss? Working
Answer:
Heads 1
Heads 2
Heads 3
Tails 1
Heads 4
Heads 5
Tails 2
Heads 6
Tails 3
Tails 4
Heads 7
Tails 5
Tails 6
Heads 8
Heads 9
Heads 10
Tails 7
Tails 8
Tails 9
Heads 11
Heads 12
Heads 13
Heads 14
Heads 15
Tails 10
Heads 16
Heads 17
Tails 11
Tails 12
Heads 18
Tails was 40% as heads was 60%
Step-by-step explanation:
14. Thomas is building a fence around his
garden. He made a scale drawing as
shown below.
4 cm
2 cm
Scale
1 cm: 1.5 m
What is the perimeter of the actual fence?
13
Answer:
18 meters
Step-by-step explanation:
4 cm = 6m
2cm = 3m
6x3=18
Please <3 my Answer B )
Answer:
13
Step-by-step explanation:
How do you get the answer to these two questions? I don’t understand
Answer:
Hey, so it's actually pretty simple I'll try my best to explain it properly!
Step-by-step explanation:
So for the first blue circle the line that goes to the middle that's the radius. And to solve the area you need to know the radius. The formula to solve the area is A = [tex]\pi[/tex] [tex]r^{2}[/tex] so what we would do its 3.14 times 6 times 6 or 3.14 times 36 which would give us the area! Now for circumference, the equation for that is C = 2[tex]\pi r^{2}[/tex] which would look like 2 times 3.14 times 6 times 6 or 2 times 3.14 times 36 and that would give you the circumference.
Point H, with coordinates (-2,6), is part of a
figure that is transformed by dilation with a
scale factor 2. What are the coordinates of H'
after the dilation?
Step-by-step explanation:
your teacher forgot to mention if the dilation is based on the origin (0, 0).
I assume this is what was meant, but it has to be explicitly specified to be sure.
but if things are as assumed, then the scaling factor is just multiplied into the point coordinates to get the result :
H' = (-2×2, 6×2) = (-4, 12)
In 60 seconds , Darrell walks 90
90
meters. Describe the unit rate at he wall
Answer:
1.5 sec by meters
Step-by-step explanation:
90 meters/60 sec=1.5
Darrel walks at a unit rate of 1.5 m/sec.
What is speed?Speed is defined as the rate of change of position in unit time.
Mathematically,
Speed = Distance/Time
Now it is given that,
Distance in walk by Darrell = 90 meters
Time taken by Darell to walk 90 meters = 60 seconds
Therefore Speed i.e unit rate of walk is given as,
Unit rate of walk = Distance in walk by Darrell / Time taken by Darell to walk 90 meters
⇒ Unit rate of walk = 90/60 m/sec
⇒ Unit rate of walk = 3/2 m/sec
⇒ Unit rate of walk = 1.5 m/sec
Thus, Darrel walk at a unit rate of 1.5 m/sec.
To learn more about Speed, Distance and Time :
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Given the function f(x)=8-3x. Solve f(-2)
A. -14
B. 14
C. -2
D. 2
Answer:
14, which is B.
Step-by-step explanation:
Plug in -2 in your function.
f(-2) = 8-3(-2)
= 8 - (-6)
= 8 + 6 = 14
i need help cause i dont know this i was out of school that day
Answer:
0.315
Step-by-step explanation:
act like the fraction is a division problem divide 6 by 19.
this decimal is a repeating decimal so it will never end rounded to the thousandth place it is 0.315
Marco purchases dog food by the pound for his dog , Bruiser. His total purchase is $34.20, and the food is $4.65 per pound. Write a division problem that could be used to determine how many pounds of dog food Marco purchased.
Answer:
34.20/4.65=7.35 pounds of dog food
Step-by-step explanation:
total/per pound=# of pounds
34.20/4.65
In the sequence 2, 8, 16, 64, 256, 1024 what is the fourth term?
Answer:
64 is the fourth term
Step-by-step explanation:
Note : -
First term : 2
Second term : 8
Third term : 4
Fourth term : 64
Fifth term : 256
Sixth term : 1024
Please help immediately
Show your work
Answer:
a + 7
Step-by-step explanation:
x^2 + 2x - 8. on [5,a]
(f(a)-f(5))/( a - 5 )
(( a^2 + 2a - 8 ) - 27 ) / a - 5
( a^2 + 2a - 35 ) / a - 5
(a - 5)(a + 7) / a - 5
a + 7
solve for y
110
75
100
55
Answer:
100
Step-by-step explanation:
because a straight line equals 180 degrees. 25 plus 55 is 80. 180 minus 80 is 100, so the answer is 100 degrees
suppose that p is the probability that a randomly selected person is left handed. The value (1-p) is the probability that the person is not left-handed. In the sample of 100 people, the function V(p)= 1000 p(1-p) represents the variance of the number of left-handed people in a group of 100.
a) What value of p maximizes the variance?
b) What is the maximum variance?
Answer:
a) 1/2
b) 250
Step-by-step explanation:
The start of the question doesn't matter entirely, although is interesting to read. What we are trying to do is find the value for [tex]p[/tex] such that [tex]1000p(1-p)[/tex] is maximized. Once we have that [tex]p[/tex], we can easily find the answer to part b.
Finding the value that maximizes [tex]1000p(1-p)[/tex] is the same as finding the value that maximizes [tex]p(1-p)[/tex], just on a smaller scale. So, we really want to maximize [tex]p(1-p)[/tex]. To do this, we will do a trick called completing the square.
[tex]p(1-p)=p-p^2=-p^2+p=-(p^2-p)=-(p^2-p+1/4)-(-1/4)=-(p-1/2)^2+1/4[/tex].
Because there is a negative sign in front of the big squared term, combined with the fact that a square is always positive, means we need to find the value of [tex]p[/tex] such that the inner part of the square term is equal to [tex]0[/tex].
[tex]p-1/2=0\\p=1/2[/tex].
So, the answer to part a is [tex]\boxed{1/2}[/tex].
We can then plug [tex]1/2[/tex] into the equation for p to find the answer to part b.
[tex]1000(1/2)(1-1/2)=1000(1/2)(1/2)=1000*1/4=250[/tex].
So, the answer to part b is [tex]\boxed{250}[/tex].
And we're done!
and y =
4
4
Which is the solution of the equation (4y - 3)2 = 12?
3+2v3
3-23
a. y =
3+2V2
b. y =
and y =
-3-2V2
4
63
-63
y=-
and y =
4
4
3v2
-3/
and y =
4
C.
d. y =
4
4
Answer
10
Step-by-step explanation:
1) soe soe had 15kg of flour. She used 4/5 of it to make some cookies. How many kilograms of flour had she left?
2) U Kyaw mixed red paint and blue paint in the ratio 5:3 for painting a wall. If he made 24 liters of paint for the painting job, how many litres of blue paint did he use?
Answer:
1) 3 liters left
2) 9 liters of blue paint
Step-by-step explanation:
1) 1/5 * 15 = 3
2) 3 liters of blue paint for each 8 liters.
24/8 * 3 = 9
Fractions and Comparisons
Level : JHS1.
The amount of flour used is :
= 4/5 × 15 kg
= 12 kg
The amount of flour left is :
= 15 kg - 12 kg
= 3 kg
2.
5 : 3 = Red : Blue
The amound of blue paint :
= 3 : (3 + 5) × 24 liters
= 3 : 8 × 24 liters
= 9 liters
So, the litres of blue paint did he use is 9 liters
#LearnWithEXO
What expression would give a sum of 16
What expression would give you a product of 16
Answer:
12+4 is the expression that will give you a sum of 16
4•4 is an expression that will give you a product of 16
remember an expression does not have an equal sign if it had an equal sign then it would be an equation and expression has no equal sign
There is a proportional relationship between time in hours and time in days.
What is the constant of proportionality?
Answer:
bbc
Step-by-step explanation:
Answer:
24
Step-by-step explanation
Help! I’ll mark brainly list but please explain!!
Answer:
9.75, 2, and 56.25
Step-by-step explanation:
Since it's 4 movie tickets, 2 popcorns (which are $6.25),
4(9.75) + 2(6.25 -> Popcorn) + 4.75
= 39 + 12.5 + 4.75
= 39 + 17.25
= $56.25
As for the total cost,
4 * 9.75 = 39
2 * 6.25 = 12.5
1 * 4.75 = 4.75
Feel free to mark this as brainliest! :D
How can you model geometry figures to solve real-world problems? Complete the explanation to answer the question. You can use drawings to plan rooms or gardens since the (Ratio/Dimension/scale) of the drawing is a (Ratio/Dimension/scale) between 2 sets of measurements. It shows how each (Ratio/Dimension/scale) in a drawing relates to the actual object.
the ratio Dimensions are in other Dimensions buuut you have to watch
out for the 7 cat walks because you really wont see them in till you die from it
What is 329*56 divided by 21
Answer:
The answer is 877.333333333
Answer:
877.333333333
Step-by-step explanation:
329*56 divided by 21 = 877.333333333
round 88.85 to the nearest ten
Answer:
it's 88.9
Step-by-step explanation:
Answer: 88.9
Step-by-step explanation .....
what is the midpoint of (5,-3) and (-1,-7) .
help me , i will give you points
Explain, using complete sentences, the advantages and disadvantages of a deferred payment plan.
Answer:
some advantages is that you can not pay all at once some disadvantage is that you can feel like you can. do that always then you can get late fees that can cost more the the product it self