Answer:
D
Step-by-step explanation:
Option A:
(3)¹ × (3)⁻¹⁰ = (3)⁽¹⁻¹⁰⁾ = 3⁹
=
=
Option B :
(3)⁻¹ × (3) ¹⁰ = 3⁽¹⁰⁻¹⁾
= 3⁹
= 19683
Option C :
(3⁻⁴) × (3)⁷ = 3⁽⁷⁻⁴⁾
= 3³
Option D :
3⁴ × 3⁻⁷ = 3⁴⁻⁷
= 3⁻³
=
=
Therefore, option D is the answer.
for brainiest:):):):):):):)
Answer:
1: 55
2: 128
3: 175
Step-by-step explanation:
I believe that this is correct.
In the school election, Tammy received 3 out of every 8 votes. What percent of the votes was this? Round to the nearest WHOLE number.
? %
Answer:
38%
Step-by-step explanation:
If you convert the fraction to a decimal (0.375), and then multiply it by 100, you should get 37.5, which is the exact percentage.
37.5%
↓
38.0%
Your answer should be 38%.
[NOTE: 5 always rounds up]
Suppose the TRMS basketball team scored 78 points by 2-point and 3-point baskets only. If 35 total baskets were made, how many 2-point and 3-point baskets were scored?
Answer:
the number of 2 point and number of 3 point be 27 and 8 respectively
Step-by-step explanation:
Let us assume the number of 2 point be x
And, the number of 3 point be y
Now according to the question
2x + 3y = 78
x + y = 35
Multiply by 2 in equation (2)
2x + 3y = 78
2x + 2y = 70
y = 8
So,
x = 35 - 8
= 27
Hence, the number of 2 point and number of 3 point be 27 and 8 respectively
When Melissa was born, her parents put $8,000 into a college fund account that earned 9% compounded semiannually. When finding the total amount in the account after 18 years, what is N?
A. 18
B. 36
C. 2
D. 9
Answer:
Step-by-step explanation:
Set background
Clear frame
Open on a Jamboard
3. What is the value of x? Show your work!
X Х
(9x -13)°
(6x + 23)
10
Answer:
x =
Answer:
x = 12
Step-by-step explanation:
These are corresponding angles, so they're equal to each other:
9x - 13 = 6x + 23
9x - 6x = 23 + 13
3x = 36
x = 12
What is the equation of the line?
Answer: x = -9
Step-by-step explanation:
When you look at the line, you can see it's plotted on the x-axis. From there you know the solution will be equal to x. Since the line passes right through the number -9 on the x-axis line, the answer would be x = -9. The line is straight which means it has no y intercept which is why x is only equal to -9.
There are 48 students in a class and 6 of them are girls. What percent are boys
Answer:
87.5%
Step-by-step explanation:
If there are 48 students in total and 6 girls, then the remaining students are boys
The number of boys = 48 - 6 = 42
Now, calculate the %
42/48 x 100 = 7/8 x 100 = 87.5%
Hope this helps
If there are 48 students in a class and 6 of them are girls then the percentage of boys in the class is 87.5%,
Use the concept of percentage defined as:
A figure or ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.
The proportion, therefore, refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
Given that,
Number of students = 48
Number of girls = 6
Then number of boys = 48 - 6
The number of boys = 42
Therefore,
The percentage of boys in the class is,
[tex]\dfrac{42}{48}\times 100= 87.5 \text{ percent}[/tex]
Hence,
There are 87.5 percent of boys in the class.
To learn more about the percentage visit:
https://brainly.com/question/24877689
#SPJ6
Pls help me i need help iwiill give you points
Answer:
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area
Step-by-step explanation:
Mrs. Valdez created a scatter plot that showed the number of days a student was absent compared to the student's grade average in class.
Answer:
I believe it's the last one... "The association is linear based on the overall pattern"
3x+4=5 (2 step equations) NO BOTS
Answer:
x=1/3
Step-by-step explanation:
3x+4=5
-4 -4
3x=1
3x/3=1/3
x=1/3
How many miles did a plane travel if it flew
455 mph in three hours
Answer:
1,365 miles
Step-by-step explanation:
455 mph times 3 hours equals to 1,365.
Evaluate g(10) if g(x)=12x−4.
Answer:
116
Step-by-step explanation:
plug in the 10 in the x values to get 12(10)-4 which is 116.
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
A
Step-by-step explanation:
Aaron drank 15 oz of juice. This was 30% of the bottle. How many ounces of juice were in the
bottle originally.
Answer:
50 oz because 15 is 30 percent of 50
Step-by-step explanation:
Answer:
there was 50oz of juice originally
Step-by-step explanation:
The movie theater has 30 seats in the front row. Each row has 3 more seats than the row before it. How many seats are in the 25th row?
63
102
33
105
Answer:
d
Step-by-step explanation:
Answer:
105
Step-by-step explanation:
First you'd write an equation:
y(the number of seats) = 3x(the number of rows) + 30
Then, you'd replace the X with 25 and get your answer:
y = 3 (25) + 30
y = 75 + 30
y = 105
Which equation represents exponential decay?
a) y=0.5x3
b) y=0.5x2 - x
c) y=0.5(1.07) dy=0.5(0.87)*
I need help on this
Fred borrows $2710 at 3.8% simple interest per month. When Fred pays the loan back 3 months later, what is the total amount that Fred ends up repaying?
In a sale, the price of a sofa is reduced by 70%. The sale price is £255 What is the price before the sale?
Answer:
850
Step-by-step explanation:
Price x .30 (100%-70%)=sales price
price x .30 = 255
price = 255/.30
price = 850
what is this simplify?
Answer:
D. 2^7
Step-by-step explanation:
Answer:
2^7
Step-by-step explanation:
When we multiply the same bases with exponents like 2^3*2^4 we can add the exponents and keep the base the same
2^7 would be the answer or you can simplify further to get 128
but they said simplify so 2^7 is the answer
If they said evaluate then our answer is 128
Math help please I promise to give brainliest
Answer:
y = 0.5
x = 4 - y (0.5)
3.5 = 4 - 0.5
------------
3x - 10 = y
3(3.5) - 10 = y
10.5 - 10 = y
0.5 = y
Answer: 0.5
Step-by-step explanation:
Grace and her brother need $400 to go to band camp. Their parents have agreed to help them earn money by paying them $25 each time they mow the lawn and $10 for each hour they babysit their younger brother. They will have to do a combination of both chores to earn the money.
Select the equation that represents the number of lawns they can mow, m, and hours they can babysit, b, to earn $400.
M. 10m+ 25b= 400
P. 10m− 25b= 400
R. 25m+ 10b= 400
S. 25m− 10b= 400
Answer:
25m + 10b = 400
Step-by-step explanation:
Total amount that can be earned = $ 400
Amount earned on mowing a lawn = $ 25
Amount earned per hour on babysitting = $10
Amount earned for mowing one lawn is $ 25, so amount earned for mowing m lawns will be $ 25m
Amount earned for one hour of babysitting is $ 10, so amount earned for babysitting for b hours will be $ 10b
Total amount earned = Amount earned from mowing m lawns + Amount earned from babysitting for b hours
Using the values from above, we can set up the equation as:
400 = 25m + 10b
A glider plane travels 120 miles in 2 hours. At that rate, how many hours will it take the plane to travel 300 miles?
10 hours
2 1/2 hours
5 hours
1 1/4
The answer is C.........
HELP ANWSER ASAP PLEASE
Answer:
[tex] \boxed{x = 45°} [/tex]
Step-by-step explanation:
When two chords intersect at a point in a circle, they form arcs, along with angles at the intersection point.
To determine the angle of the arc, we must apply this geometric rule:
[tex] Angle \: formed \: by \: chords = \frac{1}{2}(sum \: of \: intersecting \: arcs) [/tex].
Since we are looking for one of the arcs, we can rearrange this formula to solve for the first arc.
[tex] Angle \: formed \: by \: chords = \frac{1}{2}(sum \: of \: intersecting \: arcs) [/tex] →
[tex] Angle \: formed \: by \: chords = \frac{1}{2}(\overset{\frown}{BA} + \overset{\frown}{CD}) [/tex] →
[tex] 2 × Angle \: formed \: by \: chords = \overset{\frown}{BA} + \overset{\frown}{CD} [/tex] →
[tex] 2 × Angle \: formed \: by \: chords \: – \: \overset{\frown}{CD} = \overset{\frown}{BA} [/tex]
[tex] \overset{\frown}{BA} = 2 × Angle \: formed \: by \: chords \: – \: \overset{\frown}{CD} [/tex]
[Given]
[tex] \overset{\frown}{BA} = x° [/tex]
[tex] \overset{\frown}{CD} = 99° [/tex]
[tex] Angle \: formed \: by \: chords \: = 72° [/tex]
→
[tex] \overset{\frown}{BA} = 2 × Angle \: formed \: by \: chords \: – \: \overset{\frown}{CD} [/tex]
→
[tex] x° = 2 × 72° \: – \: 99° [/tex]
[tex] x° = (2 × 72°) \: – \: 99° [/tex]
[tex] x° = 144° \: – \: 99° [/tex]
[tex] \boxed{x° = 45°} [/tex]
Simplify; (³√729)³ + 24
Answer:
[tex](\sqrt[3]{729} )^{3}[/tex] + 24 can be simplified to 753.
Step-by-step explanation:
If you take the root of a number to a specific number, then square that by the same number you took the root by, then you will have the same number you started with. In this case, [tex]\sqrt[3]{729}[/tex] equals 9, and [tex]9^{3}[/tex] equals 729, so [tex](\sqrt[3]{729} )^{3}[/tex] equals 729. 729 + 24 = 753, so that is the simplified answer.
Julius bought F boxes of 24 plastic forks. He already had 39 plastic forks. Now, he has 135 plastic forks. How many boxes of plastic forks did Julius buy in all?
What is the best eqation?
A.
f - 24 × 39 = 135
B.
f + 24 × 39 = 135
C.
f × 24 - 39 = 135
D.
f × 24 + 39 = 135
Answer:
D
Step-by-step explanation:
boxes are the f. the amount in each is 24. theses will be mulitplied. then you want to add what he already had. that's the +39
Can someone solve these rational expressions showing work thanks
Answer:
[tex]\frac{x-5}{\left(x-3\right)\left(x+2\right)}+\frac{2}{\left(x-3\right)\left(x+2\right)}=\frac{1}{2+x}[/tex]
Step-by-step explanation:
[tex]\frac{x-5}{\left(x-3\right)\left(x+2\right)}+\frac{2}{\left(x-3\right)\left(x+2\right)}[/tex]
[tex]\mathrm{Apply\:rule}\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}[/tex]
[tex]=\frac{x-5+2}{\left(x-3\right)\left(x+2\right)}[/tex]
[tex]\mathrm{Add/Subtract\:the\:numbers:}\:-5+2=-3[/tex]
[tex]=\frac{x-3}{\left(x-3\right)\left(x+2\right)}[/tex]
[tex]\mathrm{Cancel\:the\:common\:factor:}\:x-3[/tex]
[tex]=\frac{1}{2+x}[/tex]
Need help plz i will give brainlyist no scammer i will report and i only have 5 min
serious answers only<3 i really need to get this done before i get grounded and i used to be good at math but during quarantine all of my skill just went away
Answer:
-3 1/2
Step-by-step explanation:
-4.5 + 1 = -3.5
megan and chase were talking about the numbers 642 and 724. how does the value of the 4 in the first number compare to the 4 in the second number?
Answer:
4 in first number is in tenth place, so its 40
4 in second number is in unit place, its 4 only