Answer:
9.6a + (−2)
Step-by-step explanation:
To simplify the expression (6 + 12.5a) - (8 + 2.9a), you'll need to distribute the negative sign inside the parentheses and then combine like terms:
(6 + 12.5a) - (8 + 2.9a) = 6 + 12.5a - 8 - 2.9a
Now, combine the like terms:
(12.5a - 2.9a) + (6 - 8) = 9.6a - 2
So, the simplest form of the expression is 9.6a - 2.
The base of the pyramid below is a square that has an area of 64 square inches.
Suppose that the pyramid is sliced so that the cross-section is a square with an area of 49 square inches.
How can you slice the pyramid to get that square?
Answer:
If you sliced the pyramid parallel to the base, the cross-section would be shaped like a square
Answer:
Slice it parallel to the base
Step-by-step explanation:
Late Math Homework! (questions 7, 8, 9, & 10)
view the screenshots below and have an awesome weekend!
And Happy Earth Day!
What is the mean of this data set?
30, 42, 47, 31, 38, 46
Answer:
The mean is 39
Step-by-step explanation:
Add together all the numbers and then divide them by how many numbers there are.
If you have any questions please ask me! :)
The mean of this data set is 39
The mean, or average, of a data set is calculated by adding all the numbers in the set together and then dividing by the count of numbers in the set. This provides a central value that represents the set of data.
Let's calculate the mean of your data set: 30, 42, 47, 31, 38, 46.
First, we add the numbers together:
30 + 42 + 47 + 31 + 38 + 46 = 234
There are six numbers in the data set, so we divide the sum by six to find the mean:
234 ÷ 6 = 39
So, the mean of this data set is 39. This tells us that if we were to distribute the values equally among the six data points, each point would have a value of 39. This is often used as a way to describe the central tendency or 'typical' value of a set of data. Always remember that the mean can be influenced by extreme values, known as outliers, which might not truly reflect the central tendency of the data. In this data set, however, all values are reasonably close together, so the mean is a good representation of the data.
For more details of mean :
https://brainly.com/question/22871228
#SPJ2
group of questions if able to provide the steps for each
Answer:
Answer to 3rd image = b: the area of the circle is approximately 3 times greater than the circumferance
Explanation:
Circumferance =
[tex]\pi d[/tex]
Using this we can figure out that the circumferance is 37.704 cm or if we round it then it will be 38 cm.
Area of a circle =
[tex]\pi r^{2} [/tex]
Using this we can find that the area would be 113.112 cm² or if we round it, it becomes 114 cm².
Now let's go through the statements:
A) We know that there's no way that area is 8 times larger than circumferance because it would be 304 cm
C) The circumferance can't be an eight of the area as its approximately 4 times smaller.
D) The circumferance can't be 4 times greater as its 4 times smaller and its less than the area
We are left with B) which is the answer because 4 times the curcumferance would be 152 cm which is close enought to the area
so B) is the answer
For 4th image the answer is A) 15.7 / pi = d
Explanation:
We know that to find circumferance we use the formula:
pi d = circumferance
so we know that the circumferance is 15.7 cm so we are going to do the opposite.
pi = 3.142
If we do 15.7 / 3.142 we get 5 rounded up and we can check for any mistakes by doing 5 pi and its correct because we get 15.71 cm which is the same as 15.7 cm
so the answer is A)
Answer:A
Step-by-step explanation:
4th image the answer is A) 15.7 / pi = d
the formula:pi d = circumferance
we know that the circumferance is 15.7 cm so you can do the opposite.
pi = 3.142
If we do 15.7 / 3.142 we get 5 rounded up and we can check for any mistakes by doing 5 pi and its correct because we get 15.71 cm which is the same as 15.7 cm
answer is A)
Luis is cutting construction paper into rectangles for a project. He needs to cut one rectangle that is 12 inches × 13
1
3
inches. He needs to cut another rectangle that is 10
1
2
inches by 10
1
3
inches. How many total square inches of construction paper does Luis need for his project?
Answer: 356 total square inches
Step-by-step explanation: (12*13)+(10*10)=156+100=356 square inches
The volume of a large Tank is 126 yd(3). It is 2 2/5 wide and 2 4/5 high. What is the length of the Tank?
Hi! I'd be happy to help you find the length of the tank. To find the length, we'll use the formula for the volume of a rectangular prism: Volume = Length × Width × Height.
The volume of the tank is 126 cubic yards, the width is 2 2/5 yards, and the height is 2 4/5 yards. First, let's convert the mixed numbers to improper fractions:
Width: 2 2/5 = (2 × 5 + 2) / 5 = 12/5 yards
Height: 2 4/5 = (2 × 5 + 4) / 5 = 14/5 yards
Now, we'll plug these values into the volume formula and solve for the length:
126 = Length × (12/5) × (14/5)
To isolate the length, divide both sides of the equation by (12/5) × (14/5):
Length = 126 / [(12/5) × (14/5)]
Length = 126 × (5/12) × (5/14)
Length = (126 × 5 × 5) / (12 × 14)
Length = 630 / (168)
Length = 3.75 yards
The length of the tank is 3.75 yards.
On Thursday night Antonio watched a movie that was 1 hour and 43 minutes long. If the movie ended at the time shown on the clock below, what time did Antonio start watching the movie? Be sure to include a.m. or p.m. in your answer.
Answer:
7 o'clock
Step-by-step explanation:
Answer:
show the picture
Step-by-step explanation:
Witch of the following is the solution to the inequality to 2x - 4 < 12?
Answers:
x < 8
x < 12
x < 16
Answer:
[tex]2x - 4 < 12[/tex]
[tex]2x < 16[/tex]
[tex]x < 8[/tex]
100 POINTS MATHAMATICS PLEASE ANSWER ASAP
look in image and answer ALL 4 PROBLEMS
PLEASE HELP QUICKLY!!! NO GUESSING OR LINKS OTHERWISE YOU WILL BE REPORTED!!! IF THE ANSWER IS ANSWERED CORRECTLY I WILL GIVE BRAINLIEST. TvT
Answer:
Angle 1 and 2 = 180 which is a straight line angle
3 and 4 also = 180
1angle + 2angle + 3angle + 4angle = 360 degrees
Step-by-step explanation:
Simplify.
7² + 2²
A. 9
B. 53
C. 81
D. 94
Answer: B. 53
Step-by-step explanation:
A square of 7 is 7*7 = 49
A square of 2 is 2*2 = 4
so Now,
49+4 = 53.
Simplifying 7² + 2² we get,
(7 x 7) + (2 x 2)
Solving the above equation we get,
49 + 4
53
Solving the Multiplication and then the Addition part of the given equation the answer we get is B. 53
First, solve any operations inside brackets. Second, solve any exponents. Third, solve all multiplication and division from left to right. Fourth, solve all addition and subtraction from left to right. This is the Solving Pattern you should always follow.
Know more about Simplifying the Equations,
https://brainly.com/question/723406
https://brainly.com/question/19960423
Equation which contains Exponents,
https://brainly.com/question/1280754
Which set describes the number below?
Answer:
A: Correct
It needs more characters so here ya go
A composite figure has a radius of 10 cm.
A circle with radius of 10 centimeters. One-quarter of the circle is cut out of the figure.
What is the area of this composite figure? Use 3.14 for Pi.
23.55 centimeters squared
78.5 centimeters squared
235.5 centimeters squared
314 centimeters squared
Answer:
C, 235.5 cm^2
Step-by-step explanation:
Formula for area of circle:
A = πr^2
Where π represents pi(3.14 or 22/7) and r represents the radius.
Plug in given value (10):
A = πr^2
A = 3.14(10)^2
A = 3.14(100)
A = 314
Now they say a quarter of this circle is cut out, which means we have to first find out what a quarter of this area is:
314/4
= 78.5
A quarter of this circle is 78.5, so let's subtract this from the total area (314):
314 - 78.5
= 235.5 cm^2
The area is 235.5 centimeters squared.
Can someone please solve this for me on paper and explain it? I'm offering 30 points? This is a Sixth-grade level question.
Answer:
Where is the Question? Are you joking around or a you for real
Think About the Process
A right rectangular prism has length 3 1/3 , width 2 1/3 , and height 1 1/3 . You use cubes with fractional edge length 1/3 to find the volume. How many cubes are there for each of the length, width, and height of the prism? Find the volume.
Answer:crr
Step-by-step explanation:
thf
Susan has a new mountain bike. For each mile that she rides her bike, her front tire
rotates one complete turn approximately 776.1 times.
A:
answer: 63360.
work: multiply 5280 by 12.
B:
answer: 4876.38
work: C=2πr=2·π·776.1≈4876.38012
(I'm not that great with circumference, but I tried my best to show work. I hope I answered your question.)
Which quadrilateral always has four sides of the same length?
1. isosceles
2. trapezoid
3. parallelogram
4. square
5. rhombus
pick all that apply.
pleas help find the slope of this problem
Answer:
2. answer is 2
5. answer is 0.5
Step-by-step explanation:
[tex]\frac{1--3}{0-2}[/tex]=[tex]\frac{4}{2}[/tex]=2
[tex]\frac{3-1}{0-4} =[/tex][tex]\frac{2}{4}[/tex]=0.5
not sure if correct
Quadrilateral EFGH was dilated with the origin as the center of dilation to create quadrilateral E'F'G'H'. The quadrilateral was dilated using a scale factor of 2.5. The coordinates of the vertices of quadrilateral E F G H are given. What are the coordinates of G' ?
Answer: 6.25,-5
Step-by-step explanation:
all you have to do is go along the x and then the y-axis. the point is roughly 6.25 and because the y-axis is below 0 it will be minus therefore -5.
The dot plots below show the weights of the players of two teams:
Based on visual inspection of the dot plots, which team appears to have the larger mean weight? (5 points)
a
Not enough information is available to draw a conclusion.
b
Both groups are similar.
c
Team C
d
Team D
Answer:
Team C appears to have the larger mean weight.
Step-by-step explanation:
After seeing the dot plot of two teams i.e. Team C and Team D the conclusion that can be drawn regarding the larger mean of the team is that:
Team C is expected to have larger mean since the dots are for the higher values of weights and hence will result in higher mean. whereas for team D the dots or frequencies are for smaller weights and hence will result in a less mean as compared to team C.
Hence, Team C appears to have the larger mean weight.
1st line graph mean: 132.25 LARGER
2nd line graph mean: 123.125
the markers measuring more than 5.5 inches are placed end to end in a row to make a line how long is the line
Answer:
11 inches
Step-by-step explanation:
5.5 + 5.5 = 11 inches.
Answer:
11 inches
Step-by-step explanation:
5.5 added to 5.5 is equal to 11
hope u have a great day
find this slope please it would help me in my math work
Answer:
1st: 5/1 Answer: 5
2nd: 6/1 Answer: 6
Step-by-step explanation:
Answer: number 3= 5/-1 number 6= 6
Step-by-step explanation: you can use the slope formula which is y2-y1/x2-x1 = the slope in doing this you can find the slope for each one
I need help i literally don't understand any of these questions
Answer: It is below with explanations on how to do it! :D
Step-by-step explanation:
1. First one shows a graph and a line. Remember, the equation for this is y = mx + b. The point that crosses the y-axis is 0. So far, the equation looks like this: y = mx + 0. In order to find the slope, we have to choose another point on the graph. I will choose the point (-4, -2). The slope is the direction of the line travelling from left to right. So to get from (-4, -2) to the point 0, aka origin, we have to go up 2 units and move 4 units to the right. This method is called rise over run. Now the slope is 2 over 4 -> 2/4.
Final answer is y = 2/4x + 0
Simplified version is y = 1/2x + 0
That is your equation in slope intercept form!
2. The second one shows a graph and is asking to write an equation in slope-intercept form. Here is the equation for that -> y = mx+b
M is the slope, and b is the y-intercept (where the point crosses the line on the y-axis).
So, in this case, M=4 and b=0
Plug it into the equation, y = 4x + 0
The graph is attached below (I did not draw it but I took a screenshot from a video that shows it)
I also attached the graph for you for the last question!
I hope this helps you :)
find the surface area of the composite figure
Answer:
412
Step-by-step explanation:
[tex]2(12 \times 2 + 10 \times 2 + 12 \times 10) + 6 \times 3 \times 2 + 8 \times 3 \times 2[/tex]
[tex] = 2(164) + 36 + 48[/tex]
[tex] = 328 + 84[/tex]
[tex] = 412[/tex]
Answer: I believe it is 508 cm²
Step-by-step explanation:
Start out by finding the surface area (SA) of the 2 shapes. The formula for SA is 2(wl + wh + wh).
Blue shape: 2(12x2 + 12x10 + 2x10) = 328 cm²
Red shape: 2(8x3 + 8x6 + 3x6) = 180 cm²
Now that the surface area of both shapes are solved, just add them together and you will get the answer of 508 cm²
I don't know if this is the right answer
i need an answer..quick...
Answer:
It decreased? by 4 gallons each day
Step-by-step explanation:
Looking at the table starting from Monday, the gas was 18 then it decreased by 4 making 14 by Tuesday, and the same pattern goes on till Friday.
I hope this helps :D
HELP DUE TOMORROW
SOS
Page One (Question 15):
1. 16-4=12 The difference is 4, more than 3
2. 12-0=12 The difference is 0
2. 13-1=12 The difference is 1
2. 14-2=12 The difference is 2
2. 15-3=12 The difference is 3
Page Two (Question 13 and 14):
1. Sorry, I forgot...
Matt is selling tickets for the football game next week. His daily ticket sales over the past six days have been 37, 29, 37, 50, 45, and 38 tickets. His goal is to sell an average number of 40 tickets per day. To achieve Matt’s goal, how many tickets must he sell on the final day of the week?
A: 38 tickets
B: 44 tickets
C: 236 tickets
D: 280 tickets
Answer:
b is the answer
Step-by-step explanation:
lets make ‘ x ‘ the number of tickets he should sell on the final day.
make into a fraction;
[tex]\frac{37+29+27+50+45+38}{7} = 40[/tex]
37 + 29 + 27 + 50 + 45 + 38 = 280
236 + ‘ x ‘ = 280
⇒ ‘ x ‘ = 280 - 236
‘ x ‘ = 44
b being the answer
three over 6 times x plus 8
three over 6 times x plus negative 20
negative five sixths times x plus eight
negative five sixths times x plus negative 8
Answer:
the answer is -5x/6 + 12
Step-by-step explanation:
= -2x/3 -x/6 -6 + 14
=(-4x - x)/6 +12
= -5x/6 + 12
Answer: The answer is 7 1/6
Step-by-step explanation:
you have to solve the problem inside the parentheses and subtract it to get your final answer
Please help!
Your mother has a new cell phone. It comes with 18 applications already installed. She uses only those applications. She downloaded an additional 12 applications that she uses regularly. Write an equation to represent the total number of applications your mom uses. Explain your equation and your reasoning. (4 points)
c) How many applications will your mother actually use on her new cell phone? Solve the equation you wrote in part b to find the unknown variable.
Answer: x = 18 + 12
Step-by-step explanation:
Using the variable (x), you are able to give a number to any equation. By adding the 2 together, you end up with what (x) is going to be. Now solve for (x).
x = 18 + 12
x = 30
I have 60% on my iPad and my brother has 90% on his how much more percentage I need as a fraction.
Answer:
1/3
Step-by-step explanation:
just convert it?
3/10
Step-by-step explanation:
60% is the same as 60/100
90% is the same as 90/100
90-60=30
30/100
30/100 is divided by 10 on each side to simplify it to 3/10
