Answer:
The surface area of a rectangular prism can be calculated using the formula:
Surface Area = 2lw + 2lh + 2wh
where l, w, and h are the length, width, and height of the rectangular prism, respectively.
Given the dimensions of the rectangular prism as:
Length (l) = 38
Width (w) = 20
Height (h) = 20
Substitute the values in the formula to get:
Surface Area = 2lw + 2lh + 2wh
Surface Area = 2(38)(20) + 2(38)(20) + 2(20)(20)
Surface Area = 1520 + 1520 + 800
Surface Area = 3840 square units
Therefore, the surface area of the rectangular prism is 3840 square units.
Answer:
3840
Step-by-step explanation:
A=2(wl+hl+hw)=2·(20·38+20·38+20·20)=3840
How many triangles can be formed given the following conditions?
Two angles and the included side (Angle-Side-Angle):
Angles: 76
and 34
Included Side: 9 in.
76 times 34 times 9 and then you get your answer
7 1/15 - 3 4/5
Answers are:
A. 4
B. 3 1/2
C. 4 1/2
D. 3
Answer:
the answer is a your welcome
A fish tank holds 80 gallons of water. John is filling the tank at a rate of 2 gallons per minute. At this rate how long will it take for John to fill 50% of the tank?
Ross drives 340 miles in 5 hours. If Ross continues to drive at the same rate, how many miles can he drive in 10 hours?
Answer:
Including the miles already driven: 680
Step-by-step explanation:
1. We can see that 5 is half of 10, or 1/2.
2. Times 340 by 2 because he has has already driven 1/2 of the time needed, so he needs to drive another 5 hours in order to complete the 10 hours needed.
Or: 340 x 2 = 680.
3. So in 10 hours he will have driven 680 miles.
help me please an thank you so much for your help
2/8 multiplied by 16:4
nice and warm regards your friends
Need help! This is my last assignment b4 spring break!
Answer: If we substitute y = 5, 0, and -5 in the expression 4y + 5, we get:
4(5) + 5 = 25 + 5 = 30
4(0) + 5 = 0 + 5 = 5
4(-5) + 5 = -20 + 5 = -15
Therefore, the values of the expression for y = 5, 0, and -5 are 30, 5, and -15, respectively.
Sorry For Late Answer
Step-by-step explanation:
Answer: 4y + 5
y = −5
0
5
Step-by-step explanation: I pretty sure that's it
complete each expression to makei ts value equal to 9
Answer:
a. 6
b. 2
c. 4
Step-by-step explanation:
Hope it helps :)
Koharu bought a bag of fruits.
The total weight of the fruits was `1` pound.
What could she have bought?
Koharu could have bought a variety of fruits that add up to 1 pound in weight. Some examples of fruits and their approximate weights per piece are:
- Apples: 1 large apple = 0.5 pounds
- Bananas: 1 medium banana = 0.3 pounds
- Oranges: 1 medium orange = 0.3 pounds
- Grapes: 1 cup of grapes = 0.5 pounds
- Strawberries: 1 cup of strawberries = 0.3 pounds
- Blueberries: 1 cup of blueberries = 0.3 pounds
So Koharu could have bought a combination of these fruits that adds up to 1 pound in weight. For example, she could have bought 2 large apples (1 pound), or 3 medium bananas and 2 medium oranges (1.2 pounds), or 2 cups of grapes and 1 cup of blueberries (1.3 pounds), and so on.
Answer:She could have bought a cantaloupe
Step-by-step explanation: a cantaloupe weighs 16 oz and 16 oz equals 1 pound
heeeeeeeeeeeeeeeelp me
Answer: 64
Step-by-step explanation:
Cup A got 1600 x 60% = 960. Cup B got 1600 - 960 = 640. Cup A spilled 960 x 40% = 384. Cup B spilled 640 x 70% = 448. 448 - 384 = 64.
please help asap so I can finish my work
the answer is 7.4
To find the mean, you add all of the numbers together and divide by the amount of numbers added.
1. 2. 3. 4.
ex: 3+6+7+10=26. there are four numbers before the equal sign.
So the mean is 26÷4 or 6.5
since there are 5 total numbers, and all of the numbers added equal 37, then divide by 5, which will equal 7.4
Deon won a charity raffle. His prize will be randomly selected from the 9 prizes shown below. The prizes include 4 rings, 3 cameras, and 2 headsets.
Answer:
54
Step-by-step explanation:
Brainliest IF Correct!
Use the graph below to answer the question.
Determine the coordinates of polygon A′B′C′D′ if polygon ABCD is rotated 90° counterclockwise.
A′(0, 0), B′(−2, 5), C′(5, 5), D′(3, 0)
A′(0, 0), B′(−2, −5), C′(−5, 5), D′(−3, 0)
A′(0, 0), B′(−5, −2), C′(5, −5), D′(3, 0)
A′(0, 0), B′(−5, −2), C′(−5, −5), D′(0, 3)
Answer:
A
Step-by-step explanation:
Rotating CCW 90 ° will cause this change in coordinates
Answer: Is would be A
Step-by-step explanation: Because since it is 90 degrees counterclockwise you would do the 270 formula since it is counterclockwise and the formula for 270 degrees is basically swapped the x and the y and add a negative to the original y and if it's already a negative it becomes a pthe polygon, so the answer is A (0, 0), B(-2, 5), C(5, 5), D(3, 0) the first one
I hope this helps you with your question and helps you understand for future questions like this
Which of the following explains the student's error?
Multiple choice questions.
cross out
A)
The two angles must equal 90°, so 2x+6+60=90
C)
The two angles do not equal 180°. They are vertical angles, so 2x+6=60
D)
The student should have added 66 to both sides of the equation instead of subtracting 66.
Part B
Fill in the blank question.
What is the correct solution?
The correct explanation for the student's error is: (C) The two angles do not equal 180°. They are vertical angles, so 2x+6=60
Vertical angles are pairs of angles formed when two lines intersect. These angles are opposite each other and have equal measures. However, the student incorrectly assumed that the vertical angles were supplementary angles (adding up to 180°).
As a result, they set up the equation as 2x + 6 + 60 = 180, which does not apply to vertical angles. This is why option C explains the error by stating that the two angles are vertical angles, and the correct equation should be 2x + 6 = 60.
To solve the correct equation for 'x', which is 2x + 6 = 60, follow these steps:
Start with the equation: 2x + 6 = 60Subtract six from both sides of the equation: 2x = 54Divide both sides by 2: x = 27The correct solution is x = 27, which means that the value of 'x' that satisfies the equation 2x + 6 = 60 is 27. This correctly reflects the measure of the angle within the given context.
In summary, the student's error stemmed from misunderstanding the nature of vertical angles and incorrectly assuming that they were supplementary angles. By recognizing the correct characteristics of vertical angles and applying the appropriate equation, the solution can be accurately determined as x = 27.
Learn more about angles:
https://brainly.com/question/1309590
Elena and Lin are training for a race. Elena runs her mile a constant speed of 7.5 miles per hour.
Lin’s times are recorded every minute:
time (minutes) 1 2 3 4 5 6 7 8 9
distance (miles) 0.11 0.21 0.32 0.41 0.53 0.62 0.73 0.85 1
1. Who finished their mile first?
2. This is a graph of Lin’s progress. Draw a graph to represent Elena’s mile on the same axes.
3. For these models, is distance a function of time? Is time a function of distance? Explain how you know.
PLEASE HELP GIVING 200 POINTS NEED DONE ASAP
ALGEBRA PROBLEM SET: LINEAR INEQUALITIES
[tex] \\ \\ [/tex]
1.) Seven more than a number is less than 18. Find the number.
2.) Five more than a number is greater than 26. Find the number.
3.) The sum of two consecutive integers is less than 55. Find the pair of integers with the greatest sum.
4.) The length of a rectangle is 4cm longer than the width. The perimeter is no more than 28cm. What are the maximum possible dimensions for the rectangle?
5.) The sum of three consecutive odd integers is no less than 51. What is the middle integer?
Answer:
1.) Let x be the number. The inequality can be written as:
x + 7 < 18
Subtracting 7 from both sides, we get:
x < 11
Therefore, the number is less than 11.
2.) Let x be the number. The inequality can be written as:
x + 5 > 26
Subtracting 5 from both sides, we get:
x > 21
Therefore, the number is greater than 21.
3.) Let x be the first integer. The second integer is x+1. The inequality can be written as:
x + (x+1) < 55
Simplifying, we get:
2x + 1 < 55
Subtracting 1 from both sides, we get:
2x < 54
Dividing both sides by 2, we get:
x < 27
Therefore, the largest possible first integer is 26, and the second integer is 27. Their sum is 53.
4.) Let w be the width of the rectangle. The length is 4cm longer than the width, so the length is w + 4. The perimeter is given by:
2(length + width) ≤ 28
Substituting the expressions for length and width, we get:
2(w + 4 + w) ≤ 28
Simplifying, we get:
4w + 8 ≤ 28
Subtracting 8 from both sides, we get:
4w ≤ 20
Dividing both sides by 4, we get:
w ≤ 5
Therefore, the maximum possible width is 5cm, and the maximum possible length is 9cm.
5.) Let x be the first odd integer. The second and third odd integers are x+2 and x+4, respectively. The inequality can be written as:
x + (x+2) + (x+4) ≥ 51
Simplifying, we get:
3x + 6 ≥ 51
Subtracting 6 from both sides, we get:
3x ≥ 45
Dividing both sides by 3, we get:
x ≥ 15
Therefore, the smallest possible first odd integer is 15, and the second and third odd integers are 17 and 19, respectively. The middle integer is 17.
Step-by-step explanation:
TODAYS THE LAST DAY OF THE QUARTER HELP PLEASE! LABEL THEM 1-5 TYSM 100 POINTS
Answer:
1. 1/256
2. 2^3 a^3
3. 1/3^2
4. 1/5^5
5. 2^6
Step-by-step explanation:
HELPPPPPPPPP TY :D
(helping my sis)
Answer:
.559
Step-by-step explanation:
The height of a plant was 2.5 feet. After 2 weeks, it grew to 4 feet. After 4 weeks, it grew to 5.5 feet. What is the percentage increase in its height at 4 weeks compared with
a. its initial height?
b. its height at 2 weeks?
Determine if the expressions are equivalent:
1.) 7 +7x; 7 (x + 1/7)
2.) 2.5(3+x); 2.5x plus 7.5
Combine like terms:
3.) 3m-6+m^2-5m+1
4.) 7x+4(2x-6)
5.) b^2+3+2b^2+4-7
6.) 3(p+5)-8+11p
PLEASE HELP I will pick brainiest
Answer:
See below.
Step-by-step explanation:
1.) 7 +7x
7(x + 1/7) = 7x + 1
No
2.) 2.5(3+x) = 7.5 + 2.5x
2.5x + 7.5
Yes
3.) 3m-6+m^2-5m+1 = m² - 2m - 5
4.) 7x+4(2x-6) = 7x + 8x - 24 = 15x - 24
5.) b^2+3+2b^2+4-7 = 3b²
6.) 3(p+5)-8+11p = 3p + 15 - 8 + 11p = 14p + 7
HELP ASAP !! 60 points In the following diagram, A||B
.
Use complete sentences to explain how the special angles created by the intersection of A and B by D can be used to solve for x.
Solve for x, showing all of your work.
Find the measure of <6
Answer:The complete sentences are:
Angles 7 and 8 are vertical opposite angles.
The special angles created are vertically opposite angles and adjacent angles.
The value of y is 24, and the measure of angles 7 and 8 is 89 degrees
Relationship between <7 and <8
From the attached figure, we can see that:
The point of intersection of lines C and D created 4 angles.
A pair of angles are either vertically opposite angles or adjacent angles.
Using the second highlight above, we have:
The above means that:
Angles 7 and 8 are congruent
The congruence relationship between both angles is vertically opposite angles.
Special angles created by lines C and D
Using the second highlight above, we have:
This means that, the special angles created are:
Vertically opposite angles
Adjacent angles
Value of y, and the measures of <7 and <8
We have:
--- vertically opposite angles
Collect like terms!
Divide both sides by 2
To calculate <7, we have:
---- adjacent angles
Substitute 24 for y
Subtract 91 from both sides
Hence, the measure of angles 7 and 8 is 89 degrees
Step-by-step explanation:
Make x the subject y = (a - b)x²
Answer:
Step-by-step explanation:
1) Isolate the x^2 by dividing both sides by (a-b)
y/(a-b)=x^2
2) Then take the square root of both sides
[tex]\sqrt{\frac{y}{a-b}}=\sqrt{x^{2} } \\\\\sqrt{\frac{y}{a-b}}= x[/tex]
can you guys help me thanks!!!
explain how you find the Area of a Circle
Answer:
A=πr2
Step-by-step explanation:
That is the formula to solve areal for a circle.
I Need this Right NOW
Answer:
-7
Step-by-step explanation:
First you plug all the terms in. Once you've done that, you realize what tou have is -5-4 -1+-3
First you solve the first part (-5-4) and get -9.
Then you solve the second half (1+-3) and get -2
You then have the equation -9--2
But because you're subtracting a negative, it turns into a positive.
So now our equation is -9+2
And you get -7.
HELP The county fair charges $10 admission and $2 per ride. What is the cost for one admission and r rides
The cost for one admission is $10, and the cost for one ride is $2.
To find the cost for r rides, we need to multiply the cost per ride by the number of rides, which gives:
cost for r rides = $2 x r = $2r
To find the total cost for one admission and r rides, we need to add the cost of one admission and the cost for r rides, which gives:
total cost = cost for one admission + cost for r rides
total cost = $10 + $2r
total cost = $2r + $10
Therefore, the cost for one admission and r rides is $2r + $10.
Answer:
To solve this question, we need to multiply the per-ride cost, which is $2, by the number of rides, r. Then, we need to add the cost of admission, which is $10, to the cost of the rides.
The equation for the cost of one admission and r rides is:
Cost = $10 (admission) + $2r (rides)
So, to find the cost for one admission and r rides, we need to plug in the value for r. For example, if r = 2, the cost would be:
Cost = $10 (admission) + $2(2) (rides) = $14
So, the cost for one admission and 2 rides would be $14.
Similarly, if r = 4, the cost would be:
Cost = $10 (admission) + $2(4) (rides) = $22
So, the cost for one admission and 4 rides would be $22.
Deena works at a customer service call center. She fields an average of 6 calls per hour. Employees are encouraged to field more than 240 calls per week. Deena has already fielded 120 calls this week. How many more hours,x , does Deena need to work this week to reach the weekly goal of fielded calls?
A. x>20
B. x>40
C. x>26
D. x>2
The students in Nora's class chose between two options for an assignment. 5/8 of the students chose option 1. If there are 32 students in Nora's class, how many chose option 1?
Will give brainly!
Answer:
20
Step-by-step explanation:
32 divide by 8 =4 times 5=20
noah was assigned to make 64 cookies for the bake sale he made 125% of that number 90% of the cookies he made were sold how many of Noah's cookies were left after the bake sale DUE TOMMOROW
Answer:
72 cookies were sold and 8 cookies were left after the bake sale.
Step-by-step explanation:
Which chemical is a reactant in the reaction?
a
the anaswer would be a because of its combinations reaction.
please help me on those two questionsss
Answer:
5. 53.3
6. 31.2