What is the surface area? I need help help
Surface Area=2400
Step-by-step explanation:
To find the surface area we need to use this formula: Surface Area=6a^2
Where a is the side lengths that are being provided by the cube, now we plug in 20 as a into the formula.
Surface Area=6(20)^2
Surface Area=6(400)
Surface Area=2,400
Hope I helped, have a nice day :)
Answer:
2400
Step-by-step explanation:
[tex]SA = 2(lw + lh + wh) = 2(20^2 + 20^2 + 20^2) = 2(3 * 20^2) = 2(3 * 400) = 2 * 1200 = 2400[/tex]
if the height of two similar prisms have a ratio of 7:21 then the ratio of the area is.....
Answer:
1:3
Step-by-step explanation:
7:21
1:3
so , 7:21 is 1:3.
how do u find the percent of 36 and 40? Thanks!
In how many ways you can put 2 books on 5 shelves so that
there is not more than one book on a shelf?
Answer:
Picking any one of the two books there are five shelves to put it on - which makes five ways to place it and for each of those five ways there are four shelves the other book could go such that the two books are not on the same shelf. That's four ways to place a second book for each of the five ways to place the first. That's a total of 20 ways.
Step-by-step explanation:
Brainly? I only need one more to rank up!
There are 20 different ways of putting 2 books in 5 shelves.
What is combination?'A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter.'
According to the given problem,
Number of books = 2
Number of shelves = 5
Now, we can put the first book in 5 shelves in 5 different ways.
Since, one shelf is occupied now, we can put the second books in 4 shelves in 4 ways.
Therefore,
Number of ways of putting 2 books in 5 shelves = 5 × 4
= 20
Hence, we can conclude, we can put 2 books in 5 shelves in 20 different ways.
Learn more about combinations here: https://brainly.com/question/8018593
#SPJ2
The Pentagon's ABCDE & PQRST are similar find the length X of QR
Please help I will give 50 points and give branliest!!!!
Answer:
x = 3.2
Step-by-step explanation:
Since they are similar the ratio of the side lengths must be the same
Using the bottom side and the unknown side from the left figure and the right figure
5 4
----- = --------
4 x
Using cross products
5x = 4*4
5x = 16
Divide by 5
x = 16/5
x =3.2
What is the solution set of x^2+5x1=0?
Answer:
[tex]x=\sqrt{5}i,\:x=-\sqrt{5}i[/tex]
Can y’all’sss help! Pleasee
Answer:
[tex]26091 \div 13 = 2007[/tex]
please help! find the surface area of the prism
Answer:
1. 172 cm²
2. 226.56 cm²
3. 336 cm²
4. 284 cm²
Step-by-step explanation:
which one ? all ?
a surface area of an object is always the sum of the individual shapes areas on its surface.
1. 6 rectangles (length×width)
2 rectangles of 2×8 = 16 cm²
32 cm²
2 rectangles of 2×7 = 14 cm²
28 cm²
2 rectangles of 7×8 = 56 cm²
112 cm²
total : 32+28+112 = 172 cm²
2. 2 triangles and 3 rectangles
2 triangles (baseline × height / 2) = 7.2×4.8/2 = 17.28 cm²
34.56 cm²
2 rectangles 10×6 = 60 cm²
120 cm²
1 rectangle 10×7.2 = 72 cm²
72 cm²
total : 34.56+120+72 = 226.56 cm²
3. 2 triangles (right-angled) and 3 rectangles
2 triangles (a×b/2) = 8×6/2 = 24 cm²
48 cm²
1 rectangle 6×12 = 72 cm²
72 cm²
1 rectangle 8×12 = 96 cm²
96 cm²
1 rectangle 10×12 = 120 cm²
120 cm²
total : 48+72+96+120 = 336 cm²
4. 6 rectangles
2 rectangles of 3×10 = 30 cm²
60 cm²
2 rectangles of 3×9 = 27 cm²
54 cm²
2 rectangles of 10×9 = 90 cm²
180 cm²
total : 60+54+180 = 294 cm²
Brainliest to who gets it right no links
A. t(x)=450-0.06x
hope this helps
Evaluate the expression.
a - 7ab + b when a= 4 and b = -3
Answer:
85
Step-by-step explanation:
4 - (7 x 4 x -3) + -3
4 - (28 x -3) -3
4 - (-84) -3
88 - 3
85
A sphere p has a volume of 75 cm cube. Find the volume of a sphere whose radius is twice the radius of p
Answer:
https://www.gigacalculator.com/calculators/volume-of-sphere-calculator.php this the link for the marth calculate
find the volume of a sphere. Only a single measurement needs to be known in order to compute the volume of a sphere and that is its diameter. For example, if the diameter is known to be 20 feet, then calculate the volume by using the first formula above to get 4/3 x 3.14159 x (20/2) 3 = 4.1866 x 1000 = 4188.79 ft 3 (cubic feet).
A cereal box is 7 1 2 inches long, 2 1 2 inches wide, and 12 inches high. What is the volume of the box?
Answer:
1811328
Step-by-step explanation:
712 x 212 x 12
Answer and Step-by-step explanation:
To find the volume, multiply the length by the width, then multiply that product by the height.
(We use 7.5 and 2.5 because that is the same as 7 and one half ([tex]7 \frac{1}{2}[/tex]) and 2 and one half ([tex]2 \frac{1}{2}[/tex]))
7.5 × 2.5 × 12 = V
18.75 × 12 = V
225 [tex]in^3[/tex] = V -- This is the answer.
#teamtrees #PAW (Plant And Water)
Find the missing length
Answer:
c = 37
Step-by-step explanation:
Pythagorean thm formula:
a² + b² = c²
Given:
a = 12
b = 35
Work:
a² + b² = c²
12² + 35² = c²
144 + 1225 = c²
c² = 1369
[tex]\sqrt{c^2} =\sqrt{1369}[/tex]
c = 37
Answer:
[tex]c=37in.[/tex]
Step-by-step explanation:
We have to use the Pythagorean theorem here
[tex]a^{2} +b^2=c^2[/tex]
So,
[tex]12^2+35^2=c^2[/tex]
[tex]144+1225=c^2[/tex]
[tex]1369=c^2[/tex]
Now, we need to find the square root of 1369
[tex]\sqrt{1369} =\sqrt{c^2}[/tex]
[tex]37=c[/tex]
Hope this helps.
At two digits is such that the Sum of its to digits is ten. if the digit are reversed the number formed exceed the original number by 18. Find the number
Answer:
46
Step-by-step explanation:
the number is 46
need help with trigonometry
Answer:
Step-by-step explanation:
Let us first find the hypotenuses of the right triangle.
[tex]c=\sqrt{12^2+9^2} =\sqrt{225} = 15[/tex]
[tex]sin(theta) = 12/15 = 4/5\\cos(theta) = 9/15 = 3/5\\tan(theta) = 12/9 = 4/3\\csc(theta) = sin(theta)^{-1} = 5/4\\sec(theta) = cos(theta)^{-1} = 5/3\\cot(theta) = tan(theta)^{-1} = 3/4[/tex]
Express the following decimal as a fraction. ONLY ANSWER IF YOU KNOW THE ANSWER
Answer:
that would be 67/125 easy
Answer:
537/1000
Step-by-step explanation:
that number rounded is 0.537 because every number after is a 6 so you round it up and it cannot be simplified any further
- 12. What is the greatest common factor of 120 and 84?
e.
a. 3
b. 6
12
18
d.
Answer:
12 (the third one is the greatest common factor of 120 and 84)
Answer:
12
Step-by-step explanation:
factors of 120. 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,80,120
factors of 84: 1,2,3, 4,6,7,12,14,28,42,84
greatest common factor=12
Ignore the rotation 90 clockwise
Answer:
A reflection about y=x
Step-by-step explanation:
The 4 transformations are
TranslationRotationReflectionDilationLet eliminate which ones won't work.
A translation wouldn't flip the triangle in a different direction after translating it so we won't translate it.
A dilation changes the length for the triangle but the triangles are congruent so we won't dilate it.
A rotation about the orgin wouldn't work nor a specific point so a rotation isnt going to work.
A reflection will work so what will we reflect about.
Some corresponding coordinates are5,6 and 7,61,6 and 7,23,8 and 9,4.A reflection makes a reflected point equidistant from the line of reflection and their original point is equidistant from line of reflection.
So let find the midpoint of all the points and find a line where all of them are on.
The midpoint respectively are
6,64,46,6Let find the line that includes both these points.
[tex] \frac{6 - 4}{6 - 4} = \frac{2}{2} = 1[/tex]
So this means our slope is x. The y value corresponds with the x value so the answer is
[tex]y = x[/tex]
So the answer is
"A reflection about y=x
which of the following is the equation of a line that would be perpendicular to the line whose equation is y=2x-5? helppp they're for finals
A. y=-2x+4
B. y=-1/2x+4
C. y=2x+4
D. y=-1/2x+4
If MNLP, then 2 _____ 3. Choose the relationship symbol to make a true statement. < > =
Answer:
The answer is > (greater than)
Step-by-step explanation:
It is > because if MN is the larger side and the largest angle would be across from the largest side, then that would make the largest angle, angle 2 and that would in turn make 3 the smaller angle. I know this is correct because I got it right.
An earthquake strikes in an isolated area is without food or water. Three crews arrive. One can dispense needed supplies and 35 hours, a second and 70 hours, and a third in 10 hours. How long will it take all three crews working together to dispense food and water?
Answer:
115 hours.
Step-by-step explanation:
35+70=105
105+10=115 hours
What is the y-value when x = 6?
Answer:
poooop
Step-by-step explanation:
ahhh this is easy first eat pizza then poop easy
please help need to solve this fastt
Answer:
1979
91%
Step-by-step explanation:
Given the relation :
P = (318t + 6792) / (1.19t + 107.36)
P = % of household with PC
t = years since 2000
1.) We need to find t, when P = 85%
P = 0.85
0.85 = (318t + 6792) / (1.19t + 107.36)
0.85(1.19t + 107.36) = (318t + 6792)
1.0115t + 91.256 = 318t + 6792
Collect like terms :
1.0115t - 318t = 6792 - 91.256
−316.9885t = 6700.744
t = 6700.744 / - 316.9885
t = - 21.138760
t = - 21 years
2000 - 21 years = 1979
Percentage who had computer in 2014
t = 2014 - 2000 = 14
P = (318(14) + 6792) / (1.19(14)+ 107.36)
P = (4452 + 6792) / (16.66 + 107.36)
P = 11244 / 124.02
P = 90.6627
P = approximately 91%
ANSWER ASAP IM BEING TIMED
WILL GIVE BRAINLIEST IF UR CORRECT AND IF I GET AN A ILL DO A FREE POINT GIVEAWAY
Choose the correct classification of 5x + 3x4 − 7x3. (5 points)
Third degree polynomial
Fourth degree trinomial
Sixth degree polynomial
First degree binomial
Answer:
option b
Step-by-step explanation:
fourth degree trinomial
Picture is in problem below. Will mark brainliest.
Answer:
July 16
Step-by-step explanation:
The way to solve this problem is to look carefully at the question and then work through each statement in turn and see what we can deduce from it.
From the question we know that Albert has been told May, June, July or August.
Bernard has been told 14, 15, 16, 17, 18, or 19.
Albert: I don't know when Cheryl's birthday is, but I know that Bernard does not know too.
Bernard has been told the day of Cheryl's birthday. There are only two days, 18 and 19 that appear once on Cheryl's list. This means that Cheryl's birthday cannot be May 19th or June 18th as if it was then Bernard would know the answer.
Remember that Albert has been told a month and from the statement he knows that Bernard does not know the birthday. For Albert to be certain that Bernard does not know Cheryl's birthday, the month Albert had been told must not have been May or June.
Therefore Cheryl's birthday must fall in July or August.
Bernard: At first I don't know when Cheryl's birthday is, but I know now.
Based on the above Bernard has worked out that Cheryl's birthday is in July or August.
If Bernard now knows Cheryl's birthday the day he must have been told would be 15, 16 or 17. It cannot be 14 as this falls in both July and August and as such he wouldn't know Cheryl's birthday for certain.
Albert: Then I also know when Cheryl's birthday is.
Based on the above Albert has worked out that Cheryl's birthday is one of the following:
July 16
August 15
August 17
If Albert now knows for certain when Cheryl's birthday is he must have been told the month of July, as if it was August there would be two possible options.
Therefore the answer is July 16.
A=1/2 bh; solve for b
I need help anyone help me with this
Answer:
b=2A/h
Step-by-step explanation:
[tex]A = \frac{1}{2} bh \\ \\ \therefore \: 2 A = bh \\ \\ \therefore \: b = \frac{2 A}{h} [/tex]
Answer:
b = 2A/h
Step-by-step explanation:
To isolate b, you should first "get rid" of the 1/2. The best way to do this to multiply both sides of the equation by 2. The left side becomes 2A, while the right becomes bh (1/2 multiplied by its reciprocal, 2, becomes 1). Next, you have to move the h to the left side, and you could do so by dividing both sides by h. The left side becomes 2A/h, and the right is just b by itself, getting you b = 2A/h.
what is accounting? what is the target audience of accounting?
Solve the following system of equations using the elimination method 5x - y = 10 x + 3y = 4
Answer:
5x - y = 10x + 3y = 4
5x - y = 4..... 1
10x + 3y = 4.....2
multiply by -2 in eq 1 in both sides
-10x + 2y = -8
10x +3y = 4
eliminate one variable by adding the equations
5y = -4
y = - 4/5
sub the value of y in..1
5x - y = 4
5x + 4/5 = 4
5x = 16/5
divide by 5 on both sides
x = 16/25
(x ; y)
(16/25 ; -4/5)
Juanita is decorating for a birthday party. She buys more than 30 balloons and attaches 6 of them to the chair for the birthday girl. She also wants to attach balloons to each of the 4 tables, with the same number of balloons at each table. If n represents the number of balloons at each table, this situation can be represented by the inequality 6 + 4n > 30. What does the solution to this inequality represent? A. She must attach fewer than 6 balloons to each table. B. She can attach more than 6 balloons to each table. C. She must attach fewer than 9 balloons to each table. D. She can attach more than 9 balloons to each table
Find the greatest common factor of 65a^3b^4 and 39a^4b^5.
A) 13a^3b^4
B) 6a^7b^5
C) 13a^7b^9
D) 6a^4b^5
Answer:
the answer is 13a3b4. You’ll get the answer correctly. It’s not C
Step-by-step explanation:
