Answers
Answer:
The area of the lateral surface of the cube is 12.96 cm²
Step-by-step explanation:
The lateral surface area
4 × (1.8 cm)²
An objects lateral surface are the surfaces of the object that exclude the top and bottom surfaces
In a cube, the lateral surface are the vertically oriented (with respect to the base and the top which are then oriented horizontally) surfaces of the cube
Therefore, the lateral surface area of the cube consist of four vertically oriented equal sized faces, each with side 1.8 cm
The area of the lateral surface of the cube = The area of the four vertically oriented faces of the cube
∴ The area of the lateral surface of the cube = 4 × 1.8 cm × 1.8 cm = 12.96 cm.²
Related Questions
7 1/2 divided by 3/4 ?
= 5
= 4
= 7
= 10
Answers
Answer:
10
Step-by-step explanation:
Solve for b.
-t = 9(t - 10)
(WILL GIVE BRAINLIEST)
Answers
Answer:
Do you mean solve for t?
If you do, the answer is 9.
Step-by-step explanation:
If we expand the equation out, we get:
-t = 9t - 90
If we move the -90 over to the left side and the -t to the right side, we get:
90 = 10t
Dividing both sides by 9, we get:
t = 9
The anser is this and its easy first multiply
Using the formula of A=Pi x r^2 or r= d/2
Answers
9514 1404 393
Answer:
9π ≈ 28.3 square meters
Step-by-step explanation:
Using the given formula for the area of the circle, we find its area to be ...
A = πr^2
A = π(3 m)^2 = 9π m^2 ≈ 28.3 m^2
The dog has about 28.3 square meters to run around in.
HELP PLS ill mark u brainliest
Answers
Answer:
11
Step-by-step explanation:
Since angle 11 is next to angle 12, and they should add up to 180 degrees, which makes them supplementary angles.
Answer:
The person above me is right
Are adjacent angles ever congruent?
Answers
Factor this polynomial.
-3x^2-16x- 5
Answers
Answer:
B. [tex]-(3x+1) (x+5)[/tex]
Step-by-step explanation
factored the equation to solve. Hope this helps!
Which system of linear equations appears to have a solution of (-1, 4)?
4ty
2
2
2
4
Answers
Answer:D
Step-by-step explanation:
I think your question is missed of key information, allow me to add in and hope it will fit the original one.
Please have a look at the attached photo.
My answer:
A solution is (-1,4) means that point of intercept is (-1,4)
<=> when x=-1 so y = 4 for both equations
From the 4 possible answers, only graph D meets the requirement.
Hope it will find you well
Answer:
Post a picture?
Find the value of x in the isosceles triangle
Answers
Step-by-step explanation:
Since all 3 sides of the triangle is equal, it is not only an isosceles, but an equilateral triangle.
x = 8sin60° = 6.928 or sqrt48.
That is a question about triangles.
In my answer I will show 2 ways to solve that question, ok? Let's go.
First way - Pythagoras's theoremThe line segment x divide the biggest triangle in 2 equals right triangles.
Let's choose one of them and note that is a triangule with hypotenuse equals to 8 and one cathetus equals to half of 8.
The Pythagoras's theorem says that:
[tex]\boxed{a^2 = b^2 + c^2}[/tex]
a is the hypotenuse and b and c are cathetus.
So, in our case, we know the hypotenuse and one cathetus, let's substitute that in the expression:
[tex]a^2 = b^2 + c^2\\8^2 = 4^4 + c^2\\64 = 16 + c^2\\c^2 = 64 - 16\\c^2 = 64 -16\\c^2 = 48\\c = \sqrt{48}\\c= 4\sqrt{3}[/tex]
Therefore, the value of x is [tex]4\sqrt{3}[/tex].
Second way - The equilateral triangle heightThat way to solve the question is a consequence of the previous way.
That triangle has all the sides equals, so it is a equilateral triangle.The line segment x is the height of that triangle. And we can find the equilateral triangle height using that expression:
[tex]\boxed{h = \frac{S\cdot \sqrt{3} }{2} }[/tex]
h is the height and S is the triangle's side.
So, we know that the side of our triangle is 8. Let's change S value in the expression:
[tex]h = \frac{S\cdot \sqrt{3} }{2} \\h = \frac{8\cdot \sqrt{3} }{3} \\h = 4\sqrt{3}[/tex]
Thus, the value of x is [tex]4\sqrt{3}[/tex].
Note that in the 2 ways we find the same result, so that answer is correct.
I hope I've helped. :D
Enjoy your studies! \o/
can you help me the first person will get brainliest
Answers
Answer:
put the equations in tiger math
Step-by-step explanation:
but other than that have a good day !! goodluck with everything
write in slope intercept form
through (4,-1), parallel to y=x
Answers
Answer:
y=x-5 is parallel to y=x
Step-by-step explanation:
I need this awser noww and I forget how to do it !! please help!
SIMPLIFY:
[tex]6 \sqrt{2} \times 5 \sqrt{2} [/tex]
Answers
Answer:
6√2 × 5√2 = 60
Step-by-step explanation:
6√2×5√2
6×5×√2×√2
30×(√2)². since √2²=2
30×2
60 Answer
HOPE IT HELPS YOU
MARK ME AS BRAINEST
1. What is the area of a circle with a a diameter of 20 cm in terms of pi?
2. What is the area of a circle with a radius of a 8 yd using 3.14 as pi?
3. The area of a circle in terms of pi is 49pi. What is the radius of the circle?
Help needed and it would be appreciated
Answers
Answer:
1. 100pi cm
2. 200.96 yd
3. 7
Step-by-step explanation:
1.) diameter = radius multiple by two (D = r × 2)
&
radius = diameter divided by two (r = D ÷ 2)
So
20 ÷ 2 = 10 => A = pi (10)power 2 => A = 100pi
---------------------------------------------------------------------------------------------
2.) 3.14 × (8)power2 =200.96
---------------------------------------------------------------------------------------------
3.) A = 49pi => 49pi = pi(r)power2
[ cross out the pi from both sides]
And your left with
49 = (r)power2
[square root both sides to get rid of the power]
And your left with
7 = r
Which statements are true about points A, B, and C? Check all that apply.
theres more then one answer.
The coordinates of point A are (3, –3).
The coordinates of point B are (1, –3).
The coordinates of point C are (–2, 2).
Point C is the closest to the y-axis.
Points A and B are the same distance from the x-axis.
Answers
Answer:
A B C are all correct yuhh
Step-by-step explanation:
Janice paid $820 plus 7% sales tax for her airfare. How much did she pay in total for her airfare?
Answers
Answer:
877.40
Step-by-step explanation:
what is a prime number
Answers
Answer:
Step-by-step explanation:
Prime number is
Answer: Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11. By contrast, numbers with more than 2 factors are call composite numbers.
Step-by-step explanation:
Which table represents the function y = 4x - 3?
Answers
Answer:
B
Step-by-step explanation:
Answer:
Second table (B)
Input: 0, 1, 2
Output: -3, 1, 5
Explanation:
Given the 2D linear equation y = 4x - 3,
y must represent the output because it is the dependent variable, so x must represent the input because it is a independent variable.
Use the fact that 1.5 is the same as 3/2 to select all
of tile equations below that are equivalent to T=A^1.5
Answers
Answer:
It is all 4
Step-by-step explanation:
Answer:
all 4 , the next one is A
Step-by-step explanation:
Please help me if you can
Answers
Answer:
7. [tex]r^{19}[/tex]
Step-by-step explanation:
r^11 x r^8 =
r^11 + 8=
2^19
help me please I need help in math I suck and I need good grades
Answers
Answer:
The answer to the question provided is 60.
solve the simultaneous equations
5x-2y=4
3x-6y=6
Answers
x=0.5
y=-3/4
i’ll give u brainliest!! what is the shape of 1, 2 and 3
Answers
Answer:
1.81.34
2.96.04
3.110.41
Step-by-step explanation:
Answer:
Shape 1: 96.04
Shape 2: 110.41
Shape 3: 75.43
Step-by-step explanation:
For shape 1, you can do 9.8*9.8 and get the answer of 96.04. For shape 2, you can do 6.1*18.1 to get the answer of 110.41. Finally for shape 3, you can find the whole circle and divide it by 4 because it is only a quarter of the circle. The radius being 9.8, you then get the area of 301.72. But since its only a quarter of a circle you divide by 4 and get 75.43.
What is the slope of line P? And then what is the slope of line Q?
Answers
Slope of q = -3
Q= -3/1
Rise over run q is going to the left so it’s negative
Rectangle describe in your own words
Answers
Answer:
A shape with four sides with two being longer than the other two?
Step-by-step explanation:
Answer:
A geometric shape with two sets of paralel lines joined by 4 vertexes.
how do yo do this question I have to
Solve the System by Substitution:
y = x-2
x + y = 4
Answers
1) Positive, negative, zero or undefined?
Answers
Answer:
I would say zero or undefined
Step-by-step explanation:
Answer:
c, zero slope
5 12 14 will form a acute?
True or false
Answers
No it won't. it's false
cuz proofs here.
(5²)+(12²)= (169)
√(169) = 13
.. so if 13 was the number at 14
it would have been true.
currently the answer is false
Solve for X. The triangles are similar
Answers
Answer:
Step-by-step explanation:
B
B. 9
Step-by-step explanation:
35-25=10
65+10=75 (8x+3=75)
8x+3=75
8x=72
x=72/8
x=9
Edward plans to put $75 into a savings account. He can place his money into an account represented by b(x) = 7x + 75, or into another account represented by c(x) = 75(1.06)x. Which account has the highest value in 2 years? Which account has the highest in 12 years?
Answers
Answer:
the answer is the option B
b(x) has the highest value in years; b(x) has the highest value in years
Step-by-step explanation:
x------> the time in years
b(x)----> the value in dollars of a saving account
c(x)----> the value in dollars of another account
we know that
Step 1
Find the value of each account for
so
----> b(x) has the highest value in years
Step 2
Find the value of each account for
so
----> b(x) has the highest value in years
Select the reason why these triangles are
similar. If they are not, select "Not similar".
A. AA
B. SAS
C. SSS
D. Not similar
Answers
Answer:
B. SAS
Step-by-step explanation:
In the given diagram, it would be observed that each side of the bigger triangle are multiplied by a factor of [tex]\frac{1}{3}[/tex] to give the values of each corresponding sides of the smaller triangle. But the included angle of the two triangles are the same.
Therefore, the reason why the triangles are similar is because of side-angle-side (SAS) relations. The correct option is B.
Answer:
SAS
Step-by-step explanation:
Just Because.
Use the expression 14x + 28y + 21
(Answer both questions below)
Part A: What is the greatest common factor of the expression?
Part B: Factor the expression
Answers
Answer:
A) 7 is the greatest common factor of the expression.
B) factoring the expression [tex]14x + 28y + 21[/tex] we get [tex]\mathbf{7(2x+4y+3)}[/tex]
Step-by-step explanation:
We are given the expression: [tex]14x + 28y + 21[/tex]
Part A: What is the greatest common factor of the expression?
We need to find the greatest common factor of the expression.
The expression is divisible by 7
So, 7 is the greatest common factor of the expression.
Part B: Factor the expression
We need to factor the expression: [tex]14x + 28y + 21[/tex]
Taking 7 common:
[tex]14x + 28y + 21\\=7(2x+4y+3)[/tex]
So, factoring the expression [tex]14x + 28y + 21[/tex] we get [tex]\mathbf{7(2x+4y+3)}[/tex]