Answer: The definition of an example of expression is a frequently used word or phrase or it is a way to convey your thoughts, feelings or emotions. An example of an expression is the phrase "a penny saved is a penny earned." An example of an expression is a smile.
Step-by-step explanation:
Before there was any life on Earth, which gas was absent from the ancient atmosphere?
A.nitrogen
B.ammonia
C.oxygen
D.methane
please answer lol
GIVING BRAINLIEST! Please help.
A wooden right circular cylinder with diameter 9 cm and height 9 cm is topped with a hemisphere. The surface area, in cm^2, of the resulting shape is...
a) 141.75pie
b) 182.25pie
c) 162pie
d) 405pie
e) 18.25 + 60.75pie
Answer: answer is d
Step-by-step explanation:
i would explain but im helping 7 other people rn
Subtract 2x2 – 1 from 4x2 + 2
Answer:
5 ig
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
4x2= 8
8+2= 10
------
2x2 = 4
4-1=
3
-----
10-3=7
A store is selling a backpack thats is a wholesale price of $8.50. They marckup price is 50%. What did they sell the backpack for?
Answer:
$12.75Step-by-step explanation:
[tex]8.5+50\%\times8.5=8.5+0.5\times8.5=8.5+4.25=12.75[/tex]
HELP PLS HELP HELP HELP THIS IS ASAP
pls help will mark brainliest !
Answer:
third and fourth one.
Not sure tho
Pls I need help :) it’s due today
Answer:
nine is the area I think
Step-by-step explanation:
base times height is width
Answer:
27 in. ^2
Step-by-step explanation:
Ok. Let's start by reflecting on what the definition of lateral area is. In this case, it's all the faces except the 2 equilateral triangle faces. So, let's find the rectangular faces. Length for all of them is 9, width for all of them is 1. So, area is 9 for all 3 lateral faces. 3*9=27.
In triangle ABC, the sum of the measures of angle A and angle B is 120. The sum of the measures of angle B and C is 110. Find the measure of the greatest angle of the triangle.
Answer:
70
Step-by-step explanation:
the sum of the three is 180, so c is 60, a is 70, and b is 50.
i need help on number 8
Answer:
Step-by-step explanation:
3.8
Hope it helps
Please mark brainest
Alvin is 14 years older than Elga. The sum of their ages is 56. What is Elga's age?
Answer:
Elga is 32 years old.
Step-by-step explanation:
Let Alvin's age = A
Let Elga's age = E
Alvin is 10 years younger than Elga, so A = E - 10
The sum of their ages is 54, so A + E = 54
Replace the A in the second equation with E - 10, then solve for E.
A + E = 54 becomes (E - 10) + E = 54
Combine like terms
2E - 10 = 54
Add 10 to both sides
2E = 64
Divide both sides by 2
E = 32
Simplify
5 + 2(3x − 4) − x
[tex]5x - 3[/tex]
Step-by-step explanation:
1) Expand by distributing terms.
[tex]5 + 6x - 8 - x[/tex]
2) Collect like terms.
[tex](5 - 8) + (6x - x)[/tex]
3) Simplify.
[tex] - 3 + 5x[/tex]
4) Regroup terms.
[tex]5x - 3[/tex]
Therefor the answer for this equation will be, 5x - 3.
Answer:
5x-3
Step-by-step explanation:
distribute 2 to 3x and -4
then you get 5+6x-8-x
combine like terms
5-8; 6x-x
you get: 5x-3
hopes this helps
how to solve this please help and ill give brainlest to ppl
Work out the size of angle x
Answer:
angle x=10
Step-by-step explanation:
HELP ASAP GIVING BRAINLIEST
Answer:
5: c, 3: a
Step-by-step explanation:
Just carpet has eight different quality grades of carpeting. Three types are being selected for a corporate test on durability. how many different samples of size 3 can be taken without replacement? how many different samples of size 5 can be taken without replacement?
Answer:
When we have a set of N elements, the number of combinations of K elements (such that N ≤ K) from these N elements is:
[tex]C(N, K) = \frac{N!}{(N - K)!*K!}[/tex]
Then if we have 8 different types of carpet, and we want to see how many different samples of 3 types we can choose, we just need to replace N by 8, and K by 3 in the above equation:
[tex]C(8, 3) = \frac{8!}{(8 - 3)!*3!} = \frac{8!}{5!*3!} = \frac{8*7*6}{3*2} = 56[/tex]
So there are 56 different samples.
Now we can do the same, but this time we want to use 5 types of carpet, then we will have K = 5.
[tex]C(8, 5) = \frac{8!}{(8 - 5)!*5!} = \frac{8!}{3!*5!} = 56[/tex]
Again, we have 56 different samples.
Pls help me i need your help to do it pls
Answer: 39°
Step-by-step explanation:
This is a right triangle, meaning one of the angles is a 90° angle. Angle CBA in this case is the 90° angle. In order to figure out the measure of ABD, you subtract the measure of CBA by the measure of CBD, which is 51°.
90 - 51 = 39
Thus, the measure of ABD is 39°
Help please I don’t get it
Answer:
B
Step-by-step explanation:
when the arrow is pointing toward the left side that means less than side. When the arrow is pointing towards the right side that means greater than.
Answer:
B, because that symbol means at least so you would go to the negative side which is on the left it has to start from 4 which is correct and this means negative: - The 0 is the origin so from the origin to the left side is negative from the origin to the right side is positive you want to look for negative because it's negative 4.
help me for brainlist please amelias
Answer:
b. V = 336 ft³
Step-by-step explanation:
[tex]V = \frac{1}{2}bhl\\b = 14\\h = 8\\l = 6\\V = \frac{1}{2}(14)(8)(6)\\V = 336 ft^{3}[/tex]
what is the area of a right triangle with a height of 8.9cm and a base of 14.3cm
Please help with this it’s 1 month due and I’m stressing out
Answer:
[tex]1\frac{3}{5}[/tex] or 1.4 as a decimal
since i don't know which way you need
Step-by-step explanation:
what is 3r + n^2 + 3n + r + 5 + 2n + 2 simplified?
Answer: n^2+5n+4r+7
Step-by-step explanation:
can someone help me with this?! thanks!!
Answer:
you literally just translate each shape by the number of squares specified.
Step-by-step explanation:
for example, move shape 1 5 squares to the right, then 4 down. it will be in the middle area of quadrant 1 (where it already is).
Answer:
hope this helps you out good luck
A rectangular piece of land has an area of 3/4 square mile. The land is 2 1/2 miles long. What is its width
Given:
A rectangular piece of land has an area of [tex]\dfrac{3}{4}[/tex] square mile.
The land is [tex]2\dfrac{1}{2}[/tex] miles long.
To find:
The width of the rectangular land.
Solution:
We have,
Area of a rectangle = [tex]\dfrac{3}{4}[/tex] square mile.
Length = [tex]2\dfrac{1}{2}[/tex] miles
We know that, area of a rectangle is
[tex]A=l\times b[/tex]
[tex]\dfrac{3}{4}=2\dfrac{1}{2}\times b[/tex]
[tex]\dfrac{3}{4}=\dfrac{2(2)+1}{2}b[/tex]
[tex]\dfrac{3}{4}=\dfrac{5}{2}b[/tex]
Multiply both sides by [tex]\dfrac{2}{5}[/tex], we get
[tex]\dfrac{2}{5}\times \dfrac{3}{4}=\dfrac{2}{5}\times \dfrac{5}{2}b[/tex]
[tex]\dfrac{6}{20}=b[/tex]
[tex]\dfrac{3}{10}=b[/tex]
Therefore, the width of the land is [tex]\dfrac{3}{10}[/tex] miles.
find the missing lengths of the sides.
Given:
The figure of a right angle triangle.
[tex]a=b[/tex]
Hypotenuse = [tex]9\sqrt{2}[/tex] in.
To find:
The missing lengths of the sides.
Solution:
In the given right angle triangle both legs a and b are equal, and hypotenuse is [tex]9\sqrt{2}[/tex] in.
Using Pythagoras theorem, we get
[tex]Hyponteuse^2=Base^2+Perpendicular^2[/tex]
[tex](9\sqrt{2})^2=(a)^2+(b)^2[/tex]
[tex]81(2)=(a)^2+(a)^2[/tex] [tex][\because a=b][/tex]
[tex]81(2)=2(a)^2[/tex]
Divide both sides by 2.
[tex]81=(a)^2[/tex]
Taking square root on both sides.
[tex]\pm \sqrt{81}=a[/tex]
[tex]\pm 9=a[/tex]
Side cannot be negative. So,
[tex]9=a[/tex]
Thus, the missing side lengths are a=9 in and b=9 in.
Therefore, the correct option is C.
ANSWER ASAP!!!
What are the coordinates of the point in Quadrant
IV on the coordinate plane??
a. (4,1)
b. (1,4)
c. (—4,5)
d. 5, —4)
Answer:
c
Step-by-step explanation:
got it right on edjenuity
A storekeeper increased the price of hats by 5%.
Write an equation to calculate the increase of the total
cost, c, when the price of a hat is p dollars.
Select all that apply.
A c 1.50p
BC-,95p
cc 1.05p
Dc-1 + 05p
Ec-(1 + .05)p
Answer: c = 1.05p
Step-by-step explanation:
Price of the hat = p
Percentage increase in the price of the hat = 5%
The equation to calculate the increase of the total cost, c, of the hat will be:
c = p + (5% × p)
= p + (5/100 × p)
= p + (0.05 × p)
= p + 0.05p
c = 1.05p
2. If LC = 10, find LH.
Answer:
20
Step-by-step explanation:
LC = 1/2 LH
2LC = LH
2(10) = LH
LH = 20
Answer:
20
Step-by-step explanation:
7 + x/4 = 15 x=___ help
7 + x/4 = 15
x/4 = 15 - 7
x/4 = 8
x = 8 · 4
x = 32
Answer: x=32
Step-by-step explanation:
Given
7+x/4=15
Subtract 7 on both sides
7+x/4-7=15-7
x/4=8
Multiply 4 on both sides
x/4 ×4=8×4
x=32
Hope this helps!! :)
Please let me know if you have any questions
3
2
1
4
-3
- 2
2.
4
-3
What is the slope of the line?
Answer:
The slope of the line is -3/1
Step-by-step explanation:
Using the rise over run method I calculated that the slope is -3/1 because every block that the line goes over it goes 3 down.
Answer:
Slope of the Line = 3.
PLEASE HELPPPPPPPP....?.......
If a+b=15 and ab=54 then find
1)
[tex] {a}^{2} + {b}^{2} [/tex]
2)
[tex](a - b )^{2} [/tex]
3)
[tex]a ^{2} - {b}^{2} [/tex]
Answer:
a = 9
b = 6
I hope you can do the rest yoyrself, as I coulsnt find how to type it out ;-;
Answer:
1) 117
2) 9
3) 45 or -45
Step-by-step explanation:
a=9
b=6
1) a²+b²=9²+6²=81+36=117
2) (a-b)²=(9-6)²=3²=9
3) a²-b²=81-36=45
It’s also possible that a=6 and b=9, in which case
1) (same)
2) (same)
3) 36-81=-45