This figure is a tetrahedron. What is the area of its base?
62.4 square units
36 square units
124.8 square units
22.4 square units
Answers
Related Questions
Margo can purchase tile at a store for $0.89 per tile and rent a tile saw for $12. At another store she can borrow the tile saw for free if she buys tiles there for $1.19 per tile. How many tiles must she buy for the cost to be the same at both stores?
Answers
Answer:
yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no yes no
Step-by-step explanation:
The soccer team scored 3 goals in their first game, 7 goals in the next game, and 2 goals in the third game.
What was the mean number of goals scored for the the games?
A. 2
B.3
C.4
D.5
E.7
Answers
3+2+7=12
12 divided by 3 equals 4.
Hope this helps!
Choose the symbol to make the following statement true. 4 yd. ___12 ft. A. C . =
Answers
Answer:
C. =
Step-by-step explanation:
Note the conversion for Yard to Feet.
1 yard = 3 feet.
In this case, it is given to you that there are 4 yards. Multiply 4 with 3 to get the amount of feet:
4 yd x 3 ft per yd = 12 feet per 4 yd.
12 ft. = 12 ft., ∴ 4 yd. = 12 ft.
can someone HEEEEEEEEEEEEEEEEEEELLLLLLLLLLLPPPPPP
Answers
Answer:
a = 7
Step-by-step explanation:
Write the equation with all the components.
97 (cost) = 8a +41
Isolate the variable.
97 = 8a + 41
-41 -41
56 = 8a
Divide both sides by 8.
You're left with 7=a and that's your answer. Hope this helps :)
Answer:
the answer is 52
Step-by-step explanation:
Please help me answer and actually answer
Answers
Answer:
the first one
Step-by-step explanation:
you can not see the exact amount of volunteers worked exactly 4hours
Marsha deposited $6,500 into a savings account 3 years ago. The simple interest rate is 2%. How much money did earn in interest?
Answers
Answer:
6,897.25$ raw
397.25$ earned
Step-by-step explanation:
6,500(.02) = 130 + 6500
6630(.02) = 132.6 + 6630
6762.6(.02) = 135.25 + 6762.6
6,897.25$
the Money he earns in interest is 390$ and his new account balance would be 6890$.
What is simple interest?Simple interest is the amount of interest charged on a specific principal amount at a specific interest rate. Compound interest, on the other hand, is the interest that is computed using both the principal and the interest that has accumulated over the preceding period.
given, Marsha deposited $6,500 into a savings account 3 years ago. The simple interest rate is 2%.
from the general formula of Simple interest:
Simple interest(SI) = p*r*t/100
where, p = principal amount
r = rate of interest
t = time
in our case
p = 6500, r = 2%, t = 3
Thus,
SI = 6500 * 2 * 3/100
SI = 390$
Thus total amount = 390 + 6500 = 6890
therefore, the Money he earns in interest is 390$ and his new account balance would be 6890$.
Learn more bout simple interests here:
https://brainly.com/question/22621039
#SPJ2
How are unit rates, constant of proportionality, and scale factors are related.
Answers
Which phrase matches the equation -3r + 5 = 28?
Group of answer choices
The product of negative three and a number plus five equals twenty-eight.
The sum of negative five plus three times a number equals twenty-eight.
The sum of three and a number times negative five gives twenty-eight.
The product of three times a number equals twenty-eight.
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When a coefficient is side by side with a variable it means to _______
Example: 4z
Answers
Answer:
After simplifying, the first step in solving an equation with a variable on both sides is to get the variable on one side. This is done by reversing the addition or subtraction of one of the terms with the variable
Karen went into a store, and came across 3 customers.
One customer had a chocolate bar that she 'needed'.
Karen took her to the manager and claims she stole the chocolate bar.
The manager checked the cameras.
Fortunately for the customer, there were X amounts of cameras in the candy isle.
In the meat aisle, there were 14 cameras (Definitely)
In the bread aisle, there were 2 cameras. (Makes total sense XD)
In the candy aisle, where the incident happened, there were twice as many cameras as in the meat aisle combined.
How many cameras had proof of the incident?
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Answer:
this question makes no sence but I'll go with 8
PLEASE PLEASE HELP ME
Jude graphed the inequality s
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Answer:
The graph is correct
Step-by-step explanation:
This is because the graph is representing all values that are less than -9 since the arrow is going to the left from the closed circle -9
How many solutions does this have?
Answers
Step-by-step explanation:
A i think try solving u will get x and y each one solution
What is the slope of the line on the graph? ill give brainlist
Answers
Answer: I guess the slope is m=-1/3
Step-by-step explanation: Hope it helps :)
PART A: complete the two-way frequency table
PART B: What statement about this is true?
A. More children then adult were surveyed
B. The same number if adults & children prefer fruit
C. More people prefer vegetables
D. More people prefer fruit
E. More adults than children prefer vegetables
PART C. complete the table using the information from the table from PART A
Answers
A store manager combines trail mix that is 30% raisins with a trail mix that is 55% raisins. He makes 800lb of trail mix that is 40% raisins. How many pounds of each trail mix does the manager use?
Answers
Answer:
320 pounds of 55% raisins trail mix
480 pounds of 30% raisins trail mix
Step-by-step explanation:
Sorry, I can’t write how I got the answer. We just did it in class and decided to help... (Btw, sorry if I’m too late)
The store manager mixed 320 pounds of 55% raisins trail mix and 480 pounds of 30% raisins trail mix.
Given that,
A store manager combines a trail mix that is 30% raisins with a trail mix that is 55% raisins.
He makes 800lb of trail mix that is 40% raisins.
We have to determine,
How many pounds of each trail mix does the manager use?
According to the question,
Let, x = pounds of trail mix 30% raisins
y = pounds of trail mix 55% raisins
The distributor wants to make 800 pounds of trail mix, thus:
x + y = 800
The mix must be 40% raisings as a combination of x and y, thus:
30x + 55y = 40 × 800
30x + 55y = 32,000
Divided by 5 the equation
6x + 11y = 6400
Solving both the equation
[tex]x + y = 800\\\\x = 800 -y\\[/tex]
Substitute the value of x in equation 2,
[tex]6x + 11y = 6400\\\\6 (800-y) + 11y = 6400\\\\4800 - 6y +11y = 6400\\\\5y = 6400-4800\\\\5y = 1600\\\\y = \dfarc{1600}{5}\\\\y = 320[/tex]
Substitute the value of x in equation 1
[tex]x + y = 800\\\\x + - 800 -y\\\\x = 800-320\\\\x = 480[/tex]
Hence, The store manager mixed 320 pounds of 55% raisins trail mix and 480 pounds of 30% raisins trail mix.
For more details refer to the link;
https://brainly.com/question/3228027
Giving brainliest for this one !!
( whoever answers the fastest and has a correct answer )
Answers
The line of best fit is shown on the scatter plot below. What is the equation of the line of best fit?
A: y=−5/4x+9
B: y=−1/2x+9
C: y=−5/4x−9
D: y=−x+9
Answers
you can eliminate c because the -9 would mean it would start below the x-axis. you can eliminate both a and b because the slope of the line can be shown as 1/1 which would just be x.
Which of the following best shows the distributive property?
Group of answer choices
2 + 3 = 3 + 2
2 + (2 + 3) = (2 + 2) + 3
2(2 + 3) = 2(5)
2(2 + 3) = 2(2) + 2(3)
Answers
Answer:
2+(2+3)= (2+2) +3
Step-by-step explanation:
Hope this helps
Answer: 2+(2+3)=(2+2)+3
if someone could answer at least one for me that would be awesome! TYYY :D
Answers
Explanation:
Use the area of a triangle formula which is, A=1/2bh. You will get A=1/2(6)(3).
Answer:
1. 672 inches
Step-by-step explanation:
Question #1
The formula for the volume of a triangular prism is:
V = [tex]\frac{bh}{2}[/tex]
Where V is the volume, b is the area of the base, and h is the height. You are given the volume and the height. Plug those numbers into your equation.
[tex]4704 = \frac{b(14)}{2}[/tex]
Now, solve for b. To do this, you must isolate the variable b.
The first step to do this is to multiply both sides by 2. This will get you:
4704(2) = 14b
9408 = 14b
Now, divide both sides by 14 to get:
672 = b.
Therefore, the area of the base is 672 inches.
Question #2
To solve this problem, separate the figure into 2 shapes. You have a triangle with a base of 6 cm and a height of 6 cm, as well as a semicircle with a radius of 3 cm.
After you do this, find the area of each shape separately.
The formula for the area of a triangle is:
[tex]A = \frac{bh}{2}[/tex],
where A is the area, b is the length of the base, and h is the height. You know the base and the height, so plug those into your equation. You will get:
[tex]A = \frac{6*6}{2}\\\\A = \frac{36}{2}\\\\A = 18[/tex]
Now you know that the area of the triangle is 18 cm^2.
Let's find the area of the semicircle.
The formula for the area of a semicircle is:
A = [tex]\frac{1}{2}[/tex]π[tex]r^2[/tex]
You know the radius, so plug that in to get:
A = [tex]\frac{1}{2}[/tex]π([tex]3^2[/tex])
A = [tex]\frac{1}{2}[/tex]π(9)
Simplify this to get:
A = 4.5π.
Now, either multiply 4.5 by π to get:
14.1371669412 cm^2
or, multiply 4.5 by 3.14 to get:
14.13 cm^2.
Then, add the area of the triangle, 18 cm^2, by the area of the triangle, 14.13, to get:
32.13 cm^2.
Hope this helps!
PLEASE HURRY!
Akira has $4,101 in a savings account. The interest rate is 4.5%, compounded annually. To the nearest cent, how much will she have in five years?
Please use the equation y=a(1+r)^t
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Answer:
i think its , Use y=a(1+r)^t; here y = $4101(1 + 0.04)^5 = $4989.49
sorry if im wrong
The function f(x)=21,500(0.86)^x models the value of a car after x years. What is the yearly depreciation rate of the value of the car?
Answers
Answer:
The car loses 14 percent of its value each year.
Step-by-step explanation:
subtract .86 from 1 to get the value of depreciation
Help pls Ill thank you and give you brainlist
Answers
Have a nice day
A triangle is translated by using the rule (x, y) right-arrow (x minus 4, y + 1). Which describes how the figure is moved?
Answers
Answer:four units left one unit up
Step-by-step
on a Cartesian plane
x increases positively as you move along the right side of the plane
and decreases as you move along the left side of the plane.
y increases positively as you go up the plane
and decreases as you move downward the plane.
Step-by-step explanation:
Which of the following points lies on the graph of this equation? y = -8x
A. (0, 0)
B. (1, 0)
C. (-1, -1)
D. (0, -8)
Answers
Answer:
d
Step-by-step explanation:
It just simply is. you know what i mean
Answer quickly please, I'm going to skip this question in 5 minutes if no answer!
Answers
Answer:
sorry i wouldve helped
answer quick and show work
gina will pay $14 for fabric at a craft store. the tax rate is 8.5%. how much will she pay for her fabric including tax
Answers
Answer:
$15.19
Step-by-step explanation:
Write an equation
8.5% of 14 =
Convert percent into decimal:
8.5% = 0.085
"Of" means to multiply so multiply 0.085 to 14
0.085 x 14 = $1.19
14 + 1.19 = $15.19
Answer:
$15.19
Step-by-step explanation:
Write an equation
8.5% of 14 =
Convert percent into decimal:
8.5% = 0.085
"Of" means to multiply so multiply 0.085 to 14
0.085 x 14 = $1.19
14 + 1.19 = $15.19
Hope this helps!
can i get a bit of help
4(2x^3y^4)^4
__________
2(2x^2y^6)^3
simplify and show work
Answers
Answer:
Step-by-step explanation:
Note the following: 2^4 = 16; (x^3)^4 = x^12; and (y^4)^4 = y^16
Then your 4(2x^3y^4)^4 becomes 4*16*x^12*y^16
Each statement describes a transformation of the graph of y = x. Which statement correctly describes the graph of y = x + 10?
A. It is the graph of y = x translated 10 units to the right.
B. It is the graph of y = x where the slope is increased by 10.
C. It is the graph of y = x translated 10 units up.
D. It is the graph of y = x translated 10 units down.
Answers
Answer:
C
Step-by-step explanation:
since it is the slope form y = mx+b
b = y axis
so in order to go up you have to translate upwards
hope this helped ;)
Sandy is upgrading her Internet service. Fast Internet charges $30 for installation and $46.45 per month. Quick Internet has free installation but charges $53.95 per month.
Complete the equation that can be used to find the number of months after which the Internet service would cost the same. Use the variable x to represent the number of months of Internet service purchased.
Answers
Answer:
uh 463.6.
Step-by-step explanation:
If the radius of a circle is 5, what is the circumference? Use π=3
Answer for prompt 1 If the radius of a circle is 5, what is the circumference? Use π=3
Answers
circumference formula: 2πr
given:
radius = 5 (r in the formula stands for radius)
π = 3
- simply pluggin what you have.
2πr
2(3)(5)
= 30
circumference = 30
-- let me know if you have any questions regarding this.