Answers
Answer:
A
Step-by-step explanation:
Volume of cylinder= πr²h, where r is the radius
Volume of concrete
= volume of large cylinder -volume of smaller hollow cylinder
Large cylinder:
Diameter= 7m
Since radius= ½(diameter),
Radius= 7 ÷2= 3.5m
Height= 3m
Volume of large cylinder
= π(3.5)²(3)
= 36.75π m³
Small hollow cylinder:
Diameter= 4m
Radius= 4 ÷2= 2m
Height= 3m
Volume of small hollow cylinder
= π(2)²(3)
= 12π m³
Substitute vol. of large and small hollow cylinder with 36.75π and 12π respectively, then substitute 22/7 for π:
Volume of concrete
= 36.75π -12π
= 24.75π
[tex] = 24.75( \frac{22}{7} ) \\ = 77.79 \: m^{3} [/tex]
( to 2 d.p.)
Related Questions
Find the percent to 125 centimeters to 87.5 centimeters
Answers
Answer:
1.428571428571429
Step-by-step explanation:
Answer: If you are asking how to subtract 125 centimeters and make it 87.5, you have to subtract from 125. The easiest way to do this is to subtract 87.5 from 125, getting 37.5. So, if you add 37.5 to 87.5, you will have 125. So, the correct answer is to subtract 37.5 to get 87.5.
Step-by-step explanation:
what are the numbers if the GCF of these numbers is 12? A) 24 and 36 B) 18 and 24 C)14 and 16 D) 12 and 21 explain please...
Answers
Answer:
Step-by-step explanation:
Factors of 12 are 1, 2, 3, 4, 6 and 12 ... ... because 2 × 6 = 12, or 4 × 3 = 12, or 1 × 12 = 12.
how are these 2 numbers different (image above)
Answers
Answer:
one of them has a dividend the other doesnt
Step-by-step explanation:
Suraj took a slice of pizza from the freezer and put it in the oven. The oven heated the pizza at a rate of 7.5^\circ7.5 ∘ 7, point, 5, degrees Celsius per minute, and it reached the desired temperature of 80^\circ80 ∘ 80, degrees Celsius after 121212 minutes.
Answers
Answer:
y = 7.5t - 10
Step-by-step explanation:
A linear equation is in the form y = mx + b, where y is a dependent variable, x is an independent variable, m is the rate of change and b is the value of y when x = 0.
Let y represent the temperature of the pizza and t represent the time the pizza spent in the freezer in minutes. Therefore:
y = mt + b
Since the oven heats the pizza at a rate of 7.5°C, therefore
y = 7.5t + b (we need to find b)
It takes 12 minute (t = 12) to reach a temperature of 80°C (y = 80), hence:
80 = 7.5(12) + b
80 = 90 + b
b = -10
This means that the initial temperature of the pizza when removed from the freezer is -10°C. The linear equation is:
y = 7.5t - 10
Zach is playing a video game. A penalty in Jupiter Battle is loss of 7 power points. Zach lost a total of 49 power points. How many times was Zach penalized
Answers
Answer:
Number of penalties= 7
Step-by-step explanation:
Giving the following information:
A penalty in Jupiter Battle is a loss of 7 power points. Zach lost a total of 49 power points.
To calculate the number of penalties, we need to use the following formula:
Number of penalties= total point lost / 7
Number of penalties= 49/7
Number of penalties= 7
The volume of a cube is given by the formula V=S3 Find the Volume when each side of the cube is 3 1/2 inches. Question 4 options: Blank # 1 Blank # 2 Blank # 3
Answers
Answer:
V = 343/8 cubic inches
Step-by-step explanation:
Here, we want to find the volume of the cube given the length of its side
Mathematically, the volume of a cube is L^3
where L represents the length of one of its side.
3 1/2 = 7/2 inches
Thus we have; 7/2 * 7/2 * 7/2 = 343/8 inches cube
Help plssssssssssssss I very confused
Answers
Answer:
C.
Step-by-step explanation:
Because the denominator will be 8-8 = 0
During a 20% off sale, the sale price of a radio was $35.96.
What was the regular price of the radio?
Answers
Answer:
43$
Step-by-step explanation:
It's either 43$ or you could put down 43.15
Answer:
44.95
Step-by-step explanation:
im pretty sure that's it
Please answer im times !!!!!
Answers
Answer:
Rational, irrrational, and rational.
Step-by-step explanation:
Answer:
5=rational
-7.641=rational
17=irrational
rational
Step-by-step explanation:
Dante wrote several equations and determined that only one of the equations has infinitely many solutions. Which of these equations has infinitely many solutions?
6 (x + 3) + x = 7 x + 2 + 1
6 (x + 3) + x = 7 x + 5
6 (x + 3) + x = 6 x + 3 + 15
6 (x + 3) + x = 7 x + 9 + 9
Answers
Hope this helps!
9514 1404 393
Answer:
6 (x + 3) + x = 7 x + 9 + 9
Step-by-step explanation:
The equation will have an infinite number of solutions if the left side is equal to the right side. The left side in each case is 7x+18.
The right sides are (in the order shown) ...
= 7x +3
= 7x +5
= 6x +18
= 7x +18 . . . . . . matches the left side
The equation 6 (x + 3) + x = 7 x + 9 + 9 will have infinitely many solutions.
which phrase describes an unknown or changeable quantity?
a. 60 seconds multiplied by 5
b. 3 dollars and 76 cents
c. 2 times the number of pages in a book
d. 15 years of schooling
Answers
Answer:
c. 2 times the number of pages in a book.
Step-by-step explanation:
this would be represented by 2n.
We do not know how many pages there are.
3+3/2x+4=4x-5/2x plz help
Answers
Answer:
[tex]x1 = \frac{7 - \sqrt{113} }{8} \\ x2 = \frac{7 + \sqrt{113} }{8}[/tex]
Step-by-step explanation:
or you can write + and - in the same equation but you can write it exact what I did
8x-2=-9+7x plz answer quick brainiest to who gets it first.
Answers
Answer:
x=-7
Step-by-step explanation:
8x-2=-9+7x
8x=-7+7x
1x=-7
x=-7
Answer: x=-7
Step-by-step explanation: add 2 to both sides
8x=-7+7x
subtract 7x from both sides
x=-7
Check it 8(-7)-2=-9+7(-7)
8(-7)=-56
-56-2=-58
9+7(-7)
7(-7)=-49
-49+-9= -58
It checks out hope this helps ^_^
Alonzo has a batting average of 0.325 and his best friend Archie has an average of 0.299. How much higher is Alonzo's batting average than Archie's average?
Answers
Answer:
0.026
Step-by-step explanation:
simply do 0.325-0.299
What is the answer I don’t want to fail.
Answers
Answer:
B) 132
Step-by-step explanation:
12 * 11 = 132
Answer:
132
Step-by-step explanation:
99/9= 11
132/11=12
Divide.
46)532
Enter your answer in the boxes.
R.
I need help fast I need the answer and remander
Answers
Answer:
11 remainder 26
Step-by-step explanation:
Juan is rewriting the expression 12 d minus 26 c as a product. Which statements about the expression are accurate and relevant to his rewriting the expression? Select two options.
Answers
Complete question :
Juan is rewriting the expression 12 d minus 26 c as a product. Which statements about the expression are accurate and relevant to his rewriting the expression? Select two options. The GCF of the numbers in each term in the expression is 2. The GCF of the numbers in each term in the expression is 4. The GCF of the variables in each term in the expression is cd. The factored expression is 2 (6 d minus 13 c). The factored expression is 2 c d (6 minus 13).
Answer:
The GCF of the numbers in each term in the expression is 2.
The factored expression is 2 (6 d minus 13 c).
Step-by-step explanation:
The two numbers being written are :
12d ; - 26c
Then greatest common factor of the Coefficients is :
Factors of
12 : 1, 2, 3, 4, 6, 12
26 : 1, 2, 13
Hence, the greatest common factor is 2.
Expressing 12d and - 26c as a product :
12d * - 26c
Factorizing :
2(6d - 13c)
Answer:
A and D
Step-by-step explanation:
I did the test
–4(x – 26) = –200
x =
Answers
Answer:
x = 81
Step-by-step explanation:
With this equation, you would first want to multiply -4 to x and -26.
Your new equation is now -4x + 124 = -200
You would then subtract 124 from both sides leaving you with
-4x = -324
Finally, you would divide both sides by -4, leaving you with
x = 81
I hope this helps!
Simplify: (-207-2) - (-8)
I really need it as fast as possible plz answer it
Answers
Answer:
The answer is -201
hope this helps plz mark as the brainliest
Answer:
-201
Step-by-step explanation:
Credit card companies target 18-21 year olds. How can you ensure you don’t fall prey to their advertising tactics and open a lot of credit accounts?
Answers
Answer:
?
Step-by-step explanation:
Three friends all live on the same street that runs out west to east. Beth lives 5 blocks from Ann. Carl lives 3 blocks from Beth. If the street id represented by a number line and Ann’s house is located at 1, which is NOT a possible location for Carl’s house?
A. 3
B. -7
C. 8
D. -4
Answers
Answer:
b
Step-by-step explanation:
3. A study team is discussing multiplying integers.
Scott says, "Two negatives multiply to make a negative and two positives multiply to make a positive."
Aaron says, "No, it depends on what there are more of', like -10(3) is negative, but 5(-2) is positive."
Zachary says, "If the signs are the same it is positive, but if they signs are different, the product is
negative."
Tina disagrees. "The sign of the product is the sign of the first number being multiplied."
Who, if anyone, is correct? Give at least three examples to illustrate the concept these students are
debating.
Answers
Answer:
Zachery
Step-by-step explanation:
Which of the following best shows the commutative property of multiplication? Group of answer choices 4 x 3 = 4 ÷ 1/3 4 x 3 = 4 4 x 3 = (2 x 2) x 3 4 x 3 = 3 x 4
Answers
Answer:
4 x 3 = 3 x 4
Step-by-step explanation:
8(x + 3 x) = 40
8( ) = 40
Answers
Answer:
8 ( 4x ) = 40.
Hey so uh I need help with the problem below, please answer the question, and also please explain too, thank you
Answers
help me find th area of this
Answers
Answer:
but how to help
Step-by-step explanation:
Answer:
explain more
Step-by-step explanation:
136
solutions of x^2-4=0
Answers
Answer:
x^2 - 4 = 0
x^2 = 4
x^2 = +- 2
x = -2 x=2
You can represent the measures of an angle and its complement as x° and (90 − x)°. Similarly, you can represent the measures of an angle and its supplement as x° and (180 − x)°. Use these expressions to find the measures of the angles described. The measure of an angle increased by 62° is equal to the measure of its complement
Answers
The measure of the angle is 14 degrees and the measure of its complement is 76 degrees
3. What do I do to an image if I am given this translation:
P (x, y) – > P' (x + 3, y - 1)
O Move right 3, down 1
O Move right 3, up 1
O Move left 3, down 1
O Move left 3. up 1
Answers
Answer:
Move right 3, down 1
Step-by-step explanation:
^^^
You and your friend play a video game. You have a final score of 20 points, and your friend has a final score of −10 points. By how many points did you win?
Answers
Answer:
30
Step-by-step explanation:
if your friend has negative ten points and you have twentie then you also count the extra ten with the negative. hope this helps.
