1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ierofanga [76]
3 years ago
9

A cylindrical tank has a radius of 15 feet and a height of 45 feet. How many cubic feet of water can the tank hold?

Mathematics
1 answer:
ch4aika [34]3 years ago
3 0
\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=15\\
h=45
\end{cases}\implies V=\pi \cdot 15^2\cdot 45
You might be interested in
Multiplying polynomials find the product (2a-1)(8a-5)
Yuki888 [10]
(2a-1)(8a-5)=2a\cdot 8a-2a\cdot 5-8a\cdot 1-5\cdot (-1)=\\ \\=16a^2-10a-8a+5=16a^2-18a +5


4 0
2 years ago
Read 2 more answers
I need help ASAP!!!!!!!
solmaris [256]

Answer: i think the answer is d or c im not to sure

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
7. Use the quadratic formula to find the solution(s). x² + 2x - 8 = 0​
morpeh [17]

Hey there!

<u>Use the quadratic formula to find the solution(s). x² + 2x - 8 = 0</u>

  • Answer :

x = -4 or x = 2 ✅

  • Explanation :

<em><u>Quadratic</u></em><em><u> </u></em><em><u>formula </u></em><em><u>:</u></em><em><u> </u></em>ax² + bx + c = 0 where a ≠ 0

The number of real-number solutions <em>(roots)</em> is determined by the discriminant (b² - 4ac) :

  • If b² - 4ac > 0 , There are 2 real-number solutions

  • If b² - 4ac = 0 , There is 1 real-number solution.

  • If b² - 4ac < 0 , There is no real-number solution.

The <em><u>roots</u></em> of the equation are determined by the following calculation:

x =  \frac{ - b \pm  \sqrt{ {b}^{2} - 4ac } }{2a}

Here, we have :

  • a = 1
  • b = 2
  • c = -8

1) <u>Calculate </u><u>the </u><u>discrim</u><u>i</u><u>n</u><u>ant</u><u> </u><u>:</u>

b² - 4ac ⇔ 2² - 4(1)(-8) ⇔ 4 - (-32) ⇔ 36

b² - 4ac = 36 > 0 ; The equation admits two real-number solutions

2) <u>Calculate </u><u>the </u><u>roots </u><u>of </u><u>the </u><u>equation</u><u>:</u>

▪️ (1)

x_1 =  \frac{ - b -  \sqrt{ {b}^{2}  - 4ac} }{2a}  \\  \\ x_1 =  \frac{ - 2 -  \sqrt{36} }{2(1) }  \\  \\ x_1 =  \frac{ - 2 - 6}{2}   \\ \\ x_1 =  \frac{ - 8}{2}  \\  \\ \blue{\boxed{\red{x_1 = -4}}}

▪️ (2)

x_2 =  \frac{ - b  +   \sqrt{ {b}^{2} - 4ac } }{2a}  \\  \\ x_2 =  \frac{ - 2 +  \sqrt{36} }{2(1)}  \\  \\ x_2 =  \frac{ - 2 + 6}{2}  \\  \\ x_2 =  \frac{4}{2}  \\  \\ \red{\boxed{\blue{x_2 = 2}}}

>> Therefore, your answers are x = -4 or x = 2.

Learn more about <u>quadratic equations</u>:

brainly.com/question/27638369

6 0
2 years ago
Read 2 more answers
Walter's family plays a quick game together every night after dinner. Walter draws names out of a hat to determine which kind of
Harlamova29_29 [7]

Answer:1st 2/3 2nd 1/3 3rd 1/9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which represents a quadratic function?
irinina [24]

Answer:

Option 2 is the correct answer

Step-by-step explanation:

A quadratic function is a function in which the highest power to which the variable is raised is 2

1) f(x) = −8x3 − 16x2 − 4x

The given function is a cubic function because the highest power

to which the variable,x is raised is 3

2) f(x) = 3x²/4 + 2x - 5

The given function is a quadratic function because the highest power

to which the variable,x is raised is 2

3) f(x) = 4/x² - 2/x + 1

It can be rewritten as

f(x) = 4x^-2 - 2x^-1 + 1

The given function is not a quadratic function because the highest power to which the variable,x is raised is - 2

4) f(x) = 0x2 − 9x + 7

It can be rewritten as

f(x) = - 9x + 7

The given function is not a quadratic function because the highest power to which the variable,x is raised is 1

3 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE ANSWER THIS ASAP!
    9·2 answers
  • The gas tank of a riding mower holds 5 liters of gas.how many 5 liter gas tanks can you fill from a full 20 liter gas can
    10·2 answers
  • Is 4/6 is closer to a whole than 1/2
    10·2 answers
  • Solve these equations. |x+8|=x+8
    13·1 answer
  • Which function has a range of y&lt;3?<br> y=3(2)<br> y=2(3)<br> O y=-(2)* +3<br> O y= (2)* - 3
    12·1 answer
  • What is the value of x in the a.p<br> x+1,2x-1 and x+5
    10·1 answer
  • Mr. Jackson and Ms. Collins 3rd grade classes are going on a field trip to the science museum. There are 20 children in one clas
    8·1 answer
  • What is the square root of 24 ​
    11·2 answers
  • Data with 950 observations are drawn from a bell-shaped distribution with a mean of 78 and a standard deviation of 19. Approxima
    12·1 answer
  • M^2= 100, n^2 = 400, k^2=1600. What is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!