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
Stella [2.4K]
3 years ago
15

Please show work, thanks ​

Mathematics
1 answer:
Brut [27]3 years ago
6 0

Answer:

4) 1400 in^3

5) 304\Pi or 954.56yd^3

6) 315 ft^2

Step-by-step explanation:

4)

V = \frac{lwh}{3} = \frac{20*20*10.5}{3} = \frac{4200}{3} = 1400

5)

A = \Pi(\frac{D}{2})^2 = \Pi(\frac{8}{2})^2 = \Pi*4^2 = 16\Pi

V = A * h = 16\Pi * 19 = 304\Pi = 304 * 3.14 = 954.56

6)

h^2 = 8^2 + 8^2 => h^2 = 64 + 64 = 128 => h =\sqrt{128}

A_1 = 2(\frac{8*\sqrt{128}}{2}) = 8*\sqrt{128} = 32 = 90.5

A_2 = 2(14 * 8) = 2*112 = 224

A = A_1 + A_2 = 91 + 224 = 315

You might be interested in
Does anyone know this?
weeeeeb [17]

Answer:

BC = 10.24

Step-by-step explanation:

You can use the Pythagoras theorem for this question

a^{2} + b^{2} = c^{2}

a = 8cm

b = ???

c = 13cm

We will solve for B (length BC)

a^{2} + b^{2} = c^{2}

8^{2} + b^{2} = 13^{2}

Rearrange for b

b^{2} = 13^{2} - 8^{2}

b^{2} = 105

b = \sqrt{105}

b = 10.24

7 0
3 years ago
Factor the polynomial below.
Zolol [24]

Answer:

Answer is Option D. 6x^{2} y^{2}z(xy+2z^{2})

Step-by-step explanation:

In the expression given we will do the factors of two polynomials first and then we will take the common factors out of the bracket.

First we do the factors of 6x^{3} y^{3}z=6×x^{2}×x×y^{2}×y×z

Now we do the factors of 12x^{2} y^{2} z^{3}=2×6×x^{2}y^{2}×z×z^{2}

Now take the common factors of both the polynomials out of the bracket

⇒3×2x^{2} y^{2}z(xy+2z^{2})

4 0
3 years ago
Find the measures of the angles labeled in the figure.
vitfil [10]
  • m<EFD=90°.

#2

\\ \rm\longmapsto H+55=180

\\ \rm\longmapsto H=180-55=125

#3

\\ \rm\longmapsto b+35=90

\\ \rm\longmapsto b=90-35=55

#4

\\ \rm\longmapsto a+55+55=180

\\ \rm\longmapsto a=180-110

\\ \rm\longmapsto a=70

#5

Now using angle sum property .

\\ \rm\longmapsto d+125+35=180

\\ \rm\longmapsto d=180-160

\\ \rm\longmapsto d=20°

6 0
3 years ago
A line has a slope of 9 what is the slope of a line it is parallel to this line? *
bija089 [108]

Answer: 9

Step-by-step explanation: Parallel lines have the same slope.

So a line parallel to this would also have 9 as its slope.

4 0
3 years ago
Can I get an answer please ​
k0ka [10]

Answer:

the second one I'm pretty sure

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help with these math questions please
    9·1 answer
  • Write an equation of the line in slope intercept form​
    6·1 answer
  • Select all that apply
    14·2 answers
  • Mr. O'Connor had $90 to spend at a football game. He spent 31/45 on his ticket. Then, he spent 3/7 of his remaining money at the
    13·1 answer
  • Nvm djiojfoidsjfosdjfoisdjfoisdjfo
    11·1 answer
  • A taste test asks people from Texas and California which pasta they prefer, brand A or brand B. This table shows the results. A
    13·1 answer
  • Layla read 12 books in 5 months what was her rate of reading in books per month ​
    9·2 answers
  • State the x-intercept of the function 6x−2y=18
    14·1 answer
  • What is the Answer I need the real answer I’m stuck on it
    10·1 answer
  • PLS WHAT IS THE REAL ANSWWR ASAP
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!