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
6

Please help! 10 points and brainlyist!!

Mathematics
1 answer:
yarga [219]3 years ago
5 0

Answer:

1.80 in^3

1.0 fluid ounces^3

Step-by-step explanation:

volume of a cone = 1/3 πr²h

π = 3.14

r = 2.2 / 2 = 1.1

h = the value of h can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

1.8² = 1.1² + b²

3.24 = 1.21 + b²

3.24 - 1.21 = b²

2.03

b = √2.03 = 1.42

Volume = 1/3 x 3.14 x 1.21 x 1.42 = 1.80 in^3

1.80 x 0.554 = 1.0 fluid ounces^3

You might be interested in
1) The center of a circle is at (-10,6) and it has a radius of 4. What is the equation of the circle?
krok68 [10]
1.   (x - h)² + (y - k)² = r²
 (x - (-10)) + (y - 6)² = 4²
  (x + 10)² + (y - 6)² = 16
The equation of the circle is (x + 10)² + (y - 6)² = 16.

2. The answer is A.

3. The equation of the parabola is y = ⁻⁵/₃₆x² - 1²/₃x - 2.

4. I don't know the answer to the problem.
8 0
3 years ago
Solve the initial value problem yy′+x=x2+y2‾‾‾‾‾‾‾√ with y(1)=8‾√. To solve this, we should use the substitution u= x^2+y^2 help
leva [86]

Looks like the equation is

yy'+x=\sqrt{x^2+y^2}

Substitute u(x)=x^2+y(x)^2, so that u'=2x+2yy'. Then the equation is the same as

\dfrac{u'-2x}2+x=\sqrt u\implies u'=2\sqrt u\implies\dfrac{\mathrm du}{2\sqrt u}=\mathrm dx

Integrate both sides to get

\sqrt u=C\implies\sqrt{x^2+y^2}=C

Given that y(1)=\sqrt8, we have

\sqrt{1^2+(\sqrt8)^2}=C\implies C=3

so the solution is

\sqrt{x^2+y^2}=3

7 0
3 years ago
Please solve this question. It's about inverse matrix. ASAP!!​
sweet-ann [11.9K]

Answer:

Step-by-step explanation:

A=\begin{bmatrix}2&3\\4&7\end{bmatrix}\\\\A^{-1} =\begin{bmatrix} \dfrac{7}{2} & \dfrac{-3} {2}\\-2&1 \end{bmatrix}\\\\A*A^{-1}=1\pi_2=T\\\\A^2+3T=\begin{bmatrix} 14&27\\36&61 \end{bmatrix}+\begin{bmatrix} 1&0\\0&1 \end{bmatrix}=\begin{bmatrix} 17&27\\36&64 \end{bmatrix}

4 0
2 years ago
Find the area of an isosceles triangle with perimeter of 40 feet and a base of 12 feet. Round to the nearest whole number.
Aleksandr [31]

Answer: 76 ft2

Step-by-step explanation:

Perimeter = 2 side length +base length

40 = 2s +12

Solving for s:

40-12 =2s

28 =2s

28/2=s

14ft =side

Since the line which bisects and isosceles triangles is at a right angle to the base we can use the Pythagorean Theorem to find the height (see attachment)  

c^2 = a^2 + b^2  

Where c is the hypotenuse of the triangle (in this case 14) and a and b are the other sides. (Base divided by 2 is one side, the other side is the height)

Replacing with the values given:  

14^2= 6^2 + x^2

196 = 36 + x^2

196-36 = x^2

160 = x^2

√160 = x

x = 12.64 (height)

Area of an isosceles triangle = 1/2 x base x height  

A = 1/2 x 12 x 12.64 = 76 ft2

5 0
3 years ago
Ramon drives his car 150 miles in 3 hours. Find the unit rate.
erma4kov [3.2K]

Answer:

The answer is A

Step-by-step explanation:

A) Ramon drive 50 miles per hour

3 0
3 years ago
Other questions:
  • sally draws a triangle with one side.6 inches long and another aise.8 inches long. which is not. possible length for the third s
    10·1 answer
  • Please help asap I need to turn this in on time
    15·2 answers
  • How do I multiply 42 x 7.2
    12·1 answer
  • Solve for x.<br> -4log2(5x)=-12
    8·2 answers
  • A banner is made of a square and a semicircle. The square has side lengths of 26 inches. One side of the square is also the diam
    13·1 answer
  • HELPPP THIS IS MY LAST QUESTION
    8·1 answer
  • Do this for a lot of points and brainly!!! Asap
    9·2 answers
  • Rewrite using a single exponent!<br> 8² times 8³
    8·1 answer
  • An employee receives a 4% raise once
    8·1 answer
  • Sue has 18 sweets<br> tony also has 18 sweet
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!