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fenix001 [56]
2 years ago
8

PLEASE HELP REALLY APRICATE IT

Mathematics
2 answers:
zaharov [31]2 years ago
7 0
It should be 92 sorry if its wrong
yarga [219]2 years ago
3 0
Volume of shaded portion = volume of sphere - volume of cone

= 4/3 * 3.14 * 3^3 - 1/3 * 3.14 * 2^2 * 5

= 113.04 - 20.93

= 92.11 ≈ 92

Hope it helps!

 
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The graph of the equation 2x2 + xy + y2 = 4 is the tilted ellipse pictured below; i.e. the points (x,y) in the plane that satisf
mihalych1998 [28]

Answer:

The slope of tangent at point (1,-2) is \frac{2}{3}.

Step-by-step explanation:

The given equation of ellipse is

2x^2+xy+y^2=4

Differentiate both sides with respect to x.

\frac{d}{dx}(2x^2+xy+y^2)=\frac{d}{dx}(4)

\frac{d}{dx}(2x^2)\frac{d}{dx}(xy)+\frac{d}{dx}(y^2)=\frac{d}{dx}(4)

4x+x\frac{dy}{dx}+y+2y\frac{dy}{dx}=0

(4x+y)+(x+2y)\frac{dy}{dx}=0

\frac{dy}{dx}=-\frac{4x+y}{x+2y}

Calculate the value of \frac{dy}{dx} at (1,-2).

\frac{dy}{dx}_{(1,-2)}=-\frac{4(1)+(-2)}{(1)+2(-2)}

\frac{dy}{dx}_{(1,-2)}=-\frac{2}{-3}

\frac{dy}{dx}_{(1,-2)}=\frac{2}{3}

Therefore the slope of tangent at point (1,-2) is \frac{2}{3}.

3 0
3 years ago
Read 2 more answers
Please help the answer cannot be a fraction (I have no clue)
bonufazy [111]

Answer:

1.25

Step-by-step explanation:

cause 5/4÷ 12/12 is 1/8 and 1/8 as a decimal is 1.25.

5 0
3 years ago
simplify the following expression: (x+7/4x) + (5/x-8) I also attached a photo of the problem if you get confused on how I typed
Gnoma [55]

Answer:

\frac{x^{2}  + 19x - 56}{4 {x}^{2}   - 32x}

Step-by-step explanation:

Start by making the denominators of both fraction the same. This can be done by multiplying one fraction's denominator by the other.

After simplifying and combining the two fractions together, check if the numerator can be factorised such that there is a common factor in the denominator and numerator. In this case, the numerator cannot be factorised.

Lastly, expand the denominator.

\frac{x + 7}{4x}  +  \frac{5}{x - 8}

=  \frac{(x + 7)(x - 8)}{4x(x - 8)}  +  \frac{5(4x)}{4x(x - 8)}

=  \frac{x(x) + x( - 8) + 7(x) + 7( - 8) + 20x}{4x(x - 8)}

=  \frac{ {x}^{2} - 8x + 7x - 56 + 20x }{4x(x - 8)}

=  \frac{ {x}^{2}  + 19x - 56}{4x(x - 8)}

=  \frac{ {x}^{2}  + 19x - 56}{4 {x}^{2}  -  32x}

7 0
2 years ago
How can you tell that a fraction is a unit fraction
a_sh-v [17]
You can tell that a fraction is a unit fraction when it is over a unit of one. This is also known as unit rate.
6 0
3 years ago
Read 2 more answers
What is the compliment of a 62° angle.
krok68 [10]

Answer:

28°

Step-by-step explanation:

complimentary angles = their sum is 90.

so to find the complimentary angle of 62, just subtract it from 90.

90-62 = 28

your answer is 28°

good luck with your schoolwork/homework!

---------------------------------------------------------------------

apologies in advance for incorrect answers or bad explanations.

3 0
3 years ago
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