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insens350 [35]
2 years ago
14

What fraction below is NOT equivalent to 1/5? *

Mathematics
1 answer:
bogdanovich [222]2 years ago
4 0
1.3/8 I THINK
2.12
3.True
4.67.118
5. 180
6. 22/ 5
7. 7/4
8.1/8

I hope It'll help you!
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What is -5 5/8 + 3 1/2
aksik [14]

Answer:

exact form: -17/8

decimal form: -2.125

mixed number form: -2 1/8

Step-by-step explanation:

cmon this is freaking addition

4 0
2 years ago
Use the given transformation x=4u, y=3v to evaluate the integral. ∬r4x2 da, where r is the region bounded by the ellipse x216 y2
exis [7]

The Jacobian for this transformation is

J = \begin{bmatrix} x_u & x_v \\ y_u & y_v \end{bmatrix} = \begin{bmatrix} 4 & 0 \\ 0 & 3 \end{bmatrix}

with determinant |J| = 12, hence the area element becomes

dA = dx\,dy = 12 \, du\,dv

Then the integral becomes

\displaystyle \iint_{R'} 4x^2 \, dA = 768 \iint_R u^2 \, du \, dv

where R' is the unit circle,

\dfrac{x^2}{16} + \dfrac{y^2}9 = \dfrac{(4u^2)}{16} + \dfrac{(3v)^2}9 = u^2 + v^2 = 1

so that

\displaystyle 768 \iint_R u^2 \, du \, dv = 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2 \, du \, dv

Now you could evaluate the integral as-is, but it's really much easier to do if we convert to polar coordinates.

\begin{cases} u = r\cos(\theta) \\ v = r\sin(\theta) \\ u^2+v^2 = r^2\\ du\,dv = r\,dr\,d\theta\end{cases}

Then

\displaystyle 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2\,du\,dv = 768 \int_0^{2\pi} \int_0^1 (r\cos(\theta))^2 r\,dr\,d\theta \\\\ ~~~~~~~~~~~~ = 768 \left(\int_0^{2\pi} \cos^2(\theta)\,d\theta\right) \left(\int_0^1 r^3\,dr\right) = \boxed{192\pi}

3 0
2 years ago
Joseph write the number pattern below 100; 101, 96; 97; 92; 93, 88; 89; what is the next pattern?
sergij07 [2.7K]

Answer:

multiples of 8

Step-by-step explanation:

79 80. 82. 81. 83 84 85 86. 88. 87. 89 90. 92. 91. 93 94 95 96. 98. 97. 99 100 ... 101. 3. (a) Write down the first 8 multiples of 8. (b) Write down the first 8 multiples of 6. ... (d) What are the next two numbers that are multiples of both 6 and 8? 4.

5 0
3 years ago
PLEASE HELP ME IN MATH ITS URGENT
Alika [10]

Answer:

D

Step-by-step explanation:

4 0
2 years ago
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EASYYYYY PLEASE HELP!! SOS
V125BC [204]

Answer:

2n+6=20

-6 -6

2n=14

÷2 ÷2

n=7

7 0
3 years ago
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