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Vlad [161]
3 years ago
6

Which mathematical property is demonstrated 40x(25x74)=(40x25)x74

Mathematics
2 answers:
Jobisdone [24]3 years ago
8 0

Answer:

74,000

Step-by-step explanation:

KATRIN_1 [288]3 years ago
5 0

Answer:

Associative property of addition

Step-by-step explanation:

(a+b)+c=a+(b+c)

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Evaluate the line integral, where c is the given curve. (x + 9y) dx + x2 dy, c c consists of line segments from (0, 0) to (9, 1)
viktelen [127]
\displaystyle\int_C(x+9y)\,\mathrm dx+x^2\,\mathrm dy=\int_C\langle x+9y,x^2\rangle\cdot\underbrace{\langle\mathrm dx,\mathrm dy\rangle}_{\mathrm d\mathbf r}

The first line segment can be parameterized by \mathbf r_1(t)=\langle0,0\rangle(1-t)+\langle9,1\rangle t=\langle9t,t\rangle with 0\le t\le1. Denote this first segment by C_1. Then

\displaystyle\int_{C_1}\langle x+9y,x^2\rangle\cdot\mathbf dr_1=\int_{t=0}^{t=1}\langle9t+9t,81t^2\rangle\cdot\langle9,1\rangle\,\mathrm dt
=\displaystyle\int_0^1(162t+81t^2)\,\mathrm dt
=108

The second line segment (C_2) can be described by \mathbf r_2(t)=\langle9,1\rangle(1-t)+\langle10,0\rangle t=\langle9+t,1-t\rangle, again with 0\le t\le1. Then

\displaystyle\int_{C_2}\langle x+9y,x^2\rangle\cdot\mathrm d\mathbf r_2=\int_{t=0}^{t=1}\langle9+t+9-9t,(9+t)^2\rangle\cdot\langle1,-1\rangle\,\mathrm dt
=\displaystyle\int_0^1(18-8t-(9+t)^2)\,\mathrm dt
=-\dfrac{229}3

Finally,

\displaystyle\int_C(x+9y)\,\mathrm dx+x^2\,\mathrm dy=108-\dfrac{229}3=\dfrac{95}3
5 0
3 years ago
Please help ASAP!!!!!
ra1l [238]
These tables have infinitely many values, but the simplest ones would be:
a) x|y
    3|5
    6|10
    9|15

b) x|y
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    4|2
    6|3

Your graph for c would look like the attached picture

7 0
3 years ago
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Figure A is a scale image of Figure B.<br> whas the value of x?
spayn [35]
X = 30 because the ratio of 27/45 = .6 so 18/.6 is 30
6 0
2 years ago
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Find the area of that with explanations thanks
TEA [102]

Answer:

900m or 300m

Step-by-step explanation:

45 x 20 = 900

30 x 10 = 300

3 0
3 years ago
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Ben is repacking a 45-pound bag of rice into 8 smaller bags. How much rice is going to be in each smaller bag/11008924/c50ec7f7?
Murrr4er [49]
8 bags = 45 pound.
1 bag = 45 ÷ 8
1 bag = 5.625 pound

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Answer: 1 bag = 5.625 pound of rice
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3 0
3 years ago
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