3 years ago

Which of the following options have the same value as 70% of 80?

2 answers:

7 0

56 is the answer so it's A, C and E.

3 0

I believe the answers are: A C E

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zubka84 [21]

Parameterize the line segments (call them $C_1$ and $C_2$ , respectively, by

$\vec r_1(t)=(1-t)(0,0)+t(4,1)=(4t,t)$

$\vec r_2(t)=(1-t)(4,1)+t(5,0)=(4+t,1-t)$

both with $0\le t\le1$ . Then

$\displaystyle\int_C(x+4y)\,\mathrm dx+x^2\,\mathrm dy$

$=\displaystyle\int_0^1\bigg((4t+4t)(4)+(4t)^2(1)\bigg)\,\mathrm dt+\int_0^1\bigg((4+t+4(1-t))(1)+(4+t)^2(-1)\bigg)\,\mathrm dt$

$=\displaystyle\int_0^115t^2+21t-8\,\mathrm dt=\boxed{\frac{15}2}$

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3 years ago

Vaselesa [24]

She has 45 pennies and 9 quarters

5:1

P:Q

0.01:0.15

0.05:0.15 0.1:0.3 0.15:0.45 0.2:0.6 0.25:0.75 0.3:0.9 0.35:1.05 0.4:1.2
0.45:1.35

8 0

3 years ago

MariettaO [177]

nine divided by five to the sixth power is 0.000576

8 0

3 years ago

Mazyrski [523]

Answer:

Me no espanol

Step-by-step explanation:

LOL

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3 years ago

Archy [21]

Answer: D

Step-by-step explanation:

5 0

2 years ago