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3 years ago

5:510:5answer this question

Mathematics

1 answer:

aev [14]3 years ago

6 0

Answer:

please they are no questions

Step-by-step explanation:

for that 10:5

2:1

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Which expression is equal to (2x + 5) · 8 using the commutative property?

zysi [14]

The answer is A, (5 + 2x) * 8
The commutative property means that the order of addition or multiplication does not matter

4 0

4 years ago

Calculus 3 chapter 16

o-na [289]

Evaluate $\vec F$ at $\vec r$ :

$\vec F(x,y,z) = x\,\vec\imath + y\,\vec\jmath + xy\,\vec k \\\\ \implies \vec F(\vec r(t)) = \vec F(\cos(t), \sin(t), t) = \cos(t)\,\vec\imath + \sin(t)\,\vec\jmath + \sin(t)\cos(t)\,\vec k$

Compute the line element $d\vec r$ :

$d\vec r = \dfrac{d\vec r}{dt} dt = \left(-\sin(t)\,\vec\imath+\cos(t)\,\vec\jmath+\vec k\bigg) \, dt$

Simplifying the integrand, we have

$\vec F\cdot d\vec r = \bigg(-\cos(t)\sin(t) + \sin(t)\cos(t) + \sin(t)\cos(t)\bigg) \, dt \\ ~~~~~~~~= \sin(t)\cos(t) \, dt \\\\ ~~~~~~~~= \dfrac12 \sin(2t) \, dt$

Then the line integral evaluates to

$\displaystyle \int_C \vec F\cdot d\vec r = \int_0^\pi \frac12\sin(2t)\,dt \\\\ ~~~~~~~~ = -\frac14\cos(2t) \bigg|_{t=0}^{t=\pi} \\\\ ~~~~~~~~ = -\frac14(\cos(2\pi)-\cos(0)) = \boxed{0}$

3 0

2 years ago

I need help with 3 and 4 pls

vladimir2022 [97]

Answer U cant answer 4 without answering 3 good luck

Step-by-step explanation:

7 0

3 years ago

Answer mines and I’ll do the same for u

Goryan [66]

For number 3, C is the answer.
#4. D
the coefficient of x² is negative, so the graph opens downward.
the two zeros are (3,0) and (5,0)
cannot see the question when editing. I'll post it in the comments.

5 0

4 years ago

Please help!!

LuckyWell [14K]

Answer:

Hmmmmm.....

Step-by-step explanation:

There were two and a half pizzas, but only 1/4 pies, so how many pieces of pizza would go with the amount of cake if you wanted to make the numbers proportional?

Idk

I answered only because you said please

7 0

4 years ago

5:510:5answer this question​

5:510:5answer this question