3 years ago

Place each number on the number line and round to the nearest 1,000

1 answer:

4 0

Round each number to the nearest 1000. ... "use place value understanding to round whole numbers to the nearest 10 or 100" ... So 80 is closer to 100 than 0 on the number line and it rounds up to 100.

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Evaluate the line integral, where C is the given curve. (x + 4y) dx + x2 dy, C C consists of line segments from (0, 0) to (4, 1)

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

Find the value of each expression.

zheka24 [161]

Answer:

I don't know if you still need an answer but- here ya go :)

a. -22 + 5 = -17

b. -22 - (-5) = -22 + 5 = -17

c. (-22)(-5) = 110

d. (-22) / 5 = -4.4

3 0

2 years ago

I need help please help me

oksian1 [2.3K]

Answer:

d=2

Step-by-step explanation:

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3 years ago

Colt1911 [192]

Answer:

1.5 seconds

Step-by-step explanation:

i took a test with the same question

6 0

3 years ago

Read 2 more answers

8 and 1/5 + 4 and 2/5=?

Leviafan [203]

12 and 3/5 hope this helped

4 0

4 years ago