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stellarik [79]
2 years ago
5

1897 rounded to the nearest 1000

Mathematics
2 answers:
Delvig [45]2 years ago
8 0
2000 because 8 is big so you are able to round it to become 2 in the 1000
ser-zykov [4K]2 years ago
4 0

Answer:

200

Step-by-step explanation:

2000 because 8 is big so you are able to round it to become 2 in the 1000

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Angles question please help math
Natali [406]
The answer should be 62 °
180°-118°=62°
Subtract 118° from 180° because a parallel line is 180°. So you just have to find the other side of the line.
Hope this helps.
3 0
3 years ago
3y -7y + 18x + y + 21x + 9 - 13 Simplify the expression
Leviafan [203]

Answer:

-3y+39x-4

Step-by-step explanation:

3y minus 7y plus y is -3y. 18x plus 21x is 39x. 9 minus 13 is -4

7 0
2 years ago
What is the cube root of b^27
Sophie [7]
1 byte9 Cube root of b^27 = b^27/3 = b^9.
4 0
3 years ago
To the Pythagorean Theorem
Aloiza [94]

Answer:

x = 29

Step-by-step explanation:

c^{2} = a^{2} + b^{2}

c^{2} = 20^{2} + 21^{2}

c^{2} = 400 + 441

c^{2} = 841

\sqrt{c^2} = \sqrt{841}

c = 29

4 0
2 years ago
Find the integral, using techniques from this or the previous chapter.<br> ∫x(8-x)3/2 dx
Soloha48 [4]

Answer:

\int x(8-x)^{3/2}dx= -\frac{16}{5} (8-x)^{\frac{5}{2}} +\frac{2}{7} (8-x)^{\frac{7}{2}} +C

Step-by-step explanation:

For this case we need to find the following integral:

\int x(8-x)^{3/2}dx

And for this case we can use the substitution u = 8-x from here we see that du = -dx, and if we solve for x we got x = 8-u, so then we can rewrite the integral like this:

\int x(8-x)^{3/2}dx= \int (8-u) u^{3/2} (-du)

And if we distribute the exponents we have this:

\int x(8-x)^{3/2}dx= - \int 8 u^{3/2} + \int u^{5/2} du

Now we can do the integrals one by one:

\int x(8-x)^{3/2}dx= -8 \frac{u^{5/2}}{\frac{5}{2}} + \frac{u^{7/2}}{\frac{7}{2}} +C

And reordering the terms we have"

\int x(8-x)^{3/2}dx= -\frac{16}{5} u^{\frac{5}{2}} +\frac{2}{7} u^{\frac{7}{2}} +C

And rewriting in terms of x we got:

\int x(8-x)^{3/2}dx= -\frac{16}{5} (8-x)^{\frac{5}{2}} +\frac{2}{7} (8-x)^{\frac{7}{2}} +C

And that would be our final answer.

8 0
2 years ago
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