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3 years ago

On the first circle, what segment is a diameter? How long is it?

Mathematics

1 answer:

stiv31 [10]3 years ago

6 0

Answer:

The segment that is the diameter is EB

It is 8 cm long

Step-by-step explanation:

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Is not a polygon because ???

Julli [10]

Answer:

The shape includes a curve; all polygons are supposed to have straight sides, which this shape does not.

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2 years ago

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What is the difference between the fractions? Use the number line to help find the answer.

NNADVOKAT [17]

Answer:

The difference is $\frac{3}{10}$

Step-by-step explanation:

We must find the common denominator of the fractions.

The common denominator of $\frac{1}{2}$ and $\frac{1}{5}$ is $2*5=10$ ; therefore we have

$\frac{1}{2}=\frac{5}{10}$

$\frac{1}{5} =\frac{2}{10}$

now it is easy to subtract $\frac{5}{10} -\frac{2}{10}$ using the number line: we have to move $\frac{3}{10}$ units to the left in order to get to $\frac{2}{10}$ .

Thus our answer is

$\boxed{\frac{1}{2} -\frac{1}{5}=\frac{3}{10} }$

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3 years ago

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Will give Brainliest! if right!

attashe74 [19]

W = 6
b = 4
You have a 3/5 chance every time to pull a white marble.
35 x 0.6 (6/10) = 21.
Your answer is D.)

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3 years ago

Estimate the integral ∫6,0 x^2dx by the midpoint estimate, n = 6

Anettt [7]

Splitting up the interval [0, 6] into 6 subintervals means we have

$[0,1]\cup[1,2]\cup[2,3]\cup\cdots\cup[5,6]$

and the respective midpoints are $\dfrac12,\dfrac32,\dfrac52,\ldots,\dfrac{11}2$ . We can write these sequentially as ${x_i}^*=\dfrac{2i+1}2$ where $0\le i\le5$ .

So the integral is approximately

$\displaystyle\int_0^6x^2\,\mathrm dx\approx\sum_{i=0}^5({x_i}^*)^2\Delta x_i=\frac{6-0}6\sum_{i=0}^5({x_i}^*)^2=\sum_{i=0}^5\left(\frac{2i+1}2\right)^2$

Recall that

$\displaystyle\sum_{i=1}^ni^2=\frac{n(n+1)(2n+1)}6$
$\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2$
$\displaystyle\sum_{i=1}^n1=n$

so our sum becomes

$\displaystyle\sum_{i=0}^5\left(\frac{2i+1}2\right)^2=\sum_{i=0}^5\left(i^2+i+\frac14\right)$
$=\displaystyle\frac{5(6)(11)}6+\frac{5(6)}2+\frac54=\frac{143}2$

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3 years ago

Write a negative integer and a positive integer whose sum is -3.

Pani-rosa [81]

(-6) + 3 = -3 ;
The negative integer is -6; the positive integer is 3.

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3 years ago

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