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vivado [14]
3 years ago
9

01:55:22

Mathematics
1 answer:
denis-greek [22]3 years ago
6 0

The area of given circle is:

78.6 m^2

Further explanation:

The area of a circle is calculated using its radius and pi.

the value of pi can be 22/7 or 3.14. We will use 22/7

Given

Diameter = d = 10m\\r = \frac{d}{2} = \frac{10}{2} = 5m\\Now,\\Area = \pi r^2\\= \frac{22}{7}*(5)^2\\= \frac{22}{7}*25\\=\frac{550}{7}\\=78.57\ m^2

The area of given circle is:

78.57 m^2

Rounding off to the nearest 10th

78.6 m^2

Keywords: Area of circle, radius of circle

Learn more about area of circle at:

  • brainly.com/question/9607945
  • brainly.com/question/9729310

#LearnwithBrainly

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Vika [28.1K]

Answer:

OPTION A

Step-by-step explanation:

AS IF SHE DOUBLES 1 DIMENSION THE VOLUME BECOMES TWICE.

V=L*B*H

IF L IS DOUBLED ..

THEREFORE,NEW VOLUME=

V2=2L*B*H

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3 0
3 years ago
Read 2 more answers
Please help! A-level maths.
astra-53 [7]

x+y=k\implies y=k-x

Substitute this into the parabolic equation,

k-x=6-(x-3)^2\implies x^2-7x+(k+3)=0

We're told the line x+y=k intersects C twice, which means the quadratic above has two distinct real solutions. Its discriminant must then be positive, so we know

(-7)^2-4(k+3)=49-4(k+3)>0\implies k

We can tell from the quadratic equation that C has its vertex at the point (3, 6). Also, note that

-1\le\sin t\le1\implies3\le3+2\sin t\le5\implies3\le x\le5

and

-1\le\cos2t\le1\implies2\le4+2\cos2t\le6\implies2\le y\le6

so the furthest to the right that C extends is the point (5, 2). The line x+y=k passes through this point for 2+5=k\implies k=7. For any value of k, the line x+y=k passes through C either only once, or not at all.

So 7\le k; in set notation,

\{k\mid 7\le k

4 0
3 years ago
HELP Given the set of all odd integers from 1 to 81, what is the probability
dusya [7]

Using it's concept, the probability of choosing a number that is a multiple of 9 is of 0.111.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

From 1 to 81, there are 81 numbers, of which 81/9 = 9 are multiples of 9, hence, considering that 81 is the number of total outcomes and that 9 is the number of desired outcomes, the probability is given the following division:

p = 9/81 = 1/9 = 0.111.

More can be learned about probabilities at brainly.com/question/14398287

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1 year ago
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vladimir1956 [14]

9514 1404 393

Answer:

  ∠CAB = 28°

  ∠DAC = 64°

Step-by-step explanation:

What you do in each case is make use of the relationships you know about angles in a triangle and around parallel lines. You can also use the relationships you know about diagonals in a rectangle, and the triangles they create.

<u>Left</u>

Take advantage of the fact that ∆AEB is isosceles, so the angles at A and B in that triangle are the same. If we call that angle measure x, then we have the sum of angles in that triangle is ...

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The measure of angle CAB is 28°.

__

<u>Right</u>

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The measure of angle DAC is 64°.

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Answer:

Step-by-step explanation:

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ANS:option c

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