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3 years ago

The diagram shows a sector of a circle of radius 6 units, formed from an angle of size 310,

Mathematics

1 answer:

BARSIC [14]3 years ago

8 0

Answer:

32.47619

Step-by-step explanation:

length of the arc =310/360 ×2(22/7)×6

=32.47619 units

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I’ve been stuck on this question since beginning of my freshman year! Someone please explain how to do this please??!

dexar [7]

Hi!

There might be different variations into how anyone would approach this problem but this is by far an easy way for me.

In order to solve fractional relationships with a variable, a perfect way to solve them would be to cross multiply and make them equal to each other.

You see the part '3y+12', and when you criss cross over to the other side of the equation, you get three. Multiply that together.

When you see the part '6', when you glide diagonally, you find '4y'. Multiply this together as well. Make them equal to each other.

(<em>This is how you do cross multiplication.)</em>

You should get something like this:

3(3y+12)=6(4y) Distribute the three on the left side and multiply. Do the same on the right.

9y+36=24y Now, you can combine like terms by subtracting 9y to the other side.

36=15y Isolate y and divide it by 15.

y=2.4

I was unclear of the answer, so I plugged in 2.4 into the original equation where the y variable was, and got the right answer, so 2.4 should be the correct one no matter how you got it.

I hope this helped!

8 0

2 years ago

The sum of a number and it's reciprocal is 2 1/30 find the number

Marina86 [1]

Hopefully you are able to clearly see the steps I have taken toward solving this problem in the attachment. In case you have trouble understanding what a reciprocal is, the reciprocal of a number is simply the number flipped. So, if you are given 1/2 and asked what the reciprocal is, it would be 2/1, or just 2. That being said, if you are given a whole number, simply remember that a whole number is ALWAYS equal to itself over one. So, in this case, the "sum of a number and its reciprocal" would be n + 1/n

8 0

3 years ago

There’s only one question (picture)

oee [108]

Area of circle is 314 inches^2

Circumference of circle is 62.8 inches

Step-by-step explanation:

We need to find area and circumference of the circle whose diameter is 20 inches.

Area of circle

The formula used to find area of circle is:

$Area=\pi r^2$

value of π = 3.14

we know radius = diameter/2

So, radius = 20/2 = 2

Putting value of π and radius we get Area:

$Area=\pi r^2\\Area= 3.14*(10)^2\\Area=3.14*100\\Area=314\,\,inches^2$

So, Area of circle is 314 inches^2

Circumference of Circle

The formula used to find circumference of circle is:

$Circumference=\pi d$

value of π = 3.14

diameter= 20

Putting value of π and diameter we get Circumference:

$Circumference=\pi d\\Circumference=3.14*20\\Circumference=62.8\,\,inches$

So, circumference of circle is 62.8 inches

Keywords: Area and Circumference of Circle

Learn more about Area and Circumference of Circle at:

#learnwithBrainly

7 0

3 years ago

Students in a discussion of gun control in a sociology class at Foothill Community College argue that Republicans are more likel

ss7ja [257]

Answer:

C. Fail to Reject H0.

Step-by-step explanation:

If the P-value is 0.06, that means that the result enters in the acceptance region. It is a value that is expected to happen if both proportions are equal (null hypothesis) at this significance level.

The conclusion when the P-value is bigger than the significance level is that the effect is not significant and it failed to reject the null hypothesis.

6 0

3 years ago

Write an equation for the following: The difference of six and a number is equal to 36.

mylen [45]

Answer:

6-x=36

x=-30.........

6 0

4 years ago