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Nikolay [14]
4 years ago
9

I NEED THE RIGHT ANSWER PLEASE HELP! WILL GIVE BRAINLIEST

Mathematics
1 answer:
jekas [21]4 years ago
7 0

Answer:

B) 20 degrees

Step-by-step explanation:

Arc length = fraction of the circle * circumference

Arc length = fraction of the circle * 2 * pi *r

pi  = fraction of the circle * 2 * pi *9

pi  = fraction of the circle *18 pi

Divide each side by 18pi

pi

-------- = fraction of a circle

18 pi

1/18 = fraction of a circle

A circle is 360 degrees

1/18 = x/360

Multiply by 360 on each side

360/18 = x

20=x

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Do 18/24 and 10/15 have the same value? Explain your answer in complete sentences.
LenaWriter [7]

Answer:

No

Step-by-step explanation:

<em>We can either cross multiply or turn into decimal form to see if they have the same value.</em>

<em>I will be showing both.</em>

<em />

<u><em>Cross Multiply: </em></u><em>                                                   </em><u><em>Decimal Form:</em></u>

<u><em></em></u>\frac{18}{24} \;[\;\;] \frac{10}{15}                                                \mathrm{To\;turn\;fraction\;into\;decimal\;just}                                

18\times15=270                                               \mathrm{Divide\;numerator \;by \;denominator\;}

24\times10=240                                                \mathrm{18\div24=0.75}

\frac{18}{24} \;[ > ] \frac{10}{15}                                                           \mathrm{10\div15=0.66666666666}

\mathrm{As\;a\;result\;we\;can}                                             0.75 > 0.66666666666

\mathrm{conclude\;that\;\frac{18}{24} \;is\;greater\;than\;\frac{10}{15}}                     \frac{18}{24} \;[ > ] \frac{10}{15}

We can conclude that 18/24 and 10/15 are not the same.

<u><em>~Kavinsky</em></u>

7 0
3 years ago
Read 2 more answers
Two square rooms have a total floor area of 89m2. One room is 3m longer each way than the other. Find the dimensions of the two
Rudiy27

Answer:

A

Step-by-step explanation:

Let the smaller room have an area of x^2

Let the larger room have an area of (x + 3)^2

(x+3) ^2 + x^2 = 89               Be careful not to make it 89^2.

x^2 + 6x + 9 + x^2 = 89        Expand the binomial squared

2x^2 + 6x + 9 - 89 = 0          Subtract 89 from both sides

2x^2 + 6x + 9 - 89 = 0          Combine

2x^2 + 6x - 90=0                  Divide by 2

x^2 + 3x - 45 = 0         This factors.

(x + 9)(x- 5) = 0

X + 9 gives nothing useful

x - 5 = 0

x = 5

x + 3 = 5+3 = 8

So the answer is A

3 0
3 years ago
????????????????????
Veronika [31]
It seems like u are correct, smart man
3 0
3 years ago
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How many people do you need to switch a lightbulb?
kondaur [170]

Answer:

Just one.

Step-by-step explanation:

7 0
3 years ago
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How to multiply fractions mixed numbers
nikitadnepr [17]

Answer:

To multiply Mixed Fractions:

convert to Improper Fractions.

Multiply the Fractions.

convert the result back to Mixed Fractions.

Step-by-step explanation:

5 0
3 years ago
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