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pickupchik [31]
3 years ago
9

...So...help please?

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

<h2><em>3</em><em>4</em><em>.</em><em>5</em><em>4</em><em> </em><em>cm</em></h2>

<em>Option</em><em> </em><em>C </em><em>is</em><em> the</em><em> </em><em>right</em><em> </em><em>option</em><em>.</em>

<em>Sol</em><em>ution</em><em>,</em>

<em> </em><em>Diame</em><em>ter</em><em>=</em><em>1</em><em>1</em><em> </em><em>cm</em>

<em>Radius</em><em>=</em><em>1</em><em>1</em><em>/</em><em>2</em><em>=</em><em>5</em><em>.</em><em>5</em><em> </em><em>cm</em>

<em>Circ</em><em>umference</em><em>=</em><em>?</em>

<em>Now</em><em>,</em>

<em>circumference = 2\pi \: r \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 2 \times 3.14 \times 5.5 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = 34.54 \: cm</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

Naya [18.7K]3 years ago
7 0

Answer:

C =34.54 cm

Step-by-step explanation:

The circumference is the diameter times pi

C = pi *d

C = 3.14 * 11

C =34.54 cm

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Tell whether the angles are adjacent or vertical. Then find the value of x.
Alexandra [31]

Answer:

Vertical/ x = 25.

Step-by-step explanation:

Vertical angles are self-explanatory; vertical angles are angles that are vertical from each other.

Vertical angles are also congruent (equal), meaning that both angles equal 75°.

4x - 25 = 75.

To solve this expression, we must first add 25 to 75. This is because there is a subtraction sign in front of 25, so we must do the opposite.

25 + 75 = 100

Lastly, divide 100 from 4.

4x = 100

100 / 4 = 25

x = 25

3 0
3 years ago
How many different 2-person conversations would happen at a party of 30 people
tigry1 [53]
15 because simple division 30 divided by 2 is 15 only 15 can happen
7 0
2 years ago
9
Mnenie [13.5K]

Answer: n = 75; p = 30

Explanation: (a) 5p + 4n = 450 where p is for pen and n is for notebook.

(b) 10p + 3n = 525

We can use the elimination method to solve these two equations.

1. Multiply the first equation by 2 so that 10p will cancel out:

2(5p + 4n = 450)

- 10p + 3p = 525

10p + 8n = 900

- 10 p + 3n = 525

5n = 375

2. Divide by 5 to get n alone: n = 75

3. Plug 75 into the first equation: 5p + 4(75) = 450

5p + 300 = 450

4. Subtract 300 from 450: 5p = 150

5. Divide by 5 to get p alone: p = 30

We can test if this is correct by plugging our answers into the second equation:

10(30) + 3(75) = 525

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This is a true statement, which means that our answers are correct.

6 0
3 years ago
Demonstrate two different ways to solve the equation 5^(2x+1) = 25.
Tanzania [10]

Answer:

Step-by-step explanation:

Method 1: Taking the log of both sides...

So take the log of both sides...

5^(2x + 1) = 25

log 5^(2x + 1) = log 25 <-- use property: log (a^x) = x log a...

(2x + 1)log 5 = log 25 <-- distribute log 5 inside the brackets...

(2x)log 5 + log 5 = log 25 <-- subtract log 5 both sides of the equation...

(2x)log 5 + log 5 - log 5 = log 25 - log 5

(2x)log 5 = log (25/5) <-- use property: log a - log b = log (a/b)

(2x)log 5 = log 5 <-- divide both sides by log 5

(2x)log 5 / log 5 = log 5 / log 5 <--- this equals 1..

2x = 1

x=1/2

Method 2

5^(2x+1)=5^2

2x+1=2

2x=1

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3 0
3 years ago
What is the y-intercept for the function f(x)=2•5+4<br> A)y=2<br> B)y=4<br> C)y=6<br> D)y=14
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Answer:

D) y=14

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2×5+4

Two multipled by five then add 4 is 14

5 0
2 years ago
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