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PilotLPTM [1.2K]
3 years ago
8

What is the area of the semicircle?

Mathematics
2 answers:
gogolik [260]3 years ago
5 0

Answer:

1/2 *22/7* r² .............. . ..

yawa3891 [41]3 years ago
5 0

Answer:

Area = Pi(radius^2)(0.5)

Pi = 3.14159

Step-by-step explanation:

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How many solutions does the equation x^2-9x=-8 have?
Elza [17]
X^2-9x=-8
x^2-9x+8=-8+8
x^2-9x+8=0
(x-8)(x-1)=0

x-8=0
x-8+8=0+8
x=8

x-1=0
x-1+1=0+1
x=1

There are 2 solutions, which are 1 and 8 
8 0
3 years ago
I need help! this is missing
mr Goodwill [35]

Answer:

top right

Step-by-step explanation:

if you solve an equation for a triangle using this method you'll get this result

6 0
2 years ago
Read 2 more answers
Divide the following complex numbers: (4-i)/(3+4i) ??
frez [133]

The answer is \frac{8}{25} -i\frac{19}{25}

Steps: (<em>in the attachment</em>)↓↓↓↓↓

<em>Hope this helps!!</em>

3 0
3 years ago
John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $13.00. After usin
Ksju [112]

Answer:

D is the correct answer.

Step-by-step explanation:

You would add $6.00 to $13.20, making 19.20, subtracting 4 x $1.55 (6.2) leaves you with $13, the cost of the pizza. So therefore, it would be 4d + $13.00 – $6.00 = $13.20; $1.55.

3 0
3 years ago
You bike
Lyrx [107]
<h2>Answer:</h2>

<em>You will bike 30.2 miles in the seventh day according to the prediction.</em>

<h2>Explanation:</h2>

Here we have the following data, You bike

  • 5  miles the first day of your​ training,
  • 5.4 miles the second​ day,
  • 6.2 miles the third​ day, and
  • 7.8 miles the fourth day.

So we can know some facts:

  • From the first day to the second day the number of miles increases:

5.4-5=0.4mi

  • From the second day to the third day the number of miles increases:

6.2-5.4=0.8mi

  • From the third day to the fourth day the number of miles increases:

7.8-6.2=1.6mi

By taking a look at the pattern, we can see that each day you increases the number of miles by a factor of 2 compared to the previous day. So:

  • From the fourth day to the fifth day the number of miles increases:

x_{5}-7.8=3.2mi \\ \\ x_{5}=7.8+3.2=11mi, \ \text{Day 5}

  • From the fifth day to the sixth day the number of miles increases:

x_{6}-11=6.4mi \\ \\ x_{6}=6.4+11=17.4mi, \ \text{Day 6}

Finally:

  • From the sixth day to the seventh day the number of miles increases:

x_{7}-17.4=12.8mi \\ \\ x_{7}=12.8+17.4=30.2mi, \ \text{Day 7}

6 0
3 years ago
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