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AURORKA [14]
2 years ago
5

The area of a circle is equal to 1 dm2. Find the radius of the circle.

Mathematics
1 answer:
lisov135 [29]2 years ago
7 0

Answer:

2000

Step-by-step explanation:

1 dm =1000

2dm =?

2dm x 1000

1dm

2000

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If f(x) = x^2 - 4x + 3, and the domain is {-2, 0, 1}, what is the range?
dangina [55]

Evaluate the function at the three values of the range and see what you get. The appropriate choice is ...

... D) {15, 3, 0}

_____

Evaluation can sometimes be simpler if you rearrange the function to a form called "Horner's form."

... f(x) = (x -4)x +3

Then the evaluation looks like (for x=-2) ...

... f(-2) = (-2-4)(-2)+3 = (-6)(-2) +3 = 12 +3 = 15

This is sufficient to identify D as the answer of choice.

5 0
3 years ago
Pls help. will give brainliest :)
fomenos

Answer:

its option B

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
PLEASE HELP ME SOLVE
kirill115 [55]

The time taken for 21000 spectators to vacate the stadium , if only 15 exits are functional is 28 minutes .

In the question ,

it is given that

the time taken to vacate the stadium = 20 minutes

number of exits = 25 exits

capacity of the stadium = 25000 spectators .

given that ,

time taken to exit the stadium varies directly with number of spectators and inversely with the number of exits .

time taken ∝ number of spectators ∝ 1/number of exits .

to remove the proportionality sign , we write the constant

time taken = k * (number of spectators)/(number of exits) .

20 = k * 25000/25

20 = k * 1000

k = 20/1000

k = 2/100

k = 1/50 = 0.02

So, to find the time taken for 21,000 spectators to vacate the stadium, if only 15 exits are functional , we use the formula

time taken = (0.02)*(21000/15)

= 0.02*1400

= 28

Therefore , The time taken for 21000 spectators to vacate the stadium , if only 15 exits are functional is 28  minutes .

Learn more about Equation here

brainly.com/question/23633125

#SPJ1

5 0
1 year ago
Shirts are on sale for 20% you buy two of them. When you pay the Cheshire says ""20% off each shirt means 40% off the total pric
MAXImum [283]

Answer:

True

Step-by-step explanation:

2 shirts where both at 20% off for each =

          2 * 20% = 40% i.e. 40% off for both shirts  

5 0
3 years ago
Julia spent 1/3 of her birthday money then she lost half of the rest now she has only $10 left how much did she get for her birt
Lilit [14]
She got $30, because 10 is 1/3 of 30. Think of it like this. What's 10·3? If it was 1/6, she would have 60 dollars, because 10<span>·6 is 60.</span> The equation here, if your teacher is asking for that, would be (x/3=10), or (10·1/3=x). X represents the variable.
3 0
3 years ago
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