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2 years ago

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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Write an equation that represents a line that is parallel to y=3/4x and passes through the point (2,1).

Kisachek [45]

Insert the slope and point into point-slope form:-

y - 1 = 3/4(x - 2)
y = 3/4x - 6/4 + 1
y = 3/4x - 1/2

6 0

3 years ago

Which of the following points is a solution to the system of inequalities?HURRY ITS MY EXAM

vazorg [7]

Answer:

THANKS FOR THE FREE POINTS!

Step-by-step explanation:

u cant report me bc it’s against guidelines to use this for exams or timed tests

8 0

3 years ago

If Karri takes a 7 question true false test and guess on every question, what is the

dusya [7]

Answer:

The probability that she gets all 7 questions correct is 0.0078.

Step-by-step explanation:

We are given that Karri takes a 7 question true-false test and guess on every question.

The above situation can be represented through binomial distribution;

$P(X = r) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r} ; x = 0,1,2,3,........$

where, n = number of samples (trials) taken = 7 question

r = number of success = all 7 questions correct

p = probability of success which in our question is probability that

question is correct, i.e. p = 50%

Let X = Number of question that are correct

So, X ~ Binom(n = 7, p = 0.50)

Now, the probability that she gets all 7 questions correct is given by = P(X = 7)

P(X = 7) = $\binom{7}{7} \times 0.50^{7} \times (1-0.50)^{7-7}$

= $1 \times 0.50^{7} \times 0.50^{0}$

= 0.0078

6 0

3 years ago

Evalue f(x)=(-2)^2-3(-2)+5/(-2)^2+1

Nina [5.8K]

F(x)=4+6+5/4+1
F(x)=4+6+5/5
F(x)=10+1=11

Answer =11

8 0

2 years ago

4x + 3 < 3 OR 4x + 3 > 19

JulijaS [17]

$4x + 3 > 19$

Step-by-step explanation:

$4x + 3 > 19 \\ 4x + 3 - 3 > 19 - 3 \\ 4x > 16 \\ 4x \div 4 > 16 \div 4 \\ x > 4$

4 0

2 years ago