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Answer:

[tex]\dfrac{9}{19}[/tex]

Step-by-step explanation:

It is given that there are a total of 19 cards ({1,2,3,4, ...... ,19}).

Let S be the set of total cards.

S ={1,2,3,4, ...... ,19}

Total number of observations, n(S) = 19

Even number of cards is the set {2,4,6,8,10,12,14,16,18}

Total number of cards with even number on it = 9

Let E be the event of selecting a card with even number on it.

n(E) = 9

Probability of an event A can be formulated as:

[tex]P(A) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]

In this case, formula of P(E) is:

[tex]P(E) = \dfrac{n(E)}{n(S)}[/tex]

[tex]\Rightarrow \dfrac{9}{19}[/tex]

The probability that the card chosen at random is an even number is:

[tex]\dfrac{9}{19}[/tex]

The probability that the card will have an even number will be 0.4737.

     = 9/19 = 0.4737

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Answer:

-4 See Below:

Step-by-step explanation:

When you have a system of equations, you need to solve for one variable, and subsitute that variable into the other equation to solve for the other variables value.

3x +6y = 30 In this case, it would be easier to solve for x.

3x= 30-6y  Divide both sides by 3

x= 10-2y

Now we substitute for x in the other equation.

5x- 4y = 22

5(10-2y)-4y=22

50-10y-4y=22

50-14y=22 Add 14y to both sides

50= 14y + 22 Subtract 22 from both sides

28 = 14y     Divide by 14 on both sides.

y = 2

Substitute y=2 and solve for x.

x = 10- 2y

x= 10-2*2

x= 10-4

x= 6

Now we know y=2 and x=6, so we can substitute them into x-5y to find its value.

x - 5y

= 6-5*2

=6-10

= -4

So the right answer is 42.5

look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

This is not really an answer but if you photomath and type in the problem for example “9x^2+x-9=0” you’ll be able to find your answer easily

Step-by-step explanation:

Answer:

$588

Step-by-step explanation:

As each shipment has 98 balls, to determine the total cost of playground balls in three shipments, you have to multiply 98 for 3. Then, after determine the amount of balls in the three shipments, you have to multiply that for the price of each ball:

Total amount= 98*3= 294

Total cost= 294*$2= $588

The total cost of playground balls in three shipments is $588.

Answer:

5 grams

Step-by-step explanation:

5*9=45

Answer:

I think the answer is 5 grams

Sorry if it is not correct

Step-by-step explanation:

I think that it is 5 grams because 45 ÷ 9= 5

Answer:

There are three prime numbers and 3 even numbers on a number cube, so the probability of each is 3/6 = 1/2

Step-by-step explanation:

Probability of rolling a prime number on a standard number cube is  [tex]\frac{1}{2}[/tex] or 0.5.

The theoretical probability is defined as the ratio of the number of favorable outcomes to the number of possible outcomes.

Numbers on a cube are {1, 2, 3, 4, 5, 6}

Total number of favorable outcomes = 6

Number of prime numbers in {1, 2, 3, 4, 5, 6} are {2, 3, 5}.

Number of favorable outcomes = 3

Probability of rolling a prime number on a standard number cube

P = [tex]\frac{Number of favorable outcomes}{Total number of favorable outcomes }[/tex]

P = [tex]\frac{3}{6}[/tex]

P = [tex]\frac{1}{2}[/tex]

Hence, probability of rolling a prime number on a standard number cube is  [tex]\frac{1}{2}[/tex] or 0.5.

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Answer:

c

Step-by-step explanation:

use multiplication rule.

1/6 for landing a 2 on the cube and 1/3 for landing a 3 on the spinner

Answer:

A. Draw perpendicular lines

Step-by-step explanation:

Perpendicular lines are lines that intersect at a 90 degree angle. Unless you are constructing a right angle - or 45 degree angle - you would not need to draw perpendicular lines.

Therefore, answer A is correct.

Answer:

Step-by-step explanation:

answer is d- side length of 2 side length of 6 side length of 7

Answer:

It’s D.

Step-by-step explanation:

“Side length of 2, side length of 6, side length of 7”

Plsss give me Brainliest ❤️

Answer:

A) 2 units

Step-by-step explanation:

Given;

x² + y² - 4x - 4y + 4 = 0

Consider general circle equation;

(x - h)² + (y - k)² = r²

where;

(h , k ) is the center of the circle

r is the radius of the circle

x² + y² - 4x - 4y + 4 = 0

subtract 4 from both sides of the equation

x² + y² - 4x - 4y  =  - 4

square half of coefficient of x and y, and add them to both sides of the equation

x² +  - 4x + (-2)² +  y² - 4y + (-2)² = - 4 +  (-2)² +  (-2)²

factorize x and y

(x - 2)² + (y - 2)² = - 4 + 4 + 4

(x - 2)² + (y - 2)² = 4

(x - 2)² + (y - 2)² = 2²

Compare this final equation to general equation of a circle

(x - 2)² + (y - 2)² = 2²  

(x - h)² + (y - k)² = r²

r = 2

Thus, the length of a radius of the circle is 2 units

Answer:

add the diagram

Step-by-step explanation:

Answer:

the Pythagorean formula is a²+b²=c², which is a and b are the x and y distances between points and c is the hypotenuse, which is the distance.

Step-by-step explanation:

Answer:

13.1148770486

.....................,...

Answer:

126m

Step-by-step explanation:

The circumference of the circle would be the amount of fencing required for the circular garden.

Circumference, C = 2πr

π = [tex]\frac{22}{7}[/tex]

C = 2*20*[tex]\frac{22}{7}[/tex]

C = 125.71 m

We need 125.71 meters to fence the garden.

Answer:

Daniel is charged $900

Step-by-step explanation:

This is because 9 percent of 5000 is 450. Multiply 450x2 and get 900.

Answer:

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

Step-by-step explanation:

Answer:i believe it is length times width

Step-by-step explanation:

Answer:

6y people are in the boats

Step-by-step explanation:

Here, we are interested in writing an expression for the total number of people in the boats.

We have 6 people in each of the boats and there are a total of y boats.

The total number of people in the boats is thus y * 6 = 6y people

Answer:

$10

Step-by-step explanation:

(-15) + 25 = 10

Answer:

X=2

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

As they are mutually exclusive P(A and B) = 0 therefore the probability of P(A or B)= P(A) + P(B). Just do 4/5-3/10= 5/10=1/2

The value for P(B) is 1/2.

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

P(A) = 3/10, P(B) = ?, P(A or B) = 4/5.

As they are mutually exclusive P(A and B) = 0

So, P( A or B)

4/5 = P(A) + P(B)

4/5 = 3/10 + P(B)

P(B) = 4/5 - 3/10

P(B) = 5/10

P(B) = 1/2.

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Answer:

irrational

Step-by-step explanation:

sqrt(8) = sqrt(4) sqrt(2) = 2 sqrt(2)

sqrt(8) /3 = 2 sqrt(2)/3  which is an irrational number

sqrt(16) =4  which is rational

irrational + rational = irrational

Answer:

x>22

Step-by-step explanation:

Make me brainliest

RIGHT ANswer trust me

Answer:

X = 1.09

Step-by-step explanation:

6 to the 1.09th power is 7.04993094301076 so when it is rounded it is 7.

Answer:

the answer is 7

Step-by-step explanation:

log10(6x)=log10(7)

x•log10(6)=log10(7)

x = log10(7)/log10(6)

this works because of

logb(x y) = y ∙ logb(x)

I figured this out from the internet!!

source:TigerAlegbra

Answer:

16

Step-by-step explanation:

4 coins 2 out comes each

2 X 2 X 2 X 2 = 16

2^4 = 16

Hope i helped you

Answer:

16

Step-by-step explanation:

Answer:

Step-by-step explanation:

9.6/5=1.92

1.92= 1 23/25

or 48/25

Answer:

1.76

Step-by-step explanation:

Answer:

1/76

Step-by-step explanation: