Answer:
x = -5
Step-by-step explanation:
The equation y = x^2+10x+25 can be factored to (x+5)^2
when (x+5)^2 = 0
x = -5
meaning the equation has a line of symmetry at x = -5
The expected value of the game is the mean value of the game
The expected value of the game is $1
<h3>How to determine the expected value?</h3>
There are 13 spades in a deck of card of 52
So, the probability of selecting a spade is:
P(Spade) = 13/52
Simplify
P(Spade) = 1/4
Winning = $7
The probability of not selecting a spade is:
P(Not spade) = 1 - 1/4
Simplify
P(Not spade) = 3/4
Lose = $1
The expected value of the game is:
This gives
Simplify
Evaluate
Hence, the expected value of the game is $1
Read more about expected values at:
brainly.com/question/15858152
The answer is 4. You do 12 times 1/3. This is because this is important in order to find out the answer. The answer is 4.
Answer:
5 Bags
Step-by-step explanation:
There are 75 carrots and 40 celery sticks.
If we want each bag to have the same combination, the greatest number of bags we can make is determined by the Greatest common divisor of the two numbers.
To find the Greatest common divisor of 70 and 40
<u>Step 1:</u> Express each number as a product of its prime factors
- 40=2 X 2 X 2 X 5
- 75=3 X 5 X 5
<u>Step 2:</u> Pick each pair of common factors.
- 40=2 X 2 X 2 X 5
- 75=3 X 5 X 5
The only factor common to both pairs is 5.
Therefore, the Greatest common divisor of 70 and 40 is 5.
The greatest number of bags that can be made is 5.
<span><u>Answer
</u>
18 feet and 4.5 inches
<u>Explanation
</u>
You are going to use the concept of similar triangle.
∆CED≡∆CBA
This is because they share the angle at C and also they both have an angle of 90o.
Let EC = X, then BE = 2.5X. So, BE = (X + 2.5X) = 3.5X
The scale factor EC/BC=x/3.5x=2/7
EC/BC=ED/BA=2/7
BA=7/2×63 in
The height of the tree = 220.5 inches. This is equal 18 feet and 4.5 inches.
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