A right triangle has a leg of 11 cm and a hypotenuse of 17 cm.
2 answers:
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Answer:
Each piece of ribbon lengths 2.55 feet.
Step-by-step explanation:
A 30-foot piece of ribbon that Elena has cut for a craft project. Then she cuts off 7 feet from this.
So, the remaining length of the ribbon for the craft project will be (30 - 7) = 23 feet.
Now, then she cuts the remaining piece into 9 equal lengths of feet each.
Hence, each piece of ribbon lengths feet. (Answer)
Answer:
17,576,000
Step-by-step explanation:
From A to Z, there are 26 possible letter characters (L).
From 0 to 9, there are 10 possible numeric characters (N)
If each standard automobile license plate number in Pennsylvania follows the pattern LLLNNNN, the number of license plates that can be formed is:
17,576,000 distinct license plate numbers can be formed in Pennsylvania.
Answer:
There are many different types of expressions.
To factor expressions with variables, the first thing is to <u>take out any common factors always</u> across all terms.
Ex: 5x + 15
= 5(x + 3)
To factor trinomials with one variable (standard form): , after taking out the common factor if there is one, you can:
i) Use the quadratic formula.
ii) Decomposition (factors of a and c multiply and added to give b)
Ex: 2x² - 7x + 3 2 * -3 = -6
(2 -1 ) 1 * -1 = -1
(1 -3 ) -6 + -1 = -7
=(2x-1)(x-3)
Trinomials with two variables like: ax² + bxy + cy² = 0
Use decomposition but include the second variable.
Ex: 2x² - 7xy + 3y² 2 * -3 = -6
(2 -1 ) 1 * -1 = -1
(1 -3 ) -6 + -1 = -7
=(2x-1y)(x-3y)
When a square value is being subtracted from another square value.
Difference of squares: = (√x² - √y²)(√x² + √y²)
Ex: 36x² - k²
= (6x - k)(6x + k)