How do I solve n^2-5n-14=0 by factoring
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Related Questions
Please give an accurate answer and show work.
A car and a motorcycle leave at noon from the same location, heading in the same direction. The average speed of the caris 30 mph slower than twice the speed of the motorcycleIn two hours, the car is 20 miles ahead of the motorcycle. Find thespeed of both the car and the motorcycle, in miles per hour.
In the parking lot at Central, there are 21 blue cars and 75 cars total. What is the ratio of blue cars to cars that are not blue in simplest form?
A flashlight costs $12.00. The sales tax is 6%. What is the amount of the sales tax?
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y = x² + 6x + 3
y - 3 = x² + 6x
6x ⇒ 6x / 2x = 3 ⇒ 3² = 9
y - 3 + 9 = x² + 6x + 9
y + 6 = (x+3)²
y = (x+3)² - 6
vertex of the parabola is (x+3)²
y = (x+3)(x+3) - 6
y = x(x+3)+3(x+3) - 6
y = x² + 3x + 3x + 9 - 6
y = x² + 6x + 3
t(4 + 1)
t(5)
5t
What property or properties were used to prove that the expressions are equivalent?
commutative and distributive properties
associative and distributive properties
associative and commutative properties
associative property
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The proof used the distributive property and the associative property of multiplication.
Option B is the correct answer.
What is an expression?
An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the liketerms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
To be specific, the distributiveproperty was used to break down the expression 4t + t as:
4t + t = (4 + 1)t ________(1)
And then the associativeproperty was used to rearrange the terms as:
(4 + 1)t = 5t ________(2)
From (1) and (2)
We have shown that 4t + t is equivalent to 5t.
Thus,
The proof used the distributive property and the associative property of multiplication.
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Answer:
its A: commutative and distributive properties
Step-by-step explanation:
i got it right
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x + y = 60
2x + 10 y = (4)(60)
The values of x and y from the equations are 45 and 15 minutes, respectively. Therefore, John needs 15 minutes to service a cable box.
In 2017, she was awarded a 2% pay increase on her monthly salary.
Given that in 2017 Alicia worked 45 hours per week for 48 weeks,
work out her average pay per hour for the year.
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Final answer:
To calculate Alicia's average pay per hour for the year, we need to find her total earnings for the year and divide it by the total number of hours she worked.
Explanation:
To calculate Alicia's average pay per hour for the year, we need to find her total earnings for the year and divide it by the total number of hours she worked. In 2016, Alicia earned £1750 per month, so her annual salary would be £1750 x 12 = £21,000.
In 2017, she received a 2% pay increase, which means her monthly salary would be £1750 + 2% of £1750 = £1750 + (£1750 x 0.02) = £1750 + £35 = £1785.
Since Alicia worked 45 hours per week for 48 weeks in 2017, her total number of hours worked for the year would be 45 hours/week x 48 weeks = 2,160 hours. Now, we can calculate her average pay per hour by dividing her total earnings (£1785 x 12) by the total number of hours worked (2,160): £1785 x 12 / 2,160 = £10 per hour.
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AnswerAverage pay per hour 19.15
Step-by-step explanation:
1750 + 2% = 1785 pay increase
1785 x 12 months = 21420 a year
21420 divided by 52 weeks in a year averages to 411.92 weekly
Divide 411.92 by the 45 hours of work is 19.15 per hour
Brainliest please, if correct.
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To solve the problem we first have to convert the fraction into a decimal. To convert a fraction into a decimal you have to divide the numerator by the denominator.
7/8
= 7 ÷ 8
= 0.875
0.875 is bigger then 0.78 therefore 7/8 is greater.
Answers
is it in a single term
Final answer:
The expression 5x + 2x simplifies into 7x. Substituting the values 1, 2, 3, 4, and 5 for x in both expressions yields the results 7, 14, 21, 28, and 35 for 5x + 2x, and 6, 13, 20, 27, and 34 for 7x - 1.
Explanation:
The expression 5x + 2x can be simplified into a single term by adding the coefficients of similar terms. This means you add the 5 and 2 together. The result is 7x.
For substituting different values into the expressions 5x + 2x and 7x - 1, let's use 1, 2, 3, 4, and 5 as the values for x.
- For x=1: 5(1) + 2(1) = 7 and 7(1)-1 = 6
- For x=2: 5(2) + 2(2) = 14 and 7(2)-1 = 13
- For x=3: 5(3) + 2(3) = 21 and 7(3)-1 = 20
- For x=4: 5(4) + 2(4) = 28 and 7(4)-1 = 27
- For x=5: 5(5) + 2(5) = 35 and 7(5)-1 = 34
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