Hi there!
6x² - x - 2
To solve, we must factor into the following format:
(ax - b)(cx - d)
The following conditions must be met:
a · c = 6
da + bd = -1
b · d = -2
By guessing and checking, we get:
(3x - 2)(2x + 1)
Answer:
sin(x) =
x = 16.26°
Step-by-step explanation:
First use Pythagorean theorem to find the length of the hypotenuse. Use . Since we know a and b we can plug in to find c. When we plug in we get: . When we solve this out we get 25 = c.
Now that we know the value of c, we also know sin(x) = . Using this we see that sin(x) = .
To get the exact degree value of x, take the inverse sin of :
which gives us 16.26020° rounded to 16.26°
The cost of one pair of shoes is $8.
The cost of one shirt is $12.
<h3>What are the linear equation that represent the question?</h3>
2a + b = 32 equation 1
2a + 3b = 48 equation 2
Where:
- a = cost of 1 shirt
- b = cost of one pair of shoes
<h3>What is the cost of one pair of shoes?</h3>
Subtract equation 1 from equation 2
2b = 16
b = 16/2
b = $8
<h3>What is the cost of one shirt?</h3>
Substitute for b in equation 1
2a + 8 = 32
2a = 32 - 8
2a = 24
a = 24 / 2
a = $12
To learn more about simultaneous equations, please check: brainly.com/question/25875552
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Answer:
Step-by-step explanation:
Each gallon of gas is used on 23.5 miles. So if you think about it, if Camila drives her car yy miles and uses xx amount of gas, just multiply 23.5 x yy and that will get you your answer!
The answer might be 18x^2+19x+35