Multiplying binomials help please (10 points)
2 answers:
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Answer:
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>- factoring
- PEMDAS
- quadratic expression:ax²+bx+c
factoring quadratic:
- Find two numbers that multiply to give ac, and add to give b
- rewrite the middle with those numbers
- factor out common terms
- group
a is 3 and b is -7
therefore
now we need to find two numbers that give -21
to do so we need to find the factors of 21
which are
likewise,
in this case we can take any two numbers from negative and positive factors that give us -21 and -4
3 and -7 are the two numbers that multiply to give -21 (3×-7=-21) and add to give -4. (3+(-7)=-4)
now let's factor:
So, since both equate to y, we can solve for x by equating the equations to each other.
4x - 5 = -3
So: 4x = 2
So: x = 1/2, or 0.5
Now, y = -3, so the solution is (0.5, -3)
You can graph the two equations, and the point where they meet will be (0.5, -3).
4x - 5 = -3
So: 4x = 2
So: x = 1/2, or 0.5
Now, y = -3, so the solution is (0.5, -3)
You can graph the two equations, and the point where they meet will be (0.5, -3).
Given that <span>the weights of farmer carl's potatoes are normally distributed with a mean of 8.0 ounces and a standard deviation of 1.1 ounces.
The probability of a normally distributed data between two values (a, b) is given by:
</span>
The probability of a normally distributed data between two values (a, b) is given by: