Answer:


Step-by-step explanation:
You take the negative out of the exponent and move it down to the denominator.
Then, you find the answer to the denominator.
Answer:
has a right angle to hold the billboard upright. Since a triangle is 180, and there' s a right angle, then when you add angle A and angle B together, they should add up to 90.
Step-by-step explanation:
A = 2B + 15
A + B = 2B+15 + B = 90
3B + 15 = 90
3B = 75, so B = 25 degrees
90 - B = A, so A = 65 degrees
Answer:
See below
Step-by-step explanation:
The score increase was 35 points. They claimed an increase of at least 50 points. For a significance level of 5%, the z-score for the situation needs to be at smaller than -1.645. For a significance level of 1%, the z-score needs to be smaller than -2.325
The z score for our situation: z = (385 - 350)/50 = 0.7
The average score of 385 of Tutor O-Rama scores is not significantly different from the average of the other students SAT scores. The evidence doesn't support their claim of being effective tutoring.
Answer:

Step-by-step explanation:
<u>Step 1: Expand the equation
</u>


<em>Foil</em>


<em>Combine</em>

Answer: 
Answer:
Constant
Step-by-step explanation:
there numbers with no variables next to them and coefficient's do. :)