Answer:
Step-by-step explanation:
Given
If the temperature falls by in 3 hours
Present temperature is
The difference in temperature i.e.
Temperature 3 hours ago is
In this problem, two binomials are being multiplied.
First, you see the First terms multiplied together, x^2 and -5x^2.
Then you see the Outside terms multiplied together, x^2 and x.
Next, you see the Inside terms multiplied together, -2 and -5x^2.
Finally, the Last terms are multiplied together, -2 and x.
Put together the bold letters above and you spell FOIL.
FOIL is a way to remember how to multiply two binomials.
F - multiply the First terms.
O - multiply the Outside terms.
I - multiply the Inside terms.
L - multiply the Last terms.
In general, to multiply to binomials
(a + b)(c + d) =
F: ac
O: ad
I: bc
L: bd
= ac + ad + bc + bd
Answer: Choice A. FOIL
Answer:
Step-by-step explanation:
<u>Nancy's balance:</u>
- 750*(1 + 0.06)^30 = $4308 <em>rounded to whole number</em>
<u>Alex's balance:</u>
- 1500*(1 + 0.06)^15 = $3595 <em>rounded to whole number</em>
<u>Options:</u>
A. Nancy's balance would be greater than Alex's in the end.
B. Nancy's balance is $4,308 and Alex's balance is $3,595.
C. Alex's balance would be greater than Nancy's in the end.
D. The investment and balance would be the same in the end.
Answer:
1. 52
2. 2.9
Step-by-step explanation:
To find the mean, we take all the numbers, add them up then divide by the number of numbers.
1. mean height
mean = (50+54+52+56+48)/5
=260/5
=52
52 inches
2. mean score
There are 5+3+12+2+6+6+4 students = 38 students
Multiply the number of students times the score and add together
total points = (0*5+1*3+2*12+3*2+4*6+5*6+6*4)
= 111
The mean is the total points divided by the number of students
mean = 111/38
=2.92
Answer:
x=80
Step-by-step explanation:
The sum of interior angles in a quadrilateral is 360°
the square represents a right angle= 90 degrees
124+66+90=280
360-280=80
x=80