3x^2+7x+4
Use the FOIL method, 3x•x +3x•1+4•x+4•1
3x^2+7x+4
Answer:
a) 
b) -14
c) -3
d) -96
Step-by-step explanation:
a) The parenthesis indicate multiplication.
b) Minus and plus gives subtraction, and the sign you put behind the number is the sign of the largest number you have (in this case it's 21 since we ignore the -)
c) They already have common denominators, all that's left is to do 
d) The parenthesis indicate multiplication.
Good luck!
The amount of money you deposit into the account is $3000
<h3>How much money did you deposit into the account? </h3>
The given parameters are
Rate, r = 8%
Time, t = 5 years
Interest, I = $1200
The formula of simple interest is
I = PRT
So, we have
1200 = I * 8% * 5
This gives
1200 = I * 0.4
Divide both sides by 0.4
I = 3000
Hence, the amount of money you deposit into the account is $3000
Read more about simple interest at:
brainly.com/question/20690803
#SPJ1
Answer:
1. $1650
2. $1415.52
3. $5540
4. No
5. 145
6. No
Step-by-step explanation:
1. 2230 - 580
2. 157.28 x 9
3. 6630 - 1090
4.
5. 725 - 580
Hope this helps!
We need to find the probability of the card chosen at random is yellow or brown.
So, since there are 3 yellow cards and 7 brown cards, the total numbers of cards that are yellow or brown is:

Now, the probability that the chosen card is yellow or brown can be found by dividing the above value by the total number of cards in the box.
The total number of cards in the box is:

Thus, that probability is given by:

Therefore, the answer is: