B. 1638
C. 81
D. 819
Answer:
30-60-90 triangle
Angle BCD = 60
Hypotenuse is 2 times the length of short leg
The long leg is times the short leg
BC = 20
Step-by-step explanation:
I think the explanations are in the questions.
You need to memorize the relationships
Answer: for first question answer is second option and other question answer is again b
Step-by-step explanation:
Firstly you already see that the median is increasing because it is first 403 and changing to 553. We can understand it increased
B. $41,600.00
C. $2,924.65
D. $2,931.45
Answer:
The balance in the account is $2931.45 .
Option (D) is correct.
Step-by-step explanation:
Formula
Where P is the principle , r s the rate of interest in the decimal form and t is the time in years .
As given
The account. $2,500 principal earning 4%, compounded quarterly, after 4 years.
P = $2500
4% is written in the decimal form
= 0.04
r = 0.04
t = 4 yeas
Put all the values in the formula
Amount = $2931.45
Therefore the balance in the account is $2931.45 .
Option (D) is correct.
Answer:
He will need to buy 3 cans.
Step-by-step explanation:
First we need to know how many tiles he will paint.
The total amount of tiles he will paint is 300 + 675 + 100 = 1075 tiles.
We know that a can of paint will cover 450 tiles, therefore, we need to divide the total amount of tiles between the number of tiles covered by can:
1075/450 = 2.38.
He will need 2.38 cans of paint. But he cannot buy this number of cans, therefore he will have to buy 3 cans and will have some paint left.
Answer:
The maximum value of x is 11.8.
Step-by-step explanation:
8.5x-24.7 <= 3x+32.5
5.5x <= 65
x <= 11.8
The maximum value of x is 11.8.