5. 25, 20,
By order of operations, the answer above which is marked brainliest is incorrect
3. (3x+5)²=9x²+2*3x*5+5²= 9x²+30x+25
y=ax²+bx+c, so a=9,b=30,c=25, a+b+c=9+30+25= 64
4.how I understand, it should be solved the equation
(2^3)^(2x-1) = (2^2)^(3x+4)
so this equation has NO solutions
(if the equation was written correctly)
Sorry I took so long, this took a while to find but here are the answers!
The value of x increased by 3.25.
It is given that the value of x varies from x=2 to x=5.25.
We need to find the change is x.
If value of a variable x varies from a to b, then the change in te value of variable is
Change in x = b - a
For the given problem the variable is x, a=2 and b=5.25.
Change in x = 5.25 - 2
If the change is positive, then the value of variable increased and if the change is negative, then the value of variable decreased.
Therefore, the value of x increased by 3.25.
For number 2, because you need to make the x by itself, you multiply both sides by 5 which gives you c.
For number 3, you add both sides by 4 so you get a.
For number 4, you find the number between -5 and 0 so the answer is c.
For number 5, the answer is b. nothing much to explain.
For number 6, its the greater than with the line underneath
For number 7, the answer is d.
For number 8, b
For number 9, c
For number 10, A
The table is:
AIRPLANE LIFTING FORCE
Area of Wings Lifting Force
(square feet) (pounds)
The ratio of lifting force to the area is equivalent for all pairs in the table. What are the values of x and y?
1. Calculate x:
Ratio of lifting force to the area for the first pair (row):125/1,875
Ratio of lifting force to area for the pair with x:x/5,625
Set the proportion:
Equal the two ratiosx/5,625 = 125/1,875
Multiply both sides by 5,625 (multiplication property of equalities):x = 5,625 × 125/1,875x = 375 ← answer
2. Calculate y:
You can use the same know ratio for the first pair: 125/1,875
And set the corresponding proportion, with y:420/y = 125/1,875
Invert both sides:y/420 = 1,875/125
Multiply both sides by 420y = 420 × 1,875/125 y = 6,300 ← answer
The answer is x = 375 square feet and y = 6,300 pounds.
the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1
rick has $1400 and sally has $1500
to find amount of money rick has after 10 years :
principal = $1000 , time = 10 years , rate = 4% annually
to find amount of money sally has after 10 years :
her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500
also, sally gets $1000 after 10 years,
therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500
so, after 10 years : rick has $1400 and sally has $1500
what is the value of x for both...