Answer:
to do everything u did. but backwards, OR to ask someone else the same question and if they get the same answer then yeah...
<span>What is the simplified form of the expression 7[63÷(5^2-2^2)-1]?
</span>7[63÷(5^2-2^2)-1]
= 7[63÷(25-4)-1]
= 7[63÷(21)-1]
= 7[3-1]
= 7 (2)
= 14
answer is <span>C. 14
</span><span>Which is a solution of the equation y=4x+3?
answer is
C. (4,19)
</span>y=4x + 3
19 = 4(4) +3
19 = 16 +3
19 = 19
Answer:
The equations are:


Step-by-step explanation:
Let:


For Tina:

For Doug:

Solving for the price of both items:
We have:
--- (1)
--- (2)
Multiply (2) by 2
2 * (
)
-------------------
--- (3)
Subtract (3) from (1)


----------------------



Solve for P


Substitute 1.25 for P in (2)



Collect Like Terms


Solve for H


Answer:
The function rule in slope-intercept form is:

Step-by-step explanation:
The slope-intercept form of a function is given as:

Here
m is the rate of change of function and b is the y-intercept
The rate of change is calculated as:

For this, any two pairs of input and output can be taken.
So using the pairs (1,-3) and (2,-1)

Putting the value of slope in slope-intercept form

Putting (1,-3) in the equation

Putting the value of b

Hence,
The function rule in slope-intercept form is:

Answer:
B. y² – 5y = 750
C. 750 – y(y – 5) = 0
E. (y + 25)(y – 30) = 0
I'm assuming the 2 in the second option is supposed to be an exponent.
Step-by-step explanation:
Length = y
Width = y-5
Length × Width = Area
Area = <u>y(y-5)</u> = 750
<u>Distribute.</u>
y²-5y=750 (B is correct)
<u>If you factor the equation above</u>
(y + 25)(y – 30) = 0 (E is correct)
Area = y(y-5) = 750
<u>Subtract y(y-5) from both sides.</u>
750-y(y-5) = 0 (C is correct)