The answer would be 28 feet, to get area you do length times width, 7 x 4 = 28
<u>B) </u>
<u>C) </u> volume = 
.
<u>Step-by-step explanation:</u>
Here we have , The base of an open rectangular box is of length (2x+5) cm and width x cm. The area of this base is 58cm^2. The height of the open box is (x-2) cm. We need to find the following :
a) show that 2x^2+5x-58=0
We know that area of rectangle = 
⇒ 
Putting values according to question we get :
⇒ 
⇒ 
⇒ 
b) solve the equation in the question above, giving your answer to 2 decimal places
Solving this equation :
⇒
By quadratic formula
⇒ 
⇒ 
⇒ 
⇒ 
{ Since side can't be negative ! }
⇒
c) calculate the volume of the box, stating units of you answer
Since x = 4.28 , other sides are
We know that volume is given by :
⇒ 
⇒ 
⇒
Therefore , volume = .
Algebraically, find the zeroes (x-intercepts) of each quadratic .A quadratic function is shown in the table below Which of the ... Consider the quadratic function whose equation is f(x) = x2 + 2x -8. ... y = 4x – 5 and y = 2x2 – 5x-10 ..X-4=0. Xx2zo. Factored. +2. ) (x-ulzo. ) who form. X-4x+3x-&co x²-2x 8-0
Answer:
<em>45 and 135</em>
Step-by-step explanation:
The sum of any interior angles will be 180 so you divide 180 by 4. And you get <em>45</em> then you multiply that by 3 and you get <em>135</em>
Answer:
-2x² - 16x + 4
Step-by-step explanation:
Step 1: Write out expression
6x² - 9x + 3 - (8x² + 7x - 1)
Step 2: Distribute negative
6x² - 9x + 3 - 8x² - 7x + 1
Step 3: Combine like terms (x²)
-2x² - 9x + 3 - 7x + 1
Step 4: Combine like terms (x)
-2x² - 16x + 3 + 1
Step 5: Combine like terms (constants)
-2x² - 16x + 4
