Answer:45 feet
Step-by-step explanation:I believe this answer makes the most sense
Answer:
1) area = (x + 3)(2x + 3) ft²
2) 299 ft²
Step-by-step explanation:
<u>Question 1</u>
Area of a rectangle = width x length
Given:
- width = x + 3
- length = 2x + 3
⇒ area = (x + 3)(2x + 3) ft²
<u>Question 2</u>
If x = 10:
⇒ area = (10 + 3)(2(10) + 3)
= 13 · 23
= 299 ft²
The equation of the tangent to the curve at the point P(2, -10) is:
y = 8x - 26



We need to find the coordinates of point Q where the slope of the tangent to the curve f(x) must also be 8.

Now we have a quadratic:

which simplifies to:

which factorizes to:(x + 4)(x - 2) = 0
Therefore x = -4, 2.
f(-4) = 48
Therefore the coordinates of Q are (-4, 48).
10 separated into 5 groups is 10/5
5 goes into 10 2 times.
10/5=2
The correct answer is 4.8 hours
Explanation:
This mathematical problem can be solved by using the rule of three, which involves finding an unknown value by using three related values. The process is shown below:
1. It is known a fully charged battery (100% battery) lasts 16 hours. This can be represented as 100 = 16. But it is not know how much a 30% battery last; this can be represented as 30 = x.
2. Write all the values
100 = 16
30 = x
3. Cross multiply to create an equation and solve the equation
100 x = 48
x = 480 / 100
x = 4.8