<u>Answer:</u>
- 31 mm² is the surface area.
<u>Step-by-step explanation:</u>
<u>We know that:</u>
- Surface area of triangle = 3(1/2 x 4 x 4) + (1/2 x 4 x 3.5)
<u>Work:</u>
- 3(1/2 x 4 x 4) + (1/2 x 4 x 3.5) mm²
- => 3(2 x 4) + (2 x 3.5) mm²
- => 24 + 7 mm²
- => 31 mm²
Hence, <u>31 mm² is the surface area.</u>
Hoped this helped.

Answer:
Step-by-step explanation:
If y is proportional to x,
y ∝ x
y = kx
k = 
Here, k = Proportionality constant
For y = -8 and x = -4,
k = 
k = 2
For y = -4 and x = -2
k = 
k = 2
For all values of x and y proportionality constant = 2.
For x = 0 and y = 0,
If we graph a line passing through these points, the line will pass through the origin (No y-intercept).
And we know that any line passing through the origin represents the proportional relation between x and y variables.
Therefore, given table represents the proportional relation.
Answer:
2.7
Step-by-step explanation:
x^2=5.8*1.3=7.54
x=V7.54=2.7
Answer:
f(-5) = 6
Step-by-step explanation:
f(x) = x + 11
Let x = -5
f(-5) = -5+11
f(-5) = 6
Answer: Third option.
Step-by-step explanation:
You know that the drawbridge rises at a rate of
feet per minute. This means that the drawbridge rises
in a minutes.
Convert from mixed fraction to decimal number:
Since the drawbridge rises to a height of 50 feet, you need to apply this procedure in order to find the time the drawbridge takes to completely rise:
or