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inna [77]
3 years ago
6

Each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 feet. If there are four blades on

the windmill, what is the total area of the blades 1.56 ft2 2.14 ft2 3.28 ft2 or 4.96 ft2 im unsure of this one but im going with 2.,
Mathematics
2 answers:
goldenfox [79]3 years ago
4 0
<span>The area of a blade with rectangular shape = 1/2 * b * h where b is the base and h, the height. Here b = 7 and height = 4 So the area of the blade = 1/2 * 7 * 4 = 14ft^2 If the are four blades the total area is the summation of individual blade. So area = 14 + 14 + 14 + 14 = 56ft^2. Hence none of the option satisfies the answer.</span>
Citrus2011 [14]3 years ago
4 0
I cant answer this one because the choices are wrong and there's no right answer
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Zarrin [17]

Answer:

Slope(m)=3

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Proportional

Step-by-step explanation:

m = -6--12/-2--4

m=6/2

m=3

-12 = 3(-4) + b

-12 = -12 + b

0=b

3 0
2 years ago
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Need help i have been stuck on this problem
liberstina [14]
The second one is correct
4 0
3 years ago
For the function y=-3+ cos (x + 4)], what is the minimum value?
Mrac [35]

Answer:

-4 is the mimumum of y=-3+cos(x+4)

Step-by-step explanation:

The minimum value of y=cos(x) is -1.

The minimum value of y=cos(x+4) is still -1; the +4 inside the cosine function only affected the horizontal shift.

The minimum value of y=-3+cos(x+4) is -3-1 which is -4.  This brought the graph down 3 units so if the minimum was previously -1 and it got brought down 3 units then it's new minimum is -4.

5 0
2 years ago
A couple want to buy a house that costs $542 000. They pay a 20% deposit and borrow the rest of
Tanya [424]

Answer:

$146.00 a month I hope that's what you're look for

Step-by-step explanation:

go to Khan academy they give free math explainations

6 0
1 year ago
HELP
uranmaximum [27]
20% of 60 is 12

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The friend is incorrect because that is 20% of 300 not 60
4 0
2 years ago
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