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fredd [130]
3 years ago
15

3.14

"absmiddle" class="latex-formula">
​
Mathematics
2 answers:
Nonamiya [84]3 years ago
7 0
The answer is 25.12
3.14x8
Sveta_85 [38]3 years ago
4 0
The answer will be 25.12
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each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 ft if there are four blades on th
Sunny_sXe [5.5K]

The total area of the blades is the area of a triangle multiplied by 4.

We have then:

A = (4) * (1/2) * (b) * (h)

Where,

b: base of the blades

h: height of the blades

Substituting values we have:

A = (4) * (1/2) * (7) * (4)

Doing the calculation we have that the area of the blades is given by:

A = 56 feet ^ 2

Answer:

The total area of the blades is:

A = 56 feet ^ 2

6 0
3 years ago
Read 2 more answers
Please help- as soon as possible- <br> Multiply (a+2) (a-4)=
Tresset [83]

Answer:

a2+2a−8

Step-by-step explanation:

Expand (a+4)(a−2)(a+4)(a-2) using the FOIL Method.

a⋅a+a⋅−2+4a+4⋅−2

8 0
3 years ago
If one of the angle is 60 degree and the other two are in the ratio 1:2,<br> find the angles.
ololo11 [35]

Answer:

Let the two angles be x and 2x

Sum of angles of triangle=180°

60+x+2x=180

3x=180-60

x=120/3

x=40

2x=80

Step-by-step explanation:

40 and 80 are other two angles

3 0
3 years ago
One number is 3 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 500,
Likurg_2 [28]
<span>Let the first number be x.
Then the second number is 3x.
Then the third number is (x+100).
Sum of the numbers=500

x+3x+(x+100)=500</span>
<span>4x+(x+100)-500=0
</span><span>5x=400</span>
<span>x=80
</span><span>The first number is 80.
The second number is 240.
The third number is 180.

We can check by adding all three of those numbers together: 80+240+180 = 500
</span>
Hope this helps! If you have any questions just ask!
8 0
3 years ago
Pq=6x+25 and qr=16-3x; find pr
Viktor [21]

Given:\\\overline{PQ}=6x+25\\\overline{QR}=16-3x\\\\Finding:\overline{PR}

If \; Q \; is \; a \; point \; in \; between \; the \; line \; segment \; \overline{PR}, \; \\ then \; the \; distance \; of \; line \; segment \; \overline{PR} \; \\ can \; be \; found \; by \; adding \; line \; segment \; \overline{PQ} \; and \; \overline{QR}.

Using \; the \; concept \; \overline{PQ}+\overline{QR}=\overline{PR} \;,\\ we \; need \; to \; set \; up \; an \; equation \; given \; below:

\overline{PR} =6x+25 +16-3x\\\\Step \; 1: Grouping \; Like \; Terms\\\overline{PR} =6x-3x+25 +16\\\\Step \; 2: Combining \; Like \; Terms\\\overline{PR} =3x+41

Conclusion:

\overline{PR} \; is \; represented \; the \; expression \; 3x +41

3 0
3 years ago
Read 2 more answers
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