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sweet [91]
3 years ago
9

Evaluate the expression 120n + 160,500 when n= 32. n=______

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0
120(32) + 160,500
= 3840 + 160,500
= 164,340
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Mark drew two triangles and 8 arrows as part of a set of 13 shapes. The only other type of shape in the set is a circle. What fr
luda_lava [24]

Answer:

3/13

Step-by-step explanation:

First...

What we know

1. There is a set of 13 shapes.

2. With 2 triangles, 8 arrows, and circles.

Next...

Take the number of triangles and arrows and add them up.

2 + 8 = 10

Finally...

Convert it into the fraction 10/13 and subtract it by the total 13/13.

This results 3/13.

3 0
3 years ago
An arched drainage culvert can be modelled by the function:
Zanzabum

Substitute 136.5 for y.

136.5=\frac{x(191-x)}{60}

8190=x(191-x)

8190=191x-x^{2}

x^{2} -191x+8190=0

Compare this equation with ax^{2} +bx+c=0

a = 1, b = - 191, c = 8190

x=\frac{-b+\sqrt{b^{2}-4ac } }{2} or

x=\frac{-b-\sqrt{b^{2}-4ac } }{2}

x=\frac{191+\sqrt{191^{2}-4(1)(8190) } }{2} or

x=\frac{191-\sqrt{191^{2}-4(1)(8190) } }{2}

x=\frac{191+\sqrt{36481-32760 } }{2} or

x=\frac{191-\sqrt{36481-32760 } }{2}

x=\frac{191+\sqrt{3721 } }{2} or

x=\frac{191-\sqrt{3721 } }{2}

x=\frac{191+61}{2} or

x=\frac{191-61}{2}

x=\frac{252}{2} or

x=\frac{130}{2}

x = 126 or x = 65

Hence, the points on the curve are (65, 136.5) and (126, 136.5).

The width of the air space is the distance between these points.

Width = \sqrt{(x_{2}- x_{1})^{2} +( y_{2}- y_{1}) ^{2}

= \sqrt{(126- 65)^{2} +(136.5-136.5) ^{2}

= 126 - 65

= 61

Hence, width of the air space is 61m.



5 0
3 years ago
Help please I'll give brainliest and a vote!!!
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Answer:

Quality Plumbing charges more per hour.

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A Plus Plumbing charges $140 for their work plus $60 per hour.

7 0
2 years ago
How many different triangles can be constructed with three angles, each measuring 30°?
faust18 [17]
Okay to have a complete triangle with 3 angles  it must add up to 180° So therefore if you have  30° For each angle  which adds up too 90°. We're are still missing 90 more degrees. So that means we can't  make a triangle at all.
5 0
3 years ago
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Does anyone know how to factor
juin [17]

Answer:

Factoring is taking the greatest factor of an equation/expression and putting it behind parenthesis.

For example:

2+4: Factor it

2 is the greatest factor of the two

SO

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Ill give you a try it and you can factor it. I might check it later on.

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If you are looking for something harder:

4x^4+ 6x^6

6 0
3 years ago
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