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lord [1]
3 years ago
12

a contractor charges 1,200 for 100 sq ft of roofing installed how much does it cost to have 1,109 sq ft installed

Mathematics
1 answer:
Kruka [31]3 years ago
7 0

Answer:

13308

Step-by-step explanation:

100 sq ft=1200

1109sq ft=?

1109*1200/100=13308

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Which algebraic expression can be used to represent HLAF of x increased by 5
SashulF [63]

Answer:

(x+5)/2

Explanation:

So First, x is increased by 5 means x+5

And half of it means, multiply it by (1/2)

Which means x+5 * 1/2 which also is equal to (x+5)/2

6 0
3 years ago
20 POINTS, please help!!Factor the algebraic expression below in terms of a single trigonometric function.
Lubov Fominskaja [6]
Csc²x - 1

1/sin²x  -  1

1/sin²x  -  sin²x / sin²x

(1 - sin²x) / sin²x

Recall that sin²x + cos²x = 1

So cos²x = 1 - sin²x

So we can replace numerator to cos²x

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6 0
3 years ago
My brain stopped. Please help
Over [174]

Answer:

∠1 = 90°

∠2 = 66°

∠3 = 24°

∠4 = 24°

Step-by-step explanation:

Usually the diagonals of a rhombus bisect each other at right angles.

Thus; ∠1 = 90°

Since they bisect at right angles, then;

∠R1S = 90°

Now, sum of angles in a triangle is 180°

Thus;

66° + 90° + ∠4 = 180°

156 + ∠4 = 180

∠4 = 180 - 156

∠4 = 24°

Now, also in rhombus, diagonals bisect opposite angles.

Thus; ∠4 = ∠3

Thus, ∠3 = 24°

Similarly, the diagonal from R to T bisects both angles into 2 equal parts.

Thus; ∠2 = 66°

6 0
3 years ago
Help please!!!
a_sh-v [17]

Answer:

yes thats good

Step-by-step explanation:

4 0
3 years ago
I need help I been asking for hours pls help
blsea [12.9K]

Answer:

419 ft

Step-by-step explanation:

1063 ft is about 324002.4 mm

324002.4/477 to get the scale ratio. Which is 679.25:1

I am halfway through the problem and notice I should have converted mm to ft and not the other way around. It gives the same answer it just takes an extra step.

188*679.25=127699mm for one side.

Convert that back to ft and you get 418.959 which would just be 419 ft

6 0
3 years ago
Read 2 more answers
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