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oksian1 [2.3K]
3 years ago
13

I need you to explain your answer, please.

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0

Answer:

7√6 - 5√7  

Step-by-step explanation:

5√7 + 12√6 - 10√7 - 5√6    (rearranging)

= (5√7 - 10√7) + (12√6  - 5√6)   (factor out √6 and √7 respectively)

= (5 - 10) √7  + (12  - 5)√6

=  -5√7  + 7√6  (rearrange)

=  7√6 - 5√7  

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Help me pleaseeeeee!!!!!
Evgen [1.6K]

Answer:

The triangle is an isosceles triangle

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%283x%5E%7B3%7D%20y%5E%7B2%7D%20z%29%282xy%5E%7B5%7D%20z%5E%7B5%7D" id="TexFormula1" title="(3
castortr0y [4]
<h3 /><h3>( {3x}^{2}  {y}^{2} z) \: ( {2xy}^{5}  {z}^{5} ) \\  = 6  {x}^{2}  {y}^{2}  {xy}^{5}  {z}^{6}</h3><h3>[ Multiply all digits and variables according to there same value ]</h3>

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em><em> ❤️</em>

8 0
3 years ago
Help Please!!!!!!!!!!!!!
zheka24 [161]

Answer:

A. 2086 yd²

Step-by-step explanation:

SA = 2lw + 2wh + 2lh
SA = 2*17*20 + 2*20*19 + 2*17*19
SA = 680 + 760 + 646
SA = 2086
Hope this helps :)

3 0
3 years ago
PLEASE HELP! WILL GIVE BRAINLIEST!!
Maslowich

Your answer is -6+3i.

6 0
3 years ago
Read 2 more answers
Compute the loss of head and pressure drop in 200 ft of horizontal 6-in diameter asphalted cast iron pipe carrying water with a
laiz [17]

Answer:

The answer is below

Step-by-step explanation:

12 inches = 1 ft.

6 inches = 6 inches * (1 ft./12 inches) = 0.5 ft.

Therefore the diameter of the cast iron (D) = 6 inches = 0.5 ft.

The area of cast iron (A) = πD²/4 = π(0.5)²/4 = 0.196 ft²

The velocity (V) = 6 ft./s, the acceleration due to gravity (g) = 32.2 ft./s²

ε/D = 0.0004 ft./ 0.5 ft. = 0.0008

Using the moody chart, find the line ε/D = 0.0008 and determine the point of intersection with the vertical line R = 2.7 * 10⁵. Hence we get f = 0.02.

The head loss (h) is:

h_f=f*\frac{L}{d}* \frac{V^2}{2g}=0.02*\frac{200\ ft}{0.5\ ft} *\frac{(6\ ft/s)^2}{2*32.2\ ft/s^2}=4.5\ ft

The pressure drop (Δp) is:

Δp = ρgh_f = (62.4\ lbf/ft^3)(4.5\ ft)= 280\ lbf/ft^2

5 0
3 years ago
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