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alexandr1967 [171]
4 years ago
14

Which operation would you do third in the following problem?

Mathematics
2 answers:
Lina20 [59]4 years ago
4 0
Pretty sure it is division
zaharov [31]4 years ago
3 0

Answer:

I believe it is C. division

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A circular running track is 1/4 mile long. Elena runs on this track completing each lap in 1/4 of an hour. What is Elena's runni
daser333 [38]

Answer:

She is going 1mph

Step-by-step explanation:

each lap is 1/4 of a mile and 1/4 of an hour so 4 laps = 1 mile and in 1 hour

7 0
3 years ago
HELP! NOW! <br> Prove the trig identity:<br> 3sinx/1-cosx=3cscx+3cotx
vichka [17]

Step-by-step explanation:

Given

To Prove

\dfrac{3\sin x}{1-\cos x}=3\csc x+3\cot x

Take the Left side of equation and rationalize

\Rightarrow \dfrac{3\sin x}{1-\cos x}\times \dfrac{1+\cos x}{1+\cos x}\\\\\Rightarrow \dfrac{3\sin (1+\cos x)}{1-\cos^2 x}\\\\\Rightarrow \dfrac{3\sin (1+\cos x)}{\sin^2 x}\\\\\Rightarrow \dfrac{3\sin x}{\sin ^2x}+\dfrac{3\sin x\cos x}{\sin^2 x}\\\\\Rightarrow \dfrac{3}{\sin x}+\dfrac{3\cos x}{\sin x}\\\\\Rightarrow 3\csc x+3\cot x

Left side is equal to right side

Hence, proved

5 0
3 years ago
Graph the linear equation -2x - y = 2
kykrilka [37]

Answer:

gc

Step-by-step explanation:

8 0
3 years ago
Triangles A and B are congruent.<br>Find the perimeter of triangle A. Give your answer to 1 dp.​
CaHeK987 [17]

Pythagorean Theorem: a² + b² = c²

If Triangle A ≅ Triangle B, then hypotenuse length of A would be 9 cm and the another side of triangle A is stay 6 cm.

{6}^{2}  +  {x}^{2}  =  {9}^{2}

36 +  {x}^{2}  = 81

{x}^{2}  = 81 - 36 = 45

45 = 3 \sqrt{5}  = x

Perimeter of triangle a :

9 + 6 + 3 \sqrt{5}  = 15 + 3 \sqrt{5}

Hope this helps ^-^

8 0
3 years ago
Write the equation of the line perpendicular to y= 2/5x+6/6 that passes through the point (-2,6)
Oliga [24]
The line to find: y = mx + b
the line perpendicular to y= 2/5x+6/6 so it has the slope m × 2/5 = -1
thus the slope m = -5/2
the line passes through the point (-2,6) so:
6 = (-5/2)×(-2) + b so b = 1


the equation of the line is y = -5/2x +1
3 0
4 years ago
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