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3 years ago

7

Drag each graph to show if the system of linear equations it represents will have no

1 answer:

zimovet [89]3 years ago

3 0

That’s a good question. But I don’t know the answer

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Can someone help me with the question in the image please i will mark as brainlyest if correct

nadya68 [22]

Answer:

a

Step-by-step explanation:

3 0

3 years ago

Work out the lengths of sides a and b.<br> Give your answers to 1 decimal place.

Tju [1.3M]

Answer:

$A = \sqrt{89}$

$B = \sqrt{145}$

Step-by-step explanation:

$1)\ 8^2 + 5^2 = A^2$

$2)\ A^2 = 64 + 25$

$3)\ A^2 = 89$

$4)\ A = \sqrt{89}$

$1)\ B^2 + 12^2 = 17^2$

$2)\ B^2 + 144 = 289$

$3)\ B^2 = 145$

$B = \sqrt{145}$

5 0

3 years ago

Read 2 more answers

A skydiver weighing 180lbs (including equipment) falls vertically downward from an altitude of 5000 ft and opens the parachute a

Annette [7]

<span>For the presented problem, the solution would be</span><span> </span><span>v</span><span>(0)=0</span><span>v(0)=0</span><span> is</span><span>v</span><span>(</span><span>t</span><span>)−</span><span>mgb</span><span>=</span><span>e</span><span>−</span><span>b</span><span>/</span><span>m</span><span>⋅</span><span>t</span><span>(</span><span>v</span><span>0</span><span>−</span><span>mgb</span><span>)</span><span>⟺</span><span>v</span><span>(</span><span>t</span><span>)=</span><span>mgb</span><span>(</span><span>1−</span><span>e</span><span>−</span><span>b</span><span>/</span><span>m</span><span>⋅</span><span>t</span><span>)</span><span>≈</span><span>g</span><span>⋅</span><span>t</span><span>−</span><span>gb</span><span>2</span><span>m</span><span>⋅</span><span>t</span><span>2</span><span>, with the following given, </span><span>
m</span><span>=180[lb]=81.6[kg]</span><span> </span>

<span>g</span><span>=9.81[m/s</span><span>2</span><span>]</span><span />

<span>b</span><span>=0.75[kg</span><span>⋅</span><span>m/s</span><span>2</span><span>⋅</span><span>s/ft]=0.2286[kg/s]</span><span />

<span>The solution that the friction provides is </span><span>v</span><span>(</span><span>t</span><span>)=3501.7[m/s]</span><span>⋅</span><span>(</span><span>1−</span><span>e</span><span>−0.00280[1/s]</span><span>⋅</span><span>t</span><span>), where I get </span><span><span>96.69</span></span><span /><span><span><span><span>[</span></span><span /><span><span>m</span></span><span /><span><span><span><span>/</span></span></span></span></span><span><span><span>s</span></span><span /><span><span>]</span></span></span><span>=</span></span><span /><span><span>317.2</span></span><span /><span><span><span><span>[</span></span><span /><span><span>f</span><span>t</span></span><span /><span><span><span><span>/</span></span></span></span></span><span><span><span>s</span></span><span /><span><span>]</span></span></span></span><span><span /></span><span>. I am hoping that this answer has satisfied your query about this specific question.<span /></span>

7 0

3 years ago

To which subset numbers does the following number belong?

Yakvenalex [24]

Rational number which is answer b

6 0

3 years ago

Please answer now question

jarptica [38.1K]

Answer:

<h2> 1664 yd²</h2>

Step-by-step explanation:

P = 2•(¹/₂•24•16) + 2•(20•20) + 24•20 = 384 + 800 + 480 = 1664 yd²

5 0

4 years ago