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snow_lady [41]
2 years ago
10

Which equation is a direct variation function? y=x y=1/4x+2 y=x2 y=4​

Mathematics
1 answer:
AveGali [126]2 years ago
3 0

Answer:

y=x

Step-by-step explanation:

The equation which is a direct variation function is

Y=X

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Trigonometry pile up. Anyone mind helping me out with this one?
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10.69-3.2=7.49\\\\tan42^o=\frac{d}{7.49};\ tan42^o\approx0.9\\\\\frac{d}{7.49}=0.9\to d\approx6.74\\\\sin37^o=\frac{6.74}{e};\ sin37^o\approx0.602\\\\\frac{6.74}{e}=0.602\to e\approx11.2\\\\11.2+4.3=15.5\\\\sin53^o=\frac{f}{15.5};\ sin53^o\approx0.8\\\\\frac{f}{15.5}=0.8\to f\approx12.4

12.4-2.2=10.2\\\\g^2=10.2^2+1.7^2\to g\approx10.34\\\\cos21^o=\frac{10.34}{h};\ cos21^o\approx0.934\\\\\frac{10.34}{h}=0.934\to h=11.07\\\\11.07+1.7=12.77\\\\sin71^o=\frac{x}{12.77};\ sin71^o\approx0.946\\\\\frac{x}{12.77}=0.946\to x\approx12.1\ (cm)\leftarrow Answer

4 0
3 years ago
Y=1x+2 y=3x-4 use substtiution
postnew [5]

Answer:

3Y - 4X - 4

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
an object falls 16t2 feet in t seconds. you drop a rock from a bridge that is 75 feet above the water. will the rock hit the wat
Goryan [66]

Answer:

No, the rock will not hit the water in 2 second but it will hit the water in t ≅ 2.17 second

Step-by-step explanation:

Let the distance be s in feet. i.e,  s= 16 t^2 where t is in second.

You drop a rock from a bridge that is 75 feet above the water.

Use the  expression s =16t^2 to solve for t:

Given: s =75 feet

then, substitute in the above expression:

75 = 16 t^2 or we can write it as:

t^2=\frac{75}{16}= 4.6875 or

t = \sqrt{4.6875}

⇒ t = 2.16506351 or t ≅2.17 second

Therefore, the rock hit the water in t≅2.17 second


5 0
3 years ago
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Jobisdone [24]

you need to do it on yourself.. it's about your body or physical

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