3 years ago

Help help. I’m confused

1 answer:

7 0

It can't be A, B, nor C because some of the equations wouldn't have a straight line if displayed in a graph. For example A has a square root symbol and b and a have an exponent they would create a perebula where that would mean the equations would not make a straight line. However, Choice d doesn't have any exponents, or square root symbols meaning the equation could slope up or down in a STRAIGHT line in a graph.

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Last question for today ✌

miv72 [106K]

Answer:

I think it is D

Step-by-step explanation:

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2 years ago

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a circle has a radius of 4 an arc in this circle has a central angle of 288 what is the length of the arc

AnnZ [28]

Answer:

20.1 units

Step-by-step explanation:

2πr * X/360, where X = angle measure

2(3.14)(4)(288/360)

20.1 units

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2 years ago

If y varies jointly with x and z, and y = 200 when x = 8 and z = 10, what is x when y = 165 and z = 11?

vova2212 [387]

Answer:

The answer is 2.5

The next blank is 6

8 0

2 years ago

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Find all zeros of ƒ(x) = 2x^4 – 72x^2. Then determine the multiplicity at each zero. State whether the graph will touch or cross

AleksandrR [38]

Answer: See below

Step-by-step explanation:

To find the factor,

f(x) = 0

$\begin{aligned}&2 x^{4}-72 x^{2}=0 \\&2 x^{2}\left(x^{2}-36\right)=0 \\&x^{2}\left(x^{2}-36\right)=0 \\&x \times x \times(x-6) \times(x+6)=0 \\&\mathrm{x}=0,0,6,-6\end{aligned}$

So,

x = 0 multiplicity 2

x = -6 multiplicity 1

x = 6 multiplicity 1

For an even multiplicty, the graph touches the x-axis, and for an odd multiplicty, the graph crosses the x-axis

Therefore,

x = 0 multiplicty 2, Touch

x = -6 multiplicty 1, Cross

x = 6 multiplicty 1, Cross

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1 year ago

6, 8, 11, 12, 2x – 8, 2x + 10, 35, 41, 42, 50

krok68 [10]

Answer:

Step-by-step explanation:

(2x-8+2x+10)/2 = 25

(4x+2) = 2×25

4x+2 = 50

4x = 50-2

4x = 48

x = 48/4

x = 12

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3 years ago

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