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3 years ago

A line is represented by the equation ax+by=6 a.) when is the line parallel to the x-axis?

1 answer:

3 0

Hello :
the line parallel to the x-axis if : ( a = 0 and b <span>≠ 0)
for exemple : a = 0 and b= 3 the line has the equation ; y = 2</span>

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Question 15 of 40

PilotLPTM [1.2K]

Answer:

Option C: n = 32; p^ = 0.4

Step-by-step explanation:

The normal curve can be used in this case if; np ≥ 10 or n(1 - p) ≥ 10

A) For n = 28 and p = 0.3;

np = 28 × 0.3 = 8.4 < 10

Thus, it can't be used.

B) For n = 28 and p = 0.9;

np = 28 × 0.9 = 25.2 > 10 Ok

n(1 - p) = 28(1 - 0.9) = 2.8 Not Ok

Thus, it can't be used

C) For n = 32 and p = 0.4

np = 32 × 0.4 = 12.8 > 10 Ok

n(1 - p) = 32(1 - 0.4) = 19.2 > 10 Ok

Thus, it can be used

D) For n = 32 and p = 0.2

np = 32 × 0.2 = 6.4 < 10 Not Ok

Thus it can't be used.

4 0

3 years ago

Please help 2 sorry for last one it didnt go through

Semmy [17]

Answer:

No, it's not.

8 0

2 years ago

What is the circumference of the circle?

pashok25 [27]

Sorry, i don't understand

7 0

3 years ago

Left and Right end behavior of f(x)=2e^x+3 written in infinity notation.

Verizon [17]

Answer:

I think you wanna know exactly it's graph

See f(x)= 2 e^x +3

e^x is exponential function which is always positive and so lies above x axis

Multiply by 2 make it's incrementation in slope and now it will pass through (0,2)

Also adding 3 shifts graph 3 unit above y axis

So Now it will pass through (0, 2+3) that is B) (0,5)

Now At x approaches to minus infinity it will shift 3 unit up from 0 to 3 So it will pass through (-infinity,3)

Now see the pic

8 0

3 years ago

If y varies inversely as x<br> and x = 4 when y = 15, find y when x=6

lord [1]

Answer:

y = 10

Step-by-step explanation:

Given y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition x = 4 when y = 15 , then

15 = $\frac{k}{4}$ ( multiply both sides by 4 )

60 = k

y = $\frac{60}{x}$ ← equation of variation

When x = 6 , then

y = $\frac{60}{6}$ = 10

7 0

3 years ago