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2 years ago

Heyy some help me with this question

Mathematics

1 answer:

lara31 [8.8K]2 years ago

3 0

Answer:

1400 students

Step-by-step explanation:

J=(300×5)-100

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Write a relationship for a function whose k(x) values are 5 more than four times the principal square root of x .

bearhunter [10]

Answer:

$k(x)=5+4\sqrt{x}$

Step-by-step explanation:

Write a function whose k(x) values are 5 more than four times the principal square root of x.

So,

the principal square root of x $=\sqrt{x};$

four times the principal square root of x $=4\sqrt{x};$

5 more than four times the principal square root of x $=5+4\sqrt{x};$

Thus,

$k(x)=5+4\sqrt{x}$

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3 years ago

Is the time it takes to fly from city upper a to city upper btime it takes to fly from city a to city b a discrete random varia

Rzqust [24]

Continuous random variable

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3 years ago

Find the inverse of f(x)=(x−5)/(−4x−2)

uysha [10]

Answer:

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

Step-by-step explanation:

The given rational function is

$f(x) = \frac{x - 5}{ - 4x - 2}$

Let

$y = \frac{x - 5}{ - 4x - 2}$

Interchange x and y

$x= \frac{y- 5}{ - 4y - 2}$

Cross multiply

$x( - 4y - 2)= y- 5$

Expand

$- 4xy - 2x= y- 5 \\ - 4xy - y= 2x - 5 \\y( - 4x - 1)= 2x - 5$

Solve for y;

$y= \frac{ 2x - 5}{ - 4x - 1}$

$y= \frac{ 5 - 2x }{ 4x + 1}$

Therefore

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

7 0

3 years ago

Write this number using digits:

Setler [38]

Answer: 454,000,004,542

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2 years ago

Read 2 more answers

To solve -3 = -19 + d/5, what steps would you use?

Phantasy [73]

Answer:

1)Add 19

2)Multiply by 5

Step-by-step explanation:

$-3=-19+\frac{d}{5}$

Adding 19 to both sides.

$-3+19=-19+19+\frac{d}{5}\\\\16=\frac{d}{5}$

Multiplying 5 to both sides.

$16\times5=\frac{d}{5}\times 5\\80=d\\\\$

∴ $d=80$

7 0

3 years ago