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3 years ago

URGENT!!! PLS HELP!!!!!!!!

Mathematics

1 answer:

BARSIC [14]3 years ago

6 0

1. 0 and 2 2. 2 and 7 3. 3 and 0 and -3

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Use CALCULUS to find coordinates of the turning point on C.

antiseptic1488 [7]

Oi

Just calculating the differential. Step by step:

$y=12 \sqrt{x} -x \frac{3}{2}-10 \\ \\ y=12x^{ \frac{1}{2} } -x \frac{3}{2}-10 \ \ \ \boxed{transform \ \sqrt{x} =x^{ \frac{1}{2} }} \\ \\ Differentiating \\ \\ y'=12. \frac{1}{2}.x^{ \frac{1}{2}-1 } -1.x^{1-1}. \frac{3}{2}-0 \\ \\ y'=6.x^{ -\frac{1}{2} } -x^{0}. \frac{3}{2} \\ \\ y'=6. \frac{1}{x^{ \frac{1}{2} }} -1. \frac{3}{2} \\ \\ \boxed{y'=\frac{6}{ \sqrt{x} } -\frac{3}{2}}$

If you want to know where the tangent has no slope:

$\frac{6}{ \sqrt{x} } - \frac{3}{2} =0 \\ \\ \frac{6}{ \sqrt{x} } = \frac{3}{2} \\ \\ 3 \sqrt{x} =12 \\ \\ \sqrt{x} = \frac{12}{3} \\ \\ \sqrt{x} =4 \\ \\ (\sqrt{x})^2 =4^2 \\ \\ x=16$

3 0

3 years ago

At Ree Ski Center, the most people will pay for a neck warmer is $10. The manager of Ree Ski Center knows he needs a 30% markup

taurus [48]

Let $x$ be the most the manager can pay the suppliers.

Then, we know from the information given in the question that the manager needs a 30% markup based on cost.

Therefore, the guiding equation will be:

$x+\frac{30}{100}x\leq 10$

because $10 is the most people will pay for a neck warmer.

Thus, the above equation will become:

$x+0.3x\leq 10$

$1.3x\leq 10$

$x\leq \frac{10}{1.3}=7.69$

$\therefore x\leq 7.69$

Thus, the most a manager can pay the suppliers for neck warmers and still keep the selling price at $10 is $7.69

4 0

4 years ago

1. Set G is the set of positive integers divisible by 4 and set F is the set of perfect squares. List thr first 5 elements of se

Readme [11.4K]

Answer:

Step-by-step explanation:

= 200 +142 -28

=342-28

=314

= 1000

3 0

3 years ago

1. reduce 15/40

IrinaVladis [17]

Answer:

1. 3/8

2.2/3

That’s the answer. I’m positive!!

7 0

4 years ago

What does 496.3 and 98 round using compatible numbers

Aleksandr [31]

Compatible numbers are numbers that look nice or friendly with each other when we do mental calculations to estimate a product, but especially using division .

5 might be your answer , unsure .

4 0

3 years ago

Read 2 more answers