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3 years ago

13

(this is separate)

1 answer:

leva [86]3 years ago

3 0

Answer: 2/1

Step-by-step explanation:

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Help also please explain thank you

Ne4ueva [31]

10 yards. The amount of yards is 1 third the amount of feet so you just divide 30 by 3 to get the amount of yards

5 0

3 years ago

Of 30 students, 1/3 play sports. Of those who play sports, 2/5 play soccer.

lana [24]

Answer: 10 or 12

Step-by-step explanation:

6 0

3 years ago

3 + 10.8 is:<br> rational<br> irrational<br> Idk what this is if u could please help me

ratelena [41]

Answer:

3 + 10.8 is : rational.

Step-by-step explanation:

the reason for this is because it is neither a variable, pi, or numbers like square root 2.

4 0

3 years ago

Write the expression 2 3/5 as a radical.

vitfil [10]

<span>Write the expression 2 3/5 as a radical.

</span> $2^{ \frac{3}{5}}= \sqrt[5]{2^3}$ <span>
</span>

6 0

3 years ago

Find a and b so that f(x) = x^3 + ax^2 + b will have a critical point at (2,3).

Digiron [165]

Using the critical point concept, it is found that a = -3 and b = 7.

<h3>What are the critical points of a function?</h3>

The critical points of a function are the values of x for which:

$f^{\prime}(x) = 0$

In this problem, the function is:

$f(x) = x^3 + ax^2 + b$

Hence, the derivative is:

$f^{\prime}(x) = 3x^2 + 2ax$

Then:

$f^{\prime}(x) = 0$

$3x^2 + 2ax = 0$

$x(3x + 2a) = 0$

$x = 0$

$3x + 2a = 0$

$3x = -2a$

$x = -\frac{2a}{3}$

Since the critical point is at x = 2, we have that:

$-\frac{2a}{3} = 2$

$-2a = 6$

$2a = -6$

$a = -3$

Then:

$f(x) = x^3 - 3x^2 + b$

Critical point at (2,3) means that when $x = 2, y = 3$ , then:

$3 = 2^3 - 3(2)^2 + b$

$8 - 12 + b = 3$

$b = 7$

You can learn more about the critical point concept at brainly.com/question/2256078

4 0

2 years ago