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Lunna [17]
2 years ago
5

Pick one answer choice. Please help! I want to make sure i’m doing it right for practice test!

Mathematics
1 answer:
Phantasy [73]2 years ago
3 0

The product of the two functions is:

(f \times g)(x) = 10x

So the correct option is A.

<h3>Which one is the equivalent expression?</h3>

Remember that the square root has the property.

\sqrt{a}*\sqrt{b} = \sqrt{a*b}

Here we have:

f(x) = \sqrt{2x} \\\\g(x) = \sqrt{50x}

Then the product is:

(f \times g)(x) = 10x = f(x)*g(x) = \sqrt{2x}*\sqrt{50x} = \sqrt{(2x)*(50x)} \\\\(f \times g)(x) = 10x = \sqrt{100x^2}  = \sqrt{100}*\sqrt{x^2} = 10*x

the correct option is A.

If you want to learn about roots:

brainly.com/question/24487155

#SPJ1

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A drama class has a total of 39 students. The number of males is 9 more than the number of females. How many males and how many
Artist 52 [7]

Answer:

Step-by-step explanation:M+F=39

M+F=39

F=M-9

Substitute

M + M - 9 = 39

2M = 48

M=48/2

M=24

24+F=39

F=39-24=15

F=15, M=24

3 0
3 years ago
Read 2 more answers
Kali left the White House and traveled toward the lake. Ndiba left one hour later traveling 15 mph faster in an effort to catch
CaHeK987 [17]

Answer:

The speed of Kali is 30 mph.

Step-by-step explanation:

Let, the speed of Kali be "x", then speed of Ndiba will be:

Speed of Ndiba = x + 15 mph

If, the time for travel for Ndiba is 2 hrs, when he catches Kali, and he left 1 hour later than Kali, then then time traveled by Kali at that instant will be 2+1 = 3hrs.

At the point of meeting both will have covered same distance.

Distance Covered by Kali = Distance Covered by Ndiba

(Speed of Kali)(Time traveled by Kali) = (Speed of Ndiba)(Time traveled by Ndiba)

(x)(3) = (x +15)(2)

3x = 2x +30

<u>x = 30 mph</u>

The correct answer is, actually 30 mph, by the solution shown above.

4 0
3 years ago
Solve the rational inequality 2(x-4)/x&lt;-4?​
IgorLugansk [536]

Answer:

It’s not the answer but it’s a guide and something to be mindful of...

Step-by-step explanation:

You have to determine the zeros of the rational inequality by setting each factor equal to zero then solving for x. Use the zeros as critical numbers to divide the number line into distinct intervals.

Hope this helps... bless your heart.

7 0
3 years ago
Identify the values of m and b of the linear function y = mx + b, graphed below. ​
Varvara68 [4.7K]
<h2>Finding the slope and y-intercept of a line given the graph</h2><h3>Answer:</h3>

b = 4

m = -\frac{1}{3}

<h3>Step-by-step explanation:</h3>

An equation of a line written in its Slope-intercept Form, y = mx +b, has b as its y-intercept and m as its slope.

b or the y-intercept is the y-coordinate when x = 0. On the given line, we can see that when x = 0, y = 4. It's y-intercept is the point (0,4) so b = 4.

The slope, m, of the line can be calculated by \frac{y_2 -y_1}{x_2 -x_1}\\ where x_n and y_n is the xy-coordinates of any point n on the line. In the given line, we can see that (5,3) is on the line so this can be point 1. (0,4) is also on the line (yes, you can also use the y-intercept in calculating the slope of the line) so this can be our point 2.

m = \frac{4 -3}{0 -3} \\ m = \frac{1}{-3} \\ m = -\frac{1}{3}

The y-intercept is b = 4 and the slope is m = -\frac{1}{3}

5 0
3 years ago
Admission to the zoo costs $15 per person. Which graph correctly represents the total cost for a group to visit the zoo? Total C
vampirchik [111]

Admission to the zoo costs $15 per person.

The graph y = 15x correctly represents the total cost for a group to visit the zoo.

Given;

Admission to the zoo costs per person = $15

Let:

The total number of people visiting the zoo = x

The total cost for a group to visit the zoo = y

So,  y ∝ x

y = 15x

Therefore, the graph y = 15x correctly represents the total cost for a group to visit the zoo.

3 0
2 years ago
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