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Art [367]
3 years ago
7

Please tell the answer for the brainliest and please explain

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
3 0
19. C. 10,12 (D is eliminated because 15 is greater than 12, greatest common factor of the others was not 2)

20. C. 42 (The largest integer that can divide into both)
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What is the domain of the function f(x)= ln(x^2-4)?<br> Please show your work.
snow_lady [41]
F(x) = ㏑(x² - 4)

Domain: {-2 ≤ x ≤ 2}, or [-2, 2]

6 0
3 years ago
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What is the correct ratio of each rational root of the polynomial Function
zimovet [89]

Answer:

factor of 6 and 5

Step-by-step explanation:

3 0
3 years ago
jonah paid $25 for dues to a cub last year. This year he paid $35 for dues. By what percent did his dues increase
4vir4ik [10]

Answer:

40 % increase

Step-by-step explanation:

percent increase = (new - original)/ original

percent increase = (35-25)/25

                            = 10/25

                            =.4

                   multiply by 100

40 percent

4 0
3 years ago
If two sweaters and four shirts cost $150, and four sweaters and three shirts cost $200, find the price of each shirt and each s
STALIN [3.7K]

Answer:

shirt = $20

sweater = $35

Step-by-step explanation:

This question would be solved using simultaneous equation

Let the price of sweater be represented by a

Let the price of shirt be represented by b

The following equations can be derived from the question

2a + 4b = 150   equation 1

4a + 3b = 200   equation 2

Multiply equation 1 by 2

4a + 8b = 300    equation 3

Subtract equation 2 from 3

5b = 100

divide both sides of the equation by 5

b = 20

substitute for b in equation 1

2a + 4(20) = 150

2a + 80 = 150

collect like terms

2a = 150 - 80

2a = 70

divide both sides by 2

a = 35

Price of sweater = $35

Price of shirt = $20

4 0
2 years ago
Read 2 more answers
Taylor can clean pools at a constant rate of 2/5 pools per hour. What is the ratio of pools to hours? HELPP PLEASE
Hatshy [7]

Hi! I'm happy to help!

To solve for this, we need to understand what a ratio is. A ratio is a comparison between two things. (in numbers) In this case,  between pools and hours:

pools:hours

A fraction is also a ratio, in this case we have 2/5, which also compares pools to hours, so we can turn this into a more proper ratio form:

2 pools: 5 hours

2:5

<u>So, our ratio of pools to hours is 2:5.</u>

I hope this was helpful, keep learning! :D

7 0
2 years ago
Read 2 more answers
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