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wlad13 [49]
3 years ago
5

3) Is the following a function? (-4, 10) (10,-6) (8, 10) (2,-9) (0,7)

Mathematics
2 answers:
alexira [117]3 years ago
8 0

Answer:

No

Step-by-step explanation:

No, this is not a function beacuse - 4 and 8 both have the same image 10 and a function is a relation in which every element has one image but this condition doesn't satisfy the definition. So, it is not a function.

alisha [4.7K]3 years ago
7 0

Answer:

Yes

Step-by-step explanation:

A function is when there is no two of the same domain.

The Domain is the first coordinate which is x.

Hope This Helps :)

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25 percent of 510,000
stellarik [79]

Answer:

127 500

Step-by-step explanation:

Let x be the missing value.

● 510 000 => 100

● x => 25

x = (25*51000)÷100 = 127 500

6 0
4 years ago
Read 2 more answers
6. What is the value of x?<br> A. 10<br> B. 8<br> C. 4<br> D. 6
AlladinOne [14]

Answer:

(4)2=x-2

8=x-2

x=8+2

x=10

6 0
3 years ago
How many 4-digits number can be formed out of 0,1,2,3,5,7 and 8. If:
Bad White [126]

Answer:

Below in bold.

Step-by-step explanation:

No repetition.

There are a total of 7 numbers.

For the number to be even it must end in 0,  2 or 8.

The other 3 numbers will be the number of permutations of 3 from  the 6 other numbers.

Number of 4 digit numbers ending in 0

= 6P3 = 6! / 6-3!

= 120.

Now the number could also end in 2 or 8,

so there are 3*120 = 360 4-digit even numbers (no repetition).

With repetition.

There are 3 * 7^3 = 1029  with repetition.

5 0
3 years ago
Evaluate the equation 4K-10/k=8
solong [7]

Answer:

k = 1 + sqrt(7/2) or k = 1 - sqrt(7/2)

Step-by-step explanation:

Solve for k over the real numbers:

4 k - 10/k = 8

Bring 4 k - 10/k together using the common denominator k:

(2 (2 k^2 - 5))/k = 8

Multiply both sides by k:

2 (2 k^2 - 5) = 8 k

Expand out terms of the left hand side:

4 k^2 - 10 = 8 k

Subtract 8 k from both sides:

4 k^2 - 8 k - 10 = 0

Divide both sides by 4:

k^2 - 2 k - 5/2 = 0

Add 5/2 to both sides:

k^2 - 2 k = 5/2

Add 1 to both sides:

k^2 - 2 k + 1 = 7/2

Write the left hand side as a square:

(k - 1)^2 = 7/2

Take the square root of both sides:

k - 1 = sqrt(7/2) or k - 1 = -sqrt(7/2)

Add 1 to both sides:

k = 1 + sqrt(7/2) or k - 1 = -sqrt(7/2)

Add 1 to both sides:

Answer: k = 1 + sqrt(7/2) or k = 1 - sqrt(7/2)

4 0
3 years ago
A large poll showed that 42%, percent of adults approved of their nation's prime minister. Margot wants to test if it is now low
harina [27]

According to the situation described, the appropriate set of hypotheses for her significance test is given by:

H_0: p = 0.42.

H_1: p < 0.42.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the proportion is still of 42%, that is:

H_0: p = 0.42.

At the alternative hypothesis, it is tested if the proportion is now lower, that is:

H_1: p < 0.42.

Hence, the the appropriate set of hypotheses for her significance test is given by:

H_0: p = 0.42.

H_1: p < 0.42.

More can be learned about an hypothesis test at brainly.com/question/26454209

5 0
2 years ago
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