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Olenka [21]
3 years ago
14

For what value of "c" is the relation a function? {(2,8 ),(12,3),(c,4),(-1,8),(0,3)}

Mathematics
2 answers:
Murljashka [212]3 years ago
8 0

Answer:

B. 1

Step-by-step explanation:

on Edgenui ty

Keith_Richards [23]3 years ago
7 0
The answer is 1, b option i just take the test
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Number 5 is c, number 6 is 'a'
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Simplify: (45.22 – 73.91) – |65.85 – 79.15| A. -47.41 B. -41.99 C. 40.18 D. 45.45
Xelga [282]
Are you sure you wrote it right because it should be -42.99

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Today, everything at a store is on sale. The store offers a 20% discount. Write an equation for this situation in terms of y.
SpyIntel [72]

The discount price will be 0.8X dollars.

Step-by-step explanation:

Given,

Price of an item = X dollars

Discount = 20%

Amount of discount = 20% of Price of item

Amount of discount =  

Price of item after discount = Price of item - Amount of discount

Price of item after discount = X-0.2X = 0.8X dollars

The discount price will be 0.8X dollars.

Keywords: discount, subtraction

8 0
3 years ago
The perimeter of a rectangular swimming pool is 154 m. Its length is 2 m more than twice its breadth. What are the length and th
const2013 [10]

Step by step:

Perimeter = Summation of all sides = AB+BC+CD+DA = 2x+2+x+2x+2+x=(6x+4)

⇒6x+4=154

⇒6x=154−4

⇒\frac{150}{6x}

⇒25=x

The breadth is x=25

The length of the rectangular pool = (2×25+2)=50+2=52m

<em>breadth </em>is 25 and the<em> length </em>is 52

Hope it helps!

4 0
2 years ago
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A large school district in southern California asked all of its eighth-graders to measure the length of their right foot at the
Ber [7]

Answer:

The probability of the sample mean foot length less than 23 cm is 0.120

Step-by-step explanation:

* Lets explain the information in the problem

- The eighth-graders asked to measure the length of their right foot at

  the beginning of the school year, as part of a science project

- The foot length is approximately Normally distributed, with a mean of

 23.4 cm

∴ μ = 23.4 cm

- The standard deviation of 1.7

∴ σ = 1.7 cm

- 25 eighth-graders from this population are randomly selected

∴ n  = 25

- To find the probability of the sample mean foot length less than 23

∴ The sample mean x = 23, find the standard deviation σx

- The rule to find σx is σx = σ/√n

∵ σ = 1.7 and n = 25

∴ σx = 1.7/√25 = 1.7/5 = 0.34

- Now lets find the z-score using the rule z-score = (x - μ)/σx

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* The probability of the sample mean foot length less than 23 cm is 0.120

4 0
3 years ago
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