MATHEMATICS HIGH SCHOOL

Is the following relation a function?two ovals, one labeled x and the other labeled y. The negative 2 in the x oval is pointing to the 5 in the y oval, the 0 in x is pointing to 1 and 3 in y, 5 in x pointing to 8 in y, and 7 in x pointing to 5 in y

Yes

No

Answers

Answer 1
Answer: The answer is No.
Because the 0 in x oval is pointing to BOTH 1 and 3 in y oval.
And that must not happen in order to relation be a function.
The following conditions must be satisfied for relation to be a function:
1. condition: EVERY element in first oval has to be connected to some element in second oval.
2. condition: Elements in first oval MUST NOT have more than one connection with elements in second oval.
Answer 2
Answer:

The answer is B (no)

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= (b) Use your calculator to determine the exact value of 35.23 x 3.02 Exactly Correct to 2 decimal place

Answers

Answer:

The exact value is 106.40

Step-by-step explanation:

The exact value of the given operation obtained with the calculator is:

35.23 * 3.02 = 106.3946

The result expressed in 2 decimal places is:

106.3946 = 106.40  

Therefore, the exact value is 106.40

I hope it helps you!

Light travels at a speed of 3.0 ´ 108 m/s. If it takes light from the sun 5.0 ´ 102 s to reach Earth, what is the distance between Earth and the sun?

Answers

(5.0 x 10²) x (3.0 x 10⁸) = 1.5 x 10¹¹ meters = 1.5 x 10⁸ km.

A restaurant earns $1073 on Friday and $1108 on Saturday. Write and solve an equation to find the amount xx (in dollars) the restaurant needs to earn on Sunday to average $1000 per day over the three-day period.

Answers

Money earned by restaurant on Friday=$1073

Money earned by restaurant on Saturday=$1108

Let Money earned by restaurant on Sunday=$x

Average=$1000

\text { average}=\frac  { sum of all the observation}{total number of observation}

Number of observation=3

                           ⇒  3×  1000=1073+1108+x

                            ⇒3000=     2 181+x

                              ⇒3000-2181=x

                            ⇒x=819

The restaurant needs to earn on Sunday to average $1000 per day over the three-day period=$819
1073+1108+x/3=1000

answer is $819

Solve each equation by factoring.
1) a^2- 9a + 14 = 0

Answers

it’s c [7,2] for sure! :)

What is the value of 5 in 42.05

Answers

The 5 in 42.05 is 5 hundredths 

Round each decimal to the nearest hundredth and to the nearest tenth 0.158

Answers

that will give us two new decimals:
0.158
= 0.16
= 0.2
that is the solution
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