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3 years ago

Which ordered pair is a solution of the equation y=3x?

Mathematics

1 answer:

lawyer [7]3 years ago

6 0

Answer <span>D- (-10, -30)

y = 3x
-30 = 3(-10)
-30 = -30</span>

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Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Tju [1.3M]

Answer:

-10 because you do parenthesis first

4 0

3 years ago

Read 2 more answers

Which one is right ?

sergey [27]

Answer:

6/10

Step-by-step explanation:

all can be reduced to 2/5, except 6/10:

2/5

8/20=2/5 (divide out 4)

12/30=2/5 (divide out 6)

but not

6/10 = 3/5!

7 0

3 years ago

A private opinion poll is conducted for a politician to determine what proportion of the population favors adding more national

Ksju [112]

Answer:

n≅376

So sample size is 376.

Step-by-step explanation:

The formula we are going to use is:

$n=pq(\frac{z_{\alpha/2}}{E})^{2}$

where:

n is the sample size

p is the probability of favor

q is the probability of not in favor

E is the Margin of error

z is the distribution

α=1-0.98=0.02

α/2=0.01

From cumulative standard Normal Distribution

$z_{\alpha/2}=2.326$

p is taken 0.5 for least biased estimate, q=1-p=0.5

$n=0.5*0.5(\frac{2.326}{0.06})^{2}\\n=375.71$

n≅376

So sample size is 376

4 0

3 years ago

Determine whether the sequence is arithmetic or geometric.

Elanso [62]

Sequence 1 is arithmetic because it is being subtracted by 16.

Sequence 2 is geometric because it is being divided by 2.

Arithmetic is when you're adding or subtracted and geometric is when you multiplying or dividing.

5 0

3 years ago

Read 2 more answers

Using the functions s = 13.5h, which statement is true?

Archy [21]

A function is a relationship between inputs where each input is related to exactly one output.

The domain of s = 13.5h are (0, 1, 2, 3, 4).

The range of s = 13.5h are (0, 13.5, 27, 40.5, 54).

<h3>What is a function?</h3>

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

s = 13.5h

For h = 0,

s = 0

For h = 1,

s = 13.5

For h = 2,

s = 27

For h = 3,

s = 40.5

For h = 4,

s = 54

We see that,

The domain of s = 13.5h are (0, 1, 2, 3, 4).

The range of s = 13.5h are (0, 13.5, 27, 40.5, 54).

Thus,

The domain of s = 13.5h are (0, 1, 2, 3, 4).

The range of s = 13.5h are (0, 13.5, 27, 40.5, 54).

Learn more about functions here:

brainly.com/question/28533782

#SPJ1

3 0

1 year ago