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3 years ago

Which of the following lists of ordered Pairs is a function?

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

4 0

Answer: B

Step-by-step explanation:

trust me the answer is B if the answer is not reported me

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Help with this question quickly please!!

DiKsa [7]

Answer:

The anwers is D

Step-by-step explanation:

8 0

3 years ago

Emma measured a restaurant and made a scale drawing. The scale of the drawing was 2 centimeters : 1 meter. If the actual width o

soldi70 [24.7K]

Answer:

20000 meters

Step-by-step explanation:

3 0

3 years ago

I already solved this problem. I just need help with the HINT part.

frutty [35]

$x+y=25 \\ y=25-x~~Other~number~in~terms~of~x \\ \\ x^2+y^2=313 \\ x^2+2xy+y^2=313+2xy \\ (x+y)^2=313+2x(25-x) \\ \frac{25^2-313}{2} =25x-x^2 \\ x^2-25x+156 \\ \\ \Delta =(-25)^2-4\times 1\times 156 \\ \Delta =625-624 \\ \sqrt{\Delta}=1 \\ \\ x= \frac{25 \pm 1}{2} \\ x= \left \{ {{x_1=13} \atop {x_2=12}} \right.$

The number "x" is given by:
$y= \left \{ {{y_1=25-13 \rightarrow~y_1=12} \atop {y_1=25-12 \rightarrow ~y_1=13}} \right.$

Therefore, we have:

$\boxed {S=({12,13})} \rightarrow~The~curly~braces~does~not~want~appear~here.$

8 0

3 years ago

Rewrite the equation for x, and express its value in terms of a. 3/a x - 4 = 20

My name is Ann [436]

For this case, we must clear variable "x" from the given equation, expressed in terms of "a".

We have:

3/a x-4=20

By clearing "x" we have:

Adding 4 to both sides of the equation:

3/a x = 20 + 4

Multiplying by a/3 on both sides of the equation:

x=24a/3

x=8a

So, x=8a

Answer:

x=8a

7 0

3 years ago

Ahhh hi pls help <br> f(x)=-2x^2+3

nikklg [1K]

Answer:

Step-by-step explanation:

F(x) is another name for y

If you make a table of values, you can plot the coordinates of this quadratic equation.

When "x" is 0, y is 3

7 0

3 years ago