All categories

3 years ago

Determine whether ( – 4,3) is a solution of 2x – 2y = 0.

Mathematics

1 answer:

NemiM [27]3 years ago

5 0

Answer:

(-4,3) is NOT a solution of 2x-2y=0.

Step-by-step explanation:

First you substitute -4 and 3 for x and y in your equation.

2(-4) - 2(3) = 0

Then solve the equation

-8 - 6 = 0

-14 = 0

Since -14 cannot equal 0, (-4,3) is NOT a solution.

You might be interested in

Find the area and the circumference of the circle. Round your answers to the nearest hundredth.

Alik [6]

Answer:

$area = 200.96 \: {units}^{2} \\ circumfrence = 50.24 \: units$

Step-by-step explanation:

The formula to find the area and circumference of a circle is:

$area = \pi {r}^{2} \\ circumfrence = 2\pi \: r$

*note that pi is 3.14* Therefore the area is:

$formula = \pi {r}^{2} \\ 3.14 \times {8}^{2} = \\ 3.14 \times 64 = 200.96$

Therefore the circumference is:

$formula = \: 2\pi \: r \\ (2)(3.14)(8) = \\ 3.14 \times 16 = 50.24$

3 0

2 years ago

Please help !!!!!! Thank you

Lera25 [3.4K]

Answer:

Result: 23

Step-by-step explanation:

Evaluating Algebraic Expressions

Given an expression where variables (letters) are included, evaluate the expression at specific values of the variables means to substitute the values into the expression, operate, and give the final result.

The expression provided in the question is:

4m + 3

Evaluate at m=5

Substitute m for 5 recalling 4m really means 4*m, a product:

4*5 + 3 = 20 + 3 =23

3 0

3 years ago

Read 2 more answers

Bruce drew a scale drawing of a restaurant. The scale he used was 1 millimeter 10 meters The restaurant's kitchen is 3 millimete

Burka [1]

Answer:

answer=30

Step-by-step explanation:

by taking the length as x

1 millimetre = 10 metres

3 millimetres = x

10×3= 30 metres

HOPE THIS HELPS

8 0

2 years ago

The variance of the scores on a skill evaluation test is 143,641 with a mean of 1517 points. If 343 tests are sampled, what is t

Vlad1618 [11]

Answer:

The probability that the mean of the sample would differ from the population mean by less than 36 points=0.9216

Step-by-step explanation:

We are given that

The variance of the scores on a skill evaluation test=143,641

Mean=1517 points

n=343

We have to find the probability that the mean of the sample would differ from the population mean by less than 36 points.

Standard deviation, $\sigma=\sqrt{143641}$

$P(|x-\mu|$

$=P(|Z|$

$=0.9216$

Hence, the probability that the mean of the sample would differ from the population mean by less than 36 points=0.9216

5 0

3 years ago

Six times a number is decreased by 5, the result is 19.what is the number?

marishachu [46]

Simple...

6x-5=19

x= 19+5
= 24
x= 24/6
= 4

Thus, your answer is 4.

Hope This Helps!

6 0

4 years ago