All categories

3 years ago

Verify your solution by substituting the values into each of the original equations. Show your work.

Mathematics

2 answers:

Andreas93 [3]3 years ago

7 0

Answer:

Concept: Linear System

You indicated that it has a solution of (2,0)
For two equations to have a solution that means that they cross directly at that point and when plugged in gives a direct answer that equal each other

Lets prove it
y=2(2)-4= 0 Hence true
y=-(2)+2= 0 Hence true
So we can say that (2,0) is a solution that satisfies both equations.

zaharov [31]3 years ago

3 0

Answer:

2(2)-4=0

-2+2=0

0=0

Step-by-step explanation:

You might be interested in

A table and 8 chairs weigh 234.68 lb together. If the table weighs 157.84 lb, what is the weight of one chair in pounds?

Trava [24]

You subtract 234.68 and 157.84 and you get 76.84lb

5 0

3 years ago

Conditional probabilities are based on some event occurring given that something else has already occurred?

alex41 [277]

The answer is true. A conditional probability is a measure of the probability of an event given that (by assumption, presumption, assertion or evidence) another event has occurred. If the event of interest is A and the event B is known or assumed to have occurred, "the conditional probability of A given B", or "the probability of A in the condition B", is usually written as P (A|B). The conditional probability of A given B is well-defined as the quotient of the probability of the joint of events A and B, and the probability of B.

8 0

4 years ago

A set of twins, Andrea and Courtney, are initially 10 years old. While Courtney remains on Earth, Andrea rides on a spaceship th

SVETLANKA909090 [29]

The initial age of 10 years and the spaceship speed of 0.60•c, gives the Andrea's age at the end of the trip as 18 years.

<h3>How can Andrea's new age be calculated?</h3>

The time dilation using the Lorentz transformation formula is presented as follows;

$t' = \frac{t}{ \sqrt{1 - \frac{ {v}^{2} }{ {c}^{2} } } }$

From the question, we have;

The spaceship's speed, <em>v</em> = 0.6•c

∆t = Rest frame, Courtney's time, change = 10 years

Therefore;

$\delta t' =\delta t \times \sqrt{1 - \frac{ {(0.6 \cdot c)}^{2} }{ {c}^{2} } } = 8$

The time that elapses as measured by Andrea = 8 years

Andrea's age, <em>A</em>, at the end of the trip is therefore;

A = 10 years + 8 years = 18 years

Learn more about the Lorentz transformation formula here:

brainly.com/question/15544452

#SPJ1

3 0

2 years ago

If the sample variance for a frequency distribution consisting of hourly wages was computed to be 10, what is the sample standar

skad [1K]

The sample standard deviation is (B) $3.16.

<h3>What is the sample standard deviation?</h3>

The sample standard deviation is defined as the root-mean-square of the differences between observations and the sample mean: A significant deviation is defined as two or more standard deviations from the mean.
The lowercase Greek letter (sigma) for the population standard deviation or the Latin letter s for the sample standard deviation is most commonly used in mathematical texts and equations to represent standard deviation.
For example, if the sample variance for a frequency distribution of hourly wages is 10 and the sample standard deviation is $3.16.

Therefore, the sample standard deviation is (B) $3.16.

Know more about sample standard deviation here:

brainly.com/question/475676

#SPJ4

The complete question is given below:
If the sample variance for a frequency distribution consisting of hourly wages was computed to be 10, what is the sample standard deviation?

A. $4.67

B. $3.16

C. $1.96

D. $10.00

7 0

2 years ago

What is the equation of a circle with center (-7,4) and radius 8?

enot [183]

The answer to this question is
B. (x+7)²+(y-4)²=64

I hope this helps!!!!!!!

7 0

3 years ago

Read 2 more answers