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egoroff_w [7]
3 years ago
5

A system of equations is graphed on the coordinate plane. y=−2x−3y=−2x+2 Graphs of the equations y equals negative two x plus tw

o, and y equals negative two x minus three. Select the number of solutions for the system of equations from the drop-down menu.
Mathematics
2 answers:
san4es73 [151]3 years ago
5 0

Answer:

no solutions or 0 solutions

Step-by-step explanation:

bc im smart lol

AleksandrR [38]3 years ago
3 0
In y = mx + b form, the slope will be in the m position and the y int will be in the b position

y = -2x + 2....slope = -2 and y int = 2
y = -2x - 3.....slope = -2 and y int = -3

when u have 2 lines that both have the same slope but different y intercepts, u have parallel lines with no solution because ur lines never intersect.

so ur answer is : no solutions or 0 solutions


You might be interested in
Find the solutions to x2 = 20.
Gemiola [76]

Answer:

B.

Step-by-step explanation:

x^2=20; \ => \ \left[\begin{array}{ccc}x=\sqrt{20} \\x=-\sqrt{20} \end{array} \ => \ \left[\begin{array}{ccc}x=2\sqrt{5} \\x=-2 \sqrt{5} \end{array}

3 0
2 years ago
What is the surface area of a tennis ball with a diameter of 6.7?? With full work please.
Sedbober [7]
So the formula you have to do is A= (pie)(radius)(squared)


divide 6.7 by 2 to find the radius which is 3.35


now do 3.35 * 3.35 ( we are squaring it) which = 11.225

now 11.225 times PIE is 35.264377537


so the answer is 35.264377537

hope that helped!
6 0
2 years ago
20 POINTS!!!!!!!!
Irina18 [472]
2x2x1= 4 possible ways
GBP & BPP & BB
GBP & RPP & BB
YBP & BPP & BB
YBP & RPP & BB
GBP is green backpack, YBP is yellow backpack, BPP is blue pencil pouch, RPP is red pencil point, BB is black binder.
6 0
2 years ago
A researcher wants to study sports-watching behavior of young men. In a random sample of 18 young adult men 20-30 years old, eac
prohojiy [21]

Answer:

Null hypothesis: \mu \leq 50

Alternative hypothesis: \mu >50

A type of error I for this case would be reject the null hypothesis that the population proportion is lower or equal than 50 when actually is true.

So then the best option for this case is:

b. The researcher concludes that the mean amount of television watched by young men is greater than 50 (reject the null hypothesis), when the mean is really less than or equal to 50.

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Type I error, also known as a “false positive” is the error of rejecting a null  hypothesis when it is actually true. Can be interpreted as the error of no reject an  alternative hypothesis when the results can be  attributed not to the reality.  

Type II error, also known as a "false negative" is the error of not rejecting a null  hypothesis when the alternative hypothesis is the true. Can be interpreted as the error of failing to accept an alternative hypothesis when we don't have enough statistical power.  

Solution to the problem

On this case we want to test if the mean amount of television watched daily by young men is greater than 50 minutes), so the system of hypothesis would be:

Null hypothesis:  \mu \leq 50

Alternative hypothesis: \mu >50

A type of error I for this case would be reject the null hypothesis that the population proportion is lower or equal than 50 when actually is true.

So then the best option for this case is:

b. The researcher concludes that the mean amount of television watched by young men is greater than 50 (reject the null hypothesis), when the mean is really less than or equal to 50.

5 0
3 years ago
Write the equation 3x-3y=-12 in slope intercept form then graph the line
Eva8 [605]
Do rise/run and u should have your answer
     
7 0
3 years ago
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