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wlad13 [49]
3 years ago
11

Two lines, A and B, are represented by the following equations:

Mathematics
2 answers:
ch4aika [34]3 years ago
8 0
Line A: 2x+2y=8     ⇒2y=-2x+8  ⇒ y=-x+4
Line B: x+y=3          ⇒y=-x+3

Therefore: y=y then:
-x+4=-x+3
-x+x=3-4
0≠-1    ⇒There is no solution because the lines are parallels

Answer: There is no solution


Marrrta [24]3 years ago
3 0

Answer:

this is not an answer but you get points for answering it, that's the only reason he/she answered it lol

Step-by-step explanation:

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Why are different intervals used when restricting the domains of the sine and cosine functions in the process of defining their
umka21 [38]

Answer:

See below

Step-by-step explanation:

The interval must be chosen so that the function is one-to-one, and the sine and cosine functions are not one-to-one on the same intervals.

3 0
2 years ago
The average cost of tuition, room and board at small private liberal arts colleges is reported to be $8,500 per term, but a fina
Vlada [557]

Answer:

The test statistic for this test is 3.82.

Step-by-step explanation:

The null hypothesis is:

H_{0} = 8500

The alternate hypotesis is:

H_{1} > 8500

Our test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation of the population and n is the size of the sample.

In this question:

X = 8745, \mu = 8500, \sigma = 1200, n = 350

So

t = \frac{8745 - 8500}{\frac{1200}{\sqrt{350}}} = 3.82

The test statistic for this test is 3.82.

5 0
4 years ago
Can someone please give me the answers
Angelina_Jolie [31]

Answer:

1) 3

2)9

3)18

4)18k

5)18 and k

6)k/3

7)k

8)3

9)9 + k/3

10) 18k - 9

3 0
3 years ago
Evaluate y5 + x(-7)<br> When x = 2, y = -5
Ymorist [56]

Answer:

45

Step-by-step explanation:

OK, first we turn the variables into into the actual values:

The equation will look like this:

(2)5 + (-5)(-7)

Now its easier to solve!  Lets solve (2)5!

2 * 5 = 10

The equation looks like:

10 + (-5)(-7)  

We will also solve (-5)(-7). Remember that a negative number times a negative number is positive!

-5 * -7 = 35

Lets finish the rest:

10 + 35 = 45.          

Hope this is correct and have a nice day!      

3 0
3 years ago
Some one help not sure! i’ll mark brainlest
Anna [14]

Answer:

Ya, Its B.

Step-by-step explanation:

You divide the centimeter value you buy a 100 to get the meter value

5 0
3 years ago
Read 2 more answers
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