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Diano4ka-milaya [45]
3 years ago
5

How to find where the equations meet.

Mathematics
1 answer:
zzz [600]3 years ago
3 0
The first sentence → x - 2y = -1
the second one → 3x - 2y = -3

multiply the first one by -1
you can get → -x + 2y = 1

plus two sentences together
you can get → 2x = -2

so you are able to know that x = -1
and y = 0
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Is (-5,-5) a solution of y> - 2x + 4?
valina [46]

Answer:

No

Step-by-step explanation:

Let's check by substituting -5 for y and -5 for x:

y > -2x + 4

-5 > -2 * (-5) + 4

-5 > 10 + 4

-5 > 14

However, we know that -5 is definitely not greater than 4, so we know that (-5, -5) is NOT a solution to the given inequality.

Hope this helps!

6 0
4 years ago
Read 2 more answers
Look at Figure 2. What is the measure of x ? ( Hint: you may need to use triangle ACE to help you;) notice the right angle??? NE
kow [346]

Answer:

60°

Step-by-step explanation:

Let angle BAE = angle ACD = x

                                BCD  = AEC = 60°

EAC + FCA + ECF + AEC = EAC + x + 60° + 60° = 180°

                                 EAC = 60° - x

                                 BAC = EAC  + BAE = 60° - x + x = 60°

5 0
3 years ago
Read 2 more answers
What is the standard deviation of a sampling distribution called?
GarryVolchara [31]

Answer: Standard error.

Step-by-step explanation:

If the population is normally distributed , then the standard deviation of a sampling distribution of the sample mean [tex]\overline{x}[/tex] is known as standard error which depends on population standard deviation (\sigma) and the sample size (n).

\sigma_x=\dfrac{\sigma}{\sqrt{n}}

It measure the variability in the sample statistics that happens by chance.

Thus, the standard deviation of a sampling distribution is called the <u>standard error</u>.

8 0
3 years ago
4,7,3,0,5,1 in the smallest number with 5 in the thousands place and an odd number
igor_vitrenko [27]

Answer:

we list the number from smallest to large without for conditions like e.g 5 in hundred place and 7 in one place. therefore, 103547

8 0
2 years ago
Please help. I’ll mark you as brainliest if correct!
EastWind [94]
13 bikes
You would do 65 divided by 5 because there are 5 times as many new bikes compared to used ones
3 0
3 years ago
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