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Brums [2.3K]
3 years ago
9

40 points help please

Mathematics
2 answers:
JulsSmile [24]3 years ago
8 0

Answer:

y+x is greater than or equal to -1

Step-by-step explanation:

yanalaym [24]3 years ago
8 0

Answer:

Y+X ≥ -1

Step-by-step explanation:

As you can see the line is on -1 and up and has TWO lines going both directions and they are lines because they dont have dots on the end instead they keep going

Hope this helps!

~R.C

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The sample consisted of 50 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 25 day students,
bulgar [2K]

Answer: The test statistic is t= -0.90.

Step-by-step explanation:

Since we have given that

n₁ = 50

n₂ = 25

\bar{x_1}=3.02\\\\\bar{x_2}=3.04\\\\\sigma_1=0.08\\\\\sigma_2=0.06

So, s would be

s=\sqrt{\dfrac{n_1\sigma_1^2+n_2\sigma_2^2}{n_1+n_2-2}}\\\\s=\sqrt{\dfrac{50\times 0.08^2+25\times 0.06^2}{50+25-2}}\\\\s=0.075

So, the value of test statistic would be

t=\dfrac{\bar{x_1}-\bar{x_2}}{s(\dfrac{1}{n_1}+\dfrac{1}{n_2})}\\t=\dfrac{3.02-3.04}{0.074(\dfrac{1}{50}+\dfrac{1}{25})}\\\\t=\dfrac{-0.04}{0.074(0.02+0.04)}\\\\t=\dfrac{-0.04}{0.044}\\\\t=-0.90

Hence, the test statistic is t= -0.90.

7 0
3 years ago
PLEASE HELP ME ASAP!!!! <br> Will mark brain list!!!!!! please help asap!
Goryan [66]
Answer:(2,4)


Explanation: hope this is what the question was asking I’m in 9th grade
5 0
3 years ago
In ΔMNO, the measure of ∠O=90°, the measure of ∠M=64°, and NO = 70 feet. Find the length of MN to the nearest tenth of a foot.
olga_2 [115]

Answer:

in triangle MNO

relationship between perpendicular and hypotenuse is given by sin angle

sin64°=p/h=70/x

x=70/sin64°=77.88foot

length of MN to the nearest tenth of a foot.

=78ft

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Answer:

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Step-by-step explanation:

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1/2×(6×4)÷3+2 WORK AND ANSWER
Studentka2010 [4]

Answer:

½×(6×4). ÷3+2

½×24

=12÷3. +2

4+2

=6

7 0
2 years ago
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