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ryzh [129]
2 years ago
6

Please help me( '人' )​

Mathematics
1 answer:
love history [14]2 years ago
4 0

Answer:

S(1,2)

Step-by-step explanation:

The value that is being altered is the y value if you go from Q to T and then T to S. The x value = 1 and remains the same for point S.

To go from Q to T, you go from 8 to 5 on the y value. Remember x remains the same. That's three units (8 - 5 = 3)

To go from T to S must be 3 units as well, since the small diagonal is bisected. 5 - 3 = 2 is the answer.

So point S is noted as S(1,2)

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What is -12 = -3y? Can you pls help me
Rashid [163]

Answer:

y = 4

Step-by-step explanation:

-12= -3y

Divide both sides of the equation by

the same term

\frac{ - 12}{ - 3}  = \frac{  - 3y}{ - 3}

Simplify

Divide the numbers

Cancel terms that are in both the

merator and denominator

Move the variable to the left

y = 4

3 0
2 years ago
A study was designed to investigate the effects of two variables​(1) a​ student's level of mathematical anxiety and​ (2) teachin
dimaraw [331]

Using Chebyshev's Theorem, considering a standard deviation of 40, we have that at least 75% of the students scored between 360 and 520.

<h3>What does Chebyshev’s Theorem state?</h3>

When we have no information about the population distribution, Chebyshev's Theorem is used. It states that:

  • At least 75% of the measures are within 2 standard deviations of the mean.
  • At least 89% of the measures are within 3 standard deviations of the mean.
  • An in general terms, the percentage of measures within k standard deviations of the mean is given by 100(1 - \frac{1}{k^{2}}).

In this problem, considering a standard deviation of 40, we have that:

440 - 2 x 40 = 360.

440 + 2 x 30 = 520.

Within 2 standard deviations of the mean, no information about the distribution, hence, at least 75% of the students scored between 360 and 520.

More can be learned about Chebyshev's Theorem at brainly.com/question/25303620

7 0
2 years ago
the school fun fair made 1,768 on games and 978 on food sales. how much money did the fun fair make on games and food.
Roman55 [17]
The school made 2746 dollars. 
4 0
3 years ago
Read 2 more answers
Tính: <br> (1/27)^2016*27^2015
Alik [6]

Answer:

1/27

Step-by-step explanation:

(1/27)^2016*27^2015 =

27^-2016 * 27^2015 =

27^(-2016+2015) =

27^-1 =

1/27

6 0
2 years ago
Write an equation for a line in slope-intercept form that is parallel to y=−2x+5 and passing through the point (3,−10)
STALIN [3.7K]

Answer: y=-2x-4

Step-by-step explanation:

y=-2x+b

-10=-2(3)+b

-10=-6+b

-4=b

5 0
3 years ago
Read 2 more answers
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