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1 year ago

Doug's teacher told him that the standardized score (z-score) for his mathematics

Mathematics

1 answer:

BigorU [14]1 year ago

8 0

Answer:

Doug’s test score is 1.20 standard deviations above the average test score of the students in the course.

I just took the test and got it right :)

Step-by-step explanation:

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Quiz: Writing an Equation given Attributes (focus, directrix, vertex, or p-value)

mash [69]

E plus c equal G then smoke that zara

5 0

2 years ago

3x−12≥15 2x−5≤9 5x+8≤53 3x−5≥16

zalisa [80]

Answer:

Step-by-step explanation:

A) 3x−12≥15

3x ≥ 15 + 12

3x ≥ 27

or x≥ 9

B) 2x−5≤9

2x ≤ 9 +5

2x ≤ 14

or x ≤ 7

C) 5x+8≤53

5x ≤ 53 -8

5x ≤ 45

or x ≤ 9

D) 3x−5≥16

3x ≥ 16 + 5

3x ≥ 21

or x ≥ 7

Have a good day!

8 0

2 years ago

Find the length to the nearest centimeter of the diagonal of a square 30 cm. on a side

tiny-mole [99]

Answer:

42 cm.

Step-by-step explanation:

Please find the attachment.

Let x be the length of diagonal of the square.

We have been given that length of each side of a square is 30 cm. We are asked to find the length of the diagonal of square to the nearest centimeter.

We can see from our diagram that triangle AC is the diagonal of our square.

Since all the interior angles of a square are right angles or equal to 90 degrees, so we will use Pythagoras theorem to find the length of diagonal.

$AC^2=AD^2+DC^2$

Upon substituting our given values in above formula we will get,

$x^2=(30\text{ cm})^2+(30\text{ cm})^2$

$x^2=900\text{ cm}^2+900\text{ cm}^2$

$x^2=1800\text{ cm}^2$

Let us take square root of both sides of our equation.

$x=\sqrt{1800\text{ cm}^2}$

$x=42.4264\text{ cm}\approx 42\text{ cm}$

Therefore, the length of diagonal of our given square is 42 cm.

8 0

2 years ago

FREE BRANLIES IF ANSWER WITH EQUATIONS!! URGENT

4vir4ik [10]

Answer:

7) second answer

8) first answer

4 0

2 years ago

Read 2 more answers

Nine times the sum of a number and 26 is at most -25

kobusy [5.1K]

Answer:

x ≤ -259/9

Step-by-step explanation:

Change into a number equation 9(x + 26) ≤ -25

3 0

2 years ago