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Bezzdna [24]
4 years ago
10

Again stuck why because our teacher got fired so we are stuck with substitute teacher

Mathematics
1 answer:
Anna11 [10]4 years ago
4 0

Answer:

27 > b

Step-by-step explanation:

7 > -20 + b

7 + 20 > -20 + 20 + b

27 > b

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Help me please (no links plz)
Irina18 [472]

9514 1404 393

Answer:

  • vertex: S
  • sides: ST and SR

Step-by-step explanation:

The vertex is the point the rays have in common. The side rays are named by naming the vertex first, then a point on the ray.

The rays come together at point S. The name of the vertex point is S.

The sides of the angle are rays ST and SR.

4 0
3 years ago
I need someone to answer this immediately please. ... The area of a piece of land is 50cm square. Fi d the value of x, if the le
iren [92.7K]

Answer:

x=8

Step-by-step explanation:

Area is equal to

A = l * w

50 = ( x+2) ( x-3)

FOIL

50 = x^2 -3x+2x -6

Combine like terms

50 = x^2 -x -6

Subtract 50 from each side

0 = x^2 -x -56

Factor

What two numbers multiply to -56 and add to -1

-8*7 = -56

-8+7 = -1

0 = ( x-8) ( x+7)

Using the zero product property

x-8 =0   x+7 =0

x = 8   x=-7

Since the length cannot be negative x cannot be negative

x=8

8 0
4 years ago
Read 2 more answers
3. The Human Resources department of a large corporation wants to estimate the mean number
VARVARA [1.3K]

Answer:

The 90% confidence level margin of error for this sample mean is 0.42

Step-by-step explanation:

The Human Resources department conduct a random sample of 30  employees

n = 30

Standard deviation = \sigma = 1.4

z = 1.645

Formula of 90% confidence level margin of error for this sample mean=Z \times \frac{\sigma}{\sqrt{n}}

So, margin of error for this sample mean=1.645 \times \frac{1.4}{\sqrt{30}}

So, margin of error for this sample mean=0.42

Hence the 90% confidence level margin of error for this sample mean is 0.42

7 0
4 years ago
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asambeis [7]
6:5 is the ratio #answerwithquality #BAL
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3 years ago
An experiment was performed on a 2kg block. Forces 5, 10, and 15 Newton's respectively were applied to the block for 5 seconds.
babymother [125]

Answer:

B) The final acceleration will triple between the first and third trial.

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3 years ago
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