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Vsevolod [243]
3 years ago
10

What is NOT equivalent to 20%? A 0.2 B 1:5 C 10/50 D 4/16

Mathematics
2 answers:
aleksley [76]3 years ago
7 0

Answer:

4/16

Step-by-step explanation:

mark me brainleist please

Butoxors [25]3 years ago
5 0
D. 4/16 as it equals to 0.25 or 1/4
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Two different types of polishing solutions are being evaluated for possible use in a tumble-polish operation for manufacturing i
murzikaleks [220]

Answer:

p-value: 1.000

There is enough evidence at the 1% level of significance to suggest that the proportions are not equal.

Step-by-step explanation:

We will be conducting a difference of 2 proportions hypothesis test

The hypothesis for this test is:

H_0:  p1 - p2=0

H_a:  p1 - p2  ≠0

(p1 ) = 252/300 = 0.84

(p2) = 195/300 = 0.65

This is a 2 tailed test with a significance level of 1%.  So our critical values are:  z > 2.575  and z < -2.575

See the attached photo for the calculations for this test

8 0
3 years ago
Evaluate 2^-4 pleaseee help asap
Alexxandr [17]

Answer:

1/16

Step-by-step explanation:

2^-4

We know that a^ -b = 1/ a^b

2^-4 = 1/2^4

2^4 =16

so 1/2^4 = 1/16

5 0
3 years ago
Read 2 more answers
I need help please!!
Artyom0805 [142]

Answer:

39.27

Step-by-step explanation:

Calculate whole area of circle - pi5^2 = 78.54

Divide answer by 2 as only half of the circle is shaded - 78.54/2 = 39.27

7 0
3 years ago
Read 2 more answers
What is the discriminant of the quadratic equation 0 = –x2 4x – 2? a.–4 b.8 c.12 d.24
MrMuchimi
X^2 - 4x + 2
d = b^2 - 4ac, where a = 1, b = -4 and c = 2
d = (-4)^2 - 4 x 1 x 2
d = 16 - 8
d = 8
4 0
3 years ago
Can someone help with #3 and show your work !!
ioda
If s represents the number of songs Kim downloads, her expenses for a month must satisfy the inequality
  5.00 + 0.58·s ≤ 13.00

To solve this, subtract 5.00 to get the s-term by itself, then divide by the coefficient of s.
  0.58·s ≤ 8.00
  s ≤ 8.00/0.58 ≈ 13.79
The number of songs must be an integer, so we conclude Kim can download 13 songs, but not 14 songs.

Kim can download 13 songs without exceeding her budget.
8 0
3 years ago
Read 2 more answers
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