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k0ka [10]
3 years ago
15

Plz help ill give u brainlist

Mathematics
2 answers:
Alex3 years ago
7 0
The diameter is 2r -- two times the radius.
Radius = 11
Diameter = 5x + 7

Plug the radius and diameter into the equation D = 2r.
5x + 7 = 2(11) 

5x + 7 = 22
5x = 15
x = 3

The answer is C) 5x + 7 = 22.
The value of x is 3.
belka [17]3 years ago
6 0
C. 5x+7=22 since diameter is equal to double the radius. radius=11 so diameter equals 22. then just make 5x+7 = to 22
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A random sample of 18 adults, chosen from the 1500 adults in the town, took a survey asking their opinion on a recent property t
Tamiku [17]

Answer:

C) I & III

Step-by-step explanation:

Given:

Sample size, n = 18

Sample proportion = 25% = 0.25

Here, a random sample of 18 adults were chosen from the 1500 adults in town. This shows that the random condition was satisfied because the sample was drawn randomly from the general population of adults in the town.

For the normal condition to be satisfied, np should be greater than 10, ie np > 10.

In this case, np = 18 * 0.25 = 4.5

Since np is less than 10, the normal condition was not satisfied.

For the 10% condition to be satisfied, sample size should not be more than 10% of the general population.

Here, the sample size is 18 and the population is 1500. Therefore,

\frac{18}{1500} * 100 = 1.2

Since the sample size is 1.2% of the population which is less than 10%, the 10% condition was satisfied.

The correct option is C, because only I & III were satisfied.

4 0
2 years ago
I need help with 35 please
Rufina [12.5K]

Answer:

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6 0
3 years ago
Please help me!!!!!! I really neeeeeeed
Butoxors [25]

Answer:

A-(x+4,y-5)

B- move 1 unit left and 7 units down

Step-by-step explanation:

A- 4 units right is x so

(x+4,y__)

5 units down is y so

(x+4,y-5)

B- move 1 unit left and 7 units down

because (x-1,y__) is going left because of the subtraction sign and its the x-coordinate, and (x-1,y-7) is down because its a Y-coordinate and sub so its going down.

<h2><u>TIP- Going left/down is always subtract/negative going right/up is positive/addition.</u></h2>
6 0
3 years ago
△ABC is reflected to form ​​ ​ △A'B'C' ​.
Leno4ka [110]
Reflection across the y-axis
7 0
3 years ago
Read 2 more answers
At Quincy Middle School, there are 45 girls and 27 boys in the sixth grade. There are two sixth grade classrooms. Ms. Alvarado's
Furkat [3]
Ms alvadaro 2:1 mr lowry 3:2
3+2=5  2+1=3
5:3
45/5=9 27/3=9
2·9=18  1·9=9
8 0
3 years ago
Read 2 more answers
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