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11111nata11111 [884]
3 years ago
13

In a class of 40 students on average 8 will be left handed, if a class includes 12 lefties estimate how many students are in the

class
Mathematics
1 answer:
amm18123 years ago
4 0
40/8 = x/12
40 multiplied by 12 then divide by 8
60 children in a class
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Which of the following sets of numbers could represent the three sides of a triangle?
olchik [2.2K]

Answer:

i'm not sure but i think its 7,14,21

Step-by-step explanation:

7,14,21

6 0
2 years ago
Find the area for the circle below<br>A. 61.42<br>B. 36.25<br>C. 78.54<br>D. 108.85​
Lorico [155]
C
Source: trust me bro
8 0
2 years ago
Melissa collected data from a group of people regarding whether or not they prefer turkey or ham and whether or not they prefer
dedylja [7]

Answer:

I’m pretty sure it’s B)- Z

Step-by-step explanation:

18. The correct table must display the following information.

38% prefer turkey with mayonnaise 20% prefer turkey with mustard 24% prefer ham with mayonnaise 18% prefer ham with mustard

In tables Z and W, each table totals 50 people.

To find the relative frequencies of the data in these tables, divide each number in the table by 50.

In tables X and Y, each table totals 100 people.

To find the relative frequencies of the data in these tables, divide each number in the table by 100.

The only table which is a possible representation of the data collected is table Z.

Likes Baseball

Does Not Like Baseball

Total

Likes Football Does Not Total Like Football

0.50 0.64 0.54

0.50 0.36 0.46 1.00 1.00 1.00

Mayonnaise Mustard

Total

Turkey

19 ÷ 50 = 0.38

10 ÷ 50 = 0.20

29 ÷ 50 = 0.58

Ham

12 ÷ 50 = 0.24

9 ÷ 50 = 0.18

21 ÷ 50 = 0.42

Total

31 ÷ 50 = 0.62

19 ÷ 50 = 0.38

50 ÷ 50 =1.00

3 0
3 years ago
The vertex of the parabola below is at the point (4, -1). Which of the equations below could be the one for this parabola?
kari74 [83]
One possible equation for this quadratic would be 

y=(x-4)²-1.  This is vertex form:  y=a(x-h)²+k, where (h, k) is the vertex.

However, this is not the only possible equation.  There could be multiple values for a, in front of the parentheses, that we don't know about from the information we are given.

We can also write this equation in standard form (y=ax²+bx+c).  First write the squared binomial as the product of two binomials:
y=(x-4)(x-4)-1

Multiply the binomials:
y=x*x-4*x-4*x-4(-4)-1
 = x²-4x-4x--16-1
 = x²-8x+16-1
 = x²-8x+15

Again, this would change depending on what the value of a is in the functoin.
6 0
3 years ago
A) an = 4 − 3<br><br> B) an = 4 + 1<br><br> C) an = 4 + 3<br><br> D) an = 4 − 1
Pavel [41]
It should be C) an = 4+3
6 0
2 years ago
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