There are 5 red balls,6 white balls and 7 green balls in a box.If one ball is taken without looking,what is the probability that it is white?

Answers

Answer 1
Answer: 5 + 6 + 7 = 18

6/18
1/3

1/3 chance
Answer 2
Answer: Probability = No. of favourable outcomes / no. of outcomes.
Thus,

\alpha = (6)/(13)\n \alpha = 0.46 \n \n Probability = 0.46

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From 126 ounces to 48 ounces as a percent
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Find the measures of the angles.A. m∠x
B. m∠y
A. m∠x = 50°
m∠y = 135°
B. m∠x = 125°
m∠y = 50°
C. m∠x = 50°
m∠y = 125°
D. m∠x = 135°
m∠y = 50°

Answers

C. m∠x=90-40=50° 
m∠y=180-55=125°

If the eccentricity of an ellipse is 0.43 and the length of its major axis is 11 units, how far from the center are the foci located?

Answers

Answer:

2.365 unit far away the center are the foci located.      

Step-by-step explanation:

Given : If the eccentricity of an ellipse is 0.43 and the length of its major axis is 11 units.

To find : How far from the center are the foci located?

Solution :

The eccentricity of an ellipse is defined as

e=(c)/(a)

Where, e is the eccentricity

c is the distance from center to focus

a is the distance between focus to vertex.

We have given,

Eccentricity of an ellipse is 0.43 i.e. e=0.43

The distance between focus to vertex is the half of the length of its major axis.

i.e.a=(11)/(2)

Substitute in the formula,

0.43=(c)/((11)/(2))

c=0.43* (11)/(2)

c=2.365

Therefore, 2.365 unit far away the center are the foci located.                      

Which equation is correct

Answers

The last one, v = -2,000y + 20,000
v=2,000y+20,000
hope it helps

The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10. what is the value of y when x=6?

Answers

The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10 then the value of y is 12 when x =6.

The two points from the given information are (0, 4) and (3, 10).

Let us find the slope = (10-4)/(3-0)

=6/3

=2

Now let us find the y intercept to write the equation in slope intercept form.

Consider the point (0, 4) to find y intercept.

Plug in the point values in slope intercept form:

4=2(0)+b

Solve for b:

b=4

The equation in slope intercept form is y=2x+4.

Now let us find the value of y when x=6.

Plug in x as 6 in the equation y=2x+4.

y=2(6)+4

y=12+4

y=16

Hence, the value of y is 16 when x is 6.

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We know x+y=0; so, if x=6 y= -6

STANDARD NOTATIONSCIENTIFIC NOTATION
1) 76,450,000
7.645 x 10
2) 0.000327
3.27 x 104
3) 34,000
3.4 x 104
4) 116,000,000,000
1.16 x 109
<
5) 0.024
24 x 10-2
6) 2,800
2.8 x 103
7) 100
1 x 103
8) 0.0000099
9.9 x 10-6
9) 900,000
9 x 10-5
10) 0.00633
63.3 x 10-3

Answers

Answer:

Step-by-step explanation:

1. 7.645 x 10^7

2. 3.27 x 10^-4

3. 3.4 x 10^4

4. 1.16 x 10^11

5. 2.4 x 10^-2

6. 2.8 x 10^3

8. 9.9 x 10^-6

9. 9 x 10^5

10. 6.33 x 10^-3

7. 1 x 10^2

Final answer:

The listed conversions between standard and scientific notation are mostly correct, with corrections provided for the representations of 900,000 and 100. Scientific notation involves expressing numbers as a decimal between 1 and 10 multiplied by a power of 10.

Explanation:

The conversions between standard notation and scientific notation provided here mostly appear to be correct, however, there are a few errors:

9) 900,000 in scientific notation would be 9 x 105, not 9 x 10-5.

7) 100 in scientific notation would be 1 x 102, not 1 x 103.

Standard notation is a straightforward representation of numbers. Scientific notation, on the other hand, is a method of writing or displaying numbers in terms of a decimal number between 1 and 10, multiplied by a power of 10.

Learn more about Standard and Scientific Notation here:

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In 1975 the price of gasoline per gallon was 52.5 cents. With the 1975 price as the reference value, the gasoline price index for 1998 is 192.4. What was the cost of a gallon of gasoline in 1998?

Answers


In 1998, gasoline prices were $1.03 per gallon.