HELP ITS IN THE PICTHER

Answer:

B.

Step-by-step explanation:

The square root of 100 is 10, and 10 is a rational number.

Answer:

100

hope it helps to you ....

Answer

A.x=8

1/3x-2/3x=2

x-2=6

x=6x2

x=8

Answer:

2.0936 * [tex]10^{2}[/tex]

Hope that this helps!

Part (A)

We have 6 red and 4 blue marbles, so 6+4 = 10 total.

The probability of getting red is 6/10 since we have 6 red out of 10 total.

The probability of getting another red is 5/9 because we don't put the first marble back.

The probability of getting two reds in a row is (6/10)*(5/9) = 30/90 = 1/3

========================================================

Part (B)

4/10 represents the probability of getting blue on the first try

3/9 represents the probability of getting a blue marble on the second try

We don't put the marble back.

(4/10)*(3/9) = 12/90 = 4/30 is the probability of getting two blues in a row.

========================================================

Part (C)

Add up the results of parts (A) and (B)

1/3 + 4/30

10/30 + 4/30

(10+4)/30

14/30

7/15

The result 7/15 is the probability of either getting two reds OR getting two blues (pick one case only). This tells us that 7 out of 15 times we'll have this happen. This must mean the remaining 8 times will have two marbles of different colors.

So 8/15 is the probability of picking one marble of each color.

------

As an alternative, we could also consider it like this

(6/10)*(4/9) = 24/90 = 4/15

This represents the probability of picking red first, then blue next.

Similarly,

(4/10)*(6/9) = 24/90 = 4/15

represents the probability of picking blue first, then red next.

Therefore, 4/15+4/15 = 8/15 is the probability of getting one of each color.

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Given:

A number when divided by 780 gives remainder 38.

To find:

The reminder that would be obtained by dividing same number by 26.

Solution:

According to Euclis' division algorithm,

[tex]a=bq+r[/tex]                ...(i)

Where, q is quotient and [tex]0\leq r<1[/tex] is the remainder.

It is given that a number when divided by 780 gives remainder 38.

Substituting [tex]b=780,\ r=38[/tex] in (i), we get

[tex]a=(780)q+38[/tex]

So, given number is in the form of [tex]780q+38[/tex], where q is an integer.

On dividing [tex]780q+38[/tex] by 26, we get

[tex]\dfrac{780q+38}{26}=\dfrac{780q}{26}+\dfrac{38}{26}[/tex]

[tex]\dfrac{780q+38}{26}=30q+\dfrac{26+12}{26}[/tex]

[tex]\dfrac{780q+38}{26}=30q+\dfrac{26}{26}+\dfrac{12}{26}[/tex]

[tex]\dfrac{780q+38}{26}=30q+1+\dfrac{12}{26}[/tex]

Since q is an integer, therefore (30q+1) is also an integer but [tex]\dfrac{12}{26}[/tex] is not an integer. Here 26 is divisor and 12 is remainder.

Therefore, the required remainder is 12.

Answer:

The time duration of the ocra whale spends under water is 4 seconds

Step-by-step explanation:

The equation that model the path of the ocra whale is presented as follows;

k(x) = x² - 2·x - 8

Where;

x = The time elapsed in seconds under water

k(x) = The height in feet below water

Therefore, the point where the ocra whale enters the water, k(x) = 0

At the point of submerging below the water surface, we have;

k(x) = 0 = x² - 2·x - 8

Factorizing the quadratic equation gives;

0 = x² - 2·x - 8 = (x - 4)·(x + 2)

Therefore, when k(x) = 0, either;

(x - 4) = 0, which gives, x = 4

(x + 2) = 0, which gives, x = -2

Given that 'x' represent the time, the time elapsed while the whale is under water, x = 4 seconds

Answer:

Mean = 10

Variance = 30.89

Standard Deviation = 5.56

Step-by-step explanation:

Find the Mean, Variance and Standard deviation

6, 14, 8, 2, 11, 7, 12, 4, 18, 18

Step 1

We rearrange the data and find the Mean

2, 4, 6, 7, 8, 11, 12, 14, 18, 18

Mean = Sum of values/Number of values

= 2 + 4+ 6+ 7+ 8 + 11 + 12 + 14 + 18 +18/10

= 100/10

= 10

Step 2

We find the variance of this sample days ma

Variance = (x - Mean)²/n - 1

n = 10

Hence,

=( (2 - 10)² +(4 - 10)²+ (6 - 10)²+ (7 - 10)² + (8 - 10)² + (11 - 10)² + (12 - 10)² + (14 - 10)² + (18 - 10)² +(18 - 10)²) /10 -1

= ( 64 + 36 + 16 + 9 + 4 + 1 + 4 + 16 + 64 +64)/9

= 278/9

= 30.88888889

Approximately = 30.89

Step 3

Standard Deviation = √Variance

= √30.89

= 5.5578772926

Approximately = 5.56

Answer:

y= -1/2x+4

Step-by-step explanation:

slope = rise/run on the graph. the graph is going down, so it's negative. find where the line intersects the graph at a point and then count the squares up and over until it meets again. the line meets at (6,1), you count up one square and over 2 and it meets again. this gives you your rise/run = 1/2. the y intercept is where the line intersects the y axis. here the y intercept is 4 because the like goes through 4 at the y axis.

Answer:

C) 80

Step-by-step explanation:

triangles always add up to 180 degrees, so 80+20=100 the missing angle is 80 degrees

Step-by-step explanation:

x²+x²= 10

2x²=10

x²=10/2=5

x =√5 or 2.24

Answer:

79 inches

Step-by-step explanation:

2 m * 100cm/m * 1 in/2.54cm = 78.7401574803 in

rounded

79 inches

Answer: 190

Step-by-step explanation:

Answer:

C. 137

Step-by-step explanation:

Answer:

216 units

Step-by-step explanation:

To find the distance, add the absolute values

I -49 I + I 167 I = 49 + 167 = 216 units

Answer:

4

Step-by-step explanation:

3*5*4*3*2*1

3x-x+2=4

Answer:

0.1

Step-by-step explanation:

Answer:

√2 = 1.41

√5 = 2.23

SO IF YOU MULTIPLY SEE

3.1622776601683793319988935444327

Step-by-step explanation:

Answer: 54250

Step-by-step explanation:

Given 15 1/2% of 3500 to find solve solution 31/2 x 3500 = 54250

Answer:

1 is the answer have a good day

Answer:

Correlation coefficient for the data in the table was found to be 0.93

Step-by-step explanation:

The correlation coefficient for the data in the table is 0.93.

The correlation coefficient is used to measure the relationship that exists between two or more variables. If two variables have a positive correlation, as one of the variable increases, the other variable increases. If one of the variable decreases, the other variable decreases.

When calculated on a financial calculator, the correlation coefficient is 0.93.

To learn more about correlation, please check: https://brainly.com/question/27246345

#SPJ2

Answer:

s+18=120

s=102

Step-by-step explanation:

Basically, she had 120 after everything was done, so we know 120 is on the right side of the equal sign. We know she had an unknown number of songs and after she added 18 it was 120. That means the equation is s+18=120

Now to solve it is simple, just isolate s by subtracting 18 on both sides.

s+18=120

-18       -18

s=102

Answer:

Answer:

3 lb. 6 oz.

Step-by-step explanation:

4 - 1 = 3

8 - 2 = 6

3lb. 6oz.

Answer:

C.   107°

Step-by-step explanation:

Angles 4 and 8 measures the same since they're congruent.

A straight line measures 180°

180° - 73° = 107°

Answer:

3. 21.98

Step-by-step explanation:

Answer:

134.0 in^3

Step-by-step explanation:

Volume = (radius^2 * pi * height)/3 = (4^2 * pi * 8)/3 = 134.0 in^3

Answer:

B

Step-by-step explanation:

Dividing by a number is the same as multiplying by the reciprocal (one over that number)

so z/144 is equal to z * 1/144

Answer:

3/5

Step-by-step explanation:

There are 12 window seats and 8 aisle seats giving us a total of 20 seats.

12/20 = 3/5

Therefore, the probably the next person will be assigned a window seat is 3/5.

Answer:

If I read it right I believe it's C.

Step-by-step explanation:

Answer:

4 th option

Step-by-step explanation:

∠ 2 and ∠ 7 are congruent since they are Alternate exterior angles

Answer:

16 square units

Step-by-step explanation:

hope that helps

Answer:

y = (-3/4)x + 7

Step-by-step explanation:

Answer:

y = -3/4x - 7

Step-by-step explanation:

Slope Intercept form: y=mx + b where m = slope and b = intercept.

Isolate y.

9x + 12y = -84

-9x             -9x (subtract 9x from both sides)

12y = -9x - 84

(divide by 12)

y = -9/12x - 7

(simplify fraction)

y = -3/4x - 7

Answer:

352 m

Step-by-step explanation:

The area of a trapeze is (the biggest base + the smallest base) × height / 2

The area from rectangles are side a × side b

Trapeze: (6+12)×4/2 = 36

Rectangles: 5 × 10 = 50

6 × 10 = 60

12 × 10 = 120

There are two trapeze andtwo rectangles with the samesize, so you double their area:

2×36 + 2 × 50 + 60 + 120 = 352 m