A fair coin is tossed 30 times and 12 heads result. What is the relative frequency of obtaining a tails?

Answers

Answer 1

Answer:

You have a 60% chance if obtaining tails

Step-by-step explanation:

30-12=18

30x60%=18

18 times of obtaining tails means you have a 60% chance of obtaining tails


Related Questions

Based on your observations, what is the relationship between a linear pair and supplementary angles?

Answers

Answer:

linear pairs add up to 360 degrees and so does supplementary angles

Answer:

If two angles form a linear pair, then the angles are also supplementary.

Step-by-step explanation:

The graph of a linear function passes through the points (-
3, -4) and (2, -1)
Find the slope of this function?

Answers

Answer:

3/5

Step-by-step explanation:

y2 - y1 / x2 - x1

-1 - (-4) / 2 - (-3)

3/5

3/5 is the slope.

What is this expression in simplified form?

Answers

Answer:

B is answer.

Step-by-step explanation:

B is answer.

The answer is B you multiply -6 times 3 to get -18 and 2 times 5 is 10

Can Anyone help me with this, please? :00

Answers

Answer:

Option C is your answer

Step-by-step explanation:

please mark as brainlyest

Last week Zurina worked the following days and times:

Day 1: 4 hours, 15 minutes
Day 2: 5 hours, 0 minutes
Day 3: 6 hours, 45 minutes

Find Zurina's total time worked in decimal hours. (4 points)
14.45
15.60
16.00

Answers

Answer:

46 hours and 5 minutes she worked

Answer is 15.60

we can say 4h and 15 min is 4.15

4.15 + 5.00 + 6.45 =

15.60

so the answer would be B

please mark me as a brainliest:)

Find the unit rate. 7 square foot in - hour

Answers

i need more info. Is this the whole question?

I need help with this I don't ever understand rounding.
Round each decimal number to the nearest tenth. Then, select the best estimate for the subtraction equation 1.79 − 0.67 = ___.

1
1.1
1.2
1.3

Answers

Answer: 1.12

Step-by-step explanation:

Here 1.79 -0.67 = 1.12 ( if we subtract from the large  positive number to a minimum number then it's answer always should be positive value )

Now we are looking for the rounding figure with is very near of it which is 2 decimal or percentage value

For example :

1.444- 0.67 = 0.774 ( Here last digit is 4 so its round will be 0.77)

1.444-0.677 = 0.767 ( Here last digit is 7 so its round will be 0.77)

So we will round the value if it's last digit is greater than or equal to 5 value.

Does this scatter plot show a positive trend, a negative trend, or no trend?

Answers

Answer:

This shows no trend.

Step-by-step explanation:

Answer:

No Trend

Step-by-step explanation:

The scatter plot is everywhere and there is no pattern within it therefore it has no trend.

Hope it helps

88.98 to the nearest tenth​

Answers

Answer:

89 is the answer

Step-by-step explanation:

88.98

= 89

9514 1404 393

Answer:

  89.0

Step-by-step explanation:

One way to round a number is to add half the place value you're rounding to, then truncate at the desired place value.

Here, we want to round to a tenth (0.1), so we first add half that value:

  88.98 + 0.05 = 89.03

Now, we throw away all digits after the tenths place.

  89.0 . . . . our rounded value

I will mark as brainliest:)

Answers

Answer:d

Step-by-step explanation:

Divide.
10.12 105 so yeah help

Answers

Answer:

0.0001012

Step-by-step explanation:

I have explained the solution on paper step by step! but I am typing this to get the solution. to 20 characters

Someone help me please!!!

Answers

Answer:

Second one

Step-by-step explanation:

By is postive and C is positive so there wouldn't be any negatives or minus signs

Answer:

The Second One!

Step-by-step explanation:

I need help with this problem.

How do I do it?

Answers

Answer:

20

Step-by-step explanation:

For the area of a rectangle we use A = L* W

We know area or A = 420

and we know length or L = 21

Now we need to find the width or W

(420) = (21) * W

Divide both sides of the equation by 21 to isolate the variable.

That leaves us with:

W = 20

Can anyone help me with this math problem? College Math.

Answers

Answer:

Yes this could be true if there were 127 students taking algebra but not biology, and there were 77 students taking biology but not algebra

Step-by-step explanation:

Not college math just simple subtraction?

Let [tex]a[/tex] be the amount of students taking only algebra

Let [tex]b[/tex] be the amount of students taking only biology.

212 - 85 - 25 = [tex]a[/tex]

[tex]a[/tex] = 127

212 - 102 - 25 = [tex]b[/tex]

[tex]b[/tex] = 77

1.A pile of 15 boxes is 3 metres high. What is the depth of each box?

2.An angle measuring 60 degrees is measured as 62 degrees. What is the percentage error correct to 3 significant figures?

solve all for brainiest

Answers

Answer:

#1

The depth of each box:

3 m / 15 = 300 cm / 15 = 20 cm

#2

The error is:

62 - 60 = 2 degrees

The percentage error:

2/60*100% = 3.33% (3 sf)

Answer:

#1

1 m = 100 cm

3 m = 3 × 100 = 300 cm

Depth of one box = 300/15 = 20 cm

#2

Percentage error = Error/Real measure × 100

(62 - 60)/60 × 100

2/3 × 5

10/3

3(in significant figures)

Help please! What is the length of the highlighted side? (Show work)

Answers

Answer:

10

Step-by-step explanation:

30ft -20ft=10ft

The ________ is the actual population of individuals, or clusters, from which a random sample will be drawn.

Answers

The SAMPLING FRAME is the actual population of individuals, or clusters, from which a random sample will be drawn.

7. After 8 months, Joellen has lost 75 pounds. This is a 30% decrease in her starting weight. Find
her starting weight.

Answers

Answer:

Started 100% = x pounds

30% = 75 pounds

x= 75*100÷30= 250 pounds

Starting Weight = 250 pounds

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

30% = 75 pounds

100% = 250 pounds

The starting weight was 250 pounds.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

30% decrease = 75 pounds

Starting weight = 100%

Now,

30% = 75

Multiply 100/30 on both sides.

100/30 x 30% = 100/30 x 75 pounds

100% = 10/3x 75 pounds

100% = 10 x 25 pounds

100% = 250 pounds

Thus,

The starting weight was 250 pounds.

Learn more about percentages here:

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Restaurant​ A's chicken salad contains the same number of grams of fat as the chicken salad of restaurant C. Restaurant​ B's chicken salad contains 8 more grams of fat than restaurant​ A's chicken salad. If the total amount of fat in all three salads is 77 ​grams, find the number of grams of fat in each salad.

Restaurant​ A's chicken salad has grams of fat.
Restaurant​ B's chicken salad has grams of fat.
Restaurant​ C's chicken salad has grams of fat.

Answers

Answer:

Restaurant A and C: 23 grams of fat

Restaurant B: 31 grams of fat

Answer:

Restaurant A's chicken salad has  7.7 grams of fat.

Restaurant​ B's chicken salad has  61.6 grams of fat.

Restaurant​ C's chicken salad has  7.7 grams of fat.

Step-by-step explanation:

Restaurant A = C

Restaurant B = 8 × Restaurant A

Total Grams of Salad = 77

Let Reataurat A and C be x

and Reataurant B be 8x

so

A + B + C = 77

x + 8x + x = 77

2x + 8x = 77

10x = 77

x = 77 ÷ 10

x = 7.7

Restaurant A's chicken salad has  7.7 grams of fat.

Restaurant​ B's chicken salad has  61.6 grams of fat.

Restaurant​ C's chicken salad has  7.7 grams of fat.

If u want to crass check so

7.7 + 61.6 + 7.7 =

69.3 + 7.7 =

= 77

Evaluate the exponent expression for a = –2 and b = 3.

Answers

Answer:

The choose B) -9/8

Step-by-step explanation:

[tex] \frac{ - 2a ^{ - 3 } {b}^{2} }{a} \\ \frac{ - 2( - 2)^{ - 3} {3}^{2} }{ - 2} \\ \frac{ - 2(9)}{ - 2( - 8)} = - \frac{9}{8} [/tex]

I hope I helped you^_^

Answer:

- 9/8

Step-by-step explanation:

-2a^-3b^2/a where a = -2 and b = 3

-2(-2)^-3(3)^2/(-2)

-2(- 1/8)(9)/(-2)

-2(- 9/8)/(-2)

9/4/(-2) or…

2.25/(-2)

-1.125 or - 9/8

Find the interquartile range for a data set having the five-number summary: 5.6, 11.1, 19.2, 24.5, 33.3

A. 13.6
B. 27.7
C. 13.4
D. 14.1

Answers

Answer:

C

Step-by-step explanation:

The interquartile range is the difference between the upper quartile Q₃ and the lower quartile Q₁

From the five- number summary , then

Q₃ = 24.5 and Q₁ = 11.1

interquartile range = 24.5 - 11.1 = 13.4 → C

Jenna’s monthly monetary income is $1,200. Her total spending last month was $1,400. Why would Jenna need a budget?

Answers

Answer:

Because her spending exceeds her monthly income, Jenna needs a budget to avoid spending money she does not have.

Step-by-step explanation:

Jenna need a budget because her monthly income are less than the spending amount.

What is mean by Subtraction?

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

Jenna’s monthly monetary income is $1,200.

And, Her total spending last month was $1,400.

Here, We have;

⇒ 1200 < 1400

Thus, Jenna need a budget because her monthly income are less than the spending amount.

Therefore, Jenna need a budget because her monthly income are less than the spending amount.

Learn more about the subtraction visit:

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Find a2 and a3 for the geometric sequence 4, a2, a3, 108.

Answers

9514 1404 393

Answer:

  a2 = 12

  a3 = 36

Step-by-step explanation:

Terms of a geometric sequence have a common ratio. If we call that ratio r, then we have ...

  a2 = 4r

  a3 = (a2)r = 4r^2

  108 = (a3)r = 4r^3

  27 = r^3 . . . . . . . . . . . divide by 4

  3 = r . . . . . . . . . . cube root

__

  a2 = 4(3) = 12

  a3 = 12(3) = 36

What is the value of the expression when n = 3?
-2 n(5 + n-8-3n)
12
24
42
ОО
54

Answers

I’m trying to figure this out too

Answer:

The value = 54

Step-by-step explanation:

–2n(5+n–8–3n) = –2(3)(5+3-8-3(3)) = –6(5+3-8-9)=–30–18+48+54=54

I hope I helped you^_^

Nine times the difference of a number and 4 is the same as the product of 2 and the same
number plus 10. What is the number?

Answers

Answer:

x = 8

Step-by-step explanation:

9(x - 4) = 2(x + 10)

9x - 36 = 2x + 20

7x = 56

x = 8

Please mark as brainliest :)

make d the subject of the formula h= d/3 + 2

Answers

Answer:

d= 3h-6

Step-by-step explanation:

h= d/3+2

h-2= d/3

d= 3(h-2)= 3h-6

Answer:

d = 3h - 6

Step-by-step explanation:

[tex]h = \frac{d}{3} + 2[/tex]

subtract 2 on all sides :

[tex](h) - 2 = (\frac{d}{3} + 2) - 2 \\ \\ h - 2 = \frac{d}{3} [/tex]

multiply 3 on all sides:

[tex](h - 2) \times 3= \frac{d}{3} \times 3 \\ \\ 3(h - 2) = d[/tex]

open bracket:

[tex]d = 3h - 6[/tex]

In the Cartesian coordinate system, the x-akis is horizontal.

A.True
B. False

Answers

Answer:

A. True

Step-by-step explanation:

In the Cartesian coordinate system, the x-axis is the horizontal line while y-axis is the parallel line.

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

The projected worth (in millions of dollars) of a large company is modeled by the equation w = 241(1.03) The variable t represents the number of years since
2000. What is the projected annual percent of growth, and what should the company be worth in 2012?

Answers

B 333 mil because 241 would be b

Answer:

I do this program too, do you have any apps/websites that help with this program??

Step-by-step explanation:

what is the median of the number 10 12 13 15 16 19 25?

Answers

Answer:

15 is the middle number

Step-by-step explanation:

BECAUSE IF YOU COUNT FROM THE LEFT AND RIGHT AND WHICH NUMBER APPEARS IN THE MIDDLE IS YOUR MEDIAN

Answer:

15

Step-by-step explanation:

this asks for the median, and not the mean value.

please notice that these 2 values are often if not mostly different from each other.

the median just defines the middle of the value interval, so that half of the different values are left, and half are right of that median value.

here we have 7 values. do we find one, so that 3 other values are smaller, and 3 other values are bigger than that ?

that is 15.

10, 12, 13 are smaller.

16, 19 and 25 are bigger.

so, 15 is the median.

Help find the measure of of the angle A,
Angle b
Angle c
Angle d
Angle e
Angle f
Angle g
Use degrees.

Answers

Answer:

160 degrees

Step-by-step explanation:

starting with the 110 degrees angle. the unnamed angle to the right of the 110 degrees is simply the complement of 110 to 180 degrees = 70 degrees.

then B is actually 180 - 90 - 70 = 20 degrees

and then A is the complementary angle of these 20 degrees to 180 degrees = 160 degrees.

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