30. suppose that there are 30 quarters, 17 dimes and 13 nickels in a bag and one coin is drawn from the bag. what is the expected value of the draw in dollars? (round to the nearest cent.)

Step-by-step explanation:

3x -1 +2x + 4 x +1 = 180

9x = 180

X= 20

<ABC = 59

< CB D = 40

< DBE = 81

Answer:

im not gonna lie i dont know a lot about this but i would put no for all because no matter which way you count its more than 5 units away if thats what is asking

Step-by-step explanation:

Answer:

Step-by-step explanation:

The algebraic identity to be used here :

We know that :

Therefore,

The zeros are :

Answer:

\(x=-\dfrac{9}{10} \quad x=\dfrac{9}{10}\)

Step-by-step explanation:

\(\begin{aligned}100x^2-81 & =(10^2)x^2-9^2\\ & = (10x)^2-9^2\end{aligned}\)

\(\textsf{Difference of Two Squares Formula}: \quad a^2-b^2=\left(a+b\right)\left(a-b\right)\)

\(\implies a=10x \: \textsf{ and } \: b=9\)

\(\implies 100x^2-81=(10x+9)(10x-9)\)

\(\begin{aligned}\textsf{To find the zeros}: \quad 100x^2-81 & = 0\\\\\implies (10x+9)(10x-9) & =0\\\implies 10x+9 & =0 \implies x=-\dfrac{9}{10}\\\implies 10x-9 & =0 \implies x=\dfrac{9}{10}\end{aligned}\)

Answer:

A , C , E , F

Step-by-step explanation:

If you have to write the solution, just tell me.

The correct answer is  you will get approximately £1.30 for one Australian dollar.

To find out how many British pounds you will get for one Australian dollar, we need to determine the exchange rate between the British pound and the Australian dollar.

Given that £1 = US$1.11316 and A$1 = US$0.8558, we can calculate the exchange rate between the British pound and the Australian dollar as follows:

£1 / (US$1.11316) = A$1 / (US$0.8558)

To find the value of £1 in Australian dollars, we can rearrange the equation:

£1 = (A$1 / (US$0.8558)) * (US$1.11316)

Calculating this expression, we get:

£1 ≈ (1 / 0.8558) * 1.11316 ≈ 1.2992

Therefore, you will get approximately £1.30 for one Australian dollar.

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Answer:

d = \(3\sqrt{2}\)

Step-by-step explanation:

The distance formula is d = \(\sqrt{(x_{2}-x_{1})^{2}+(y_{2} -y_{1} )^{2} }\)

Plug in the points.

d = \(\sqrt{(2-(-1))^{2}+(6 -3 )^{2} }\)

Solve

d = \(\sqrt{18}\)

Simplify by separating 18 into 9x2

d = \(\sqrt{9(2)}\)

Take the square root of 9 to finish simplifying

d = \(3\sqrt{2}\)

Answer:

y = 1/2x + 2 1/2

Step-by-step explanation:

y - 4 = 1/2 (x - 3)

y - 4 = 1/2x - 3/2

y = 1/2x - 3/2 + 4

y = 1/2x + 2 1/2

Answer:

the winner of Boise in a running or

Answer:

-3x-7

Step-by-step explanation:

Answer:

-3x - 7

Step-by-step explanation:

Answer:

4 units.

Step-by-step explanation:

As its a tangent to the y axis the radius is 0 - (-4) = 4 units.

Answer:

5 boxes

Step-by-step explanation:

Divide 15 by 3 and you'll get your answer

Hope that helps!

Step-by-step explanation:

1 = $3

x = $15

crossmultiply

3x = 15

x = 15/3

x = 5 boxes of cereal

if this helped pls give brainliest

Given the equation:

-39 = 4w + 7(w-3)

Let's solve the equation for w.

To solve take the following steps.

• Step 1.

Apply distributive property

• Step 2.

Combine like terms

• Step 3.

Add 21 to both sides

Step 4.

Divide both sides by 11

ANSWER:

w = -1.63

Answer: The sample formed by the people who are recounted in the U.S. Census Bureau's accuracy check is a random sample. This is because the census districts are selected in a random manner, with each district having an equal chance of being selected. Random sampling is a method of selecting a sample from a larger population in which each member of the population has an equal chance of being selected. This ensures that the sample is representative of the population as a whole and allows for the estimation of population characteristics with a known degree of precision.

Step-by-step explanation:

Answer:

i think the answer is 20√5x^3y^5

Answer:

It is C : 1/4 mile over 36 seconds

Step-by-step explanation:

Answer:

25.6%

Please make me the brainlist

In the question, we are told that Graham borrowed $10 from his mum to buy a toy. He pays back his mum $2 per week from his allowance. We can find how long will it take for him to pay her below.

Explanation

Since Graham is paying back every week, this means that the payback time would be measured in weeks.

We can use the formula below;

Thus;

Answer: 5 weeks

Answer: m = 2; b = 6

y = mx + b

because the line  parallel to  y = 2x + 3

=> \(\left \{ {{m=2} \atop {b\neq 3}} \right.\)

the line passes through  the point (0,6) => 6 = b

Step-by-step explanation:

A is the answer to the question

Hope it helps

Answer:

the answer is A

Step-by-step explanation:

(4, 1)

x = 4 y = 1

x + 2y = 6

4 + 2(1) = 6

4 + 2 = 6

x - y = 3

4 - 1 = 3

hopefully this helps :)

Answer:

X=3-(y/2)=8

Step-by-step explanation:

suppose the numbers is X

3 less than half the product of a number is 8

X= 3- (y/2)=8

Answer:

34

Step-by-step explanation:

The angle x^2 + (x+12) + 100 will need to equal 180.

Therefore, set your formula

180 = 100+(x+12)+x

180 = 100+2x+12

180-100-12=2x

68=2x

68/2 = x

34 = x

y = 5x + 3

-1 = 5(2) + 3

-1 = 13 (wrong)

y = -2x - 4

-1 = -2(2) - 4

-1 = -8 (wrong)

Answer:

1st side= 4m

2nd side= 8m

3rd side= 12m

Step-by-step explanation:

Let the first, second and third side of the triangle be a, b and c meters respectively.

a= b -4 -----(1)

c= 3a -----(2)

Perimeter of triangle

= a +b +c

= 24

a +b +c= 24 -----(3)

From (1): b= a +4 -----(4)

Subst. (2) and (4) into (3):

a +(a +4) +3a= 24

3a +a +a +4= 24

5a +4= 24

5a= 24 -4

5a= 20

Divide both sides by 5:

a= 20 ÷5

a= 4

Substitute a= 4 into (4):

b= 4 +4

b= 8

Substitute a= 4 into (2):

c= 3(4)

c= 12

Thus, the lengths of the first, second, and third side of the triangle are 4m, 8m and 12m respectively.

These probabilities can be determined from additional information about the production process and the machines, such as the probability distribution of the lengths produced by each machine.

If the piece has a final length less than 1, the conditional probability that it came from machine A depends on the probability of the piece having a length less than 1 given that it was produced by machine A and the probability of the piece being produced by machine A in the first place.

Let's denote the event of the piece having a length less than 1 as "L" and the event of the piece being produced by machine A as "A". The conditional probability of the piece coming from machine A given that its length is less than 1 can be calculated as:

P(A | L) = P(A and L) / P(L)

Where P(A and L) is the probability of both events A and L occurring and P(L) is the probability of event L occurring.

Without this information, it is not possible to determine the exact value of P(A | L).

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The three rules of logs are the product rule, quotient rule, and power rule.

The three rules of logs are fundamental rules that are used in manipulating logarithmic expressions.

Product rule:

The product rule states that the logarithm of the product of two numbers is equal to the sum of the logarithms of the individual numbers.

Quotient rule:

The quotient rule states that the logarithm of the quotient of two numbers is equal to the difference of the logarithms of the individual numbers.

Power rule:

The power rule states that the logarithm of a number raised to a power is equal to the product of the power and the logarithm of the base.

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A relation ~ on R' is defined as a relation where (a,b) ~ (c,d) if and only if a3+b3=c3+d3. This relation is transitive but not symmetric.

Transitivity of the relation states that if (a, b) ~ (c,d) and (c, d) ~ (e, f) then (a, b) ~ (e, f). This means that if a3+b3=c3+d3 and c3+d3=e3+f3 then a3+b3=e3+f3, thus, the relation is transitive.

Symmetry of the relation means that if (a, b) ~ (c, d) then (c, d) ~ (a, b). This, however, does not hold in this relation since it is possible for a3+b3=c3+d3 and yet c3+d3≠a3+b3. For example, (1,2) ~ (8,4), this is true since 13+23=83+43, however, this does not mean that (8,4) ~ (1,2) since 83+43≠13+23. Therefore, this relation is not symmetric.

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Answer:

i dont know

what you wanna know

Step-by-step explanation:

Identify the coordinates (x₁,y₁) and (x₂,y₂). We will use the formula to calculate the slope of the line passing through the points (3,8) and (-2, 10).

Input the values into the formula. ...

Subtract the values in parentheses to get 2/ (-5).

Simplify the fraction to get the slope of -2/5.

Go to sleep this is a lullaby slopes slopes slopes over here over there slopes everywhere.

thx for points

Answer: it is first person well it should be

Step-by-step explanation:

In "The Emperor's New Clothes" no narrator does the opening tell you about the narrator. Correct option is c.

In "The Emperor's New Clothes," the opening doesn't provide direct information about the narrator's perspective. The opening typically sets the scene and introduces the main characters and setting. As a result, it does not clearly indicate the narrator's point of view.

Therefore, the correct answer would be:

C. no narrator

In some versions of the story, there may be a narrator providing the context or guiding the reader, but in the traditional fairy tale version, the story is usually presented without a specific narrator.

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