This morning, Dakota took a history test. She got 17 out of 34 problems right. What percentage did Dakota get right?

Answer:

1. 740 students

2. 4 years

3. 185 students per year

4. 357 students

5. 185t+357

6. 3132 students

Work:

1. 1837 - 1097 = 740

2. 2008 - 2004 = 4

3. (1837 - 1097) / (2008 - 2004) = 185

4. 185(0) + 357 = 357

5. 185t + 357

6. 185(15) + 357 = 3132

The probability of getting yellow marbles is 0.23.

Probability is the measure of the likelihood that an event will occur in a Random Experiment.

Experiment: A trial or an operation conducted to produce an outcome is called an experiment.

Sample Space: All the possible outcomes of an experiment together constitute a sample space. For example, the sample space of tossing a coin is head and tail.

Favorable Outcome: An event that has produced the desired result or expected event is called a favorable outcome. For example, when we roll two dice, the possible/favorable outcomes of getting the sum of numbers on the two dice as 4 are (1,3), (2,2), and (3,1).

Trial: A trial denotes doing a random experiment.

Given:

Total marbles= 100

blue marbles = 21

green marbles= 19

red marbles = 37

yellow marbles= 23

So, the probability of randomly selecting a yellow marble

= 23/100

= 0.23

Hence, the probability of randomly selecting a yellow marble is 0.23.

Learn more about probability here:

https://brainly.com/question/12629667

#SPJ1

Answer: C= 60 milligrams

Step-by-step explanation:

apply the formula

C = Divide[a,\(40)a+2\(41)]A

Based on the demand curves and the movement of the demand curve, the equilibrium price before the demand shift is b and the equilibrium quantity before the demand shift was e.

The equilibrium price refers to the price at the point where the supply and demand curves meet on the graph.

Before the shift in demand, the equilibrium price was at Price b which was the intersection between demand curve d1 and the Supply curve.

The equilibrium quantity was the quantity at this equilibrium price and this was Quantity e.

Rest of the question is:

Find out more on equilibrium price at https://brainly.com/question/22569960

#SPJ1

The range of the numbers from the data set is 25

From the information, the five number summary of a dataset was found to be 45, 50, 57, 65, 70.

It should be noted that range is the difference between the highest and the lowest number.

Highest number = 70

Lowest number = 45

Range = 70 - 45 = 25

Learn more about dataset on:

brainly.com/question/24309209

#SPJ1

The five number summary of a dataset was found to be:

45, 50, 57, 65, 70

Find the range.

We need to prove

(1 + cos a)(1 - sec a) = -sin a tan a

LHS

= (1 + cos a)(1 - sec a)

= 1 -sec a + cos a - cos a sec a

= 1 - sec a + cos a - cos a (1/cos a)

= 1 - sec a + cos a - 1

= cos a - sec a

= cos a - 1/cos a

= [tex]\frac{cos^{2}a - 1}{cos a}[/tex]

We know that [tex]sin^{2}a+ cos^{2}a = 1[/tex],

Then [tex]1 - cos^{2}a = sin^{2} a[/tex]

        [tex]cos^{2}a - 1 = -sin^{2}a[/tex]

= [tex]-\frac{sin^2a}{cos a}[/tex]

= [tex]-\frac{(sina)(sina)}{cosa}[/tex]

=[tex]- (sin a)(\frac{sin a}{cosa} )[/tex]

We know that tan a = sin a / cos a

= - sin a tan a

= RHS

                                        LHS = RHS

                                     Hence Proved

Learn more about the problems related to trignometry

https://brainly.com/question/17199821

#SPJ9

Answer:

137.54

Step-by-step explanation:

The area of the figure is the total area of the right triangle (on the left) and the rectangle (on the right)

Area of the right triangle = 1/2(9.2)(6.9) = 31.74

Are of the rectangle = (9.2)(11.5) = 105.8

The total area = 31.74 + 105.8 = 137.54

I hop this helps

The Arithmetic means will be inserted between 1 and 36 such that the

sum of the resultant arithmetic progression will be 148 is 8.

The distinction between the 2 arithmetic orders is a constant value in Arithmetic Progression (AP). Another name for it is Arithmetic Sequence.

We'd arrive along all a few key words in AP, which were denoted as:

The AP can also be defined in terms of common distinctions, as illustrated below.

Now, for the stated question;

Assume the first term is'a₁' = 1.

The last term of the series that is nth term is 'a₃₆'.

The sum of all digits between 1 and 36 is given as 148.

Thus, Sn = 148

Substitute the value in the sum formula.

Sn = (n/2)×(a₁ + a₃₆)

148 = (n/2)×(1 + 36)

148 = (n/2)×(37)

n = (148×2)/37

n = 8.

Thus, the total number of Arithmetic means that can be inserted between 1 and 36 is 8.

More information on the arithmetic sequence can be found here.

brainly.com/question/6561461

#SPJ9

Answer: -4/15 (x - 15)

Step-by-step explanation: Got it from quick math

The system of inequalities is,

The total hours will be X+Y≤4.

The total amount she can earn 8.5X + 10Y ≤ 22.85.

First let us assume that she work 7 days in the week.

If she works for 28 hours a week, Then the hours of work done by her in a day will be,

28hours/7days

Per day working hours are 4 hours per day.

now, if she has to earn at least 160$ a week. Then, the amount she has to earn in one day will be 160$/7days,

Amount needed to be earned in one day is 22.85$,

Now, if she work for X hours as cashier, then she can work Y hours as florist.

The total hours for which she can can be represented by,

X+Y≤4

The amount she will earn in one day can be represented by the inequality,

8.5X + 10Y ≤ 22.85.

To know more about Linear Inequalities, visit,

https://brainly.com/question/24372553

#SPJ9

(a) The average rate of change for the height from 0 seconds to 4.6 seconds is 30 meters per second.

(b) The average rate of change for the height from 9.2 seconds to 11.5 seconds is -10 meters per second.

To learn more about average, visit :

https://brainly.com/question/12322912

#SPJ1

One way to reduce the risk of fraudulent activity is to assign two persons to check the inventory.

Accounting principles lay out the basic guidelines and ideas and create the foundation upon which specific accounting standards are built.

Inventory-related accounting principles and procedures might be applied unethically. For instance, many teachers in my field who are required to gather and check-in inventory do so while keeping the inventory for themselves. Having two persons check off the inventory is one method to lower the risk.

Accounting fraud is the illegal modification of a company's financial statements in an effort to hide earnings or losses or to manipulate the company's appearance of health. Accounting fraud can be committed in a variety of ways, including overstating revenue, failing to record expenses, and misrepresenting assets and liabilities.

Learn more about accounting principles here:

https://brainly.com/question/27925688

#SPJ9

The complete question is mentioned below:

Inventory accounting can often be used for unethical or fraudulent behavior. discuss the accounting principles and practices as they relate to inventory, and list one or more way(s) that fraudulent activity can take place. be as detailed as possible, and if appropriate, include a personal experience you have encountered. next, discuss at least one way to reduce the risk of fraudulent practices such as this from taking place in a business.

The measure of side n is √(m^2 - 64).

According to the given question.

We have a right angle triangle.

Here, we have to find the measure n.

Since, the given triangle is divided into two right angle triangles.

Now in the right angled triangle with the side measure m, n and 8.

By the Pythagoras theorem we can say that

m^2 = 8^2 + n^2

⇒ m^2 = 64 + n^2

⇒ m^2 -64 = n^2 ...(i)

⇒ n = √(m^2 - 64)

Hence, the measure of side n is √(m^2 - 64).

Find out more information about measure here:

https://brainly.com/question/14360843

#SPJ1

The value of x in the given expression 8 = x over 2.5 minus 6 is (-1/8)^(2/7)

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

given expression is :

-8 = x^(2.5-6)

Now, solving for x by transferring power of x to -1/8 that will become -8 to the power (2/7) :

-8 = x^(-3.5)

-8 = 1/x^(3.5)

x^(3.5) = -1/8

x^(7/2) = -1/8

x = (-1/8)^(2/7)

Therefore, the value of x in the given expression is (-1/8)^(2/7)

check and know more about EXPONENT here :

https://brainly.com/question/15993626

#SPJ1

Answer:

45 (-3 i + 2)

Step-by-step explanation:

Simplify the following:

(8 + 7) (-sqrt(-81) + 6)

Hint: | Evaluate 8 + 7.

8 + 7 = 15:

15 (-sqrt(-81) + 6)

Hint: | Express sqrt(-81) in terms of i.

sqrt(-81) = sqrt(-1) sqrt(81) = i sqrt(81):

15 (6 - i sqrt(81))

Hint: | Factor common terms from -(i sqrt(81)) + 6.

Factor 3 out of 6 - 9 i giving 3 (2 - 3 i):

15×(3 (-3 i + 2))

Hint: | Multiply 15 and 3 together.

15×3 = 45:

Answer: 45 (-3 i + 2)

The value of f-¹(x) for the function f(x) = (x + 2)/x is y = 2/(x-1).

The inverse of a function f is denoted by f-¹ and it exists only when f is both one-one and onto function. An inverse function in mathematics is function which "reverses" the another function.

For example, If function f which is applied to input a gives result b and then applying inverse of the function g to b, it gives result a and vice versa.

It can be written as:

f(a) = b if and only if g(b) = a or, f⁻¹ (b) = a

In order to calculate the inverse of function f(x) = (x + 2)/x just simply swap the x and y, and solve the resulting equation for the x.

So, we have f(x) = (x + 2)/x, swap the variable x by y, we get

f(x) = (y + 2)/y ............(1)

Now, solving the above equation x = y+2/y for y.

⇒y = 2/(x-1)

∴ The value of f-¹(x) for the function f(x) = (x + 2)/x is y = 2/(x-1).

Learn more in depth about the inverse function at https://brainly.com/question/14391067

#SPJ9

Step-by-step explanation:

supplementary angles are two angles that are together 180°.

they don't have to be adjacent, but the fact that the 2 angles can be placed "randomly" in a scenario is rarely used, except maybe for intersection angles of a line with parallel lines.

a linear pair are 2 angles that are truly adjacent (neighbors, touching each other) that are together 180°.

so, our original statement is

if 2 angles are supplementary, then the angles are a linear pair.

that by itself is (as described) not true in all cases. angles can be non-adjacent (and therefore not a linear pair) and still be supplementary.

so the original statement is false.

(a)

the inverse is

if 2 angles are not supplementary, then the angles are not a linear pair.

that is true.

as per the definition, linear pair angles are a true subset of supplementary angles (every linear pair is a pair of supplementary angles, but not every pair of supplementary angles is a linear pair).

so, if they are not a member of the set of supplementary angles, they cannot be a member of a subset either.

(b)

the converse is

if 2 angles are a linear pair, then the angles are supplementary.

that is true.

because linear pair angles are a true subset of supplementary angles. if something is a member of a subset, it is also a member of any superset.

(c)

the contrapositive is

if 2 angles are not a linear pair, then the angles are not supplementary.

that is false.

as described, linear angles are a true subset of supplementary angles. so, an element can be outside a subset but still inside a superset.

like in the original example, 2 angles across intersected parallel lines can be supplementary, but they are not a linear pair.

The equation of the linear least-squares regression line is given by:

[tex]\sqrt[3]{\text{Volume}} = -0.006 + 0.64(\text{Time})[/tex]

A linear function is modeled by the following rule:

y = mx + b

In which:

For this problem, we have that:

From the table, we get that:

Water is being poured into the cone, hence the volume is increasing and the slope is positive. The equation will be given by:

[tex]\sqrt[3]{\text{Volume}} = -0.006 + 0.64(\text{Time})[/tex]

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

Answer:

X+Y-3

Step-by-step explanation:

I don’t know what X/Y is, but “three less than” means you need to subtract 3 from the sum of X+Y

The missing number so that the equation has no solutions is -7/3.

The equation given is represented by:

x+1 = -2x–6

It should be noted that we just have to find the value of x. This will be

x+1 = -2x–6

x + 2x = -6 - 1

3x = -7

x = -7/3

Therefore, the value of x is -7/3.

Learn more about equations on:

brainly.com/question/2972832

#SPJ1

The inequality that can be used to determine the minimum number of sets of glasses Bella bought is x ≥ 20.8.

She needs to order some new supplies for the restaurant where she works.

The restaurant needs at least 503 glasses.

Each set on sale contains 10 glasses.

The inequality that can be used to determine the minimum number of sets of glasses Bella bought is as follows:

Therefore,

x =  number of sets

Hence,

295 + 10x ≥ 503

10x ≥ 503 - 295

10x ≥ 208

x ≥ 208 / 10

x ≥ 20.8

Therefore, the inequality that can be used to determine the minimum number of sets of glasses Bella bought is x ≥ 20.8.

learn more on inequality here: https://brainly.com/question/25906273

#SPJ1

Applying the inscribed angle theorem, we have:

1. Measure of inscribed angle EDF = 53°

2. m<DCB = 92°

3. m<VWS = 37°

In a circle, the measure of an inscribed angle is equal to half of the measure of the measure of the intercepted arc, based on the inscribed angle theorem. In order words, the measure of the intercepted arc in a circle, is always twice the measure of the inscribed angle in the circle.

1. Measure of intercepted arc EF = 106° [given]

Measure of inscribed angle EDF = 1/2(measure of arc EF) [inscribed angle theorem]

Substitute

Measure of inscribed angle EDF = 1/2(106)

Measure of inscribed angle EDF = 53°

2. m<DCB + m<DQB = 180° [opposite angles of a cyclic quadrilateral add up to 180 degrees]

Substitute

m<DCB + 88 = 180

m<DCB + 88 - 88 = 180 - 88

m<DCB = 92°

3. m<VWS = 1/2(measure of arc VS) [inscribed angle theorem]

Substitute

m<VWS = 1/2(74)

m<VWS = 37°

Learn more about the inscribed angle theorem on:

https://brainly.com/question/3538263

#SPJ1

Answer:

The third one from the left

Step-by-step explanation:

Answer:

[tex]f(x) = x^2 + 6x+9[/tex]

Step-by-step explanation:

[tex]y=(x+3)^2 = x^2 + 6x+9[/tex]

[tex]y-y_{1} = m (x-x_{1})[/tex]

is the linear equation format for point slope here

(-1, 0) would lie on the line

Answer:  118

Step-by-step explanation:

The two figures' angles are identical so the angles would have the same measurements