Suppose your final grade in this class is determined by the following: test average 50%, Final Exam 20%, Homework/classwork 15%, Class Participation 15%. You have scored the following: on tests: {75, 82, 90, 75}.....Homework: {90, 100, 75, 87, 63}....Class Participation: {90}. What do you have to make on the Final Exam to have AT LEAST an 85 in this class?
A) 90
B) 92
C) 94
D) 96

Answer:

First one

Step-by-step explanation:

50 + 30 can be broken up into (10x5)+(10x3). You can simplify that into 10(5+3) because 10 x 5 =50 and 10x 3 = 30. :)

Answer:

10(5+3)

Step-by-step explanation:

If If you multiply 5 and 3 by 10 you'll get 50 + 30

In accordance with the above formula, the pythagorean ratio of (x - y) to cos(180 - x + y) is equal to -cos (y - x).

The branch of mathematics concerned with the calculation of specific functions of particular angles. There are six widely used angles-related trigonometric functions. Their relative names and acronyms include sum (sin), covariance (cos), curvilinear (tan), median (cot), subplots (sec), and cotangent (csc).

Inferring the cosine of a difference between two angles using trigonometry, we get:

cos(180 - x + y) = cos(180) cos(x - y) + sin(180) sin(x - y)

Since cos(180) = -1 and sin(180) = 0, The equation above may be made simpler to:

cos(180 - x + y) = -cos(x - y)

As a result, we have:

cos(180 - x + y) = -cos(x - y) = -cos(y - x)

The mathematical ratio of (x - y) to cos(180 - x + y) is hence -cos (y - x).

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The equation that is the inverse of 5y+4= (x+3)²+12 is y = -3 ± √(5x - 8)

From the question, we have the following parameters that can be used in our computation:

5y+4= (x+3)²+12

Swap x and y in the equation

So, we have

5x + 4= (y + 3)² + 12

When we make the vairiable y the subject, we have

y = -3 ± √(5x - 8)

Hence, the equation that is the inverse of 5y+4= (x+3)²+12 is y = -3 ± √(5x - 8)

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The algebraic rule for translating the figure 3 units left and 2 units up is (x-3, y+2).  Option B.

To translate a figure 3 units to the left and 2 units up, we need to adjust the coordinates of the figure accordingly. The algebraic rule that represents this translation can be determined by examining the changes in the x and y coordinates.

When we move a figure to the left, we subtract a certain value from the x coordinates. In this case, we want to move the figure 3 units to the left, so we subtract 3 from the x coordinates.

Similarly, when we move a figure up, we add a certain value to the y coordinates. In this case, we want to move the figure 2 units up, so we add 2 to the y coordinates.

Taking these changes into account, we can conclude that the algebraic rule for translating the figure 3 units left and 2 units up is (x-3, y+2). The x coordinates are shifted by subtracting 3, and the y coordinates are shifted by adding 2. SO Option B is correct.

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Answer:

the answer is b, c, d, a, respectively

Answer:

y = x + 60

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (20, 80) and (x₂, y₂ ) = (40, 100) ← 2 points on the line

m = \(\frac{100-80}{40-20}\) = \(\frac{20}{20}\) = 1

the line crosses the y- axis at (0, 60 ) ⇒ c = 60

y = x + 60 ← equation of line

To solve this problem we must apply rule of three.

The first time we have to obtain the area in acres:

1 ha --------- 2.5 ac

121.2 ha --------- y

So we have:

1 ha . y = 121.2 ha . 2.5 ac

y = 121.2 ha . 2.5 ac / 1 ha

y = 303 ac

Answer: the area of countryside burned by wildfire was 303 acres.

The x-intercept is 2 and the y-intercept is -6. The solution has been obtained by using the concept of intercepts.

What are intercepts?

An intercept is a location on the y-axis where the slope of the line crosses.

X and Y intercepts are the two main intercepts. The x-intercept and y-intercept of the line are the locations where it intersects the x and y axes, respectively.

We are given an equation as 3x - y = 6.

The x - intercept will be when y = 0.

So, on substituting y = 0, we get

⇒3x - y = 6

⇒3x - 0 = 6

⇒3x = 6

⇒x = 2

So, the x - intercept is 2.

Similarly, putting x = 0, we get

⇒3x - y = 6

⇒3(0) - y = 6

⇒-y = 6

⇒y = -6

So, the y - intercept is -6.

The graph for the same has been attached below.

Hence, the x-intercept is 2 and the y-intercept is -6.

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Answer:

64°

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

let the third angle be x , then

x + 90° + 26° = 180°

x + 116° = 180° ( subtract 116° from both sides )

x = 64°

the other angle is 64°

Answer:

0

Step-by-step explanation:

Since the line is horizontal and it isn't moving up or down and is in a still motion, the slope would be 0.

May I please have brainliest? Thank you!

The area of a circle is 1017.36 miles².

A circle is a two-dimensional figure with a radius and circumference of 2πr.

The area of a circle is πr².

We have,

Radius = 18 miles

Now,

The area of a circle = πr²

So,

= πr²

= 3.14 x 18 x 18

= 1017.36 miles²

Thus,

1017.36 miles².

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To accurately demonstrate the law of sines in a triangle, the student should start with the most basic or evident piece of knowledge and then add related statements to it. and complete the proof with a restatement of the law.

A mathematical proof is a sequence of assertions that logically demonstrate the truth of a law or a mathematical statement, implying the prepositions and conclusion.

How can you create a proof?

Writing down the rule or statement you want to establish is the usual format for proof.

By beginning with the simplest or most obvious justification and going on to more sophisticated justifications, add statements that demonstrate the phrase or law's validity.

Restate the law or draw the conclusion that it is true.

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Answer:

121

Step-by-step explanation:

firstly you arrange the numbers in ascending order the number in the middle is considered to be the median

Answer

0.3

Step-by-step explanation:

Answer:

should be 8.

Step-by-step explanation:

As the picture shows, FG is 8. It also shows that FG and GD are congruent, so they are both equal to 8

Answer:

Her average speed for the whole trip is of 42.8 miles per hour.

Step-by-step explanation:

We use the following relation to solve this question:

Speed is distance divided by time.

In this question:

Mrs. Padré drives 2 hours at an average speed of 35 miles per hour, which means that during these first two hours, she drove 2*35 = 70 miles.

Then she drives 3 hours at a speed of 48 miles per hour, which means that during these next three hours, she drove 3*48 = 144 miles.

In total, she drove 144 + 70 = 214 miles in 5 hours.

So her average speed for the whole trip is of 214/5 = 42.8 miles per hour.

Two-tailed test with α = .05, t = ± 2.447

One-tailed test with α = .05, t = 2.015

Two-tailed test with α = .01, t = ± 4.032

A one-tailed test is a statistical procedure in which the critical region of a distribution is one-sided, meaning that it may only be either higher than or less than a specific number. The alternative hypothesis will be adopted in place of the null hypothesis if the sample being tested falls inside the one-sided critical region.

To determine if the sample mean differs substantially from and from the population mean, a two-tailed hypothesis test is used. Testing the region beneath both tails (sides) of a normal distribution gives rise to the two-tailed test's name.

N = 6 of 5

Two-tailed test with α = .05, t = ± 2.447

One-tailed test with α = .05, t = 2.015

Two-tailed test with α = .01, t = ± 4.032

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Answer: It is similar to triangle ABC and has coordinates A′(8, −12), B′(4, −16), and C′(−20, 8)

Step-by-step explanation: Dilated triangles are never congruent, only similar (unless the dilation factor is exactly 1).

The coordinates of an image dilated about the origin are those of the pre-image multiplied by the dilation factor. For example,

 A' = 2A

 A'(8, -12) = 2×A(4, -6)

These facts are all you need to know to choose the correct answer (shown above).

Answer: 1/2

Step-by-step explanation:

I took the quiz!

\(g(x) = 4 |x| = x = 0\)

Answer:

the answer is 32z

Step-by-step explanation:

The probability that both players show rock in the first round is 1/9 or 0.1111 (rounded to four decimal places).

In rock, paper, scissors there are three possible outcomes for each player: rock, paper, or scissors. Assuming both players choose randomly and independently of each other, each player has a 1/3 chance of showing rock in the first round.

To find the probability that both players show rock in the first round, we can use the multiplication rule of probability for independent events. The multiplication rule states that the probability of the intersection of two independent events is the product of their probabilities.

Therefore, the probability that both players show rock in the first round can be calculated as follows:

P(both show rock) = P(player 1 shows rock) x P(player 2 shows rock) P(both show rock) = 1/3 x 1/3 P(both show rock) = 1/9

So the probability that both players show rock in the first round is 1/9 or approximately 0.111.

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The requried, Liam is 24 blocks away from his house.

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
A graph is shown, Liam left his house and drove to the store. He stopped and went inside. From there, he drove in the same direction until he got to the bank. He stopped and went inside the bank. Then he drove home. The graph below shows the number of blocks away from home Liam is x minutes after he left his house until he got back home.

In order to calculate Liam's distance after x = 15 minutes. Draw a perpendicular at x = 15 that intersects the curve. Since the line intersects the curve at y = 24. This implies that Liam is 24 blocks away from his house.

Thus, the requried Liam is 24 blocks away form his house.

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Given the statement:

2 minus twice a number.

Let's represent the sentence as an algebraic expression where the number is the letter x.

To represent the statement as an algebraic expression, we have:

A number is the letter x ==> x

• 2 minus twice the number ==> 2 - 2x.

Therefore, the algebraic expression that represents the sentence is:

2 - 2x

ANSWER:

2 - 2x

Relative interest refers to the comparison of interest rates between different financial instruments or investment opportunities. It allows individuals or investors to assess and evaluate the attractiveness of various options based on their potential returns.

1. Understand the basic concept: Interest is the cost of borrowing money or the return earned on invested funds. Relative interest involves comparing the interest rates of different financial instruments or investments to determine which one offers a more favorable return.

2. Identify the investment options: Start by identifying the different investment opportunities or financial instruments available. These can include savings accounts, certificates of deposit (CDs), bonds, stocks, or other investment vehicles.

3. Research interest rates: Research and gather information about the current interest rates offered by each investment option. This information can usually be found on financial websites, through financial institutions, or by consulting with a financial advisor.

4. Compare interest rates: Once you have the interest rates for each investment option, compare them side by side. Look for the differences in rates and identify which options offer higher or lower returns.

5. Assess risk and return: Consider the level of risk associated with each investment option. Higher returns often come with higher risk, so it's essential to evaluate the risk-reward tradeoff.

6. Make an informed decision: Based on the comparison of interest rates and the risk-reward assessment, make an informed decision on which investment option aligns with your financial goals and risk tolerance.

Always remember to consider your financial goals, risk tolerance, and consult with a financial advisor if needed.

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We know that z varies directly as √√x and inversely as y, which can be written as:

z = k(√√x)/y

where k is the constant of proportionality.

To find the value of k, we can use the values given when x = 25 and y = 7:

179 = k(√√25)/7

179 = k(5/7)

k = (179*7)/5

k = 250.6

Now we can use this value of k to find z when x = 64 and y = 4:

z = 250.6(√√64)/4

z = 250.6(2)/4

z = 125.3

Therefore, z ≈ 125.3 when x = 64 and y = 4.

The (g.f)(x)  of the two functions is:

(g.f) (x) = 6x + 37

A function is an expression that shows the relationship between the independent variable and the dependent variable.  A function is usually denoted by letters such as f, g, etc.

To find (g.f) (x), follow the steps below:

1. Substitute the value of f(x) into the function g(x).

2. Then simplify the expression.

That is:

f(x) = 3x+18

g(x) = 2x+1

Thus, we have:

(g.f) (x) = g(f(x))

(g.f) (x) = g(3x+18)

(g.f) (x) = 2(3x+18) + 1

(g.f) (x) = 6x+36 + 1

(g.f) (x) = 6x + 37

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Answer:

b = √( c² - a² )

Step-by-step explanation:

Equation to find the length of a right angle using pythagorean theoram is,

a ² +  b²  =  c²

According to the question you have find the length of b side.

For that, you have to make b as the subject in this equation.

Let us solve now.

a ² +  b²  =  c²

b²  =  c² - a²

b = √( c² - a² )

Therefore,

3rd Answer is correct.

Hope this helps you :-)

Let me know if you have any other questions :-)

Answer: 163

Step-by-step explanation:

We can begin by focusing on c on one side of the equation to help us solve it. Craig's height is 44 as a result.

A mathematical equation is a claim that two expressions are equivalent. It is divided into two sections, the left and the right, by the equal sign (=). Equation's left and right sides each have the potential to include variables, constants, and operators.

Finding the value(s) of the variable(s) necessary to make an equation true is the aim of equation solving. Algebraic techniques like simplification, substitution, and elimination can be used to solve equations.

An equation can be used to represent the following sentence:

c + 24 = 68

Craig's height is represented by c in this equation. The equal sign (=) is used to symbolise the phrase "is 68," while the phrase "is 24 more than Craig's height" is symbolised by c + 24. The formula for the problem can be solved to find the value of c, which corresponds to Craig's height.

We can begin by concentrating c on just one side of the equation in order to solve it:

c + 24 - 24 = 68 - 24

c = 44

Therefore, Craig's height is 44.

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