Can some plz answer this and give explanation? :) How many unit cubes are required to create a larger cube with edge length of 3 units?

1. Annual percent increase in rent is basically just a percentage of the rent increased each year.

2. Heater: Use fire places, or lower the amount of air conditioning usage so it's not so cold.

Electricity: Turn off ceiling fans and lights when not used, or only allow the essential things to use electricity.

Water: Not leave faucets or showers running, or no bathtubs which prevents baths.

3. The couple could save $450 in one year because 3000 divided by 0.15 which is the 15%, equals to the total amount saved at $450.

4. Groceries/everyday essentials, Gas money, taxes, pay off loans.

The value of tan(Q) = 3/4, given that ΔQRS ~ ΔXYZ. Computed using properties of similar triangles. Hence, the second option is the best choice.

According to the properties of similar triangle, the corresponding sides of similar triangles are in proportion.

In the question, we are given that ΔQRS ~ ΔXYZ.

By properties of similar triangles, we know that:

QR/XY = RS/YZ = SQ/ZX.

From this, we can show that:

RS/SQ = YZ/ZX ...(i).

We are asked to find the value of tan(Q).

By trigonometric ratios, we know that:

tan(Q) = Perpendicular/Base = RS/SQ.

From (i), we know that RS/SQ = YZ/ZX.

From figure, we know that YZ = 9, and ZX = 12.

Thus, YZ/ZX = 9/12 = 3/4.

Thus, tan(Q) = RS/SQ = YZ/ZX = 3/4.

Hence, the value of tan(Q) = 3/4, given that ΔQRS ~ ΔXYZ. Computed using properties of similar triangles. Hence, the second option is the best choice.

The question is incomplete. The complete question can be seen in the figure.

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With a master's in statistics will get a starting salary of at least $71,000. The correct answer to the question is option (c) 0.978.

According to the Bureau of Labor Statistics (BLS), the median annual wage for statisticians was $92,030 as of May 2020. However, it is important to note that starting salaries can vary depending on factors such as industry, location, and level of experience.

A Master's degree in Statistics can lead to various career paths such as data analyst, biostatistician, statistician, and actuary. The starting salary for these positions can range from $50,000 to $90,000 per year. However, Glassdoor reports that the national average salary for a statistician with a Master's degree is $94,000 per year.

It is worth noting that salary ranges and averages can vary depending on the source of information and the methodology used to collect data. Some sources may report salaries based on self-reported data from employees or employers, while others may use data from surveys or job postings.

In conclusion, while it is difficult to predict an exact starting salary for someone with a Master's degree in Statistics, it is likely that they will earn at least $71,000 per year based on available data.

Therefore, the correct answer is option (c) 0.978.

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The nights required by Quinn in order to knit a total of 70 centimeters of the scarf is equal to 35.

The number of nights required by Quinn in order to knit a total of 70cm of the scarf can be calculated using multiplication. Multiplication can be described as one of the four basic arithmetic operations in which we perform the repeated addition of the same number or value. This problem can be solved using cross-multiplication as follows;

2 nights = 4 cm of scarf

x nights = 70 cm of scarf

70 × 2 = 4(x)

140 = 4(x)

x = 140 / 4

x = 35

Therefore, Quinn will have to spend 35 nights knitting in order to knit a total of 70 centimeters of the scarf.

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The Cartesian equation for the curve is x² - 9y² = 36.

To eliminate the parameter and find a Cartesian equation for the curve defined by the parametric equations x = 6 cosh(t) and y = 2 sinh(t), we can use the hyperbolic identity cosh²(t) - sinh²(t) = 1.

(a) Eliminating the parameter:

Start by squaring both equations:

x² = 36 cosh²(t)

y² = 4 sinh²(t)

Now, divide x² by 36 and y² by 4:

x²/36 = cosh²(t)

y²/4 = sinh²(t)

Next, substitute cosh²(t) with (x²/36) and sinh²(t) with (y²/4) using the hyperbolic identity:

(x²/36) - (y²/4) = 1

Multiply through by 36 to get rid of the fraction:

x² - 9y² = 36

Therefore, the Cartesian equation for the curve is x² - 9y² = 36.

(b) Sketching the curve and indicating the direction:

The equation x² - 9y² = 36 represents a hyperbola centered at the origin, with the x-axis as the transverse axis and the y-axis as the conjugate axis.

The curve starts at the point (6, 0) when t = 0 and moves towards positive y-values as the parameter t increases. As t increases, the curve traces the upper branch of the hyperbola. The direction of the curve can be indicated by an arrow pointing upwards.

The curve starts at the point (6, 0) and moves upwards along the upper branch of the hyperbola as the parameter increases.

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Answer:

Step-by-step explanation:

The equation of the axis of symmetry for the given function is x = 1.

To find the equation of the axis of symmetry for the function f(x) = -4x² + 8x - 28, we can use the formula:

x = -b / (2a)

where "a" and "b" are coefficients in the quadratic equation ax² + bx + c.

In this case, a = -4 and b = 8. Plugging these values into the formula, we get:

x = -8 / (2*(-4))

x = -8 / (-8)

x = 1.

The axis of symmetry for a quadratic function in the form of \(f(x) = ax^2 + bx + c\)  can be found using the formula x = -b / (2a).

In the case of the given quadratic function f(x) = -4x² + 8x - 28, the coefficient of \(x^2\) is a = -4 and the coefficient of x is b = 8.

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The LSE (Least Squares Estimator) of β in the mixed-effects model is BLUE (Best Linear Unbiased Estimator).

The LSE of β can be obtained by minimizing the sum of squared residuals in the mixed-effects model. To show that it is BLUE, we need to prove two properties: linearity and unbiasedness.

Linearity: The LSE of β is a linear estimator. This means that it can be expressed as a linear combination of the observed data, Y. In the given model, Y = Xβ + ZA + ε,

where ε is the random error term. By minimizing the sum of squared residuals, the LSE of β can be written as β_hat = (X'X)^(-1)X'Y, which is a linear function of Y.

Unbiasedness: The LSE of β is an unbiased estimator. This means that, on average, the estimated value of β obtained from multiple samples will be equal to the true value of β. In the given model, ε is a random vector with mean 0, which implies that E(ε) = 0.

Additionally, A is a random-effect vector with mean 0, which implies that E(A) = 0. Since A and ε are independent, E(ZA) = ZE(A) = 0. Therefore, E(Y) = Xβ, indicating that the expected value of Y is equal to the true value of the linear predictor Xβ. Consequently, the LSE of β is an unbiased estimator.

By satisfying both the linearity and unbiasedness properties, the LSE of β in the mixed-effects model is considered BLUE. This implies that the LSE is not only a linear estimator but also provides the minimum variance among all linear unbiased estimators.

The BLUE property ensures that the LSE is an efficient estimator for β, allowing for precise inference and estimation of the unknown parameter.

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Answer:

107%

Step-by-step explanation:

because if we look at the x-axis, Discount (%)

and look at 35 which is between 30 and 40

and start going up we get near 100

so

107%

or?

we use the two points and with that we find the slope first

\(\frac{y2-y1}{x2-x1}\)

plug in (20,62) and (10,32)

\(\frac{32-62}{10-20}\)

equals

\(\frac{-30}{-10}\)

simplify to 3

then we use

y - y1 = m (x - x1)

y - 62 = 3 (x - 20)

y - 62 = 3x - 60

add 60 from both sides

y - 2  = 3x

add 2 to both sides

y=3x+2

then plug in 35

y= 3(35) + 2

which is

107

Answer:

Step-by-step explanation:

Writing Algebraic Expressions

Writing Algebraic Expressions

Group workProblem: Ms. Jensen likes to divide her class into groups of 2. Use mathematical symbols to represent all the students in her class.

Solution: Let g represent the number of groups in Ms. Jensen's class.

Then 2 · g, or 2g can represent "g groups of 2 students".

In the problem above, the variable g represents the number of groups in Ms. Jensen's class. A variable is a symbol used to represent a number in an expression or an equation. The value of this number can vary (change). Let's look at an example in which we use a variable.

Example 1: Write each phrase as a mathematical expression.

Phrase Expression

the sum of nine and eight 9 + 8

the sum of nine and a number x 9 + x

The expression 9 + 8 represents a single number (17). This expression is a numerical expression, (also called an arithmetic expression). The expression 9 + x represents a value that can change. If x is 2, then the expression 9 + x has a value of 11. If x is 6, then the expression has a value of 15. So 9 + x is an algebraic expression. In the next few examples, we will be working solely with algebraic expressions.

Example 2: Write each phrase as an algebraic expression.

Phrase Expression

nine increased by a number x 9 + x

fourteen decreased by a number p 14 - p

seven less than a number t t - 7

the product of 9 and a number n 9 · n   or   9n

thirty-two divided by a number y 32 ÷ y   or    

In Example 2, each algebraic expression consisted of one number, one operation and one variable. Let's look at an example in which the expression consists of more than one number and/or operation.

Example 3: Write each phrase as an algebraic expression using the variable n.

Phrase Expression

five more than twice a number 2n + 5

the product of a number and 6 6n

seven divided by twice a number 7 ÷ 2n   or    

three times a number decreased by 11 3n - 11

bonusExample 4: A small company has $1000 to distribute to its employees as a bonus. How much money will each employee get?

Solution: Let e represent the number of employees in the company. The amount of money each employee will get is represented by the following algebraic expression:

electricianExample 5: An electrician charges $45 per hour and spends $20 a day on gasoline. Write an algebraic expression to represent his earnings for one day.

Solution: Let x represent the number of hours the electrician works in one day. The electrician's earnings can be represented by the following algebraic expression:

Solution: 45x - 20

Answer:

Click on insert, click graph, then make it to what u need

Step-by-step explanation:

hope this helps

The three sets of polar coordinates that correspond to the rectangular coordinates (-2, 0) are:

(2, 0)

(2, -1.571)

(2, -1.571)

Rectangular coordinates of (-3, 0) and (-2, 0) correspond to points on the negative x-axis.

To convert these rectangular coordinates into polar coordinates, we can use the following formulas:

r = sqrt(x^2 + y^2)

theta = atan(y/x)

where r is the distance from the origin to the point, and theta is the angle that the line connecting the point to the origin makes with the positive x-axis.

For (-3, 0), we have:

r = sqrt((-3)^2 + 0^2) = 3

theta = atan(0/(-3)) = atan(0) = 0

So one set of polar coordinates for (-3, 0) is (3, 0).

Now, let's find two more sets of polar coordinates that correspond to the same rectangular coordinates:

Set 2:

r = sqrt((-3)^2 + 0^2) = 3

theta = atan((2*pi)/(-3)) = atan(-2.0944) = -1.175

Set 3:

r = sqrt((-3)^2 + 0^2) = 3

theta = atan((4*pi)/(-3)) = atan(-4.1888) = -1.963

So the three sets of polar coordinates that correspond to the rectangular coordinates (-3, 0) are:

(3, 0)

(3, -1.175)

(3, -1.963)

For (-2, 0), we have:

r = sqrt((-2)^2 + 0^2) = 2

theta = atan(0/(-2)) = atan(0) = 0

So one set of polar coordinates for (-2, 0) is (2, 0).

Now, let's find two more sets of polar coordinates that correspond to the same rectangular coordinates:

Set 2:

r = sqrt((-2)^2 + 0^2) = 2

theta = atan((2*pi)/(-2)) = atan(-3.1416) = -1.571

Set 3:

r = sqrt((-2)^2 + 0^2) = 2

theta = atan((4*pi)/(-2)) = atan(-6.2832) = -1.571

So the three sets of polar coordinates that correspond to the rectangular coordinates (-2, 0) are:

(2, 0)

(2, -1.571)

(2, -1.571)

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The expressions for dz/du and dz/dv are as follows:

dz/du = 4x siny

dz/dv = -6y cosx

To find the expressions for dz/du and dz/dv, we need to differentiate the given function z = 2x^2 - 3y with respect to u and v, respectively.

1. dz/du:

Since u = x^2 siny, we can express z in terms of u by substituting x^2 siny for u in the original function:

z = 2u - 3y

Now, we differentiate z with respect to u while treating y as a constant:

dz/du = d/dx (2u - 3y)

      = 2(d/dx (x^2 siny)) - 0 (since y is constant)

      = 2(2x siny)

      = 4x siny

Therefore, dz/du = 4x siny.

2. dz/dv:

Similarly, we express z in terms of v by substituting 2y cosx for v in the original function:

z = 2x^2 - 3v

Now, we differentiate z with respect to v while treating x as a constant:

dz/dv = d/dy (2x^2 - 3v)

      = 0 (since x^2 is constant) - 3(d/dy (2y cosx))

      = -6y cosx

Therefore, dz/dv = -6y cosx.

In summary, the expressions for dz/du and dz/dv are dz/du = 4x siny and dz/dv = -6y cosx, respectively.

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Answer:

Part A is P

Step-by-step explanation:

Answer:

Jim will be paid $150 or 30% to his account.

Answer:

option 1: \(\frac{40}{9}\)

Step-by-step explanation:

tan = \(\frac{opposite}{adjacent}\)

tan A = \(\frac{40}{9}\)

Answer:

Option 3

Step-by-step explanation:

So remember the formula for sine, cosine, and tangent: it's SOH CAH TOH. SOH is sine: opposite over hypotenuse. Cosine is CAH: adjacent over hypotenuse. Lastly, the one we're using today is tangent, TOH: opposite over hypotenuse. So for tan A, you look at the opposite side of angle A, which is side BC; the length is 40. Then you look at the hypotenuse, which is side AB; the length is 41. So, you get 40/41, which is option 3 as the answer. Hope this helps!

Answer:

49

Step-by-step explanation:

10 to 23 is 13, and 23 to 36 is 13. so you just add 13 to 36 to get 49

Jackie pays $130 monthly for her group health insurance.

To find out how much Jackie pays for her group health insurance monthly, we need to calculate 40% of the annual cost. Given that the annual cost is $3,900 and her company pays 40% of that, we can calculate the amount Jackie pays.

First, we find the company's contribution by multiplying the annual cost by 40%: $3,900 × 0.40 = $1,560. This is the amount the company pays towards Jackie's health insurance.

To determine Jackie's monthly payment, we divide her annual payment by 12 (months in a year) since she pays monthly. So, Jackie's monthly payment is $1,560 ÷ 12 = $130.

Therefore, Jackie pays $130 per month for her group health insurance. This calculation takes into account the company's contribution of 40% of the annual cost, resulting in an affordable monthly payment for Jackie.

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Answer:

He would have to do 13 rides.

Step-by-step explanation:

If he initially pays $7, which lets him pay only $1 for each ride, so when he spends $20, he would have done 13 rides.

There are 13 rides will Luka need to ride in order to spend $20.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Luka buys a special pass to a fair for $7 that allows him to go on every ride for $1 each.

Here, Luka need to ride in order to spend $20.

Let number of rides = x

So, We can formulate;

⇒ $7 + $1x = $20

⇒ 7 + x = 20

Solve for x as;

⇒ x = 20 - 7

⇒ x = 13

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Step-by-step explanation:

the third option is the right answer

Answer:

yes 3rd option

Step-by-step explanation:

because I know its the 3rd option

Answer:

The absolute value is 8

Step-by-step explanation:

the absolute value of a number is always going to be positive. if you have a negative number and need the absolute number, you just put the opposit of the number.

Answer:

The absolute value is 8

Answer:

$31.56

Step-by-step explanation:

We know

Skateboard cost: $37.50

20% off, so 80% left = 0.8

5.2 tax + 100% = 105.2% = 1.052

So, we have the equation

37.50 (0.8) (1.052) = $31.56

So, Petra will pay $31.56 for the skateboard deck in all!

Answer:

how many miles did they walk

Step-by-step explanation:

you didn't put the full question

Answer:

y -2 = -11/14 (x - 7)

Step-by-step explanation:

y2 - y1 / x2 - x1

2 - (-9) / -7 - 7

11/-14

-11/14

Point-slope intercept:

y -2 = -11/14 (x - 7)

Statement 1: Some cats like turkey, the form is I, the subject class is Cats, and the predicate class is Turkey, statement 2: There are burglars coming in the window, the form is E, the subject class is Burglars, and the predicate class is Not coming in the window and statement 3: Everyone will be robbed, the form is A, the subject class is Everyone, and the predicate class is Being robbed.

The given categorical propositions and their forms are as follows:

(1) Some cats like turkey - Form: I:

Subject class: Cats,

Predicate class: Turkey

(2) There are burglars coming in the window - Form: E:

Subject class: Burglars,

Predicate class: Not coming in the window

(3) Everyone will be robbed - Form: A:

Subject class: Everyone,

Predicate class: Being robbed

In the first statement:

Some cats like turkey, the form is I, the subject class is Cats, and the predicate class is Turkey.

In the second statement:

There are burglars coming in the window, the form is E, the subject class is Burglars, and the predicate class is Not coming in the window.

In the third statement:

Everyone will be robbed, the form is A, the subject class is Everyone, and the predicate class is Being robbed.

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Part A:

Since Juanita had at first $25

Since she earns $11 per hour

Then her total earning in x hours is

Since she needs at least $58 to buy new shoes

At least means greater than or equal, then the inequality should be

Part B:

Let us solve it by subtracting 25 from each side

Divide each side by 11

Then the answer is the 3rd choice