Which is the graph of y = - root(7, x) - 8 ?

Answer:

B.) 33°

Step-by-step explanation:

The size of x in degrees is 33°.

If you bisect P from center O, you can create a right triangle and use the triangle sum rule to find ½ the measure of x°.

Answer:

750 N

Step-by-step explanation:

As the seesaw is balanced, the torque on both ends must be equal.
Weight of the student is 250 N at 2.4 m from the axis
Let the father's weight be x N, at 0.8 m from the axis
= fd
So, 250 * 2.4 = 0.8 * x
Solving for x, the father's weight is 750 N

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Answer:

I think I might have them from last year?

Step-by-step explanation:

Answer:

Step-by-step explanation:

b. discrete quantitative data

b. discrete quantitative data

The number of tires on an automobile is an example of discrete quantitative data because it represents a countable and finite value. It is a quantitative measure as it involves numerical values (e.g., 4 tires, 6 tires, etc.) and it is discrete because it cannot take on fractional or continuous values. In this case, the number of tires is a discrete variable with distinct and separate values that can be counted and measured. It is not qualitative data as it does not involve descriptive or subjective characteristics, and it is not descriptive statistics as it does not involve summarizing or describing data. It is also not inferential statistics as it does not involve drawing conclusions from data relationships or making inferences about a larger population.

The value of a makes quadrilateral tuvw a parallelogram is 1.

What is the quadrilateral bisect?

If a quadrilateral is a parallelogram, then its diagonals bisect each other. If the diagonals of a quadrilateral bisect each other, then it is a parallelogram.

It should be noted that a quadrilateral simply means a four sides polygon that has four edges and four vertices, when the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram

We have,

tx=13a and vx=a+12,

To find the value of a that makes quadrilateral tuvw a parallelogram.

As the diagonal of quadrilateral bisects each other:

tx = vx

13a = a+12,

13a - a  = 12

a  = 12/12

a = 1,

Hence, the value of a makes quadrilateral tuvw a parallelogram is 1.

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a. To determine the probabilities associated with different service lives, we can use the properties of the normal distribution. Given that the mean service life is six years with a standard deviation of one-half year, we can calculate the probabilities as follows:

(1) Probability of service lives of at least five years:

We need to calculate the area under the normal curve to the right of five years. Using the Z-score formula, we find the Z-score corresponding to five years: Z = (5 - 6) / 0.5 = -2. We can then look up the corresponding probability in a standard normal distribution table or use statistical software to find the probability associated with a Z-score of -2. This gives us the probability of service lives of at least five years.

(2) Probability of service lives of exactly six years: Since the service life follows a normal distribution, the probability of exactly six years is zero since it is a continuous distribution. We can assign a very small positive probability to approximate "exactly" six years. (3) Probability of service lives of seven and one-half years: Similarly, we calculate the Z-score corresponding to seven and one-half years: Z = (7.5 - 6) / 0.5 = 3. We find the probability associated with a Z-score of 3 to determine the probability of service lives of seven and one-half years or longer. b. If the manufacturer offers service contracts of four years, we want to find the percentage of televisions that fail from wear-out during this period. We can calculate this by finding the area under the normal curve to the left of four years. Using the Z-score formula, we find the Z-score corresponding to four years: Z = (4 - 6) / 0.5 = -4. The corresponding probability gives us the percentage of televisions expected to fail during the four-year service period.

c. To achieve an expected wear-out rate of 2 percent or 5 percent, we need to determine the service period corresponding to these rates. We can use the Z-score formula in reverse to find the Z-score that corresponds to the desired wear-out rate. From there, we can calculate the corresponding service period by rearranging the Z-score formula and substituting the desired wear-out rate and the given mean and standard deviation values.

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Answer: You will pay $629.30 for the pair of shoes after the 30% discount is applied.

Step-by-step explanation:

If Supershoes is offering a 30% discount on the marked price of all sports shoes, and a pair of shoes is marked at $899, then the discount on the shoes will be:

Discount = 30% of $899

Discount = 0.3 * $899

Discount = $269.70

The discount of $269.70 is subtracted from the marked price of the shoes to get the discounted price that you will pay:

Discounted price = Marked price - Discount

Discounted price = $899 - $269.70

Discounted price = $629.30

its A  ma am

i know this because i did it

Juana would have to pay approximately $29.40 in interest for the $10,686.00 loan over a 20-day period, assuming an annual interest rate of 5.79%.

The interest Juana would have to pay in 20 days can be calculated using the formula:

Interest = Principal × Interest Rate × Time

In this case, the principal amount is $10,686.00 and the interest rate is 5.79% per annum. To calculate the interest for 20 days, we need to convert the time to a fraction of a year. Since there are 365 days in a year, the time in years would be 20/365.

Using the formula and substituting the values:

Interest = $10,686.00 × 0.0579 × (20/365)

Calculating this expression, we find that the interest amount Juana would have to pay in 20 days is approximately $29.40.

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Answer:

the answer is option D. Uranium - 235

To solve the equation 3a² = -4a + 15 by factoring, we need to rewrite it in the form of a quadratic equation, set it equal to zero, and then factor it. The solutions to the equation 3a² = -4a + 15 are a = 5/3 and a = -3.

The equation 3a² = -4a + 15 can be rearranged as 3a² + 4a - 15 = 0. Now we can factor the quadratic expression.

To factor the quadratic expression, we need to find two numbers that multiply to give -45 and add up to +4. The numbers that satisfy these conditions are +9 and -5. So, we can write the equation as (3a - 5)(a + 3) = 0.

Setting each factor equal to zero, we have two possible solutions: 3a - 5 = 0 or a + 3 = 0.

Solving these equations, we find a = 5/3 or a = -3.

Therefore, the solutions to the equation 3a² = -4a + 15 are a = 5/3 and a = -3.

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The correct formula that defines an arithmetic sequence is option d) tn = 5n + 14.

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms remains constant. In other words, each term can be obtained by adding a fixed value (the common difference) to the previous term.

In option a) tn = 5 + 14, the term does not depend on the value of n and does not exhibit a constant difference between terms. Therefore, it does not represent an arithmetic sequence.

Option b) tn = 5n² + 14 represents a quadratic sequence, where the difference between consecutive terms increases with each term. It does not represent an arithmetic sequence.

Option c) tn = 5n(n+14) represents a sequence with a varying difference, as it depends on the value of n. It does not represent an arithmetic sequence.

Option d) tn = 5n + 14 represents an arithmetic sequence, where each term is obtained by adding a constant value of 5 to the previous term. The common difference between consecutive terms is 5, making it the correct formula for an arithmetic sequence.

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Answer:

Constant of proportionality k = 7/4 if we take the proportionality relationship as ... number of minutes ∝ number of cupcakes Bor

number of minutes = k . (number of cupcakes)

Step-by-step explanation:

If a variable x is directly proportional to another variable y indicated by
x ∝ y

Then x = k.y where k is the constant of proportionality

Letting x be the number of cupcakes and y the number of minutes

number of cupcakes = k .  (number of minutes)
k = (number of minutes) / (number of cupcakes )
Here k, the constant of proportionality tells you how many many minutes it takes to ice 1 cupcake

For 40 cupcakes it takes 70 minutes. So k = 70/40 = 7/4

For 28 cupcakes it takes 49 minutes so for 1 cupcake it takes 49/28 = 7/4 so again that is the constant of proportionality

k = 7/4 given that number of minutes ∝ number of cupcakes

=>  number of minutes =  k. number of cupcakes

Note if we had x = number of cupcakes and y = number of minutes then k = 4/7 which is the number of cupcakes that can be iced in 1 minute

So one has to be careful to state what is proportional to what

Answer:

0.1

Step-by-step explanation:

Just take 24/24 which is 1 and move the decimal one place to the left because there is an extra 0 on the denominator

The lifecycle cost of the clothes washer is $1,032.68.

The lifecycle cost of the clothes washer is $1,104.20. Here's how to compute it:Given:Energy consumed by the clothes washer = 198 kWhPrice of the washer = $389Lifetime of the washer = 14 yearsEnergy price in the city = 8 cents per kWhMaintenance cost = $17 per yearFormula: Lifecycle cost = (purchase price + (energy price x energy consumed) + (maintenance cost x lifetime)) / lifetimeLet's substitute the given values in the formula:Lifecycle cost = ($389 + ($0.08 x 198 kWh) + ($17 x 14)) / 14Lifecycle cost = ($389 + $15.84 + $238) / 14Lifecycle cost = $642.84 / 14Lifecycle cost = $45.92 (rounded to two decimal places).

The lifecycle cost of the clothes washer is $45.92 per year. To find the total lifecycle cost, multiply it by the lifetime of the washer:Total lifecycle cost = $45.92 x 14Total lifecycle cost = $643.68Add the initial cost of the washer to get the final answer:Final answer = $643.68 + $389Final answer = $1,032.68 (rounded to two decimal places)

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Answer:

The volume of the composite figure is 162.7 in^3

Step-by-step explanation:

Here, we have a cylinder placed over a cube

The volume of the cube is L^3

With L being the length of its side = 5

The volume of the cube is 5^3 = 125 in^3

The volume of the cylinder is pi * r^2 * h

with r = 2 in and h = 3 in

The volume of the cylinder = 22/7 * 2^2 * 3 = 37.699 = 37.7 in*3

Total volume is thus;

37.7 + 125 = 162.7 in^3

Answer:

Step-by-step explanation:

a=180 -75

a=105 degree

Answer:  The estimated value is:  " 2.1 " .

__________________________________

Step-by-step explanation:

__________________________________

We are asked to "estimate" :

 5 2/11  -  3/ 2/18 ;

 Note:  Consider:  " 5 2/11 " ;  

 Note that:  "2/11" is close to:  "2/10" ; which can be expressed as a decimal value:  "0.2 " ;

So, consider this value:  "5 2/11 ";  as estimated:  " 5.2 " .

Now, consider:  " 3  2/18 " ;

Note that :  "2/18" can easily be reduced to:  "1/9 ";

               Since:  "(2/18)" = "(2÷2) / (18÷2) " =  "1/9 " ;

Note that "1/9" is close to "1/10" ; which can be expressed as a decimal value:  "0.1 ".

 So, consider:  "3 2/18 " ; as estimated:  " 3.1 " .

__________________________________

So:  To estimate:  " 5 2/11  -  3 2/18 " ;

__________________________________

Use the following:  "5.2  - 3.1 " ;

__________________________________

    5.2

 -  3. 1

__________________________________

  " 2.1 "

___________________________________

The estimated value is:  " 2.1 " .

___________________________________

Hope this is helpful to you!

___________________________________

When testing the null hypothesis with an alpha value of 0.05, the critical value will be larger than if you were testing with an alpha value of 0.01.

If you are testing the null hypothesis with an alpha value of 0.05, the critical value will be smaller than if you were testing the alpha value of 0.01. This is because a smaller alpha value means a more stringent test of significance, which requires stronger evidence to reject the null hypothesis.

Therefore, the critical value is larger for a smaller alpha value to reflect the higher level of evidence required for rejection. Conversely, a larger alpha value allows for a less stringent test of significance, requiring weaker evidence to reject the null hypothesis, which results in a smaller critical value.

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Answer:

Step-by-step explanation:

\(\angle 2,\angle AEG, \angle GEB\)

Answer:

The area should be 132 ft

Step-by-step explanation:

Answer:

X= 19/4

Step-by-step explanation:

Answer:

4,75

Step-by-step explanation:

x-9:(-4)=7

-9:(-4) = +2,25

x+2,25=7 / -2,25

x= 7-2,25

x= 4,75

Answer:

$1560

Step-by-step explanation:

x = salary

y = weekly

255 = 1/12 x + 125

3060 = x + 1500

x = 1560

For the transformation at -78 °C, appropriate reagents include lithium aluminum hydride (LiAlH4) and diethyl ether.

At -78 °C, certain chemical reactions require the use of specific reagents to achieve the desired transformation. One commonly used reagent is lithium aluminum hydride (LiAlH4), which acts as a strong reducing agent. It is capable of reducing various functional groups, such as carbonyl compounds, to their corresponding alcohols.

Diethyl ether is typically employed as a solvent to facilitate the reaction and ensure efficient mixing of the reactants. Researchers often utilize this low temperature for reactions involving sensitive or reactive intermediates, as it helps control the reaction and prevent unwanted side reactions.

The use of LiAlH4 and diethyl ether provides a reliable combination for achieving the desired transformation at this temperature, enabling chemists to manipulate and modify compounds in a controlled manner.

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The association between parental divorce and worse outcomes is well-documented, it is important to consider these potential confounding factors and individual differences before making causal claims.

The association between children whose parents divorce when they are young and worse outcomes, on average, compared to children whose parents stay together may be correlational rather than causal for several reasons.

Firstly, there could be other factors, such as parental conflict or financial difficulties, that are associated with both divorce and worse outcomes for children. These confounding variables could be responsible for the observed correlation.

Secondly, it is also possible that the effects of divorce on children's outcomes vary based on individual and contextual factors.

For example, children from divorced families may experience different levels of social support or have different coping mechanisms, which could influence their outcomes.

Therefore, while the association between parental divorce and worse outcomes is well-documented, it is important to consider these potential confounding factors and individual differences before making causal claims.

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