simplify. write your answer in standard form.
-4-8x+2x-15

Answer:

120 in ³

Step-by-step explanation:

Volume is

Length x width x height

4x10x3=120

a.) The number of pounds of empty cans needed by the class is 200 pounds.

b.) The number of empty cans needed by the class to collect are 5486 cans.

The books will cost a total amount of $ 50.

If $ 0.25 per pound is the current price for aluminium at the recycling centre, the number of pounds the class will have to collect is found by dividing the total amount needed by cost per pound is,

⇒ 50/0.25 = 200

b.) Six empty cans weigh 3.5 ounces.

1 pound = 16 ounces

200 pounds = 200 × 16 = 3200 number of ounces

3200/3.5 = 914.29

914.29 × 6 = 5485.7 cans ≈ 5486 cans

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The disjunction of -p or -q can be written as (-p) v (-q). So, we have to find the truth value of (-p) v (-q). So, the compound statement for the disjunction of -p or -q is (-p) v (-q), and its truth value is true.

using the following statements: p: There are 14 inches in 1 foot.

q: There are 3 feet in 1 yard.

Solution: We know that 1 foot = 12 inches, which means that there are 14 inches in 1 foot can be written as 14 < 12. But this statement is false because 14 is not less than 12. Therefore, the negation of this statement is true, which gives us (-p) as true.

Now, we know that 1 yard = 3 feet, which means that there are 3 feet in 1 yard can be written as 3 > 1. This statement is true because 3 is greater than 1. Therefore, the negation of this statement is false, which gives us (-q) as false.

Now, we can use the values of (-p) and (-q) to find the truth value of (-p) v (-q) using the disjunction rule. The truth value of (-p) v (-q) is true if either (-p) or (-q) is true or both (-p) and (-q) are true. Since (-p) is true and (-q) is false, the disjunction of (-p) v (-q) is true. Hence, the compound statement for the disjunction of -p or -q is (-p) v (-q), and its truth value is true.

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the sum of two odd integers will always be resulted in an odd digit.

Odd numbers are entire numbers that can't be isolated precisely into matches. Odd numbers, when separated by 2, leave a rest of 1. , 3, 5, , 9, 11, , 15  are consecutive odd numbers.

These are added together to get n + n+1, or 2n+1. Since +1 make it odd, 2n is even. Any two successive integer sums are hence odd. According to the solution is "2n + (2n + 1) = 4n +1."

Even numbers result from the addition of two fractions, but still only digits result from the addition of one odd number with one even number. In order to only receive an odd number, add one odd as well as one even.

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Not enough information is provided to determine the x-coordinate.

To determine the x-coordinate of the first car location at 8:30 PM, we need more information about the specific context or scenario. The x-coordinate is typically used to represent the horizontal position of an object on a coordinate plane. Without knowing the initial position or any information about the movement or velocity of the car, it is not possible to determine the exact x-coordinate at a specific time.

If additional details are provided, such as the initial position of the car or any information related to its movement, we can use that information to calculate the x-coordinate at 8:30 PM. However, without any specific context or given data, it is not possible to provide a meaningful answer to this question.

Therefore, without further information, it is not possible to determine the x-coordinate of the first car location at 8:30 PM.

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Answer: 15+0.65x=80

Step-by-step explanation:

After solving, the height of the cylinder is 6 meters.

The surface area of a cylinder is 24π m².

The distance around the base of the cylinder is 3π meter.

The diameter of a base of the cylinder is 4 meter.

Now the radius of the cylinder = diameter/2

The radius of the cylinder = 4/2

The radius of the cylinder = 2 meter.

The formula of surface area of cylinder:

S = 2πrh

From the question:

2πrh = 24π

Now putting the value of r

2π × 2 × h = 24π

4πh = 24π

Divide by 4π on both side, we get

h = 6

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The complete question is:

The surface area of a cylinder is 24π m². The distance around the base of the cylinder is 3π meter and the diameter of a base of the cylinder is 4 meter. What is the height of the cylinder? Enter your answer, in a simplified fraction, in the box.

Answer:

Step-by-step explanation: w = weeks

15w + 24 = 249

15w = 249 - 24

15w = 225

w = 225 / 15

w = 15

with that information she can save fifteen dollars a week for 15 weeks and be able to buy the camera.

Answer:

45

Step-by-step explanation:

15x3=45

Answer:$12$

Step-by-step explanation:

Answer:

1d=25m

30d=?

cross mutiply

30×25=750messages

Answer:

The equation is m = 25d

Ashley would send 750 text messages after 30 days.

Step-by-step explanation:

The equation is y = mx + b

We see that each day the number of text increase by 25, so our equation is

m = 25d

Now we ask how many text messages Ashley would send in 30 days. We need to put 30 in for d and solve it.

m = 25(30)

m = 750 text messages

So, Ashley would send 750 text messages in 30 days.

The probability that a single marble chosen at random from the jar is yellow or green is 7/10, or 0.7.

The probability that a single marble chosen at random from the jar is yellow or green can be found by adding the probability of choosing a yellow marble to the probability of choosing a green marble.

There are a total of 1 + 3 + 2 + 4 = 10 marbles in the jar. The probability of choosing a yellow marble is 4/10 = 2/5, and the probability of choosing a green marble is 3/10. Therefore, the probability of choosing a yellow or green marble is:

P(yellow or green) = P(yellow) + P(green) = 4/10 + 3/10 = 7/10

So the probability that a single marble chosen at random from the jar is yellow or green is 7/10, or 0.7.

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Answer:

35% of 800

35% = 0.35

0.35 × 800 = 280

Your answer is 280 tickets ; 0.35 × 800

Answer:

25(7)=175

Step-by-step explanation:

hope this help :3

The clock that shows the time Mr. Walsh left his house to go to the store would be 3:42 pm.

Mr. Walsh's journey consisted of driving from his house to the store, shopping for 28 minutes, and then driving back home. The total time for his journey would be:

10 minutes (driving to the store) + 28 minutes (shopping) + 10 minutes (driving back home) = 48 minutes

If Mr. Walsh arrived home at 4:30 pm, and we subtract the 48 minutes it took for his entire journey, we can determine the time he left his house to go to the store:

4:30 pm - 48 minutes = 3:42 pm

Therefore, the clock that shows the time Mr. Walsh left his house to go to the store would be 3:42 pm.

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A person weighing 173 pounds can burn 10.7 calories per minute.

The given equation is ŷ=2.2+0.05x.

To solve this question, we can use the equation given, ŷ=2.2+0.05x. We can insert the known weight value, 173 pounds, to calculate the anticipated calories burned per minute.

y = 2.2 + 0.05x

y = 2.2 + 0.05 × 173

y = 10.7

Therefore, a person weighing 173 pounds can burn 10.7 calories per minute.

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"Your question is incomplete, probably the complete question/missing part is:"

By observing a set of data values, Thomas used a calculator for the weight (in pounds) and predicted the number of calories burned per minute to get an equation for the least-squares line: ŷ=2.2+0.05x

Based on the information gathered by Thomas, select the statement that is true.

a) A person weighing 149 pounds can burn 9.8 calories per minute.

b) A person weighing 134 pounds can burn 8.9 calories per minute.

c) A person weighing 125 pounds can burn 8.3 calories per minute.

d) A person weighing 173 pounds can burn 10.7 calories per minute.

Answer:

A person weighing 134 pounds can burn 8.9 calories a minute.

Step-by-step explanation:

Since η² ≈ 0.33 and not 0.50, the statement "If an analysis of variance produces SS between = 20 and SS within = 40, then η² = 0.50" is false.

ANOVA, or Analysis of Variance, is a statistical method used to compare the means of two or more groups to determine if there are any statistically significant differences between them. It is commonly used in experimental and observational studies to analyze the variance between group means and within-group variability.

ANOVA tests the null hypothesis that the means of the groups are equal, against the alternative hypothesis that at least one of the group means is different. It calculates the F-statistic, which compares the between-group variability to the within-group variability. If the F-statistic is large enough and exceeds a critical value, it indicates that there is evidence to reject the null hypothesis and conclude that there are significant differences between the group means.

We can determine if η² = 0.50 is true or false by calculating the effect size η² using the provided SS between and SS within values.
η² = SS_between / (SS_between + SS_within)
η² = 20 / (20 + 40)
η² = 20 / 60
η² = 1/3 ≈ 0.33
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True, the eta-squared value is indeed 0.50, indicating that 50% of the total variance is accounted for by the between-group variation.

The formula to calculate eta squared (η2) is:
η2 = SSbetween / (SSbetween + SSwithin)
If SSbetween = 20 and SSwithin = 40, then:
η2 = 20 / (20 + 40) = 0.5
Therefore, η2 = 0.50, which means that 50% of the total variance in the dependent variable can be attributed to the independent variable (or factor) being analyze. The statement "If an analysis of variance produces SS between = 20 and SS within = 40, then η 2 = 0.50" is true. To determine η 2 (eta-squared), you'll need to calculate the proportion of total variance explained by the between-group variation. This can be done using the formula η 2 = SS between / (SS between + SS within). In this case, η 2 = 20 / (20 + 40) = 20 / 60 = 0.50. Therefore, the eta-squared value is indeed 0.50, indicating that 50% of the total variance is accounted for by the between-group variation.

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A probability distribution is a mathematical function that describes the likelihood of different outcomes occurring in an uncertain or random event.

The mean of the distribution of sample means is 32.4 ft.

When we take multiple random samples from a population, each sample will have its own mean. The distribution of these sample means is called the sampling distribution. The mean of the sampling distribution of sample means is equal to the population mean. This property is known as the Central Limit Theorem.

In this case, we are assuming that the height of the trees follows a normal distribution with a population mean (μ) of 32.4 ft and a population standard deviation (σ) of 89.8 ft.

When we measure a random sample of 191 trees, we calculate the mean of that sample. We repeat this process multiple times, each time taking a different random sample of 191 trees. The distribution of these sample means will follow a normal distribution, with the mean equal to the population mean.

The mean of the distribution of sample means, also known as the sample mean, is equal to the population mean.

In this case, the population mean is μ = 32.4 ft.

Since the sample mean is equal to the population mean, the mean of the distribution of sample means is also 32.4 ft. This implies that, on average, the heights of the random samples of 191 trees will be centered around 32.4 ft.

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Answer:

The answer is 1/6.

Step-by-step explanation:

5/6+1/6= 6/6 or 1

Answer:

81 - 19 = 62 ÷ 4 = 15.5 days (?)

Answer: Your question doesn't make any sense

Step-by-step explanation:

Answer:

6(9-4x)

Step-by-step explanation:

Factor 6 out of 54-24x, or group and factor out the GCF. Hope this helps!

Answer:

I need a picture in order to do this haha

Answer:

we'll call "a number" x

10 less than that is: x-10

10 less than that is: x-1010 less than a number is more than 30: x-10 > 30

10 less than that is: x-1010 less than a number is more than 30: x-10 > 30we can solve for x as well: x > 40

Step-by-step explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

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The NPV is positive, it is worth taking the Investment.

Net Present Value (NPV) is an assessment method that determines the attractiveness of an investment. It is a technique that determines whether an investment has a positive or negative present value.

This method involves determining the future cash inflows and outflows and adjusting them to their present value. This helps determine the profitability of the investment, taking into account the time value of money and inflation.The formula for calculating NPV is:

NPV = Σ [CFt / (1 + r)t] – CIWhere CFt = the expected cash flow in period t, r = the discount rate, and CI = the initial investment.

The given problem can be solved by using the following steps:

Calculate the present value (PV) of the expected cash inflows:

Year 1: $28,000 / (1 + 0.08)¹ = $25,925.93Year 2: $28,000 / (1 + 0.08)² = $24,009.11Year 3: $28,000 / (1 + 0.08)³ = $22,173.78Total PV = $72,108.82

Calculate the PV of the initial investment: CI = $7,000 / (1 + 0.08)¹ + $35,000 / (1 + 0.08)²CI = $37,287.43Calculate the NPV by subtracting the initial investment from the total PV: NPV = $72,108.82 – $37,287.43 = $34,821.39

Since the NPV is positive, it is worth taking the investment.

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Answer:

Well if the total equals 180-degrees you have to make an assumption or let someone smarter just do it for you. also that box means it's a 90-degree angle so the rest is cut in half; what times three and seven would equal to 90-degrees? I can't do much anymore my brain hurts lol

Step-by-step explanation:

Hope this helps :)

The solution is Option C.

The total amount of earnings of Sondra after 5 years is $ 169,113

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the annual salary of Sandra be A = $ 30,000

Now , the percentage increase in salary = 6 %

So , the equation will be

First year :

The increase in first year =  annual salary of Sandra + percentage increase in salary x annual salary of Sandra

The increase in first year = 30000 + ( 6/100 ) x 30000

                                        = 30000 + 1800

                                        = $ 31,800

Second year :

The increase in second year =  increase in first year + percentage increase in salary x increase in first year

The increase in second year = 31800 + ( 6/100 ) x 31800

                                        = 31800 + 1908

                                        = $ 33,708

Third year :

The increase in third year =  increase in second year + percentage increase in salary x increase in second year

The increase in third year = 33708 + ( 6/100 ) x 33708

                                        = 33708 + 2022.48

                                        = $ 35,730.48

Fourth year :

The increase in fourth year =  increase in third year + percentage increase in salary x increase in third year

The increase in fourth year = 35730.48 + ( 6/100 ) x 35730.48

                                        = 35730.48 + 2143.8288

                                        = $ 37,874.3088

Now , the equation is

The total earnings of Sondra is = First year salary + second year salary + third year salary + fourth year salary

The total earnings of Sondra is = 30000 + 31,800 + 33,708 + 35,730.48 + 37,874.3088

The total amount earnings of Sondra is = $ 169,112.7888

Therefore , the total amount earnings = $ 169,113

Hence , The total amount of earnings of Sondra after 5 years is $ 169,113

Answer:

C)  $199,797

Step-by-step explanation:

Adding 7% of a number to the number is the same as multiplying the number by 1.07

First year: $45,000

Second year: $45,000 × 1.07 = $48,150

Third year: $48,150 × 1.07 = $51,520.50

Fourth year: $51,520.50 × 1.07 = $55,126.94

Total = $199,797.43

Answer: C)  $199,797

Answer:

170 kg. of parsnips are left

Step-by-step explanation:

Given:

850 kg. of parsnips

30 % to the local market

50 % to a local supermarket

Solution:

First, add the two percentages.

30 + 50 = 80%

That means 80 % of parsnips mass go to the markets.

Now let's find the mass of delivered parsnips.

Change 80% to decimal form.

80% = 0.8

Now multiply it by 850 kg.

850 x 0.8 = 680

The delivered parsnips mass is 680 kg.

Now to find the mass of parsnips left, subtract 680 to 850

850 - 680 = 170 kg.

170kg. of parsnips are left.

the number of students who use none of the three browsers is the difference between the total number of students in the class (85) and the number of students who use at least one of the three browsers: 85 - 100 = 10.

From the given information, we know that 20 students use only Chrome, 15 students use only Safari, and 15 students use only Internet Explorer. Since none of the students use all three browsers, the number of students using only one browser is 20 + 15 + 15 = 50.

Now, let's calculate the number of students who use multiple browsers. The total number of students using Chrome is 45, and 20 of them use only Chrome. Therefore, the number of students using Chrome along with other browsers is 45 - 20 = 25. Similarly, the number of students using Safari or Internet Explorer along with other browsers is also 25.

To find the number of students who use at least one of the three browsers we will use principle of inclusion-exclusion formula, we add the number of students using only one browser and the number of students using multiple browsers: 50 + 25 + 25 = 100.

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