Hello again! I need help with this question!

Answer:

48% of the ppulation would be incorrect

Step-by-step explanation:

goodluck finding  a answer tho

Answer:

\(\frac79\)

Step-by-step explanation:

\(\frac{-2}{3} \cdot-1\frac{1}{6}\)

Let's convert the mixed number to an important fraction.

-1 1/6 = -7/6

Now multiply:

\(\frac{-2}{3} \cdot \frac{-7}{6} = \\\\\\\frac{-2\cdot-7}{3\cdot6} = \\\\\\\frac{14}{18} = \frac79\)

-Chetan K

Answer:

√34

Step-by-step explanation:

it would be radical 34.

A significance level of 0.10, we have enough evidence to conclude that the new copy machines have a significantly faster mean repair time compared to the older model.

To test if the new copy machines are faster to repair, we can set up the following null and alternative hypotheses:

Null Hypothesis (H₀): The mean repair time for the new copy machines is the same as the mean repair time for the older model.

Alternative Hypothesis (H₁): The mean repair time for the new copy machines is less than the mean repair time for the older model.

Let's perform a one-sample t-test to test these hypotheses. The test statistic is calculated as:

t = (sample mean - population mean) / (sample standard deviation / √(sample size))

Given:

Population mean (μ) = 93 minutes

Sample mean (\(\bar x\)) = 86.8 minutes

Sample standard deviation (s) = 14.6 minutes

Sample size (n) = 18

Significance level (α) = 0.10

Calculating the test statistic:

t = (86.8 - 93) / (14.6 / sqrt(18))

t = -6.2 / (14.6 / 4.24264)

t ≈ -2.677

The degrees of freedom for this test is n - 1 = 18 - 1 = 17.

Now, we need to determine the critical value for the t-distribution with 17 degrees of freedom and a one-tailed test at a significance level of 0.10. Consulting a t-table or using statistical software, the critical value is approximately -1.333.

Since the test statistic (t = -2.677) is less than the critical value (-1.333), we reject the null hypothesis.

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Answer:

Well since we don't know what X or Y is, then we can't answer this question.

Step-by-step explanation:

The correct option is:D. 120This amount satisfies Roberto's requirement of leaving a tip of at least 15% but no more than 18% and includes the meal cost, tip, and taxes.

To determine the total amount that Roberto will pay, including the tip and taxes, we need to calculate the tip and add it to the pre-tax cost of the meal.

Given that the meal cost is $96.50 before the 7% tax is added, the tax amount can be calculated as follows:

Tax amount = 0.07 * $96.50 = $6.755 (rounded to two decimal places)

Next, let's calculate the minimum and maximum tip amounts based on Roberto's requirement of at least 15% but no more than 18% of the pre-tax cost of the meal:

Minimum tip amount = 0.15 * $96.50 = $14.48 (rounded to two decimal places)

Maximum tip amount = 0.18 * $96.50 = $17.37 (rounded to two decimal places)

Now, let's calculate the total amount including the tip and taxes:

Minimum total amount = $96.50 + $6.755 + $14.48 = $117.735 (rounded to two decimal places)

Maximum total amount = $96.50 + $6.755 + $17.37 = $120.625 (rounded to two decimal places)

Among the given options, the total amount of $117 is not possible since it falls below the minimum total amount. Therefore, the correct option is:

D. 120

This amount satisfies Roberto's requirement of leaving a tip of at least 15% but no more than 18% and includes the meal cost, tip, and taxes.

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Answer:

4−2x<−3

Step-by-step explanation:

check:

now --- 4°

after 1 hr --- 2°

after 2 hrs--- 0°

after 3 hrs--- -2°

after 4 hrs--- -4°

so between 3 and 4 hrs it will reach -3°

4-2x < -3

-2x < -7

x > 3 1/2

Data;

n=31

x=33

s=2

Critical value

Use t-score with degrees of freedom (df) of n-1

df=31-1=30

Critial value: 2.45726

Multiply the critical value by the standard deviation (s):

Answer:

3

Step-by-step explanation:

When creating flowcharts, we represent a decision with a diamond shape. Correct option is d.

The diamond shape is used to indicate a point in the flowchart where a decision or choice needs to be made. The decision typically involves evaluating a condition or checking a criterion, and the flow of the program can take different paths based on the outcome of the decision.

The diamond shape is commonly associated with decision-making because its sharp angles resemble the concept of branching paths or alternative options. It serves as a visual cue to identify that a decision point is being represented in the flowchart.

Within the diamond shape, the flowchart usually includes the condition or criteria being evaluated, and the two or more possible paths that can be followed based on the result of the decision. These paths are typically represented by arrows that lead to different parts of the flowchart.

Overall, the diamond shape in flowcharts helps to clearly depict decision points and ensure that the logic and flow of the program are properly represented. Thus, Correct option is d.

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The given probability of having six girls in a six-child family is 0.015625. To determine the method used to compute this probability, we need to analyze the information provided.

The Classical method is based on theoretical assumptions and probabilities calculated using mathematical principles. It assumes equally likely outcomes and relies on counting favorable outcomes over the total number of possible outcomes.

The Empirical method involves gathering data from observations or experiments to estimate probabilities. It relies on observed frequencies and relative frequencies to compute probabilities. However, the given probability does not suggest a sample or data collection, making it unlikely that the Empirical method was used.

The Subjective method involves assigning probabilities based on personal judgment or opinions. Individuals subjectively evaluate the likelihood of an event based on their own beliefs or knowledge.

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Answer:

Zero

Step-by-step explanation:

This is called additive inverse

: a number that when added to a given number gives zero the additive inverse of 4 is −4 

so the answer will be zero

0 is the answer

mark me as Brainliest plz

Answer:

Option A 26cm3

Step-by-step explanation:

have a great day

pls mark brainlist

84500 reams of paper are the total amount the two companies sell in the past five years.

65500 is the amount that Company B performed better than company A.

A company can be defined as the part in which the main aim or goal is to earn a profit. This was to generate the income that they will be having in the firm. There are various employees that are present in the company and work towards a common goal.

The Amount that is made by company A is

\(7.5 \times 10000\)

\(=75000\)

The amount of paper manufactured by company B is

\(= 9.5 \times 1000\)

\(= 9500\)

A) The total that is made by both companies in 5 years will be

\(= \text{Company A + Company B}\)

\(= 75000 + 95000\)

\(= 84500\)

B) Company B made better products as compared to Company A

\(= \text{Company B - Company A}\)

\(=75000 - 9500\)

\(=65500\)

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Answer:

Step-by-step explanation:

You want the sum and difference of 7.5×10^4 and 9.5×10^3.

Numbers are most conveniently added or subtracted in scientific notation when the multipliers have the same exponent. For this we can rewrite Company B's volume as ...

  9.5×10^3 = 0.95×10^4

  total sales = 7.5×10^4 + 0.95×10^4 = 8.45×10^4 = 84,500

  difference in sales = A -B = 7.5×10^4 -0.95×10^4 = 6.55×10^4 = 65,500

__

Additional comment

You can enter the numbers "as is" in a calculator or spreadsheet and format the output in whatever form you need.

Answer:

she makes $6.676 an hour

Step-by-step explanation:

402.17-93.26-41.86=267.05/40=6.67625

Answer:

Distance in 1 hr=8.5m

Therefore,

Distance in three hour=8.5×3

=25.5m

First, let’s look at the total increase - it’s either 100% (you added 150,000 to 150,000) or 50% (half of the 300,000 came in the last decade). Most often increases are described by the percentage of the starting amount, but the other convention can sometimes be used as well. For small percentages around 5% or lower, the two values will be almost the same, but in this case it makes a big different.

Answer:

-4.35% or -0.0435

Step-by-step explanation:

Plugging the values into a table on desmos, it clearly follows an exponential equation as shown by the equation of best fit. Therefore, the relationship is exponential.

a. The probability that a failure is due to an induced substance is 0.013487 or 1.35% approximately.

b. Probability of a failure due to disease or infection= 44%.

a. Determine the probability that a failure is due to an induced substance.

The total percentage of heart failures that are caused by outside factors is 19%, of which 73% are due to induced substances.

Therefore, the probability that a failure is due to an induced substance = 73/100*19/100= 0.013487 or 1.35% approximately.

b. Determine the probability that a failure is due to disease or infection.

The total percentage of heart failures that are caused by natural occurrences is 81%, of which disease accounts for 27% and infection (e.g., staph infection) accounts for 17%.

Therefore, the probability that a failure is due to disease or infection = 27/100 + 17/100= 0.44 or 44% approximately.

Probability of a failure due to induced substance= 1.35% (approx.)Probability of a failure due to disease or infection= 44% (approx.)

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Answer:

£11.50

Step-by-step explanation:

7litres of petrol cos t £3.50. The cost of 1 liter will be:

= £3.50/7

= £0.50

The cost of 23 litres of petrol of the same grade will be:

= £0.50 × 23

= £11.50

Answer:

First Picture ⇒ [B] a = -2, b = 1, and c = -5

Second Picture ⇒ First step: Identify a = 1, b = 3, c = -4

                          \(x=\frac{-3\pm \sqrt{3^2-4\cdot \:1\cdot \left(-4\right)}}{2\cdot \:1}\)

                             \(x=\frac{-3\pm 5\sqrt{25}}{2}\)

                           \(x=\frac{-3\pm \:5}{2}\)

                        \(x=\frac{-3+5}{2},\:x=\frac{-3-5}{2\c}\)

Third Picture ⇒ Missing Info

Fourth Picture ⇒ [A] \(x=-\frac{5}{2},\:x=-3\)

Fifth Picture ⇒ \(x=\frac{5\pm\sqrt{1} }{2}\)

Step-by-step explanation:

-------------------------------------------------------------------------------------------------------------

Identify the a,b, and c-values for this equation:

y = -2x²  + x -5  

Quadratic Formula:

ax²+bx+c=0

−2x²+1x−5=0

a = -2, b = 1, and c = -5

-------------------------------------------------------------------------------------------------------------

Order the steps for solving this equation using the quadratic formula.

x²  + 3x - 4 = 0

Solving to see what are the steps:

First step: Identify a = 1, b = 3, c = -4

\(x=\frac{-3\pm \sqrt{3^2-4\cdot \:1\cdot \left(-4\right)}}{2\cdot \:1}\)

\(x=\frac{-3\pm 5\sqrt{25}}{2}\)

\(x=\frac{-3\pm \:5}{2}\)

\(x_1=\frac{-3+5}{2\cdot \:1},\:x_2=\frac{-3-5}{2\cdot \:1}\)

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Use the quadratic formula to find the solution set for 2x² + 15 = -11x.

Add 11x to both sides:

2x² + 15+11x = -11x+11x

Simplify

2x² + 11x+15 = 0

Now solve with quadratic formula..

\(x_{1,\:2}=\frac{-11\pm \sqrt{11^2-4\cdot \:2\cdot \:15}}{2\cdot \:2}\)

\(x_{1,\:2}=\frac{-11\pm \:1}{2\cdot \:2}\)

\(x_1=\frac{-11+1}{2\cdot \:2},\:x_2=\frac{-11-1}{2\cdot \:2}\)

\(x=-\frac{5}{2},\:x=-3\)

Hence, [A] \(x=-\frac{5}{2},\:x=-3\)

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Suppose you are solving a quadratic equation and this is your work so far...

x  ²  - 5x + 6 = 0

Thus, we have:

\(x=\frac{-\left(-5\right)\pm \sqrt{\left(-5\right)^2-4\cdot \:1\cdot \:6}}{2\cdot \:1}\)

\(x=\frac{-\left(-5\right)\pm \:1}{2\cdot \:1}\)

\(x=\frac{5\pm\sqrt{1} }{2}\)

\(x_1=\frac{-\left(-5\right)+1}{2\cdot \:1},\:x_2=\frac{-\left(-5\right)-1}{2\cdot \:1}\)

\(x=3,x=2\)

-------------------------------------------------------------------------------------------------------------

Kavinsky

If in a rectangular-prism, the length is doubled, width is tripled and height is same, then the volume of new rectangular prism will be 6 times the original-prism.

The "Volume" of a 3-D object is defined as the amount of space that object occupies in three-dimensional space. It is a measure of the total capacity or size of the object

Volume of a rectangular prism is ⇒ Volume = Length × Width × Height,

If the length of the rectangular prism is doubled, the new length would be 2 times the original length.

If the width is tripled, the new width would be 3 times the original width, and

If the height remains the same, it would be the same as the original height.

Let the original length be = "L",  width be = "W", and height be = "H",

So, New Length = 2L , New Width = 3W, New Height = H (remains unchanged),

So, volume of new rectangular prism is :

⇒ New Volume = (New Length)×(New Width)×(New Height),

⇒ (2L) × (3W) × H

⇒ 6LWH

Therefore, volume of "new-rectangular prism' is 6 times volume of  original rectangular prism.

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Answer:

The equations are: \(x+ y = 30\)  and  \(x = 3y\).

Step-by-step explanation:

We are given that Brittany uses the rowing machine and the stair machine at the gym for an exercise program.

Let the time spend by Brittany on the stair machine be represented by the variable \(x\).

and the time spend by Brittany on the rowing machine be represented by the variable \(y\).

Now, there are two conditions stated by her trainer;

                           \(x + y = 30 \text{ minutes}\)

                                \(x = 3y\)

So, the equations are: \(x+ y = 30\)  and  \(x = 3y\).

These equations can be solved either using the substitution method or the elimination method.

Answer

put 1 on top and exo on bottom

Step-by-step explanation:

The probability of getting a poker hand (5 cards) containing 3 cards of one denomination and 2 cards of a second denomination or full house is 0.00144 or about 0.14%.

To calculate the probability of getting a full house, we need to first determine the total number of possible 5-card hands. This can be done using the formula for combinations:

C(52, 5) = 2,598,960

There are 2,598,960 possible 5-card hands from a standard deck of 52 cards.

Next, we need to count the number of ways to get a full house. To do this, we first choose the denomination for the 3-of-a-kind (there are 13 options), then choose which 3 of the 4 cards of that denomination to include (there are C(4,3) ways to do this), and finally choose the denomination for the pair (there are 12 remaining denominations to choose from), and which 2 of the 4 cards of that denomination to include (there are C(4,2) ways to do this). So the total number of full houses is:

13 * C(4,3) * 12 * C(4,2) = 3,744

Therefore, the probability of getting a full house is:

P(full house) = 3,744 / 2,598,960

≈ 0.00144

So the probability of getting a full house is approximately 0.00144 or about 0.14%.

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Let be x the amount the owner withdrew. Then, we can write and solve the following equation:

Answer

The owner withdraws $2,000.