PLEASE HELP ME ANSWER THIS QUESTION

The zeros of the function defined by

h(x) = x³ – 4x² – 5x are x = 0, x = 5 and x = -1

The zeros of a function, also referred to as roots or x-intercepts, occur at x-values where the value of the function is 0. It is simply the values of x when f(x) is equal to 0.

For x = 0, we substitute 0 for x in the function h(x);

h(0) = (0)³ - 4(0)² - 5(0)

h(0) = 0

For x = 1, we substitute 1 for x in the function h(x);

h(1) = (1)³ - 4(1)² - 5(1)

h(1) = 1 - 4 - 5

h(1) = -8

For x = -5, we substitute -5 for x in the function h(x);

h(-5) = (-5)³ - 4(-5)² - 5(-5)

h(-5) = -125 - 100 +25

h(-5) = -200

For x = 5, we substitute 5 for x in the function h(x);

h(5) = (5)³ - 4(5)² - 5(5)

h(5) = 125 - 100 - 25

h(5) = 0

For x = -1, we substitute -1 for x in the function h(x);

h(-1) = (-1)³ - 4(-1)² - 5(-1)

h(-1) = -1 - 4 + 5

h(-1) = 0

Therefore, the values of x that makes the function h(x) = x³ – 4x² – 5x equal to zero are; 0, 5, and -1, they are the zeros of the function h(x).

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Answer:

Y = -½x + 3/2

Y = -3x + 5

Y = 1/4x - 3¼

Step-by-step explanation:

Parallel implies they have the same gradient

Perpendicular implies the gradient is a negative reciprocal of the other.

Answer:

The answer would be $40.

Step-by-step explanation:

You take the first 25% off and add it to the other 25% off, which would equal 50% off. After that you take 50% off for $80, which would be $40 because half of $80 is $40.

Answer:

-2.2

Step-by-step explanation:

-2.2*4=-8.8

Answer:

-2.2

Step-by-step explanation:

-8.8÷4=-2.2

Its not that hard....

Answer:BC=DF

Step-by-step explanation:

A) - The NEW VALUE in terms of the old value is 0.91  times the old value.

B) - The NEW VALUE of the HOUSE is:  299,000  *  0.91  =  $272,090

      A) - Calculate the Percentage of the Value Remaining After the Decrease

       B) - Calculate the NEW VALUE of the house

A) - The PERCENTAGE of the VALUE REMAINING AFTER the DECREASE

      100%  -  9%  =  91%

        0.91

B) - Calculate the NEW VALUE of the house:

NEW VALUE  =  OLD VALUE  *  REMAINING PERCENTAGE

NEW VALUE  =  299,000  *  0.91

A) - The NEW VALUE in terms of the old value is 0.91  times the old value.

B) - The NEW VALUE of the HOUSE is:  299,000  *  0.91  = $272,090

I hope it helps!

i removed my answer because it was wrong look at the other peoples answers

Answer: 213/40 or 5.325

Step-by-step explanation:

We can find common denominators for 8 1/5 and 2 7/8.

The Lowest Common Denominator for 8 1/5 and 2 7/8 is 40.

8 1/5 = 41/5 = 328/40.

2 7/8 = 23/8 = 115/40.

Now we can subtract.

328/40 - 115/40 = 213/40.

Therefore, the answer is 213/40 or 5 13/40.

Answer:

Add

-4 and 7.

3=11

Step-by-step explanation:

:)

Based on the line of best fit, the length of this catfish can be predicted to be 38 inches.

Given the following data:

A line of best fit is also referred to as a trend line and it can be defined as a statistical (analytical) tool that is used in conjunction with a scatter plot, in order to determine whether or not there's any correlation between a data.

From the graph of the data, we have the following linear equation:

\(y=\frac{1}{2} x+18\)

Substituting the value of x, we have:

\(y=(\frac{1}{2} \times 40 )+18\\\\y=20+18\)

y = 38 inches.

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Answer:

15x-10=5

x=1

Step-by-step explanation:

hope it helps bro

Answer:

x=1

Step-by-step explanation:

Answer:

negative 14 or -14

Step-by-step explanation:

8-12-10

= 8-22

= -14

Answer:

D

Step-by-step explanation:

mark me as brainliest?

Answer:

D. 3

Step-by-step explanation:

if you were trying to find the value of x, heres how i got the answer:

2/3x - 4 = -2

    - add 4 to both sides

2/3x = 2

     - divide both sides by 2/3

x = 3

The recipe that will make the juice the most “orangey” is Mix A 2 cups concentrate 3 cups water.

The recipe that will make the juice the least “orangey is Mix B 1 cups concentrate 4 cups water

In this situation, it's important to calculate the percentage for each mix in order to make it easier.

Mix A 2 cups concentrate 3 cups water. The percentage of orange will be:

= 2/3 × 100

= 66.7%

Mix B 1 cups concentrate 4 cups water. The The percentage of orange will be:

= 1/4 × 100

= 25%

Mix C 4 cups concentrate 8 cups water. The percentage of orange will be:

= 4/8 × 100

= 50%

Mix D 3 cups concentrate 5 cups water. The percentage of orange will be:

= 3/5 × 100

= 60%

Therefore, A is more orangey and B is least orangey.

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The Subtraction property of equality justifies the conclusion based on the given information.

The subtraction property of equality states that when the same number is subtracted from both sides of an equality, then the two sides of the equation still remain equal. In simple words, we can say that when a number is subtracted from one side of an equation, the same number must be subtracted from the other side of the equality.

if a = b

then;

a-c = b-c

We have:

If x + 5 = 15

By subtraction property of equality:

Subtract 5 from both sides we have;

x = 10

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The mean of sample a is equal to the mean of the population, it is likely that the sample is representative of the population, but it is not a guarantee of it.

If the mean of sample a is equal to the mean of the population, then it can be concluded that sample a is representative of the population. The mean of a sample is an estimate of the population mean, and if the sample mean is equal to the population mean, it indicates that the sample was randomly selected and is representative of the population.

However, it is important to note that the equality of the sample mean and the population mean does not guarantee that all other statistics, such as the standard deviation or the distribution shape, are equal. Sampling variability and the size of the sample can also impact the similarity between the sample and population statistics.

In conclusion, if the mean of sample a is equal to the mean of the population, it is likely that the sample is representative of the population, but it is not a guarantee of it. Further statistical analysis is needed to determine the representativeness of the sample and its similarity to the population.

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Answer will be 27.

Given,

3√81

Now, to solve the expression the squares of whole numbers and square roots for some numbers must be known.

For example, squares of

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

6² = 36

7² = 49

8² = 64

9² = 81
10² = 100

Square roots,

√100 = 10

√81 = 9

√64 = 8

√49 = 7

√36 = 6

√25 = 5

√16 = 4

√9 = 3

√4 = 2

√1 = 1

Now ,

3√81 = 3× 9

= 27.

Thus the value is 27.

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64 ^ (-2/3)

Rewrite 64 as 4^3

(4^3) ^ (-2/3)

Using the power rule a^b^c = a^(b*c)

4 ^(3*-2/3)

4^ -2

We know that a^ -b = 1/ a^b

1 / 4^2

1/16

Answer: 68.61/6 = 11.435

Answer:

the cost per or per liter,one kilogram,one pound e.t c is called pricing in mathematics

Answer:

Definition: Price is the value that is put to a product or service and is the result of a complex set of calculations, research and understanding and risk taking ability. A pricing strategy takes into account segments, ability to pay, market conditions, competitor actions, trade margins and input costs, amongst others.

Answer:

Option (4)

Step-by-step explanation:

Let x = \(\sqrt[4]{7}\)

\(\sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}\) = (x)(x)(x)(x)

                                 = \(x^{1+1+1+1}\)

                                 = x⁴

Now we substitute the value x = \(\sqrt[4]{7}\)

x⁴ = \((\sqrt[4]{7})^4\)

x⁴ = 7

Therefore, Option (4) will be the answer.

Answer:

\(\text{27}\)

Step-by-step explanation:

Given that :

\(\text{Dimension of poster board} = 1 \ \text{yd} \ \text{by} \ 1 \ \text{yd}\)

\(\text{Dimension of each poster board} = \dfrac{1}{3} \ \text{yd} \ \text{by} \ \dfrac{1}{9} \ \text{yd}\)

Number of poster signs that can be cut :

\(\text{Area of poster sign} = \dfrac{1}{3} \times \dfrac{1}{9} = \dfrac{1}{27} \ \text{yard}^2\)

\(\text{Area of poster board} = 1 \ \text{yard}^2\)

Number of poster signs that can be cut :

\(\dfrac{\text{Area of poster board}}{\text{Area of poster sign}}\)

\(1 \ \text{yard}^2\div (\dfrac{1}{27} ) \ \text{yard}^2\)

\(1 \div \dfrac{1}{27}\)

\(1 \times \dfrac{27}{1}\)

\(\bold{= 27 \ poster \ signs}\)

Answer:

8n-5

Step-by-step explanation:

Find the difference between the numbers, +8 so 8n then subtract the diffference from the first number so 3 - 8= -5

The expression will be 8n - 5

The probability that either event will occur is 0.33

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

Using the above as a guide, we have the following:

Total = A + B + C

So, we have

Total = 8 + 7 + 30

Evaluate

Total = 45

So, we have

P(A) = 8/45

P(B) = 7/45

For either events, we have

P(A or B) = 8/45 + 7/45

P(A or B) = 15/45

Evaluate

P(A or B) = 0.33

Hence, the probability that either event will occur is 0.33

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Hey!

For any graphing calculator problems I would recommend using desmos if your teacher allows it or getting a graphing calculator such as a ti-nspire :)

This way, it will be able to graph and get the answers quicker!

The answers to this question is (37.5,15) and (0,60). To find your answers when you graph always look for where the lines intersect. If the lines do not intersect then it is not one of your answer choices. (examples are below).

The 95% confidence interval for this situation is (0.95, 9.71).

What is the Standard deviation?

The standard deviation of a random variable, sample, statistical population, data set, or probability distribution is the square root of its variance.

The formula for Confidence Interval for Population Mean When Population Standard deviation is known

\(\bar{x} \pm Z_{a/2} * \frac{\sigma}{\sqrt{n} }\)

α for 95% confidence level = (100-95)/100 =0.05

\(Z_{\alpha/2}\) = 0.05/2=0.025

\(Z_{\alpha/2}\) = Z0.025 = 1.96

σ = 20

95% Confidence Interval for Population Mean When Population Standard deviation is known

\(\bar{x} \pm 1.96* \frac{20}{\sqrt{n} }\)

a.

n=70 ; \(\overline{x}=27\)

\(\bar{x} \pm 1.96* \frac{20}{\sqrt{n} }\)

27 ± 1.96 × (20/√70)

= 27 + 1.96 x 2.3905

= 27 + 4.6853 = (22.31.31.69)

(22.31, 31.69)

b.

n=150 ; \(\overline{x}=115\)

\(\bar{x} \pm 1.96* \frac{20}{\sqrt{n} }\)

= 115 + 1.96 x

= 115 +1.96 x 1.633 = 115 + 3.2007 = (111.8, 118.2)

(111.8, 118.2)

c.

n=80 ,  \(\overline{x}=18\)

\(\bar{x} \pm 1.96* \frac{20}{\sqrt{n} }\)

= 18 + 1.96 x 2.2361 = 18 + 4.3827 = (13.62.22.38) V8018+

(13.62, 22.38)

d.

n=80,  \(\overline{x}=5.33\)

\(\bar{x} \pm 1.96* \frac{20}{\sqrt{n} }\)

= 5.33 1.96 x 2.2361 = 5.33 4.3827 = (0.95, 9.71)

(0.95, 9.71)

e.

No. Since Sample sizes are large \((n\small \geq30)\) and randomly selected from the target population, the condition guarantees that the sampling distribution of \(\overline{x}\) is approximately normal.

Hence, the 95% confidence interval for this situation is (0.95, 9.71).

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Answer:

bruce

y = 1/4 x

Step-by-step explanation:

9 tiles per sq ft for felicia

so 1/9 sq ft per tile

so bruce covers more