PLEASE HELP ME WITH THESE 2 QUESTIONS!

Answer:

\(x=11\)

Step-by-step explanation:

So we have the equation:

\(\frac{-2-2x}{3} =-8\)

First, multiply both sides by 3. This cancels out the denominator:

\(3(\frac{-2-2x}{3} )=3(-8)\)

The left side cancels. Multiply the right:

\((-2-2x)=-24\)

Add 2 to both sides. The 2s on the left cancel:

\((-2-2x)+2=(-24)+2\\-2x=-22\)

Divide both sides by -2. The -2 on the left cancel.

\((-2x)/-2=(-22)/-2\\x=11\)

Therefore, the answer is 11.

Answer:

x = 11

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation:

*(-2-2*x)/(3)-(-8)=0

Simplify:

*-2 - 2x  / 3

Pull out like factors:

*-2 - 2x  =   -2 • (x + 1)

Now It should look like this:

-2 • (x + 1) / 3 - (-8)  = 0

Rewrite the whole as a equivalent fraction using 3 as the denominator:

*-8 = -8 / 1 = -8 • 3 / 3

Add the two equivalent fractions which now have a common denominator

-Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

*-2 • (x+1) - (-8 • 3) / 3 = 22 - 2x / 3

Pull out like factors:

*22 - 2x  =   -2 • (x - 11)

Now you should have this:

*-2 • (x - 11)  / 3  = 0

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

-Now, to get rid of the denominator, multiply both sides of the equation by the denominator.

*-2•(x-11)  / 3 • 3 = 0 • 3

-Now, on the left hand side, the  3  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

Now you should have this:

*-2  •  (x-11)  = 0

Now Solve:

x-11 = 0  

-Add  11  to both sides of the equation:

x = 11

Answer:

350mlliliters = 0.35liters

9liters = 9000milliliters

The parametric equations for the curve are:

x = -5t^3 - 3t

y = t

To find parametric equations for the curve x = -5y^3 - 3y, we can set y as the parameter and express x in terms of y.

Let y = t, where t is the parameter.

Substituting y = t into the equation x = -5y^3 - 3y:

x = -5(t^3) - 3t

The interval for the parameter values depends on the context or specific requirements of the problem. If no specific interval is given, we can assume a wide range of values for t, such as all real numbers.

So, the correct answer is:

A. x = -5t^3 - 3t, y = t

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The question is:

This means it is required to find the z-score for 0.05.

To do this, you have to refer to the Area Under Normal Distribution Table.

z-scores are given along the 1st column and 1st row.

The value 0.05 is the significance level. We have to find its corresponding confidence level. To do that, subtract from 0.5:

The z-score for 0.45 is the same as the z-score for 0.05.

Check this or its approximate value in the table:

You'll see for 0.4495.

This falls on 1.6 under .04

Add them together to get 1.6+0.04=1.64

The z-score is 1.64.

Answer:

x ≈ 25.73

Step-by-step explanation:

using the tangent ratio in the right triangle

tan25° = \(\frac{opposite}{adjacent}\) = \(\frac{12}{x}\) ( multiply both sides by x )

x × tan25° = 12 ( divide both sides by tan25° )

x = \(\frac{12}{tan25}\) ≈ 25.73 ( to 2 dec. places )

The value of the line segment in the right-angle triangle 'x' will be 25.75 units.

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

Trigonometric functions examine the interaction between the dimensions and angles of a triangular form.

The measure of the length 'x' is calculated by the tangent of angle 25°. The tangent of an angle is the ratio of the perpendicular to the base of the right-angle triangle. Then we have

tan 25° = 12 / x

x = 12 / tan 25°

x = 12 / 0.466

x = 25.75 units

The value of the line segment in the right-angle triangle 'x' will be 25.75 units.

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Answer:

1) Add/Subtract the same quantity to/from both sides.

2)Yes.

Step-by-step explanation:

We can get equation B from equation A by adding /subtracting the same quantity to/from both sides.

Both the linear equations have same solution.

A linear equation is an equation that has one or multiple variable with the highest power of the variable is 1.

Given linear equations are:

A. 3x - 1 = 7

B. 3x = 8

1. We can get equation B from equation A by adding '1' on either side.

2.Equation A and equation B are same equations. Therefore, they have the same solution.

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I can help you with that problem i just did that on my own.

The linear expression that could be used to find the number of weeks until he reaches 30 subscriptions is given as follows:

A. 15 + 3x = 30.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

The parameters for this problem are given as follows:

Hence the number of subscriptions after x weeks is given as follows:

y = 3x + 15.

The number of weeks to reach 30 subscriptions (y = 30) is given as follows:

3x + 15 = 30.

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The area of the polygon is 12 square units.  In mathematics and everyday life, an estimate is an approximate calculation or guess that is close to the actual value but may not be exact.

To make an estimate or guess, you can square off the parallelogram and create a rectangle and add your squares (or multiply 3x4) to = 12": This part explains a method for estimating the area of a parallelogram. It suggests that if you take a parallelogram and "square it off" (convert it into a rectangle by drawing a perpendicular line), you can then find the area of the rectangle, which is easier to calculate. In this case, the dimensions of the rectangle are given as 3 units for the base and 4 units for the height, and the estimated area is 12 square units.

You can use the formula for the exact area using base x height (3x4) you get the same answer of 12 square units": This part emphasizes that the estimation method used in step 2 (multiplying 3 by 4) produces the same result as the exact formula for finding the area of a parallelogram, which is base times height. In this case, both the estimation and the formula give an area of 12 square units.

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Answer:

n+16

Step-by-step explanation:

9+7+n

Combine Like Terms

=9+7+n

=(n)+(9+7)

=n+16

Answer:

16+n

Step-by-step explanation:

9 + 7 +n

16 + n

Answer:

4

Step-by-step explanation:

8x + 15 = 5.5x +25

so 2.5x =10

x=4

The radius of the cylinder is 4 units.

The radius of the cylinder, we can use the formula for the volume of a cylinder:

V = πr²h,

where V is the volume, r is the radius, and h is the height.

In this case, we are given that the volume of the cylinder is 24π cubic units and the height is 1.5 units. We can substitute these values into the formula:

24π = πr²(1.5).

Simplifying the equation:

24 = 1.5r²

Dividing both sides of the equation by 1.5

16 = r²

Taking the square root of both sides of the equation:

r = √16.

r = 4.

Therefore, the radius of the cylinder is 4 units.

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The value of a Chi-Square goodness-of-fit test at a 5% significance level is 13.45

We need to perform a Chi-Square goodness-of-fit test at a 5% significance level.

First we need to calculate the expected count

expected value = ∑(x)/n

= (40 + 33 + 35 + 32 + 60)/5

= 200/5

= 40

Now we need tocalculate the test statistic value

Observed  expected  O - E    (O - E)^t/E       %

40                40             0            0                   0

33                40             -7          1.225          9.11

35                40             -5          0.625         4.65

32                40             -8         1.6                11.90

60                40             20        10                 74.35

Chi square test is 13.45

Therefore, the value of test statistics is 13.45.

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Answer:

4ft and 2ft

Step-by-step explanation:

If you cut a board into two pieces and one if 2ft longer than the other, then you can subtract 2 from 6 and that will be your answer.

Answer:

39°

Step-by-step explanation:

\(angle \: 1 + 2 = 180(co \: interior \: angles \: \:in \: parallel \: lies \: are \: add \: up \: t \: equal \: 180) \\ \)

13x + 24 + 5x -6 = 180

18x+ 18 =180

18x +18 -18 =180-18

18x = 162

18 18

x = 9

Therefore,

m<2 = 5x- 6

= 5(9) -6

= 45-6

= 39°

Answer:

Benjamins cost this month would be $27.

The monthly cost for x slices of pizza would be x+20

Step-by-step explanation:

The statements concerning areas under the standard normal curve that are true: a) If a z-score is negative, the area to its right is greater than 0.5. b) If the area to the right of a z-score is less than 0.5, the z-score is negative.

After analyzing these statements, I can conclude that:

a) True - If a z-score is negative, it means that the value is below the mean. In a standard normal curve, the mean has 50% of the area to the left and 50% to the right. Therefore, a negative z-score will have more than 50% of the area to its right.

b) True - If the area to the right of a z-score is less than 0.5, it means that the z-score is above the mean since more than 50% of the area is to the left. In a standard normal curve, the mean corresponds to a z-score of 0. Thus, a z-score with less than 50% of the area to its right is negative.

c) False - If a z-score is positive, the area to its left is greater than 0.5, not less. This is because a positive z-score indicates that the value is above the mean, and more than 50% of the area lies to the left.

So, the correct answer is that statements a) and b) are true, while statement c) is false.

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Answer:

?? I don’t speak spanish

Step-by-step explanation:

Answer: The product of two consecutive negative integers is 600. What is the value of the lesser integer?

Step-by-step explanation:

EDGE2021

Yes, you can reconstruct the 14 vertices tree , A, B, . . . , N using the given pre-order and post-order traversals.

Here is a step-by-step explanation of how to do it:

Start with the first vertex in the pre-order list (A). This vertex will be the root of the tree.
Find the position of A in the post-order list. All the vertices before A in the post-order list will be in the left subtree, and all the vertices after A will be in the right subtree.
Repeat the process for the left subtree and right subtree separately, using the same approach of finding the root (the first vertex in the pre-order list for that subtree) and splitting the post-order list into left and right subtrees accordingly.
Following these steps, you will reconstruct the tree as follows:
Root: A
Pre-order left subtree: B, D, E, H, L, M, I, F
  Post-order left subtree: D, L, M, H, I, E, F, B
Pre-order right subtree: C, G, J, K, N
  Post-order right subtree: J, N, K, G, C
Repeating the process for the left subtree:
  Root: B
  Pre-order left subtree: D, E, H, L, M, I
  Post-order left subtree: D, L, M, H, I, E
  Pre-order right subtree: F
  Post-order right subtree: F
Repeating the process for the right subtree:
  Root: C
  Pre-order left subtree: G, J, K, N
  Post-order left subtree: J, N, K, G
  Pre-order right subtree: None
  Post-order right subtree: None
Continuing this process for each subtree, you will reconstruct the original tree.

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Answer:

Let's simplify the given expression:

3(X-3) + 2(3-X) = 3X - 9 + 6 - 2X (distributing the coefficients)

= X - 3 (combining like terms)

Therefore, the equivalent algebraic expression is option C) X-3.

Step-by-step explanation:

(x+4)(2x−5)(x−1)

----------------------c

(x+1)(x+4)(2x−5)

(x+4)^(1-1)(2x-5)^(1-1)(2x-5)^(1-1)

(x+4)°(2x−5)°(x−1)°

1×1×1

1

law of indices says that x²/x=x^(2-1)=x

1. The sample space for the first experiment, where the first marble is replaced before drawing the second, is {(red, green), (red, blue), (green, red), (green, blue), (blue, red), (blue, green)}.

2. The sample space for tossing a coin three times is {(H, H, H), (H, H, T), (H, T, H), (H, T, T), (T, H, H), (T, H, T), (T, T, H), (T, T, T)}.

3. If the side facing up is red, there are two possible cards that could have been chosen: the one with red on both sides or the one with red on one side and black on the other.

4. The sample space for the couple's two children is {(girl, girl), (girl, boy), (boy, girl), (boy, boy)}.

5. The proportion of people who have accidents in a fixed year is 0.05(0.2) + 0.15(0.5) + 0.30(0.3) = 0.16.

1)Since it depends on the possibilities how dice was rolled ,thus we can say it would be {(red, green), (red, blue), (green, red), (green, blue), (blue, red), (blue, green)}.

2.The event corresponding to more heads than tails is {(H, H, T), (H, T, H), (T, H, H), (H, H, H)}.

3.) The probability that the other side is also red is 1/2 since there is one card with red on both sides and one card with red on one side and black on the other.

4) Since we know that the eldest is a girl, we can eliminate the last two outcomes, leaving us with {(girl, girl), (girl, boy)}. The probability that both are girls is 1/2.

5.)If policyholder A had no accidents in 1987, the probability that he or she is a good risk is 0.95(0.2)/0.84 = 0.226, and the probability that he or she is an average risk is 0.85(0.5)/0.84 = 0.506.

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Answer:

450m

Step-by-step explanation:

Answer:

Step-by-step explanation:

4³/ 4^5

64 / 1024

= 1/16

Answer: 625

Step-by-step explanation:

9.63 years are required for $390 to become $660. A charge for borrowing money or other assets is called an interest.

Compound interest simply indicates that the interest paid on a savings account, loan, or investment grows exponentially over time rather than linearly.

\(A = P(1 + \frac{r}{n} )^{nt}\)

Here, A = Amount,

P = Principal Amount

r = Rate of interest

n = Number of times interest is charged in a year

t = number of years

Given ,Here Principal Amount is $390, the rate of interest is 5.5%(0.055),

the number of times the interest is charged in a year (n=4),

and the final amount is $660,

therefore, number of years will be equal to,

\(660 = 390(1 + \frac{0.055}{4} )^{4*t}\)

\(\frac{660}{390} = (1.01375)^{4*t}\)

\(1.6923 = (1.01375)^{4*t}\)

\(log_{1.01375}1.6923 = 4t\)

\(4t = 38.5234\)

\(t = 9.63\)

Hence, number of years it will take for $390 to become $660 is 9.63 years.

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The number of students who watch between 1 - 2 hours is 9.

We have,

From the table,

Number of students who watch tv for 1 hour = 5

Number of students who watch tv for 1.5 hours = 3

Number of students who watch tv for 2 hours = 1

Now,

The number of students who watch between 1 - 2 hours.

= Number of students who watch tv for 1 hour + 1.5 hours + 2 hours

= 5 + 3 + 1

= 9

Thus,

The number of students who watch between 1 - 2 hours is 9.

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Answer: cylinder

Step-by-step explanation: