Please help a lot of points!! Will put bainliest answer!

Answer:

A

Step-by-step explanation:

Answer:

41.125

Step-by-step explanation:

My friend use a calculator

When solving this equation the answer is 41.125

But when the decimal is rounded the answer is 41.13

Answer:

Step-by-step explanation:

£190 increase by 15%

Find 10%=19.0

5%=9.5

ADD THEM=19+9.5=28.5

28.5+190=£218.5

Answer:

£218.5

Step-by-step explanation:

\(£190 + \frac{15}{100} \times 190 \\ \\ = £190 + 0.15 \times £190 \\ \\ = £190 + £28.5 \\ \\ = £218.5\)

Answer:

(0,0)

Step-by-step explanation:

y = 0

2x + 3y = 5x - y  Substitute 0 for y

2x + 3(0) = 5x - 0

3x = 5x  Subtract 3x from both sides

3x -3x = 5x - 3x

0 = 2x  Divide both sides by 2

0 = x

Check

2(0) + 3(0) = 5(0) - 0

0 = 0

Answer:

(0,0)

Step-by-step explanation:

2x + 3y = 5x - y

First, solve for x.

Subtract 2x from both sides.

3y = 5x - 2x - y

3y = 3x - y

Subtract y from both sides.

3y - y = 3x

2y = 3x

Divide both sides by 2.

y = 1.5x

A solution to the equation is given as,

( x , 0 ) ⇒ ( x , y )

Now substitute y with 0 and find the value of x.

0 = 1.5x

divide both sides by 0.

0 = x

Answer:

\(geomtric \: mean = \sqrt{x \times y} \\ x = 2 \\ y = 6 \\ then \: gm = \sqrt{2 \times 6} = \sqrt{12} \\ = \sqrt{4 \times 3} = 2 \sqrt{3} \\ thank \: you\)

1) The 99% confidence interval for the population mean is;

CI = (51.32, 58.68)

2)(a) The value of the population proportion is; 0.625

b) The standard error of the proportion is; 0.0624

c) A 99% CI for the population proportion is; CI = (0.5626, 0.6874)

d) The interpretation is that the proportion of those who watched the new show and suggested it replace the crime investigation show is between 0.5626 and 0.6874

1) We are given;

Sample size; n = 49

Sample Mean; x' = 55

Standard deviation; s = 10

Confidence level = 99%

Formula for confidence level is;

CI = x' ± z(s/√n)

z at 99% is; 2.576

Thus;

CI = 55 ± 2.576(10/√49)

CI = (51.32, 58.68)

2) The formula for confidence interval for proportion is;

CI = p ± z√(p(1 - p)/n)

We are given;

Sample size; n = 400

X = 250

a) Thus, population proportion = 250/400 = 0.625

b) Standard error is given by the formula;

SE = z√(p(1 - p)/n)

SE = 2.576√(0.625(1 - 0.625)/400)

SE = 0.0624

c) The  99% CI for the population proportion is;

CI = 0.625 ± 0.0624

CI = (0.5626, 0.6874)

D) The interpretation is that the proportion of those who watched the new show and suggested it replace the crime investigation show is between 0.5626 and 0.6874

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9514 1404 393

Answer:

  $3386.40

Step-by-step explanation:

The amount at the end of March can be found two ways:

  add up the deposits for Jan, Feb, Mar:

     1200.32 +985.43 +1200.65 = 3386.40

  subtract Apr and May from the May total:

     6374.72 -1000.98 -1987.34 = 3386.40

The total amount of money that he had deposited into his account at the end of March is $3386.40.

Answer:    

There are three ways to solve systems of linear equations in two variables: graphing. substitution method. elimination method.

Step-by-step explanation: hope this helps :)

Answer:

(A) A sequence is a function whose domain is the set of natural

numbers.

(C) The horizontal line test may be used to determine whether a

Step-by-step explanation:

Vertical and horizontal line test can be used to find out whether the function, not one-to-one. The test is done by making a horizontal line (for horizontal line test) or vertical line( for vertical line test). If there are no 2 or more points of the graph that touch the line in both tests, then the function would be one-to-one

Given

15 songs for $5; 45 songs for $15

Procedure

Let's calculate the fraction associated with the two ratios given to us.

In this case, we can see that the two fractions have the same ratio, therefore they have the same proportion.

Answer:

  see attached

Step-by-step explanation:

In general, you plot the solution to an inequality by placing a dot at the bound, then extending a line in the direction indicated by the inequality.

If the inequality symbol is < or >, the dot will be an open circle.

If the inequality symbol is ≤ or ≥, the dot will be a solid dot. That is the kind of dot needed here.

The boundary (dot) location for x ≥ -8 is at -8 on the number line. The inequality indicates that values of x greater than that are in the solution set, so the line will be shaded to the right of the dot.

The boundary (dot) location for x ≤ -2 is at -2 on the number line. The inequality indicates that values of x less than that are in the solution set, so the line will be shaded to the left of this dot.

Since the values of x must satisfy both inequalities (the conjunction is "and"), the solution set is where the lines overlap—between -8 and -2 on the number line.

_____

Additional comment

I find it useful to write inequalities with the "arrow" pointing to the left. Here, the inequalities would be written ...

  -8 ≤ x and x ≤ -2

Note that x is in the middle when the far left number is less than the far right number. (-8 < -2). That means, the inequality can be written as the compound ...

  -8 ≤ x ≤ -2

When the inequalities are written in this way, with arrow(s) pointing left, the location of the variable relative to the constant is the location of the shaded line relative to the dot representing the constant. Here, the appearance of ...

  -8 ≤ x ≤ -2

effectively shows you that the number line is shaded between solid dots at -8 and -2.

Answer:

\(8^7\)

Step-by-step explanation:

\( \dfrac{8^{15}}{8^7 \cdot 8} = \)

Remember that \( 8 = 8^1 \).

\( = \dfrac{8^{15}}{8^7 \cdot 8^1} \)

When you multiply powers with the same base, add the exponents. Do this in the denominator.

\( = \dfrac{8^{15}}{8^{7+1}} \)

\( = \dfrac{8^{15}}{8^{8}} \)

When  you divide powers with the same base, subtract the exponents.

\( = 8^{15-8} \)

\( = 8^7 \)

Answer:

4 I think

Step-by-step explanation:

4+36=40, 10x4=40

Answer: 12

Step-by-step explanation:

1) Create an equation. Lets call the missing number x. 36 is added to x or 36+x and when 36 is added to x it is 4 times of x or 4x, so our equation is 36+x=4x.

2) Bring the variable to one side by subtracting x on both sides. Our new equation is 36=3x.

36) Get rid off the coefficient 3 by dividing 3 on both sides to get x=12

The equation of the line having slope 0 and passing through (-3,-2) is f(x) = -2.

Any horizontal line has the same y-value for every point on the line. We are given that the line passes through the point (-3,-2). This means that f(-3) = -2, since the y-value of the point (-3,-2) corresponds to the value of the function at x = -3.

This is because no matter what x-value we plug into the function, the output (y-value) will always be -2. Therefore, the equation of the line in function notation is f(x) = -2.

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The transformation of f(x) to g(x) is :

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

The functions f(x) and g(x)

Where, we have

f(x) = x

g(x) = 1/9x - 2

The graph of the functions f(x) and g(x) are added as an attachment

And we have the transformations to be:

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Answer:

B) 49,062.5 ft²

Step-by-step explanation:

The area of a circle can be found using the following equation:

A(c) = πr²

Note:

A(c) = Area of circle

π = pi = 3.14

r = radius

The diameter of the circle is given to you. To find the radius, simply divide the diameter by 2:

Diameter/2 = Radius

Radius = 250/2 = 125

Next, plug in 125 into the Area formula for circle for r:

A(c) = πr²

A(c) = π(125)²

A(c) = π * 15625

A(c) = 3.14 * 15625

A(c) ≈ 49062.5

B) 49,062.5 ft² is your answer.

~

Answer:

Question 6a: \(p \leq 16\)

Question 6b: option d

Step-by-step explanation:

Question 6a: \(6p \leq 96\\6p/6 \leq 96/6\\p \leq 16\)

Question 6b:

- closed dot since its equal to 16

- p is less than 16 (arrow pointing left)

Step-by-step explanation:

7y=4x-5

y=(4/7)x-5/7

slope is equal to m where m is

y=mx+b

in this case m is 4/7

so slope =4/7

Answer:

x=27

Step-by-step explanation:

It’s a ratio:

9.9/11=x/30

cross multiply

11x=297

x=27

Answer:

g = A/s

Step-by-step explanation:

If A = gs, then to get g all by itself, divide both sides by s

A/s = g

This is the same as

g = A/s

The tangent line at that point is:

y = (-3/25)*x + 6/5

so m = -3/25, and b = 6/5

To find the slope at that point, we need to evaluate the derivative at that point.

y = 3/x

The derivative is:

y' = -3/x²

When x = 5, we have:

y' = -3/5² = -3/25

So that is the slope, m.

Now let's find the line.

The line must pass trhough the point (5, 3/5), then:

3/5 = (-3/25)*5 + b

3/5 = -3/5 + b

3/5 + 3/5 = b

6/5 = b

The equation of the line is:

y = (-3/25)*x + 6/5

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Answer:

11/25

Step-by-step explanation:

we can divide both top/bottom by 100, to get 11/25

:)

From the sampling distribution, the correct answer is: Both the center will remain the same, but the spread will decrease.

The center of the sampling distribution will remain the same, which is the expected proportion of even numbers showing on a single roll of the die, which is 1/2 or 0.5. This is because the probability of getting an even number on a single roll of the die does not change with the number of rolls in the experiment.

However, the spread of the sampling distribution will decrease as the number of rolls increases. This is because the larger the sample size, the more precise our estimate of the proportion of even numbers showing on each roll of the die will be. With more rolls, we will have a better idea of the true proportion of even numbers that the die produces.

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Answer:107/56 is the answer

The dimensions of the box is 6 ft by 6 ft by 8 ft. The width (and length) of the box is 6 ft.

Let x = width (and length) of the box

If the height is 2 ft greater than both the length and the width, then

x + 2 = height of the box

If the surface area is 228 ft², then

SA = (l x w) + 2(l x h) + 2(w x h)

228 ft² = x(x) + 2(x)(x + 2) + 2(x)(x + 2)

Simplify the equation.

228 = x² + 2x² + 4x + 2x² + 4x

228 = 5x² + 8x

5x² + 8x = 228

Get the positive root(s) of the equation.

(5x + 38)(x - 6) = 0

x = 6

width (and length) of the box = 6 ft

height of the box = x + 2 = 8 ft

Check the volume of the box.

V = l x w x h

288 = 6 x 6 x 8

288 = 288

Hence, the dimensions of the box is 6 ft by 6 ft by 8 ft.

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Answer:

The probability that the selected number is an odd number or a multiple of 3 is 6/9, or 2/3. This is because there are 6 numbers that meet the criteria out of the 9 numbers in the set: 1, 3, 5, 7, 9, and 3.

The equation of a exponential growth function is equal to:

Where:

y = the number of transistors

x = the number of years = 7 years

a = the initial value = 949,000

r = the rate of change = 41% = 0.41

Substitute the values:

Round to the nearest whole number: 10,514,775

Answer: 10,514,775 transistors

The solutions to the equation 1x² - 16x = 20 are x = 8 + 2√21 and x = 8 - 2√21.

To solve the quadratic equation 1x² - 16x = 20, we need to rearrange it into the standard form ax² + bx + c = 0. Let's simplify the equation step by step:

1x² - 16x = 20

First, move all terms to one side of the equation:

1x² - 16x - 20 = 0

Now we have a quadratic equation in the standard form. To solve it, we can use factoring, completing the square, or the quadratic formula. In this case, factoring may not be straightforward, so let's use the quadratic formula:

x = (-b ± √(b² - 4ac)) / (2a)

For our equation, a = 1, b = -16, and c = -20. Substituting these values into the quadratic formula:

x = (-(-16) ± √((-16)² - 4(1)(-20))) / (2(1))

Simplifying further:

x = (16 ± √(256 + 80)) / 2

x = (16 ± √336) / 2

x = (16 ± √(16 * 21)) / 2

x = (16 ± 4√21) / 2

Simplifying:

x = 8 ± 2√21

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