Please help me please

Answer:

138

Step-by-step explanation:

$114.54=83%

114.54/83=1.38

1.38=1*

1.38*100=138

Answer:

Part A - the independant variable is the monthly allowance, and the dependent amount is the one that he has to get As for in order to receive it.

Part B - y = 30x + 20

Step-by-step explanation:

Part A; The independent variable is monthly allowance and the dependent variables is earns in report card.

Part B; The function for this situation is;

⇒ f (x) = 30x + 20

Where, x is number of report card.

What is mean by Function?

A relation between a set of inputs having one output each is called a function.

Given that;

James earns 20 allowance every month.

And, Earn 30 for each a on his report card.

Now,

Let number of report card = x

Then, We can formulate the equation as;

⇒ f (x) = 30x + 20

Where, x is number of report card.

Hence, The independent variable is monthly allowance and the dependent variables is earns in report card.

Thus,

Part A; The independent variable is monthly allowance and the dependent variables is earns in report card.

Part B; The function for this situation is;

⇒ f (x) = 30x + 20

Where, x is number of report card.

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The Area of triangle with the given height 10 cm and base 6 cm is calculated to be  30 square centimeters.

To calculate the area of a triangle with height 10 cm and base 6 cm, we can use the formula:

Area = (1/2) x Base x Height

Substituting the given values, we get:

Area = (1/2) x 6 cm x 10 cm

Area = 30 square cm

Therefore, the area of the triangle is 30 square centimeters.

We can see that the area of the triangle is calculated by multiplying the base and height and then dividing the result by 2. In this case, the height of the triangle is 10 cm and the base is 6 cm, so the area is 30 square cm. This formula can be used to calculate the area of any triangle, regardless of its size or shape.

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The complete question is :

Calculate the Area of triangle with the height 10 cm and base 6 cm .

Answer:

To get the solution, we are looking for, we need to point out what we know.  

1. We assume, that the number 52 is 100% - because it's the output value of the task.  

2. We assume, that x is the value we are looking for.  

3. If 52 is 100%, so we can write it down as 52=100%.  

4. We know, that x is 20% of the output value, so we can write it down as x=20%.  

5. Now we have two simple equations:

1) 52=100%

2) x=20%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

52/x=100%/20%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 20% of 52

52/x=100/20

(52/x)*x=(100/20)*x       - we multiply both sides of the equation by x

52=5*x       - we divide both sides of the equation by (5) to get x

52/5=x  

10.4=x  

x=10.4

now we have:  

20% of 52=10.4

Step-by-step explanation:

Answer:

The data should be from 1 to 2 with tick marks every 10th

Step-by-step explanation:

Answer:

  127/924 ≈ 0.1374

Step-by-step explanation:

Given a box with 2 pennies, 4 nickels, 6 dimes, you want the probability that 6 randomly chosen coins will have a value of 50 cents or more.

The ways 50 cents (or more) can be made from those coins are ...

There is 6C6 = 1 way to choose 6 dimes.

There are (6C5)(4C1) = 6·4 = 24 ways to choose 5 dimes and 1 nickel

There are (6C5)(2C1) = 6·2 = 12 ways to choose 5 dimes and 1 penny

There are (6C4)(4C2) = 15·6 = 90 ways to choose 4 dimes and 2 nickels

The total number of ways to get 50¢ or more is ...

  1 +24 +12 +90 = 127

The total number of ways to choose 6 coins from the 12 is ...

  12C6 = 924

The probability of choosing 6 coins that total 50¢ or more is ...

  127/924 ≈ 0.1374

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Component 3 must be started on day 197 to meet the delivery date of day 200.

To illustrate the backward schedule, we need to start from the delivery date (day 200) and work our way backward, taking into account the lead times and dependencies of each operation.

(a) Backward schedule:

Operation    |  Work Center  |  Time (hours)  |  Start Day

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

Final Assembly |   Work Center 1  |        1       |     200

Sub-assembly 1 |   Work Center 2  |        2       |     199

Component 4     |   Work Center 3  |        3       |     197

Component 2     |   Work Center 4  |        4       |     196

Component 3     |   Work Center 5  |        3       |     ????

(b) To identify when component 3 must be started to meet the delivery date, we need to consider its dependencies and lead times.

From the backward schedule, we see that component 3 is required for sub-assembly 1, which is scheduled to start on day 199. The time required for sub-assembly 1 is 2 hours, which means it should be completed by the end of day 199.

Since component 3 is needed for sub-assembly 1, we can conclude that component 3 must be started at least 2 hours before the start of sub-assembly 1. Therefore, component 3 should be started on day 199 - 2 = 197 to ensure it is completed and ready for sub-assembly 1.

Hence, component 3 must be started on day 197 to meet the delivery date of day 200.

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Answer:

The Answer would be 49.

Step-by-step explanation:

Question has errors in typing that 572 should be √57/2

Because if it's 572 then 2a=1 so

Also

c also comes different

If it's like what I said

then

and

By putting values

Option B can be correct

Answer:

B: a = 1, b= 7, c = -2

Step-by-step explanation:

Quadratic Formula

\(x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when}\:ax^2+bx+c=0\)

Given:

\(x=\dfrac{-7\pm\sqrt{57}}{2}\)

Comparing the terms of the given x-value with those of the quadratic formula:

\(\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}=\dfrac{-7\pm\sqrt{57}}{2}\)

Therefore:

Using the found values of a and b to solve for c:

\(\implies b^2-4ac=57\)

\(\implies (7)^2-4(1)c=57\)

\(\implies 49-4c=57\)

\(\implies -4c=57-49\)

\(\implies -4c=8\)

\(\implies c=-2\)

In summary:   a = 1,  b = 7,  c = -2

\(\implies x^2+7x-2=0\)

Therefore, option B is the correct solution.

Answer: false

Step-by-step explanation:

The probability of having a single card out of the two types of cards can be determined through the formula of probability. We can find the probability of an event by dividing the number of favourable outcomes by the number of total outcomes.

Example: A standard deck of cards contains 52 cards and two colours : black and red.

The probability of drawing a red card can be determined by dividing the number of favourable outcomes (number of red cards in a deck) by the total number of possible outcomes (number of cards in a deck).

Hence, the probability of drawing a red card would be:

Total number of red cards in a deck = 26 (red cards)

Total number of cards in a deck = 52 (total cards)

Probability of drawing a red card = Number of favourable outcomes/ Total number of possible outcomes

                                                       = 26/52

                                                       = 1/2

                                                        = 0.5

                                                        = 50%

We know that the selected student can have one of two types of cards. Therefore, the probability that a student has exactly one of two types of cards is the probability of selecting one of the two types of cards out of the two types of cards.

Probability of having one type of card= Number of favourable outcomes/ Total number of possible outcomes

We can find the probability of one type of card by subtracting the probability of having two types of cards from 1.

The probability of having two types of cards= 3/5 (given)

∴ The probability of having one type of card= 1 - (3/5)

                                                                         = 2/5

                                                                         = 0.4

                                                                         = 40%

Therefore, the probability of selecting a student with exactly one type of card is 0.4 or 40%.

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Answer:

See answers below:

Step-by-step explanation:

Using corresponding angles properties, angles opposed by the vertex, and supplementary angle properties, we get:

<1 = 75 degrees

<2 = 105 degrees

<3 = 44 degrees

<4 = 136 degrees

<5 = 44 degrees

<6 = 90 degrees

<7 = 46 degrees

<8 = 75 degrees

<9 = 105 degrees

<10 = 75 degrees

<11 = 59 degrees

<12 = 46 degrees

<13 = 75 degrees

<14 = 105 degrees

<15 = 44 degrees

<16 = 136 degrees

<17 = 44 degrees

<18 = 136 degrees

answer : 26

steps

get hypotenuse

a² + b² = c²

7² + 8² = c²

49 + 64 = c²

113 = c²

square root of c is √113 which 10.63

7 + 8 + 10.63 = 25.63

The solution is given below.

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

The perimeter of a rectangle is 40 cm. The length is 14 cm.

Let x = width of the rectangle.

Ravi says he can find the width using the equation 2(x + 14) = 40.

Fran says she can find the width using the equation 2x + 28 = 40.

now, we get,

1. Divide both sides by 2

 2(x+14) = 40

 x+14 = 20

2. Isolate the x term by subtracting 14 from both sides

3. x = 6. The width of the triangle is 6 cm.

4. Isolate the x term by subtracting 28 from both sides

 2x + 28 = 40

 2x = 12

5. Divide both sides by 2

6. x = 6

7. The two equations have the same solution, because by the distributive rule, 2(x+14) = 2x+28.

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a. an exponential function where x is the number of 5700 year periods and y is the amount of carbon-14 is: y = a (b)^(x/h)

b.  the amount of carbon-14 after 11,400 years is 0.25 mg

The amount of time needed for a procedure to affect half of anything, such as the amount of time needed for a radioactive substance's atoms to split in half. The half-life of a radioactive sample is the amount of time needed for half of its atomic nuclei to spontaneously decay, which releases energy and particles, or, alternatively, the amount of time needed for the radioactive sample to disintegrate 60 times every second.

a.

y = a (b)^(x/h)

here, y = amount of carbon-14

a = initial amount

b = final amount

x = time elapsed

h = half life

b. we know that half of it will change into another form in 5700 years, Therefore, if start with 0.5 mg, that would be half in 5,700 years, or 0.25 mg in 11,400 years, which is another half life.

Thus, the amount of carbon-14 after 11,400 years is 0.25 mg

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Answer:

Your answer would be (x-4)

Step-by-step explanation:

If you follow the steps of factoring, first you need to set it up. I always start with the term with the variable first.

(x+_)(x+_)

And since we already know one of the factors, we can put that in our expression.

(x+6)(x+_)

Now remember the trick FOIL.

You multiply the FIRSTS together, then the OUTSIDES, then the INSIDES, and finally the LASTS.

To figure out our last blank we us this trick, but backwards. To get the 24 at the end of your expression x^2+2x-24 you multiply the LASTS together. So 6*_=-24. (remember the subtraction sign stays as a negative with the 24) That answer is -4

Hope that makes sense, and good luck!

The differences they would have E: The sample sizes would be different.

The difference between the 95% and 98% confidence intervals lies in the level of precision desired. A 98% confidence interval would be wider than a 95% confidence interval because it has to accommodate a larger range of possible values. However, the formula for calculating confidence intervals takes into account both the desired level of precision and the sample size. As the desired level of precision increases (from 95% to 98%), the required sample size also increases.

Therefore, the only difference between the two confidence intervals would be the sample size. The standard errors, t-statistics, z-statistics, and point estimates of the population mean would all be calculated using the same formula and values for both confidence intervals.

Option E is answer.

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Answer:

Yes,she had enough

½pound=8ounces

she needs a total of 24ounces

Step-by-step explanation:

She had enough because ½pound is 8ounces thus 16ounces+8ounces add up to 24ounces.

Answer:

Yes,she had enough

½pound=8ounces    she needs a total of 24ounces

Step-by-step explanation:

Answer:

y

2

​

=−

2

z

​

+7

Steps for Solving Linear Equation

z=18−2×2−2y2

Multiply 2 and 2 to get 4.

z=18−4−2y

2

​

Subtract 4 from 18 to get 14.

z=14−2y

2

​

Swap sides so that all variable terms are on the left hand side.

14−2y

2

​

=z

Subtract 14 from both sides.

−2y

2

​

=z−14

Divide both sides by −2.

−2

−2y

2

​

​

=

−2

z−14

​

Dividing by −2 undoes the multiplication by −2.

y

2

​

=

−2

z−14

​

Divide z−14 by −2.

y

2

​

=−

2

z

​

+7

Step-by-step explanation:

the given equation defines a paraboloid that lies below the plane z=0. Specifically, it is situated above the xy-plane, which means that the z-values of all points on the surface are greater than or equal to zero.

we can break down the equation z=18-2x^2-2y^2. This equation represents a paraboloid with its vertex at (0,0,18) and axis of symmetry along the z-axis. The first term 18 is the z-coordinate of the vertex and the last two terms -2x^2 and -2y^2 determine the shape of the paraboloid.

Since the coefficient of x^2 and y^2 terms are negative, the paraboloid is downward facing and opens along the negative z-axis. Therefore, all points on the paraboloid have z-values less than 18. Additionally, since the paraboloid is situated above the xy-plane, its z-values are greater than or equal to zero.

the paraboloid defined by the equation z=18-2x^2-2y^2 is situated below the plane z=0 and above the xy-plane. Its vertex is at (0,0,18) and it opens along the negative z-axis.

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Answer:

the answer would be 16.50

The intervals of concavity for f(x) = 3 cos x, with 0 < x < 21, are (0, π/2) and (3π/2, 2π).

To find the intervals of concavity for f(x) = 3 cos x, we need to analyze the second derivative of the function.

First, let's find the second derivative of f(x):

f'(x) = -3 sin x (derivative of cos x)

f''(x) = -3 cos x (derivative of -3 sin x)

Now, we can analyze the concavity of f(x) by considering the sign of the second derivative:

When x ∈ (0, π/2): In this interval, cos x > 0, so f''(x) < 0. The second derivative is negative, indicating concavity downwards.

When x ∈ (π/2, 3π/2): In this interval, cos x < 0, so f''(x) > 0. The second derivative is positive, indicating concavity upwards.

When x ∈ (3π/2, 2π): In this interval, cos x > 0, so f''(x) < 0. The second derivative is negative, indicating concavity downwards.

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To find the predicted value for Y given the regression model Y = 76.4 - 6X1 + X2, X1 = 11, and X2 = 15, we can substitute the values into the equation and calculate the result.

Y = 76.4 - 6(11) + 15

Y = 76.4 - 66 + 15

Y = 25.4

Therefore, the predicted value for Y is 25.4.

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The first option is correct. As long as the signs remain the same for the specific terms, it's correct.

x+y+z is equivalent to z+y+x

Using the Poisson distribution, there is a 0.8335 = 83.35% probability that 2 or fewer will be stolen.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by:

\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)

The parameters are:

The probability that a rental car will be stolen is 0.0004, hence, for 3500 cars, the mean is:

\(\mu = 3500 \times 0.0004 = 1.4\)

The probability that 2 or fewer cars will be stolen is:

\(P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)\)

In which:

\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)

\(P(X = 0) = \frac{e^{-1.4}1.4^{0}}{(0)!} = 0.2466\)

\(P(X = 1) = \frac{e^{-1.4}1.4^{1}}{(1)!} = 0.3452\)

\(P(X = 2) = \frac{e^{-1.4}1.4^{2}}{(2)!} = 0.2417\)

Then:

\(P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.2466 + 0.3452 + 0.2417 = 0.8335\)

0.8335 = 83.35% probability that 2 or fewer will be stolen.

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The value of the expression is,

⇒ \(b^{- 4/5}\)

We have to given that;

The expression is,

⇒ \(\frac{b^{1/5} }{b}\)

Now, We can simplify the expression as;

⇒ \(\frac{b^{1/5} }{b}\)

⇒ \(b^{\frac{1}{5}- 1 }\)

⇒ \(b^{- 4/5}\)

Thus, The value of the expression is,

⇒ \(b^{- 4/5}\)

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Answer:

Step-by-step explanation:

6+9=15

(1+5)+9=15

6+9=15

Hope it helped

Answer: 1x6+9=15 or 15x1 or 6+9=15 or 5x3=15

Step-by-step explanation:

Answer:

B = 10.5

Step-by-step explanation:

From the figures, it looks like triangle HER is similar to triangle KPS.

From that we get

\( \dfrac{HE}{KP} = \dfrac{ER}{SP} \)

\( \dfrac{B}{7} = \dfrac{7.5}{5} \)

Multiply both sides by 7.

B = 10.5

Answer:

B = 10.5

C = 10

Step-by-step explanation:

When one divides the corresponding sides of similar triangles, one will attain the ratio of similitude. If one multiplies one of the similar triangle's sides by the ratio of similitude, then one will attain the corresponding side of the similar triangle. In simple terms, the ratio of similitude is the scaling factor between two similar polygons.

As per the given information, the two triangles are similar, therefore one can set up a proportion with their corresponding sides;

\(\frac{ER}{PS} = \frac{HE}{KP} = \frac{HR}{KS}\)

Substitute;

\(\frac{7.5}{5} = \frac{B}{7} = \frac{15}{C}\)

Solve for B with cross products;

\((7.5)(7) = (5)(B)\\52.5 = 5B\\10.5=B\)

Solve with cross products for C;

\((7.5)(C) = (15)(5)\\7.5C = 75\\C=10\)