If Miguel has 9 nickels and quarters in his pocket, and they have a combined value of 125 cents, how many of each coin does he have?

PLEASE HELP!! IM GIVING 20 POINTS!!!! THANKSSSS

Answer:

3,500,000cm =35km

Step-by-step explanation:

So we have the following ratio

cm:distance

1:500,000

and we want to solve the following

7:x

To solve this just multiply 500,000 by 7 (this is what we mulitplied 1 by to get 7 in the second ratio)

7*500,000=3,500,000

Answer:

35 kilometers

Step-by-step explanation:

The scale factor is 1(cm):500000(cm)

All you have to do is factor in the 7 cm that is represented on the map.

7 × 500000 = 3,500,000 cm

There are 100,000 cm in 1 kilometer.

3,500,000 ÷ 100,000 = 35 Kilometers

Answer:

D

Step-by-step explanation:

I Looked at te graph and counted each space

Answer:

Step-by-step explanation:

The Anwser is B

The required value of x is 22 degrees for the given figure.

Adjacent angles are a sort of additional angle. Adjacent angles share a common side and vertex, such as a corner point. Their points do not overlap in any manner.

As we know that supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles.:

According to the given figure, it can be written as follows:

2x + 24 + 6x - 20 = 180

8x + 4 = 180

8x = 180 - 4

8x = 176

x = 176/8

x = 22

Therefore, the required value of x is 22 degrees for the given figure.

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The complete question is as follows:

Find the value of x for the below figure.

Hypotheses: H₀: p ≤ 0.31, H₁: p > 0.31 (where p is the proportion of voters influenced by political advertisements).

The hypotheses for the hypothesis test in this scenario can be stated as follows:

Null Hypothesis (H₀): The proportion of voters influenced by political advertisements is equal to or less than 31% (p ≤ 0.31).

Alternative Hypothesis (H₁): The proportion of voters influenced by political advertisements is greater than 31% (p > 0.31).

In this case, the null hypothesis assumes that the true proportion of voters influenced by political advertisements is not significantly different from or less than 31%, while the alternative hypothesis suggests that the true proportion is greater than 31%.

To test these hypotheses, the political scientist will collect data from the random survey of 2429 voters and analyze it using statistical methods, such as constructing a confidence interval or conducting a hypothesis test using appropriate statistical techniques (such as the z-test or chi-square test) to determine whether the observed proportion (698 out of 2429 voters) significantly supports the alternative hypothesis of a proportion greater than 31%.

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Given:

Required:

We need to solve for L.

Explanation:

Consider the given equation.

Subtract 2W from both sides.

Divide both sides by 2.

Final answer:

gcf = 7

= 7q(3b + 2 - 4r)

4x - 8y + 16z

gcf = 4

= 4(x - 2y + 4z)

1)

= 7q ( 3b+2-4r )

2)

= 4(x−2y+4z)

hope this helps

Volatile data .

Mary is likely to miss out on any volatile data from the phone when she takes a logical image.

Volatile data includes data that is stored in temporary memory,

such as browser history, RAM, and other data stored in active memory.

This type of data will not be captured when taking a logical image of the phone.

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A given shape that is bounded by three sides and has got three internal angles is referred to as a triangle. Thus the value of PB is 8.0 units.

A given shape that is bounded by three sides and has got three internal angles is referred to as a triangle. Types of triangles include right angle triangle, isosceles triangle, equilateral triangle, acute angle triangle, etc. The sum of the internal angles of any triangle is \(180^{o}\).

In the given question, point P is such that <APB = <APC = <BPC = \(120^{o}\). Also, line PB bisects <ABC into two equal measures. Thus;

<ABP = \(30^{o}\)

Thus,

<ABP + <APB + <BAP = \(180^{o}\)

30 + 120 + <BAP = \(180^{o}\)

<BAP = \(180^{o}\) - 150

<BAP = \(30^{o}\)

Apply the Sine rule to determine the value of PB, such that;

\(\frac{AP}{Sin B}\) = \(\frac{BP}{Sin30}\)

\(\frac{8}{Sin30}\) = \(\frac{BP}{Sin 30}\)

BP = \(\frac{8*Sin30}{Sin 30}\)

     = \(\frac{4}{0.5}\)

BP = 8.0

Therefore, the value of BP = 8 units.

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the coordinates of point B (3,8)

Answer:

Algebraic identities

Step-by-step explanation:

Here, we want to choose the correct method to factorize the given expression

That will be;

Algebraic identities

This is because, the terms which have an algebraic term in common have already been grouped and thus what we have to apply next is algebraic identities

Answer:

2 : 1

Step-by-step explanation:

Initial dimension = 8:6

New information;

height of 12 units and a width of 16 units

Final dimension = 16:12

Comparing both dimensions,

Multiplying the initial by 2, we get the final dimension, this meas;

Final Dimension = Initial Dimension * 2

Final Dimension / Initial Dimension = 2 / 1 = 2 : 1

Answer: 640 girls

Step-by-step explanation:

the total play has 28 students

the amount of girls is 4/7 total

multiply the fraction 4/7 by 1,120

the answer is 640 girls

The error Justin made in his calculation is "He should have added the values in the numerator before dividing by 2".

The correct answer choice is option B

(x + y + 5) / 2

Where,

x and y are his parents’ current heights in inches,

Mom’s height = 54 inches

Dad’s height = 71 inches

Substitute into the expression

(71 + 54 + 5) / 2

= 130/2

= 65 inches

Justin's work:

( 71 + 54 + 5 ) / 2

= 71 + 27 + 5

= 103 inches

Therefore, Justin should have added the numerators before dividing by 2.

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Answer: 81

Step-by-step explanation:

Answer:

3^4

Step-by-step explanation:

You can use the rule:

\( {n}^{a} \times {n}^{b} = {n}^{a + b} \)

2+2 = 4 so that's your answer

and 3^ 4 is 81 when you put it in a calculator

21 inch²

we splitthe two shapes, find the areas by multiplying the two sides and we add both of the answers, 15+6

Answer:

2(3) + 2(6) = 6 + 12 = 18 square feet

The probability is 0.6480.

The probability is 0.9629.

1. This can be computed using the standard normal distribution as follows:

z = (70 - 69.0) / 2.8 = 0.357

Using a standard normal table or calculator, we find that P(Z ≤ 0.357) ≈ 0.6480. Therefore, the probability that a male passenger can fit through the doorway without bending is approximately 0.6480.

2. = 2.8/√25 = 0.56 inches.

We want to find P(x < 70), which is the probability that the mean height of the 25 men is less than 70 inches. This can be standardized using the standard normal distribution as follows:

z = (70 - 69.0) / 0.56 = 1.79

Using a standard normal table or calculator, we find that P(Z < 1.79) ≈ 0.9629. Therefore, the probability that the mean height of the 25 men is less than 70 inches is approximately 0.9629.

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Standard deviation can be used for variables measured at the interval level or the ratio level. Therefore, the correct answer is: c) the interval level.

Standard deviation is a measure of the spread or variability of a dataset. It is calculated as the square root of the variance, which is the average of the squared differences from the mean.

The formula for the sample standard deviation is:

s = √[ Σ(x - x')² / (n - 1) ]

where s is the sample standard deviation, x is the data point, x' is the sample mean, n is the sample size, and Σ denotes the sum of the values.

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Answer:

Solution,

b=8

Now,

9-b

=9-8

=1

Hope this helps...

Good luck on your assignment...

Answer:

$520

Step-by-step explanation:

20%

=0.2

0.2*650

=130

650-130

=520

The equation that can be used to solve for c in the given right triangle is the sine function: c = (3 meters) / sin(50°).

In the given right triangle ABC, we are given that angle ACB is a right angle (90°) and angle CBA is 50°. We also know the length of side AC, which is 3 meters. The length of side CB is denoted by "a," and the length of the hypotenuse AB is denoted by "c." To solve for c, we can use the trigonometric function sine (sin). In a right triangle, the sine of an acute angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. In this case, we can use the sine of angle CBA (50°) to find the ratio between side CB (a) and the hypotenuse AB (c).

The equation c = (3 meters) / sin(50°) represents this relationship. By dividing the length of side AC (3 meters) by the sine of angle CBA (50°), we can find the length of the hypotenuse AB (c) in meters. Using the given equation, we can calculate the value of c by evaluating the sine of 50° (approximately 0.766) and dividing 3 meters by this value. The resulting value will give us the length of the hypotenuse AB, completing the solution for the right triangle.

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The area of the original garden is 7200 square feet.

Given,

a rectangular garden has a length that is twice its width. the dimensions are increased so that the perimeter is doubled and the new shape is a square with an area of 3600 square feet.

we are asked to determine the area of the original garden = ?

let the width be x

and the length be 2x

area of the square = 3600 sq feet

Perimeter of the rectangle = 2(l+b)

⇒ 2(2x+x)

⇒ 2(3x)=6x

area of square = a²

a² = 3600

a = √3600

a = 60

now we get the width = 60

length = 2(60)

= 120

Now calculate the area of the rectangle:

= l×b

= 60 × 120

= 7200

hence we get the area as 7200 square feet.

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Based on the simulations from parts (A) thru (E), the shape of the distribution of "heads" is bell-shaped. Therefore, the correct answer is B. Bell-shaped.

What is the most probable distribution's shape?

Bell-shaped distributions, sometimes referred to as normal or Gaussian distributions in math and science, are the most significant probability distribution shapes since they are typically the result of sufficiently big data sets from naturally occurring random variables.

The mathematical idea known as the normal distribution, and also referred to as the Gaussian distribution, is commonly defined by the mound form.

When data points are utilized to plot a line for a particular item that satisfies the requirements of the normal distribution, a form called a mound is produced.

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Answer:

Greatest common factor of 21 28 and 42

We found the factors and prime factorization of 28 and 42. The biggest common factor number is the GCF number. So the greatest common factor 28 and 42 is 14.

Tell me if I'm wrong.

Reducing the variation of a process will increase the width of a given confidence interval relative to that process.

Option C is correct .

In statistics, the probability that a population parameter will fall between a set of values for a predetermined percentage of the time is referred to as a confidence interval. By employing the dimensions of values used in the computation of the intervals, it is simple to establish the link between components of two confidence intervals. The width is a fundamental component in these range estimates, which are affected by sample size, etc.

Hence, reducing the variation of a process will increase the width of a given confidence interval relative to that process is false.

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Step-by-step explanation:

f(1)=(3×1)+1=4

so f(g(1)=4

Answer:

(B)

Step-by-step explanation:

Can't explain lol, but that's the answer

The correct answer is a. high. In a one-sample chi-square test, the observed frequencies of the variable being studied are compared to the expected frequencies assuming a particular distribution or hypothesis.

The chi-square test statistic measures the difference between the observed and expected frequencies and determines whether this difference is statistically significant.

If the respondents are distributed very unequally across the levels of the variable being studied, the observed frequencies will be very different from the expected frequencies. This will result in a large difference between the observed and expected frequencies, leading to a high value for the chi-square test statistic.

The chi-square value is calculated by summing the squared differences between the observed and expected frequencies, divided by the expected frequencies. If the respondents are distributed very unequally across the levels of the variable being studied, the expected frequencies will be very different from the observed frequencies, resulting in a high value for the chi-square test statistic.

Therefore, in a one-sample chi-square test, if your respondents are distributed very unequally across the levels of your variable, your chi-square value will be high.

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