someone please help i do not understand i will give you brainlyest

The probability that the student chooses both math and Spanish is 0.5.  

Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

P(E) = Number of favorable outcomes / total number of outcomes

Given that professor is deciding which classes to teach in the fall.

The chooses math 341 with probability 3/7 and math 340 with probability 1/4 and neither class with probability 1/2.

P(M) = 3/7

P(S) = 1/4

P (M' ∩ S') = 1/2

According to De-Morgans law

P (M ∩ S) = P(M) + P(S) - P (M' ∩ S')

P (M ∩ S) =1/2

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Answer:

(7+9)/4= 16/4= 4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

7+9 = 16, so 16/4   u then see how many times 4 goes into 16, which is 4. because 4 x 4 = 16

Answer:

There is a 2/6 chance

Step-by-step explanation:

Because there is only 6 possibilities on a die, under the conditions (even number or a number greater than 3), there are 4 possibilities. This makes a 4/6 chance which can be simplified to 2/6.

Answer:

Slope is -2/3

Parallel slope is the same just draw another line with the same slope but a different y-intercept

Step-by-step explanation:

Answer: 3 gallons of gas left

Step-by-step explanation: since the car started out with 15 1/5 and then fills up 5 3/5 now there is 20 4/5 in the car then since the car consumed 17 4/5 just subtract the 17 4/5 from 20 4/5 and then you get 3 gallons left since 17 - 20 = 3 and 4/5 - 4/5 = 0/0 or 0 the answer is just 3 gallons left

Answer: it is 3 gallons

Step-by-step explanation:

The statements that are True about the Correlations is , "Correlations are a measure used to determine the degree to which two variables are related" , the correct option is (c) .

In the question,

few statements about Correlation is given ,

we need to find the statement that is True .

we know that , Correlation is the term that is used to measure the degree of relationship between two variable ,

the correlation can be negative , positive or 0 ,

and the negative correlation implies that if one variable increases then other variable decreases and vice a versa .

So , from the above information about Correlation ,

we conclude that , the True statement is "Correlations are a measure used to determine the degree to which two variables are related. "

Therefore , the statement in option (c) is True  .

The given question is incomplete , the complete question is

Select the statement below that is true about correlations.

(a) Correlations can only be negative

(b) Correlations are a measure of how much one variable changes as the other variable changes

(c) Correlations are a measure used to determine the degree to which two variables are related.

(d) Correlations are a measure of causation between two variables

(e) A negative correlation implies no relationship between variables

(f) Correlations can only be positive .

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Therefore, the sine of angle R in triangle PQR is 5/13.

A triangle is a polygon with three sides and three angles. It is one of the most basic shapes in geometry and is found in many different areas of mathematics and science, including physics, engineering, and architecture. Triangles can be classified based on the lengths of their sides and the measures of their angles.

There are several types of triangles, including:

Equilateral triangle: A triangle with three equal sides and three equal angles of 60 degrees each.

Isosceles triangle: A triangle with two equal sides and two equal angles opposite those sides.

Scalene triangle: A triangle with no equal sides and no equal angles.

Right triangle: A triangle with one angle measuring 90 degrees, which is also the angle between the two shorter sides, called the legs. The longest side is called the hypotenuse.

Acute triangle: A triangle where all three angles are acute, or less than 90 degrees.

Obtuse triangle: A triangle with one obtuse angle, or greater than 90 degrees.

Here,

In a right triangle, the sine of an angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. So, to find sin R, we need to first identify which side of the triangle is opposite angle R and which side is the hypotenuse.

From the given information, we know that PR is the hypotenuse, since it is opposite the right angle at vertex Q. Therefore, the side opposite angle R is PQ, which has a length of 5 cm.

Using the Pythagorean theorem, we can find the length of the remaining side QR:

QR² = PR² - PQ²

QR² = 13² - 5²

QR² = 144

QR = 12 cm

Now we have all three sides of the triangle, so we can use the definition of sine to find sin R:

sin R = opposite/hypotenuse = PQ/PR = 5/13

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Step-by-step explanation:

when you have a problem you can tell me please follow

When a distribution is skewed to the left, the mean is less than the median because the tail of the distribution is longer on the left side, which pulls the mean towards the lower values.

On the other hand, when a distribution is skewed to the right, the mean is greater than the median because the tail of the distribution is longer on the right side, which pulls the mean towards the higher values.

In a symmetric distribution, where the data is evenly distributed around the center, the mean and median are equal.

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Answer:

D a reflection over the x axis by a reflection over the y axis

Step-by-step explanation: if u put the triangle on the button left up then move it to the upper right it’s congruent.

Answer: A rotation of 270° clockwise about the origin followed by translation left 1 and up 10

Step-by-step explanation:

Answer:

2(x + 5)

twice — 2

the sum of an unknown number and 5 — x + 5

The 80% confidence interval estimate for the average browsing time is approximately 12.648572 minutes to 14.548572 minutes.

To construct an 80% confidence interval estimate of the average browsing time for the population of crownfashion.com visitors this week, we can use the following formula:

Confidence Interval = \(\bar{X}\) ± Z \(\times\)  (σ/√n)

Where:

\(\bar{X}\) is the sample mean (average browsing time) = 13.6 minutes,

Z is the Z-score corresponding to the desired confidence level (80% confidence level corresponds to a Z-score of 1.28),

σ is the population standard deviation = 5.2 minutes,

n is the sample size = 49.

Plugging in these values, we can calculate the confidence interval as follows:

Confidence Interval = 13.6 ± 1.28 \(\times\) (5.2/√49)

Simplifying the expression:

Confidence Interval = 13.6 ± 1.28 \(\times\) (5.2/7)

Confidence Interval = 13.6 ± 1.28 \(\times\) 0.742857

Confidence Interval = 13.6 ± 0.951428

The lower bound of the confidence interval is 13.6 - 0.951428 = 12.648572, and the upper bound is 13.6 + 0.951428 = 14.548572.

Therefore, the 80% confidence interval estimate for the average browsing time is approximately 12.648572 minutes to 14.548572 minutes.

The margin of error indicated by the interval is half of the width of the confidence interval, which is (14.548572 - 12.648572) / 2 = 0.95 minutes.

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The equation of the line would be y = (-3/4)x + 5.

What is the slope-point form of the line?

For the line having slope "m" and the point (x1, y1) the equation of the line passing through the point (x1, y1) having slope 'm' would be

                      y - y1 = m(x - x1)

The given equation is \(y=-\frac{3}{4}x-17\)

The required line is parallel to the given line.

and we know that the slopes of the parallel lines are equal so the slope of the required line would be m = -3/4

And the required line passes through (8, -1)

so by using slope - point form of the line,

      y - (-1) = (-3/4)(x - 8)

      y + 1 = (-3/4)x - (-3/4)8

       y + 1 = (-3/4)x + 24/4

       y = (-3/4)x + (12/2 - 1)

       y = (-3/4)x + 5

Hence, the equation of the line would be y = (-3/4)x + 5.

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3. You have 300 euros. What is this amount in US dollars.

Answer:

462.20 US dollars ans,,.

Step-by-step explanation:

Sorry I can help you only for this question

Answer:

Step-by-step explanation:

Answer:

5 years

Step-by-step explanation:

by year five they both had the same amount

400-35=365

do that 5 times

225

100+25=125

do that 5 times

225

Answer:

C. 48 m

Step-by-step explanation:

The two vertical sides add up to be (8*2) m = 16m.

The two horizontal sides can be added up to (14*2) m = 28m.

(The top horizontal side can be found by pushing the line in the middle up to the level of the other two portions of the same side.)

Finally, add the leftover two sides (2*2) m = 4m.

16+28+4 = 48.

Hope this helped!

Answer:

C-48

Step-by-step explanation:

hi , you need to fill in the blanks and then add them all together

The following triangles are congruent.

Yes AAA

Answer:

60

Step-by-step explanation:

180÷3=60

if it is unclear or you need more explanation, ask freely.

According to the given statement The final row of numbers represents the coefficients of the quotient. In this case, the quotient is y² + 4y - 16

To divide using synthetic division, follow these steps:

1. Set up the synthetic division table by writing down the coefficients of the dividend in descending order. In this case, the dividend is y³ - 64, so the coefficients are 1, 0, 0, and -64.

2. Write down the divisor, which is y+4, and change the sign, making it -4.
4 | 1   0   0  -64

3. Bring down the first coefficient, which is 1, into the leftmost column.
4 | 1   0   0  -64
           1

4. Multiply the divisor (-4) by the number you just brought down (1), and write the result beneath the next coefficient. Add this new number to the next coefficient.

4 | 1   0   0  -64
        1
 ------------
        -4

5. Repeat steps 3 and 4 until you have gone through all the coefficients.

 -4 | 1   0   0  -64
       1   4
    ------------
      -4   16

6. The final row of numbers represents the coefficients of the quotient. In this case, the quotient is y² + 4y - 16.

So, (y³ - 64) ÷ (y+4) = y² + 4y - 16.

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Answer:

The name of the solid with 20 faces that are congruent equilateral triangles is icosahedron.

The solid you are referring to is called an icosahedron. An icosahedron is a specific type of convex polyhedron that has 20 faces. In this case, all 20 faces are congruent equilateral triangles. Option d is correct answer.

To understand why this solid is called an icosahedron, let's break down the term. "Icosa-" comes from the Greek word for twenty, while "-hedron" means face. Therefore, an icosahedron is a polyhedron with twenty faces.

Each face of an icosahedron is an equilateral triangle, meaning that all three sides of the triangle are equal in length, and all three angles are equal to 60 degrees. Since all 20 faces are congruent, they have the same side lengths and angles.

The icosahedron has a total of 12 vertices and 30 edges. The vertices are the points where three edges meet, and the edges are the line segments connecting the vertices. The icosahedron has a symmetrical and regular structure, making it one of the five Platonic solids.

An icosahedron is a convex polyhedron with 20 congruent equilateral triangle faces, 12 vertices, and 30 edges.

Option d is correct answer.

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Refer to the attachment

Answer:

50000

Step-by-step explanation:

Answer:

The answer is 50000

Step-by-step explanation:

Answer:

167

Step-by-step explanation:

180-130-37

=13 (sum of angles in a triangle)

180-13

=167 (angles on a straight line)

Answer:

B 37/11

Step-by-step explanation:

Brainliest please

Answer:

B. 37/11

Step-by-step explanation:

Multiply 3 by 11 and get 33

and add 4

37

improper fraction: 37/11

Answer:

Step-by-step explanation:

Answer:

Hi! The answer is \(1.5\)

Step-by-step explanation:

\(Kelly + Matt + Bo = 3\)

\(3, People / 2, Pizzas\)

\(3/2 = 1.5\)

\(1.5, Pizzas\)

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