BRAINLIEST ASAP. Please someone help

The probability that this batter will hit a home run on this pitcher's next pitch is approximately 0.074, or 7.4%.

To determine the probability that the batter will hit a home run on the pitcher's next pitch,

we need to consider the probabilities of the pitcher throwing a fastball and a curveball, as well as the probabilities of hitting a home run on each type of pitch.

Given that the pitcher throws fastballs 80% of the time and curveballs 20% of the time, we can calculate the probability of the batter facing each type of pitch:

- Probability of facing a fastball = 80% = 0.8
- Probability of facing a curveball = 20% = 0.2

Now, we need to determine the probability of hitting a home run on each type of pitch:

- Probability of hitting a home run on a fastball = 8% = 0.08
- Probability of hitting a home run on a curveball = 5% = 0.05

To find the overall probability of hitting a home run on the pitcher's next pitch, we can use the following formula:

Overall probability = (Probability of facing a fastball * Probability of hitting a home run on a fastball) + (Probability of facing a curveball * Probability of hitting a home run on a curveball)

Plugging in the values we have:

Overall probability = (0.8 * 0.08) + (0.2 * 0.05)
Overall probability = 0.064 + 0.01
Overall probability = 0.074

Therefore, the probability that this batter will hit a home run on this pitcher's next pitch is approximately 0.074, or 7.4%.

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The sum of all the possible events is 1, which means that all the events are independent of the others, in that case

P(A or C) = P(A)+P(C) = 0.1 + 0.8 = 0.9

P(B and C) = P(B)*P(C) = 0.1 * 0.8 = 0.08

Answer:

2

Step-by-step explanation:

2x - y = -1

-y = -2x - 1

y = 2x + 1

parallel line = same slope

Given a sample mean is 82, the sample size is 100, 90% confidence level and the population standard deviation is 20, the margin of error is 3.29.

To calculate the margin of error, we need to use the formula:

Margin of error = Z-score * (population standard deviation / square root of sample size)

Where the Z-score corresponds to the confidence level. Since we have a 90% confidence level, the Z-score is 1.645.

Plugging in the given values, we get:

Margin of error = 1.645 * (20 / sqrt(100))
Margin of error = 1.645 * 2
Margin of error = 3.29 (rounded to 2 decimals)

Therefore, the margin of error is 3.29.

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Answer:

I had this question before... I think the answer is -10 or 4

Step-by-step explanation:

Answer: 4

Step-by-step explanation:

Whenever you have to add a negative number, it is the same as simply subtracting it. So 7 + (-3) is the same as 7 - 3 which is equal to 4.

Answer:

g= 1

Step-by-step explanation:

-3+5+6g=11-3g

-3+5=11-9g

-3-11+5=-9g

-9=-9g

1=g

you want to first isolate the variables on one side. from there you calculate all the real numbers together. then you divide the number being multiplied with teh variable by the number that was calculated on the other side.

Once you have a singluar amount of the variable, you know you have your answer.

Answer:

  47 therms

Step-by-step explanation:

A $78.40 gas bill has a $22 monthly connection fee and charges of $1.20 per therm. You want to know the number of therms being charged.

Let t represent the number of therms at $1.20 each. The gas bill chargest are ...

  1.20t +22 = 78.40

Subtracting 22 gives ...

  1.20t = 56.40

Dividing by 1.20 tells the number of therms:

  t = 56.40/1.20 = 47

The company used 47 therms.

Answer:

A Book cover costs = 8.70

A Binder costs = 8.80

8.70 + 8.80 = $17.5

For Brianna

A Book cover costs = 13.75

A Binder costs = 16.75

13.75 + 16.75 = $30.50

For Britney

Answer:

2$a book, 4,5$a binder

Step-by-step explanation:

4 books...... 5 binders..... 30,50$

2 books...... 3 binders.... 17,50$/×2

=>

4 books..... 5 binders..... 30,50$

4 books...... 6 binders...... 35$

///////

6-5 =1binder cost 35 - 30,50 =4,5$

3 ×4,5 =13,5$three binders

17,5 - 13,5 =4$cost 2 books covers

4:2=2$cost a book covers

The interval of convergence for the given power series is (2, 8).

To find the interval of convergence for the given power series. We have the power series:

∑(n=2 to ∞) ((x-5)ⁿ)/(3ⁿ)

To find the interval of convergence, we'll use the Ratio Test. For the Ratio Test, we need to compute the limit:

L = lim (n → ∞) |(a_(n+1)/a_n)|

For our series, a_n = ((x-5)ⁿ)/(3ⁿ). Therefore, a_(n+1) = ((x-5)(n+1))/(3(n+1)). Now, let's compute the ratio:

|(a_(n+1)/a_n)| = |(((x-5)(n+1))/(3(n+1))) / (((x-5)ⁿ)/(3ⁿ))|

Simplify the expression:

|(a_(n+1)/a_n)| = |(x-5)/3|

The series converges if L < 1. So we have:

|(x-5)/3| < 1

Now, we'll solve for x to find the interval of convergence:

-1 < (x-5)/3 < 1

Multiply each term by 3:

-3 < x-5 < 3

Add 5 to each term:

2 < x < 8

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The required correct answers are;

1 - (1 1/3 x, 1 1/3 y)

4 - (3 1/10 x, 3 1/10 y)

Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size.

The following algebraic rules represent a dilation that is an enlargement:

1 - (1 1/3 x, 1 1/3 y)

4 - (3 1/10 x, 3 1/10 y)

The scale factor in both of these rules is greater than 1, which means that the dilation is an enlargement. In rule 1, the scale factor is 1 1/3, and in rule 4, the scale factor is 3 1/10.

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Complete question:

Which of the following algebraic rules that represent a dilation that is an enlargement?

Select 2 correct answers

1 - (1 1/3 x, 1 1/3y)

2 - (1/2 x, 1/2y)

3 - ( 0.1 x, 0.1 y)

4 - (3 1/10 x, 3 1/10y)

The value of this golden ratio = 1/2 (1 + √5) = 1.618

Ratio:

Majority of the explanations for ratio and proportion use fractions. A ratio is a fraction that is expressed as a:b, but a proportion says that two ratios are equal. In this case, a and b can be any two integers. The foundation for understanding the numerous concepts in mathematics and science is provided by the two key notions of ratio and proportion. We apply the concepts of ratio and proportion every day, for example, while dealing with money in business or when preparing any meal, etc. Students occasionally struggle to understand the difference between ratio and proportion.

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Answer:

Possible perimeters:

50 inches, 28 inches, 22 inches, 20 inches.

Step-by-step explanation:

Given that:

Area of triangle = 24 square inches

Side lengths of rectangle are integers.

To find:

Possible perimeter of this rectangle = ?

Solution:

Here, options are missing, so let us calculate all possibilities for the perimeter.

The formula for Area of a rectangle is given as:

\(A = Length \times Width\)

Let us make integer factors of 24 first of all.

\(24 = 1 \times 24\\24 = 2 \times 12\\24 = 3 \times 8\\24 = 4 \times 6\)

These are the four possibilities of length and breadth.

Let us calculate the possible perimeter for each case using the formula for perimeter:

\(Perimeter = 2\times (Length + Width)\)

1st possible option:

\(Perimeter = 2\times (1+ 24) = 50\ inches\)

2nd possible option:

\(Perimeter = 2\times (2+ 12) = 28\ inches\)

3rd possible option:

\(Perimeter = 2\times (3+ 8) = 22\ inches\)

4th possible option:

\(Perimeter = 2\times (4+ 6) = 20\ inches\)

Answer:

yes

Step-by-step explanation:

Step-by-step explanation:

Two ratios are given to us and we need to tell whether they are equivalent or not . Firstly let us say we have two ratios q:p and r:s . Here p & q are co-primes and r & s are also co-primes. Then the two ratios will be equal if and only if

Theefore , the Ratios are ,

\(\begin{cases}\tt 4 : 18 \\\tt 2:9 \end{cases}\)

Here we see that the ratio 2:9 is in simplest form that is HCF of 2 & 9 is 1 . But here 4:18 is not in simplest form . HCF of 4 & 18 is not 1 it's 2 .On dividing numerator and denominator by 2 , we have ,

\(\tt= \dfrac{4}{18}\\\\ = \tt \dfrac{4 \div 2}{18\div 2}\\\\ = \boxed{\orange{\tt \dfrac{2}{9}}}\)

Therefore since the Ratios are equal in the simplest form . Therefore the Ratios are equal.

The difference between the perimeters of the two rectangles will be 4x + 3

The formula for the perimeter of rectangle is given as :

                P = 2(L + B)

           Where P = perimeter of the rectangle

                       L = length of the rectangle

                       B = breadth of the rectangle

Now we have given two rectangle on is smaller than the other.

To find the difference between the perimeter of the two rectangles. We will first calculate the perimeter of both the rectangle.

Perimeter of the bigger rectangle = 2( 5x + 3 + 2x)

                                                            = 2(7x + 3)

                                                             = 14x + 3

Perimeter of the smaller rectangle = 2(2x + 3x)

                                                              = 2*5x

                                                              =10x

Difference between the two perimeters = (Perimeter of the bigger rectangle) – (Perimeter of the smaller rectangle)

                                                                      = (14x + 3) – 10x

                                                                      = 4x + 3

Thus the difference between the perimeters of the two rectangle will be 4x + 3

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We need to first identify the center of the circle.

We see that the coordinate point of the center of the circle is (-1, -2).

The equation of a circle is given with the equation

where h is x, k is y, and r is the radius of the circle.

Therefore, we can plug in the coordinates first to find the h and k of the equation.

Then, we need to determine r.

The circle intersects points (-6, -2) and (4, -2). We can simply subtract the x-coordinates from each other to find the diameter of the circle.

Finally, we know the radius is half of the diameter:

We can plug in the radius into the equation.

Therefore, our final equation is Choice D:

Answer:

7. y=46,x=44

Step-by-step explanation:

srq=y(alternate angles)

38+y=84(sum of the two opposite interior angles equals to exterior)

therefore y=46

x+y=90(sum of the two adjacent angles of a right angled triangle)

x+46=90

x=44

therefore y=46 and x=44

Answer:

y = 2x + 5

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = A (1, 7 ) and (x₂, y₂ ) = B (- 3, - 1 )

m = \(\frac{-1-7}{-3-1}\) = \(\frac{-8}{-4}\) = 2 , then

y = 2x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (1, 7 )

7 = 2(1) + c = 2 + c ( subtract 2 from both sides )

5 = c

y = 2x + 5 ← equation of line

The cost of the other 2 panes of glass is $5.70. If this is wrong, I am sorry :( Have a great day!

Answer:

She missed 6 questions.

Step-by-step explanation:

88% can be written as (88/100) or as 0.88.

You can set this as a ratio problem which is,  

88/100 = correct/50

correct = (88/100)*50       (multiply both sides by 50)

correct = 44

So, 50 (total questions) - 44 = 6 incorrect questions

Answer:

41

Step-by-step explanation:

Answer: look up alaskan pipeline

Step-by-step explanation:

The answer of Area and perimeter will be 60 and 37.2. of that given triangle.

What is are of triangle?
The territory included by a triangle's sides is referred to as its area. Depending on the length of the sides and the internal angles, a triangle's area changes from one triangle to another. Square units like m2, cm2, and in2 are used to express the area of a triangle. Triangles can be divided into three types based on the lengths of their sides, and these are: Scalene. Isosceles. Equilateral.

The perimeter will be P = sum of all three side.
Side a = \(\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }\) = 10√2side b = 4√5side c = 10√2height = 6√5Area is = 1/2 (base * height) = 60 cm²Perimeter = a+b+c = 37.2 cm
Hence the Area and perimeter will be 60 and 37.2 respectively.

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Answer:

x = 1

y = 5

Step-by-step explanation:

5x - 2y = -5

5x + 6y = 35

=> 5x + 6y = 35

=> 5x - 5x + 6y = 35 - 5x

=> 6y = 35 - 5x

=> 6y/6 = 35/6 - 5/6x

=> y = 35/6 - 5/6x

=> 5x - 2 (35/6 - 5/6x) = -5

=> 5x - 35/3 + 5/3x = -5

=> 15/3x -35/3 + 5/3 = -15/3

=> 20/3x -35/3 = -15/3

=> 20/3x -35/3 + 35/3 = -15/3 + 35/3

=> 20/3x = 20/3

=> 20/3x * 3 = 20/3 * 3

=> 20x = 20

=> 20x/20 = 20/20

=> x = 1

=> 5x + 6y = 35

=> 5(1) + 6y = 35

=> 5 + 6y = 35

=> 5 -5 + 6y = 35 -5

=> 6y = 30

=> 6y/6 = 30/6

=> y = 5

So, x = 1

     y = 5