Mathematics College

John plays a game in which he throws a baseball java questions

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Answer 1
Which statement correctly describes these electric field lines?

Related Questions

A series contains 18 numbers and has a sum of 4,185. The last number of the series is 275. What is the first number?

Answers

The sum of arithmetic series is given by:
Sn=n/2(a1+an)
where:
n=number of terms
a1=first term
an=nth term
but
n=18, an=275, Sn=4185
plugging the values in the formula we get:
4185=18/2(a1+275)
simplifying this we get:
4185=9(a1+275)
dividing through by 9 we get:
465=a1+275
thus
a1=465-275
a1=190

Answer: first number is 190

Answer:

B on edge 190

Step-by-step explanation:

function is a line points (3,2), (5,8), and (8,y) what is y

Answers

y = mx + b

[tex](3;\ 2)\to x_1=3;\ y_1=2\\\\(5;\ 8)\to x_2=5;\ y_2=8\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\to m=\dfrac{8-2}{5-3}=\dfrac{6}{2}=3[/tex]

Therefore we have: y = 3x + b.

Put the coordinates of the point (3; 2) to the equation of the line:

[tex]2 = 3\cdot3+b\\2=9+b\ \ \ |-9\\b=-7[/tex]

Therefore we have: y = 3x - 7

Substitute the coordinates of the point (8; y) to the equation of the line:

[tex]y = 3\cdot8-7=24-7=17[/tex]

Answer: y = 17.

What are the zeros of the function?

F (X) = x^3 - x^2 - 6x

A) -1, 0, and 3

B) -3, 0, and 1

C) -3, 0, and 2

D) -2, 0, and 3

Answers

Try this explanation:
if to re-write the function f(x)=x(x²-x-6), then to make up the equation x(x²-x-6)=0, it is possible to find the zeros requred:
x(x-3)(x+2)=0, x=0;x=-2;x=3.

answer: D -2;0;3
The answer is B. Just finished the test. 

Help me please!! I wanna make my mother proud>3

Find the product.

4(−12)(−3)
A) −144
B) −96
C) 144
D) 72

Answers

I believe it's C.

Hope this helps!
a) learn to use your calculator

b) recognize that the even number of minus signs will mean the product is positive, and that 4*3 = 12, so this becomes 12² = 144 (math facts you have memorized).

The appropriate choice is ...
   C) 144

Find (tan A+B) if A and B are in quadrant 2 with tan A=(1/3) and sin B=(20/29)

Answers

Final answer:

The value of [tex]\( \tan(A + B) \)[/tex] in quadrant 2, where [tex]\( \tan A = \frac{1}{3} \)[/tex] and [tex]\( \sin B = \frac{20}{29} \)[/tex], is [tex]\( \frac{11}{57} \)[/tex].

Explanation:

To find [tex]\( \tan(A + B) \)[/tex], we can use the formula [tex]\( \tan(A + B) = \frac{\tan A + \tan B}{1 - \tan A \tan B} \)[/tex]. Given that \[tex]( \tan A = \frac{1}{3} \)[/tex] and [tex]\( \sin B = \frac{20}{29} \)[/tex], we can determine [tex]\( \cos B \)[/tex] using the fact that [tex]\( \sin^2 B + \cos^2 B = 1 \)[/tex]. Therefore, [tex]\( \cos B = \sqrt{1 - \sin^2 B} = \frac{21}{29} \)[/tex].

Now, substitute the values into the formula for [tex]\( \tan(A + B) \)[/tex]:

[tex]\[ \tan(A + B) = \frac{\tan A + \tan B}{1 - \tan A \tan B} \][/tex]

[tex]\[ = \frac{\frac{1}{3} + \frac{20}{29}}{1 - \frac{1}{3} \cdot \frac{20}{29}} \][/tex]

[tex]\[ = \frac{\frac{29 + 60}{87}}{\frac{87 - 20}{87}} \][/tex]

[tex]\[ = \frac{\frac{89}{87}}{\frac{67}{87}} \][/tex]

[tex]\[ = \frac{89}{67} \][/tex]

Therefore, [tex]\( \tan(A + B) = \frac{11}{57} \)[/tex] in quadrant 2.

Final answer:

To find (tan A+B) when A and B are in quadrant 2, find the components of A and B along the x- and y-axes using A = 34.0 m, θA = 63.0°. Calculate Ax = A cos θA and Ay = A sin θA. Then use the formula tan(A + B) = (tan A + tan B) / (1 - tan A tan B) to find the sum of the tangents.

Explanation:

First, we find the components of A and B along the x- and y-axes. From the problem, we know that A = B = 34.0 m, and θB = 63.0°. We find the x-components by using Ax = A cos θ, which gives Ax = 34.0 cos 63.0° = -15.23 m.

Similarly, we find the y-components by using Ay = A sin θ, which gives Ay = 34.0 sin 63.0° = 29.88 m.

Now, we can find the sum of the tangents of A and B using the formula tan(A + B) = (tan A + tan B) / (1 - tan A tan B). Substituting the given values, we have tan(A + B) = (1/3 + Ay/Ax) / (1 - (1/3)(Ay/Ax)).

hey can you please help me posted picture of question

Answers

The points in the graph that will intersecr in the x axis would be 0. It has no points since it just involves a y axis line and ita pointa do not pass in the x axis. So the best and most correct answer is B. 0.
The nature of roots can help us to determine the answer to this question and discriminant can be used to determine the nature of the roots.

Discriminant = b² - 4ac

b = coefficient of x term = -9
a = coefficient of squared term = 4
c = constant term = 9

So, Discriminant = 81 - 4(4)(9) = -63

Since, the discriminant is negative, the equation will have complex zeros.This means its graph will not cross x-axis at any point.

So, the answer to this question is zero, option B

A certain​ country's postal service currently uses 6​-digit zip codes in most areas. how many zip codes are possible if there are no restrictions on the digits​ used? how many would be possible if the first number could not be 0​?

Answers

If any digit can be 0 to 9 with no restrictions, the number of possible zip codes is ...
  10×10×10×10×10×10 = 10⁶ = 1,000,000.
Final answer:

For a 6-digit zip code with no restrictions, there would be 1,000,000 possible zip codes. If the first digit could not be a '0', the number of possible zip codes would decrease to 900,000.

Explanation:

We're dealing with a counting problem here. This problem involves basic principles of combinatorics.

Firstly, if there are no restrictions on the digits used, each of the six positions in the zip code can hold any digit from 0 to 9. There are 10 choices (from 0 to 9) for each of the 6 digits in the zip code which leads to 10^6 = 1,000,000 possible zip codes.

However, if the first number could not be 0, there are 9 possible choices for the first digit and 10 choices for each of the remaining 5 digits. Therefore, the number of possible zip codes would be 9 * 10^5 = 900,000.

Learn more about Combinatorics here:

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2(3y-1)3(y-4)=13 please show step by step

Answers

[tex]2(3y-1)+3(y-4)=13\\\\2\cdot3y+2\cdot(-1)+3\cdot y+3\cdot(-4)=13\\\\6y-2+3y-12=13\\\\\underbrace{6y+3y}_{9y}\underbrace{-2-12}_{-14}=13\\\\9y-14=13\ \ \ |\text{add 14 to the both sides}\\\\9y=27\ \ \ |\text{divide both sides by 9}\\\\\boxed{y=3} [/tex]

If 75 capsules of a drug cost $60, what would 40 capsules of the same drug cost?

Answers

75 capsules = $60

1 capsule = 60 ÷ 75 = $0.80

40 capsules = $0.80 x 40 = $32


Answer: $32
You’re getting riped of for that price

A display that shows how the values in a data set are distributed

Answers

Answer: Line Plot

Step-by-step explanation: A line plot is a display that shows how the values in a data set are distributed.

Answer: histogram

Step-by-step explanation:

Regina's mom bought her some bracelets. There were a total of 85 bracelets in 5 packages.

Which of the following equations would describe n, the number of bracelets that were in one package?

A. n + 5 = 85

B. n ÷ 5 = 85

C. n - 5 = 85

D. n × 5 = 85

Answers

The answer your looking for is B

Find a unit vector that is perpendicular to the vector 5, −4

Answers


[tex]( \frac{4}{ \sqrt{41} } , \frac{5}{ \sqrt{41} } )[/tex]

PLZ HELP NOOOOW!!

Sarah ran around a track 1 1/2 times. The track in 3/4 of a mile long.

How many miles did Sarah run?

Answers

Hey there! The answer is 1 1/8 mile.

To find the amount of miles Sarah ran, we need to multipy the length of the track by the times she run that distance.
[tex]1 \frac{1}{2} \times \frac{3}{4} = \frac{3}{2} \times \frac{3}{4} = \frac{9}{8} = 1 \frac{1}{8} [/tex]

Rembember: multiplying a fraction means you have to multiply the numerator by the numerator (of the other fraction) and the denominator by the denominator (of the other fraction)

The answer is 1 1/8 mile.
~ Hope this helps you!

A snow storm left 1.25 feet of snow on the ground overnight. At noon today, the temperature will be above freezing and the snow will melt. If the melting snow is modeled by the equation y = -1 3 x + 1.25, how long will it take for the snow to melt away?

Answers

y = -13x + 1.25
0 = -13x + 1.25
-1.25 = -13x
3.75 = x

then,

3.75 hours  to 3 hours 45 minutes 

Which ordered pair is the best estimate for the solution of the system of equations? y=−12x+4y=12x−3 (7, 1) (7, 0) (7, 0.5) (7.5, 0.5)

Answers

A quick way of doing this is to use a graphing calculator and find the point in which both graphs intersect. Another way of doing this is to substitute. Substitute the x’s and y’s of each equation in for each ordered pair and look for the one that is true. Though what’s confusing me is that, the solution is (0.3,0.5).
ANSWER

[tex](7,0.5)[/tex]

EXPLANATION

We want to solve the system;

[tex]y = - \frac{1}{2} x + 4...(1)[/tex]
and

[tex]y = \frac{1}{2} x - 3...(2)[/tex]

Add equations (1) and (2) to get,

[tex]y + y = 4 + - 3[/tex]

This implies that,

[tex]2y = 1[/tex]

[tex]y = \frac{1}{2} [/tex]

or

[tex]y = 0.5[/tex]

We put y=½ into equation (2) to get,

[tex] \frac{1}{2} = \frac{1}{2} x - 3[/tex]
Multiply through by 2 to get,

[tex]1 = x - 6[/tex]
This implies that,

[tex]x = 1 + 6 = 7[/tex]

Therefore the best estimate for the system of equations is
[tex]
(7,0.5)[/tex]
The correct answer is C

What is 3km 9hm 9dm +7km 7dam

Answers

3+9+9+7+7=36
Good night hope thid helps
using conversion
 
let km be the base unit

9 hm = 0.9km
9 dm = 0.0009 km
7 dam = 0.07km

adding all of the values

3 + 0.9 + 0.00009 + 7 + 0.07 = 10.97009

It costs $0.05 to send a text message and $0.10 to send a picture on your cell phone. You spend $4 and send five more text messages than pictures. How many text messages, x, and pictures, y, did you send?

Answers

The first thing we must do for this case is to define variables:
 x: text messages
 Y: pictures
 We write the system of equations:
 0.05x + 0.10y = 4
 x = y + 5
 Solving the system we have:
 x = 30
 y = 25
 Answer:
 you send:
 30 text messages
 25 pictures
Final answer:

This is a problem of system of linear equations. We form two equations from the conditions given in the problem, and solve the system of equations to find the number of text messages and pictures sent.

Explanation:

This is a problem of system of linear equations. Here are two conditions mentioned: The total cost and difference of number of text messages and pictures.

Let's denote the number of text messages as x and pictures as y as per your question.

From the cost, we have the equation: $0.05x + $0.10y = $4.

From the difference of the number of sent messages and pictures, we have: x = y + 5.

Now we can substitute x from the second equation into the first one, get the value for y, and calculate the value for x after. Here you have step-by-step solution for your problem.

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change -115 degrees to radian measure in terms of pi

Answers

-23\pi/36 or -115\pi/180.

In order to find this, you need to take the degrees [ in this case -115 ] and multiply that by \pi/180. Then simplify that result if possible.

Hope this helps!

Answer:

-23/36 pi

Step-by-step explanation:

(-115 x pi) / 180

Coco's garden has 888 tomato plants, 444 pepper plants, 333 squash plants, and 666 pumpkin plants.
For every 777 plants in Coco's garden, there are 2_____ plants.

Answers

8 + 4 + 3 + 6 = 21There are 21 plants altogether.21 is 3 times 7.For every 21 plants there are 6 pumpkin plants, sofor every 7 plants, there are 2 pumpkin plants.

At a college, 4/5 of the students take an English class. Of these students, 5/6 Composition. Which fraction of the students at the college take Composition?

Answers

If I’m doing it correctly it’s 2/3 but I haven’t done it in a while
Final answer:

The fraction of students who take Composition at the college is 2/3.

Explanation:

To find the fraction of students who take the Composition class, we need to multiply the fraction of students who take an English class (4/5) by the fraction of English students who take the Composition class (5/6).

Multiplying these fractions, we get (4/5) * (5/6) = 20/30 = 2/3.

Therefore, 2/3 of the students at the college take Composition.

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To test upper h 0 : mu equals 72 versus upper h 1 : mu less than 72​, a simple random sample of size nequals20 is obtained from a population that is known to be normally​ distributed, and the sample standard deviation is found to be 6. complete parts ​(a) and ​(b) below.

Answers

We solve using equation [tex] \beta \sqrt{x} \sqrt[n]{x} \lim_{n \to \infty} a_n \alpha [/tex]⇔ ∈ ω. ㏒

Q # 8 please solve the question

Answers

Let the two numbers be x and y

Their sum is 20, so we can write
x + y = 20

Their difference is 14, so we can write:
x- y = 14


Adding the two equations, we get:

2x = 34
x = 17

Using the value of x, in first equation, we get:

17 + y = 20
so,
y = 3

Thus the two numbers are 17 and 3.

So, option a is the correct answer
For this case we have the following system of equations:
 x + y = 20
 x-y = 14
 Where,
 x: real number
 y: real number
 Solving the system we have:
 x = 17
 y = 3
 Therefore, the numbers are:
 17 and 3
 Answer:
 17 and 3
 option 1

what is the best estimate for the total weight of these cold meat 1 7/8 lb of Bologna 1 and 1/2 pounds of ham and 7/8 lb of roast beef

Answers

well, it seems to be just a sum of all quantities, now let's firstly convert the mixed fractions to "improper"and then add them up,

[tex]\bf \stackrel{mixed}{1\frac{7}{8}}\implies \cfrac{1\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{15}{8}} \\\\\\ \stackrel{mixed}{1\frac{1}{2}}\implies \cfrac{1\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{3}{2}}\\\\ -------------------------------\\\\ \cfrac{15}{8}+\cfrac{3}{2}+\cfrac{7}{8}\quad \stackrel{LCD~8}{\implies }\quad \cfrac{15+12+7}{8}\implies \cfrac{34}{8}\implies \stackrel{simplified}{\cfrac{17}{4}}\implies 4\frac{1}{4}[/tex]

What is the slope of the line y = 3?

Answers

The slope of a line y = any constant real number is 0.
 
This is because the equation y = a number represents a straight horizontal line on a graph.

Evaluate log416 -2 1/2 2

Answers

16 = 4²

So, by the definition of logarithms

[tex]\log_4{16}=2[/tex]

Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. How many grams of coffee beans foes Diana uses when company comes?

Answers

The question uses proportional reasoning to determine the quantity of coffee beans Diana would need to make a different volume of coffee. By setting up a ratio based on the original 30 grams for 48 fluid ounces, we can calculate the necessary amount of coffee beans for any new volume of coffee required which is 60 grams.

The question relates to proportion and unit conversion, both key concepts in mathematics, specifically in dealing with ratios and measurements. Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. If 'company comes' and she needs to make more or less coffee, the same ratio of coffee beans to water would apply. To determine the amount of coffee beans Diana would need for a different volume of coffee, you would set up a proportion based on the given ratio and solve for the unknown quantity.

To calculate the amount of coffee beans for a new volume, you can use the following steps:

Determine the new volume of coffee in fluid ounces.

Set up a ratio comparing 30 grams of coffee beans to 48 fluid ounces.

Use the new volume in the ratio to solve for the amount of coffee beans required.

For example, if Diana wants to make 96 fluid ounces of coffee for her company, the proportion would be:

30 grams / 48 fluid ounces = X grams / 96 fluid ounces

Solving this gives us X = (30 grams * 96 fluid ounces) / 48 fluid ounces = 60 grams. Hence, Diana would need 60 grams of coffee beans for 96 fluid ounces of coffee.

Mr. Sanchez bought 2 magazine for 9.95 each and 1 book for 14.95 if the sales tax is 6% what is the total cost of Mr. Sanchez purchases

Answers

rst you have to find the price of everything together

2 magazines for 9.95 each and a book for 14.95

9.95 + 9.95 + 14.95 = 34.85

Next you convert the percent to a decimal

6% = 0.06

Now you put a one in the ones place

1.06

Multiply this by the cost of everything

34.85 * 1.06 = 36.94

The answer is $36.94

Hope this helps!

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The exponential function represented by the table can be written in the form y=ab^x. Find the values for a and b.

Answers

If this function can be written in the form y = ab^x, then we see that when x is inputted as 0, y is outputted as 4. This means that
                                          4 = ab^0
                                          a = 4
The value of a is 4.
We see that when x = 1, y = 2 thus
                                           y = 4b^x
                                          2 = 4(b^1)
                                          b = 1/2
The answers are a = 4 and b = 1/2

The exponential function gotten from the table is given by y = 4(1/2)ˣ

Exponential function

An exponential function is in the form:

y = abˣ

where y, x are variables, a is the initial value of y and b is the multipliers.

From the table, at point (0, 4):

4 = ab⁰a = 4

At point (3, 1/2):

y = abˣ1/2 = 4b³b = 1/2

The exponential function gotten from the table is given by y = 4(1/2)ˣ

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Which of the following sets shows all the numbers from the set {0, 0.5, 1, 2.5, 3} that make the inequality 2a + 3 ≥ 8 true?
{2.5, 3}
{1, 2.5, 3}
{0, 0.5, 1}
{0.5, 1}

Explain how you got your answer
PLEASE AND THANK YOU

Answers

It’s A because I used a calculator

Answer: A

Step-by-step explanation:

this is not a question i just need someone to make sure i did #16 right. Thanks;)

Answers

I think the length of pool in inches is actually 12*12=144 because there are 12 inches in a foot.
Also, the scale factor would be 144/16 = 9.
1 foot = 12 inches
 so length of pool = 12 inches x 12 feet = 144 inches

144 /16 = 9
 so the scale factor would be 1:9
 which means the blueprint is 9 times smaller than the real pool



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