A and B are independent events. Find P(A and B). P(A)=1/5, P(B)=3/7

Answers

Answer 1

Answer:

Step-by-step explanation:


Related Questions

Which equation can be simplified to find the inverse of y = 2x²?
O1/y=2x²
Oy=1/2x²
O-y= 2x²
O x= 2y²

Answers

Answer:

y=1/2x²

Step-by-step explanation:

y=2x-²

y=1/2x²

The equation can be simplified to find the inverse of y = 2x² is y=1/2x², the correct option is B.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

We are given that;

Equation y = 2x²

Now,

To find the inverse of a function, you need to swap the x and y variables and solve for y. So, the equation that can be simplified to find the inverse of y = 2x² is x = 2y². You can simplify it by dividing both sides by 2 and taking the square root of both sides. The inverse function is y = ±√(x/2).

Therefore, by the equation the answer will be y=1/2x²

Learn more about equations here;

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Help please someone please give me the correct answer
I will mark you brainliest for the correct answer!!
This is a test!!!

Answers

Answer:

Angle X and W are vertical

Step-by-step explanation:

It's wrong statement

Find the value of y.
Question 18 options:

A)

9.850

B)

18.610

C)

65.825

D)

124.365

Answers

Answer:

[tex]\Huge\boxed{B.18.610}[/tex]

Step-by-step explanation:

Hello There!

We can find y by using trigonometric ratios

sine, cosine and tangent

[tex]tan= \frac{opposite}{adjacent}[/tex]

the opposite of the angle that has a measure of 28 degrees is y and the side that is adjacent to the angle is 35

so...

[tex]tan28=\frac{y}{35}[/tex]

now we solve for  y using basic algebra

we want to isolate the variable (y) using inverse operations

to get rid of the 35 we multiply each side by 35

[tex]\frac{y}{35} =y\\tan28*35=35tan28[/tex]

now we let the calculator do the rest of the work

[tex]35tan(28)=18.60983011[/tex]

*round to the nearest thousandth*

we're left with

y = 18.610

hence your answer is B

What is the value of n that makes 10n = 50 true?

Answers

Answer:

n=5

Step-by-step explanation:

50 divided by 10 = 5

Answer:

n=5

Step-by-step explanation:

To figure out n we must divide 50 and 10.

50 ÷ 10 = 5

So n=5

Which r-value suggests a weak negative correlation?
A. r = 0.13475
B. r = 0.95768
C. r = -0.13475
D. r = -0.95768

Answers

Answer:

r = -0.13475

Step-by-step explanation:

Here, we want to select a value for a weak negative correlation

When a correlation is week, its value is usually less than -0.5

In this case, we have our correct answer as r = -0.13475

rentwood and Sun City are 51 miles away from each other. How far away would the cities be on a map that has a scale of 3 inches:17 miles?
Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Answers

Answer:

Step-by-step explanation:

51mi(3in/17mi)=9in

Keenan bought 9 books about plants and 6 books about fish. He also bought 8 science magazines. Each book cost $20 and each magazine cost $3. How much did Keenan spend in all?

Answers

Answer:

$324

Step-by-step explanation:

Cost per books = $20

Book cost = $20 * (9 + 6) = 20 * 15 = $300

Cost per magazine = $3

Number of magazines = 8

Magazone cost = 8 * $3 = 24

Total cost = $300 + $24

= $324

90% of the stores at a shopping mall sell clothing. If 63 of the stores sell clothing, how many total stores are at the mall? ​

Answers

There are 70 stores in the mall.
70 x .90 (or 90%)= 63 stores that sell clothing.

PLEASE HELO ME AND EXPLAIN PLEASE. AND PLEASE SHOW IN STEPS!! i will mark brainliest if you get it correct!

Answers

Step-by-step explanation:

The height of the swipe card is given by :

[tex]h(t)=-3t^2+15t+18[/tex] .....(1)

We need to find the maximum height of the swipe card and the time to reach the maximum height.

For maximum height, put dh/dt = 0

So,

[tex]\dfrac{d}{dt}(-3t^2+15t+18)=0\\\\-9t+15=0\\\\t=\dfrac{15}{9}\\\\t=1.67\ s[/tex]

It will take 1.67 seconds to reach the maximum height.

Now, put t = 1.67 s in equation (1).

[tex]h(1.67)=-3(1.67)^2+15(1.67)+18\\\\=34.68\ feet[/tex]

Hence, the maximum height of the swipe card is 34.68 feet and the time to reach this height is 1.67 s.

If ∠ A and ∠ B are supplementary angles and ∠ A is seventeen times as large as ∠ ​B, find the measures of ∠ A and ∠ B.

Answers

supplementary angles = 180°

A : B

17 : 1

170 : 10

Pleasr help fast it's due today

1. Consider the surface area of the following pyramid.
224 am
4 am
4 am
2.24 cm
4 cm
3 cm
4 cm
4 cm
3 cm
13 cm
4 cm
4 cm
3 cm
4 cm
4 cm
3 cm
(a) Calculate the total surface area of the pyramid. Show your work.

Answers

the answer is 26.88 i wish that helped :)

homies can one of yalls do this im confused

Answers

Answer:

ΔWUV⁓ΔSRT

Step-by-step explanation:

∠W⁓∠S

∠U⁓∠R

p which- x2+8x+p=0 will have equal roots​

Answers

Answer:

The correct answer is the 162xsquare

PLEASE I NEED HELP!!!!!!!!!!?

Answers

Answer:

35

Step-by-step explanation:

What is 6 - 8? Please provide answers with the - sign.

PLEASE HELP ME!

Answers

Answer: -2

Step-by-step explanation: 6-6=0, and 0-2= -2, so that is how i got my answer

Answer:

-2

Step-by-step explanation:

6 - 8 = -2

please mark as brainliest

Each side of a square is 3inches long.a student increases the length of each side by 3inches.the are of the new Square is how many times the area of original square?
A=2
B-3
C=4
D=a

Answers

The answer is Letter B

based on sample one, how many students from the entire student population preferred the 8:30 am start time​

Answers

It’s was uhhhhhh 18?

Find x (the answer is a decimal) Picture posted below.

Answers

Answer:

x = 37.5

hope that helps

Victoria has a points card for a movie theater.
She receives 65 rewards points just for signing up.
She earns 12.5 points for each visit to the movie theater.
She needs at least 215 points for a free movie ticket.

Use the drop-down menu below to write an inequality representing vv, the number of visits she needs to make in order to get a free movie ticket.

Answers

Answer: she needs to go 12 times

Step-by-step explanation:

Answer:

*12=3x+4m-3x2.......THE ANSWER IS 10

Step-by-step explanation:

divide 12 by 3

add that answer by 4

subract that by 3

then multiply it by 2

and it gives you... (10)

Your Welcome

A telecommunications company in a small town had 450 phone subscribers before they introduced a plan for newly joining members. The company recorded an approximate 50% increase each month in the number of new phone subscribers, where they had one new subscriber at the start of the plan. The number of phone subscribers x months after the plan was launched is modeled by the function below.

Answers

Answer:

450 x (1 + 0.5) ^ X = Phone subscribers

Step-by-step explanation:

Since a telecommunications company in a small town had 450 phone subscribers before they introduced a plan for newly joining members, and the company recorded an approximate 50% increase each month in the number of new phone subscribers, where they had one new subscriber at the start of the plan, to determine the number of phone subscribers x months after the plan was launched, the following function must be considered and solved:

450 x (1 + 0.5) ^ X = Phone subscribers

So, for example, in 3 months, the number of subscribers would be the following:

450 x (1 + 0.5) ^ 3 = 1,518.75

Thus, in 3 months, the company would have 1,518 subscribers.

Can someone helpppp plssss

Answers

Answer:

angleQ+angleR is 180degrees because of the properties of isoceles trapezoid. So, if you set equation and solve, you'll get the fact that x is 12, and angleR is 130degrees, and angleQ is 50degrees. According to the properties of isoceles trapezoid, angleQ is the same as angleT. So, angleT is 50degrees

Answer:

Step-by-step explanation:

Zoom in giving 5 stars to right answer

Answers

Answer:

Can u take a better picture?

A 10 ft tall tent standing next to a woman
casts a 16 ft shadow. If the woman is 5 ft
tall, then how long is her shadow?

Answers

Answer:

8 ft

Step-by-step explanation:

Set up a proportion: 10/16=5/x

Solve for x: 80=10x

x=8

What is the proportion for x

Answers

12x15=18(3x+4)
180=54x+72
-72 -72
108=54x
/54 /54
2=x

X=2 the other person is a d0uche for answering like that so I answered instead of them

Find the cube roots of unity in standard form (a+bi). Use exact values.

Answers

Every non-zero complex number has three cube roots. In general, any non-integer exponent, like  

1

3

here, gives rise to multiple values. The way we find them is by multiplying  

z

by 1 before exponentiating. We write  

1

using Euler's Identity to the  

2

k

power for integer  

k

. That's

PLEASE HELP!!!!!

find the area of the polygon.

Answers

Answer:

2 cm is were youll find the polygon at. it shouldnt be hard to see the area of were the polygon is

Answer:

208 cm²

Step-by-step explanation:

14 cm × 16 cm = 224 cm²

14 cm - 6 cm = 8 cm

8 cm × 2 cm = 16 cm²

224 cm² - 16 cm² = 208 cm²

Help me on this please, giving more points than usual for this.

Answers

Answer:

the angle is = 50

Step-by-step explanation:

8x+2+70+60=180° (interior angles of a triangle add up to 180°)

8x+132=180

8x=180-132

8x=48

divide with the coefficient of x both sides

x=6

substitute

(8(6)+2)+70+60=180

50+70+60=180

180=180

Someone please help me on this please

Answers

Constant of proportionality k=y/x
k=14/4=3.5
k=17.5/5=3.5
k=21/6=3.5
k=24.5/7=3.5
Therefore, k=3.5

Which pair of equations below is a result of constructing the altitude, h, in Triangle ABC?


sinA= h/c

sinC= h/a


sinA= h/c

sinB= b/c


sinA= b/c

sinC= b/a


sinA= h/a

sinB= b/a


40 points!!!

Answers

Answer:

a

Step-by-step explanation:

Bc i just did on edge

The pair of equations below is a result of constructing the altitude, h, in Triangle ABC is A; sin C = h/a and sin A = h/c.

What are trigonometric identities?

Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.

We know:

[tex]\sin(\theta) = \dfrac{\text{Length of perpendicular}}{\text{Length of Hypotenuse}}[/tex]

So from the attached figure;

sin C = h/a

sin A = h/c

These expressions have an h term in common. We can combine them if we can find forms of the expressions in terms;

h = a (sin C)

h = c (sin A)

Thus, option A is correct pair.

Learn more about trigonometric;

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Write in standard form:
the quotient of 29 and r


1. 29r
2. 29 divided by r
3. 29 - r

Answers

Answer:

2

Step-by-step explanation:

quotient of two numbers means that you divide those two numbers.

Answer:

2. 29 divided by r

Step-by-step explanation:

this is division, so the key term divided by must come in.

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