Could someone help explain how to do this please?

Could Someone Help Explain How To Do This Please?

Answers

Answer 1
I would recommend watching The Organic Chemistry Tutor just search Law of Cosines and search for his channel he explains this really well it’s really easy you’ll get your head around it quite fast
Answer 2

Step-by-step explanation:

this picture it's can help you

Could Someone Help Explain How To Do This Please?

Related Questions

A linear function has an x-intercept of
-2 and a y-intercept of 6. Which of the
following is an equation of the linear
function?
PLEASEE IM DOING A TEST!!

Answers

Answer:

y = -1/3x + 6

Step-by-step explanation:

You have the formula y = mx + b

We can put in:

b=6

m=-2/6=-1/3

y=-1/3x+6

Simple Random Sample of Size 25:
Chances are, since you are studying AP Statistics, you plan to earn at least a bachelor's degree from college. According to the U.S. Census Bureau, 29% of Americans age 25 years or older have already earned a bachelor's or more advanced degree. You decide to randomly select 58 adults over the age of 25 to ask if they have earned at least a bachelor's degree. Describe the sampling distribution of the proportion of respondents who have earned at least a bachelor's degree.

Answers

Answer:

By the Central Limit Theorem, it is approximately normal with mean 0.29 and standard deviation 0.0596

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

According to the U.S. Census Bureau, 29% of Americans age 25 years or older have already earned a bachelor's or more advanced degree.

This means that [tex]p = 0.29[/tex]

You decide to randomly select 58 adults over the age of 25 to ask if they have earned at least a bachelor's degree.

This means that [tex]n = 58[/tex]

Describe the sampling distribution of the proportion of respondents who have earned at least a bachelor's degree.

By the Central Limit Theorem, it is approximately normal with mean [tex]\mu = p = 0.29[/tex] and the standard deviation is [tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.29*0.71}{58}} = 0.0596[/tex]

the slope of line p is ___ and the slope of line q is ___

line p
a. -3
b. 1.5
c. 3

line q
a. -3
b. 1.5
c. 3

Answers

Answer:

Slope of line p = 3

Slope of line q = -3

Step-by-step explanation:

An easy way to find slope is to pick one point and move up the line to find the next point with exact coordinates.

For line p, we can use point (1,-1). Moving farther up the line, the next point that lands exactly on a coordinate, is (2,2) The slope of a line is the rise of a line over its run. Or, [tex]\frac{rise}{run}[/tex]. From the first point, we move up exactly 3 units, and over 1 unit to reach the next point. We rise 3 units and run 1 unit. In fraction form, [tex]\frac{3}{1}[/tex]. This simplifies to 3. The slope of line p is 3.

----------------------------------------------------------------------------------------------------------------

For line q, we can use the same method. Notice first that the line slopes down, which means the slope will be negative.

Now, we can pick a point on the line. Let's use the same one we used for line p, point (1,-1). The next point up the line is point (0,2). From point (1,-1), we rise 3 units, and run -1 unit. The run, we can tell, is negative, because it goes to the left. The slope is [tex]\frac{3}{-1}[/tex]. Simplify this to -3. The slope of line q is -3.

----------------------------------------------------------------------------------------------------------------

I hope this helps ^^ Good luck :)

Y=?x+? MARKED BRAINLIEST!!

Answers

Answer:

y = 3x + 3

slope = 3 y-intercept = 3

Step-by-step explanation:

check:

y = 3(2) + 3

y = 6 + 3

y = 9

(2,9)

Rewrite without absolute value sign.
|x+12| if x>-11

Answers

|-11 + 12| = |-1|. Take away absolute value signs to get 1.

Solve the problem help plsss l will give you brainlest

Answers

Answer:

24/35

Step-by-step explanation:

Answer:

24/35

Step-by-step explanation:

turn 1 1/7 into a mixed number

1 1/7=8/7

multiply the numerator and the denominator of 8/7 and 3/5 to get 24/35

-2, 6, -18, 54. What is the 12th term

Answers

-2, 6, -18, 54

the pattern is: multiplying by (-3) after each term.

-2, 6, -18, 54, -162, 486, -1458, 4374, -13122, 39366, -118098, 354294.

Answer: 354294.

1/8 plus 3/4: plz tell me I need help

Answers

the answer should be 7/8

Answer:

7/8

Step-by-step explanation:

Find the common denominator:

4 and 8 are both the least common multiple of 8.

So that would be the common denominator.

To get 3/4 to become a fraction of 8, you would multiply both 3 and 4 by 2.

[tex]\frac{1}{8} + \frac{3}{4} = \frac{1}{8} + \frac{6}{8} = \frac{7}{8}[/tex]

the perimeter of square f is 2/3 less than the perimeter of square g . the side lengths of square f are each x meters , and the sides of square g are each 1/4(x-2/3) meters. which expression also represents the side lengths of square g A 1/4x - 1/6 B 1/4f - 2/3 C 1/4f - 3/7 D 1/4x - 11/12​

Answers

Answer:

A. 1/4x - 1/6

Step-by-step explanation:

1/4(x - 2/3) = 1/4x - 1/4(2/3) = 1/4x - 1/6

Correct choice is A

An American football field is 20 yards longer than a soccer field. An American football field is 120 yards long. How long is a soccer field? Circle the correct answer.

Answers

Answer:

A soccer field is 100 Yards.

Step-by-step explanation:

120-100=100yds.

Which of the expressions are equivalent to the one below? Check all that
apply.
(5 x 1) - 7
Multiple choice !!
A. (5 - 1) - 7
B. (1 x 5) - 7
C. 5 x (1 + 7)
D. 7 + (1 x 5)

Answers

The answer is B because (1x5)-7 equals-2

Which of the following does the number line represent?




w < 3


w < -3


w > -3


w > 3

Answers

Answer:

w>3

Step-by-step explanation:

so the answer is w>3 because it is making use of number line

and the number line has two sides which are the positive and negative sides

according to the question, the answer is w>3

Please help me dont understand

Answers

Answer:

[tex]x\geq 1364[/tex]

Step-by-step explanation:

11+0.04m [tex]\geq[/tex] 65.56

11-11+0.04m [tex]\geq[/tex] 65.56-11

0.04m [tex]\geq[/tex] 54.56

0.04m/0.04 [tex]\geq[/tex] 54.56/0.04

m [tex]\geq[/tex] 1364

Help I need it by 12 tonight

Answers

the answer should be C

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

[tex]\frac{x^{2} + 19x + 102}{4(x + 5)(x + 7)}[/tex]

Step-by-step explanation:

I have factored and multiplied lwh to get the volumes

Vol. = [tex]\frac{2x - 1}{(2x - 3)(x + 5)}[/tex] [tex]\frac{2(2x - 3)}{3x - 1}[/tex][tex]\frac{(3x - 1)(x + 3)}{(2x - 1)(x + 3)}[/tex] + [tex]\frac{x - 5}{3x + 2}[/tex][tex]\frac{3x + 2}{4}[/tex][tex]\frac{x - 2}{(x + 7)(x - 5)}[/tex]

      = [tex]\frac{4}{x + 5}[/tex] + [tex]\frac{x - 2}{4(x + 7)}[/tex]

      = [tex]\frac{4(4)(x + 7) + (x - 2)(x + 5)}{4(x + 5)(x + 7)}[/tex]

      =  [tex]\frac{16x + 112 + x^{2} + 3x -10}{4(x + 5)(x + 7)}[/tex]

      = [tex]\frac{x^{2} + 19x + 102}{4(x + 5)(x + 7)}[/tex]

If I have done everything correctly, then [tex]\frac{x^{2} + 19x + 102}{4(x + 5)(x + 7)}[/tex] is the total volume

This a real exercise in factoring and multiplying and adding fractions

8 Yelena needs to swim a total of 8 miles this week. So far, she swam 5 miles. Use the equation 5 + m= 8 to find how many more miles Yelena needs to swim.​

Answers

Answer:

3

Step-by-step explanation:

5 + m = 8

m=8-5

m=3

Find the value of the trigonometric ratio. Make sure to simplify the fraction if needed.

Answers

Answer:

3/4

Step-by-step explanation:

Tan A = opp/adj

Tan A = 30/40

= 3/4

The height of a toy rocket launched from 64 foot observation tower function of elapsed time since the launch is modeled in the equation below h(t)=-16t^2+48t+64 at  what approximate elapsed time (s) will the toy rocket be at a height of 90 feet?

Answers

Answer:

0,70 s

Step-by-step explanation:

We have to solve the associated equation:

-16t^2 + 48t + 64 = 90

1) divide each member by 2

-8t^2 + 24t + 32 = 45

2) add at both member -45

-8t^2 + 24t + 32 -45 = 45-45

-8t^2 + 24t - 13 = 0

3). multiply the two members by -1

8t^2 - 24t + 13 = 0

4) find Δ/4 with the reduce formula

Δ/4 = 144 -104 = 40

5) find the approximate  solutions with the reduce formula

t1 = (12 + 6,42)/8 = 2,29 s

t2 = (12 - 6,42)/8  = 0,70 s

we have to take the smallest value because the biggest describe when the rocket will reach 90 feet when it is descending

Find the difference -9.6-7.3

Answers

Answer:

-9.6-7.3 = -16.9

Step-by-step explanation:

The graph shows the area of forest cover in various regions of the world. Through afforestation, forest habitats have been established in areas that previously didn’t have forests. In which geographic region has this approach been most successful?

Answers

Answer:

Step-by-step explanation:

If the graph looks like the one attached, then East Asia is the only region showing an increase in forest cover over time.

Answer:

east asia

Step-by-step explanation:

got it right

Ms, Garza opened an account with a deposit of $5,000. The account earned annual simple interest. She did not make any additional deposits or withdrawals. At the end of 4 years, the balance of the account was $6,500.
What is the annual interest rate on this account?

Answers

Your answer is going to 7.5%

Identify the lateral area and surface area of a right cone with radius 7 cm and slant height 15 cm.

Answers

Answer:

lateral area is  329.7 and the surface area is 483.56

Step-by-step explanation:

Lateral area = [tex]\pi (7)(15) = 105\pi = 329.7\\[/tex]

Surface area = lateral area + base area

Base area= [tex]\pi r^{2}[/tex] = [tex]\pi (7)^{2}[/tex] = [tex]49\pi[/tex]

Surface area = 105[tex]\pi + 49\pi = 154\pi = 483.56[/tex]

A cycle wheel has a diameter of 56 cm.
17 Calculate the circumference of the
wheel.
278 Find the distance covered in 100 revo-
lutions.​

Answers

Formula for circumference is C= πd, meaning pi multiplied by diameter. I will complete the question using both 3.14 for pi, and the pi key on the calculator, as I am not sure what the rules are for your mathematics class.

Formula C=πd, where diameter (given: 56) is 56 and pi is 3.14.

C=πd

  = 3.14 x 56

  =175.84

∴ The circumference of the wheel is about 175.8cm.

To find how much distance covered in 100 revolutions, we must multiply the distance covered in one revolution by 100.

175.84 x 100= 17584

The question does not ask to convert to meters or kilometers so I may leave it like this.

If you are told otherwise, follow the rules for converting.

∴ The distance covered in 100 revolutions is 17,584cm.

Formula C=πd where d equals 56 and pi is the full value of pi (3.1415926....)

C=πd

 = π x 56

 =175.929

As you can see, we get a more accurate answer, but again, it is all up to your class rules.

∴ About 175.93 cm circumference

Revolutions:

175.93 x 100 = 17593

∴ About 17, 593cm.

I hope this helps!

an exercises 4-7, find the values of X and Y to satisfy the equation​

Answers

Answer:

see explanation

Step-by-step explanation:

Equate the values on the left to like values on the right side

4

4x + 2i = 8 + yi , then

4x = 8 ⇒ x = 2

y = 2

Then x = 2, y = 2

5

- 10x + 12i = 20 + 3yi , then

- 10x = 20 ⇒ x = - 2

3y = 12 ⇒ y = 4

Then x = - 2, y = 4

6

2x - yi = 14 + 12i , then

2x = 14 ⇒ x = 7

- y = 12 ⇒ y = - 12

Then x = 7, y = - 12

7

54 - [tex]\frac{1}{7}[/tex] yi = 9x - 4i , then

9x = 54 ⇒ x = 6

- [tex]\frac{1}{7}[/tex] y = - 4 ( multiply both sides by - 7 )

y = 28

Then x = 6, y = 28

Answer:

4x + 2i = 8 + yi , then

4x = 8 ⇒ x = 2

y = 2

Then x = 2, y = 2

PLEASE HELP! GIVING 20 POINTs

Answers

Answer:

Box A-10

Box B-15

Box C-20

i think

Answer:

Box A= x+5

Box B= x+5

Box C= x+5

Step-by-step explanation:

So i was literally over here trying to big brain this problem, literally stressing like "Oh my gosh why is this so difficult wth is going on rn?!" when all i had to do was find the equation(which has been sitting on my paper for the last 15 minutes) and plug it in.

-_-

Chile anyways so the equation to the problem is 3(x+5) =20. And all you have to do is split the (x+5) into three parts on the tape diagram and it would all equal 20.

True or false
Please help

Answers

Answer:

false

Step-by-step explanation:

True or False.
Please help me

Answers

Answer:

False

Step-by-step explanation:

Hey guys I need help with this

Answers

Answer:

use the reverse Pythagorean therm BC= 4 DE= 4.8

Step-by-step explanation:

The square root of 5(squared) - 3(squared) = 4

the square root of 8(squared) - 6.4(squared) = 4.8

round the numbers to estimate the quotient. 29 1/5÷4 6/7​

Answers

Answer:

29 / 5 = 5.8

Step-by-step explanation:

To round a mixed number to the nearest whole number, simply look at the fraction part.

If the fraction is more than one half, round up.

If this fraction is less than one half, round down.

In the number 29 1/5, 1/5 is LESS than one half, so we round down.

In the number 4 6/7, is 6/7 is MORE than one half, so we round up.

29 1/5 rounded to the nearest whole number is 29.

4 6/7 rounded to the nearest whole number is 7.

And, 29/7 = 5.8

Therefore, the estimated quotient is 5.8.

MAX POINTS!!!!! ARCS & ANGLES NEED TO KNOW HOW TO DO IT. ANSWERS ALSO VERY MUCH APPRECIEATED !!!FRESHMAN CLASS GEOMETRY!!!

Answers

Answer:

#1

12x + 5 = 1/2(83 + 95) 12x + 5 = 8912x = 84x = 7

#2

9x + 7 = 1/2(198 + 7x - 8)18x + 14 = 198 + 7x - 811x = 176x = 16

#3

15x - 8 = 1/2(16x + 1 + 5x + 19)30x - 16 = 21x + 209x = 36x = 4

#4

20x - 4 = 360 - 2*7220x =  220x = 11

#5

13x - 1 = 2(6x + 11)13x - 1 = 12x + 22x = 23

#6

46 = 1/2(21x - 5 - x - 23)20x - 28 = 9220x = 120x = 6

#7

6x - 21 = 1/2(13x - 3 - 3x - 11)12x - 42 = 10x - 142x = 28x = 14

#8

2x + 1 = 1/2(9x - 14 - 4x + 7)4x + 2 = 5x - 7x = 9

#9

9x - 4 = 180 - 769x - 4 = 1049x = 108x = 12
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