SOH-CAH-TOA..............

SOH-CAH-TOA..............

Answers

Answer 1

Answer:

Step-by-step explanation:

oh nice,  SOH CAH TOA   :P

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

SOH CAH TOA is really helpful,  it also reminds me of south pacific for some reason  :D  

Anyway back to math

we want to find an angle and we have the Hyp and the adj sides

to that angle soooo

let's pick CAH since it's got   Adj / Hyp , which we know and will find that unknown angle for us..  :)

Cos(Ф) = Adj / Hyp

Ф = arcCos( adj / Hyp)

Ф = arcCos( 14 /28 )

Ф = arcCos(.5)    ( if you happen to be good with trig functions you can already tell what it's going to be :P  w/o using the calculator)

Ф = 60 °

1a = 60 °

for 1b we know the opp and they hyp and want to find the angle. So let's use SOH  

sin = Opp / Hyp

sin(Ф) = 5/20

Ф = arcSin(5 /20)

Ф = arcSin ( 1/4)

Ф = 14.4775 °

1b = 14 °  ( rounded to nearest degree )


Related Questions

Cristian divides 6 cups of fruit juice equally among 8 friends. Two of his friends don't drink the juice. How much juice is left over?
A. 3/4 cup
B. 1.5 cups
C. 4 1/2 cups
D. 5.25 cups

Why?
please help

Answers

The answer is B.
Each person would get .75 cups. And there are two who don’t drink juice. .75 + .75 is 1.5

Answer:

B. 1.5 cups

Step-by-step explanation:

6/8 = 0.75

each person gets 0.75 each

Since 2 people chose not to drink the juice. the left overs would be 0.75*2

0.75*2=1.5

Angela plans to buy new flooring for her bedroom. Her bedroom floor is a rectangle that is 7.9 meters by 6.2 meters. a. How many square meters of floor space does her bedroom have? meters squared b. Suppose the flooring costs $5.90 per square meter. How much will the flooring cost? (use a dollar sign and NO SPACES)

Answers

part A is 48.98 meters squared. part B is $288.982.

Step-by-step explanation:

To find the area of the flooring you multiply 7.9 and 6.2 which gives you 48.98 meters squared. Then for part B you take your product from part A and multiply it by $5.90, giving you $288.982.

I hope this helps

Which, if any , of the following equality’s is incorrect ?

Answers

Answer:

x = 32 is incorrect

Step-by-step explanation:

[tex]32 = \frac{1}{2} (x + 16) \\ \\ 32 \times 2 = x + 16 \\ \\ 64 = x + 16 \\ \\ x = 64 - 16 \\ \\ x = 48 \\ \\ y =360-(48+114 + 16) \\ \\ y =360-178 \\ \\y = 182 \\ \\ 4 \times n = 6 \times 3 \\ \\ n = \frac{18}{4} \\ \\ n = 4.5[/tex]

The radius of a circle is 7 m. Find its circumference in terms of pi.

Answers

Answer:

Step-by-step explanation:

Circumference is 2pir

So 14pi meters

If f(x)=3x and g(x)=1/x what is the domain of (gof)(x)?

Answers

Answer:

f=7x g=3   x=18

Step-by-step explanation:

What is the total cost of a video game that is $59.99 with a sales tax of 7%?

Answers

Answer:

Your total will be $64.19

Step-by-step explanation:

I know this because 7% is $4.20 and so if i add $59.99 to $4.40 i will get $64.19:)

Enter the value of 2 • 43 +4.
PLEASE ANSWER QUICK

Answers

Answer: 90

Step-by-step explanation:

2*43+4

86+4

90

Answer:

94

Step-by-step explanation:

43 +4 = 47

47 x2 = 94

Bella invested $7,400 in an account paying an interest rate of 5 3/8 % compounded continuously. Lily invested $7,400 in an account paying an interest rate of 5 3/4% compounded quarterly. After 17 years, how much more money would Lily have in her account than Bella, to the nearest dollar?​

Answers

Answer:

$1078

Step-by-step explanation:

Round to the nearest tenth

Answers

Answer:

Step-by-step explanation:

Pythagorean theorem: b² + 6² = 14²

b² = 14² - 36² = 160

b = 4√10

sin(A) = 6/14 = 3/7

∠A = arcsin(3/7) ≈ 25.4°

∠B ≈ 90° - 25.4° = 64.6°

Find the Area of the Shaded Region.
Round to the nearest tenth if necessary.
6 m
(5 m
15 m
15 m

Answers

Answer:

195 m

Step-by-step explanation:

Both shapes follow the formula: A = bh

The Big Square:

15 x 15 = 225

The Small Square:

6 x 5 = 30

225 - 30 = 195

what is the slope of the line 8y = -16​

Answers

Answer: y=-2

Step-by-step explanation:

8y=-16

divide by 8 on each side

y=-2

1. A train at a carnival covers a distance of 4 miles in 20 minutes. How
far does the train travel in 80 minutes?

Answers

16 miles
Since it’s 4 x 4





If ABCD is a parallelogram, m A
B
(3x + 4)º
D

C
Equation:
X=
(PLEASE HELP)

Answers

Answer:

x is 44 because

3x+4+x=180

4x=180-4

4x=176

x=44

a and b are positive integers and a–b = 3. Evaluate the following:
27/1/3 b/9/ 1/2 a

Answers

Answer:

[tex]\dfrac{1}{27}[/tex]

Step-by-step explanation:

Given that,

a-b = 3

We need to find the value of [tex]\dfrac{27^{\dfrac{1}{3}b}}{9^{\dfrac{1}{2}a}}[/tex].

We know that,

[tex]27=3^3\\\\9=3^2[/tex]

So,

[tex]\dfrac{27^{\dfrac{1}{3}b}}{9^{\dfrac{1}{2}a}}=\dfrac{3^3^({\dfrac{1}{3}b})}{3^2^{\dfrac{1}{2}a}}\\\\=\dfrac{3^b}{3^a}[/tex]

We know that : [tex]\dfrac{x^p}{x^q}=x^{p-q}[/tex]

So,

[tex]\dfrac{3^b}{3^a}=3^{b-a}[/tex]

Since, b-a = -3. So,

[tex]3^{b-a}=3^{-3}\\\\=\dfrac{1}{3^3}\\\\=\dfrac{1}{27}[/tex]

So, the value of the given expression is equal to [tex]\dfrac{1}{27}[/tex].

find the length of the radius

Answers

Answer:

6

Step-by-step explanation:

Use the given information combine with the Pythagorean theorem to set up an equation. The Pythagorean theorem states that ([tex]a^2 + b^2 = c^2[/tex]), where (a) and (b) are the legs of the right triangle (sides that are adjacent to the right angle); and (c) is the hypotenuse (the side opposite to the right angle). Substitute in the given values in the problem,

[tex]a^2 + b^2 = c^2[/tex]

Substitute,

[tex]QO^2 + QP^2 = PO^2[/tex]

[tex]x^2 + 8^2 = (4+x)^2[/tex]

Simplify, distribute

[tex]x^2 + 64 = x^2 + 8x + 16[/tex]

Inverse operations,

[tex]x^2 + 64 = x^2 + 8x + 16\\-x^2\\\\64 = 8x + 16\\-16\\\\48 = 8x\\/8\\\\6 = x[/tex]

Eli buys milk and lemons at the store.
He pays a total of $50.59.
He pays a total of $6.35 for the milk.
He buys 7 bags of lemons that each cost the same amount.

How much does each bag of lemons cost?

Answers

Answer:

$6.32

Step-by-step explanation:

m + L = total $

6.35 + 7L = 50.59

7L = 44.24

L = 6.32

549 customers are 36% of how many customers?

Answers

Answer:

513

Step-by-step explanation:

549- 36 = 513

Will give brainliest if you awnser all math questions
1. Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.

Which savings account is growing fastest?

They are growing at the same rate.
simple interest
compounded quarterly

2.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.

Use the graph shown to estimate the amount in Account A in 30 years.

$340

$350

$370

$400

3.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.

Use the graph shown to estimate the amount in Account B in 30 years.

$400

$410

$420

$450

4.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.

What is the approximate difference between the two accounts in 20 years?

$100

$50

$25

$10

5.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.

Why is the amount much higher in the compounded interest account?

The account started with more money.

The account is in a better bank.

The interest rate is higher.

The account pays interest on both the principal and the interest accumulated.

Answers

Answer: Compounded quarterly, 350, 420, 25, the account pays interest on both the principal and the interest accumulated.

Step-by-step explanation:

Question 1: Compounded quarterly is growing fastest because it's broken down more than what simple interest does and therefore is faster instead.

Question 2: Account A in 30 years would be 350, I did this problem and eyeballed it. Trust me.

Question 3: Account B in 30 years would be 420.

Question 4: The approximate difference between the two accounts in 20 years would be 25.

Question 5: If the rate of interest is annual and the interest is compounded quarterly then the number of years is 4 times and the rate of annual interest is one-fourth. Therefore, the account pays interest on both the principal and the interest accumulated.

Hope this helps

The simple interest and compound interest are solved for both the curves

a) The compound interest is growing fastest

b) the amount in Account A in 30 years A = $ 350

c) The amount in Account B in 30 years is B = $ 420

d) The difference between the two accounts in 20 years = $ 25

What is Compound Interest?

Compound interest is interest based on the initial principle plus all prior periods' accumulated interest. The power of compound interest is the ability to generate "interest on interest." Interest can be added at any time, from continuously to daily to annually.

The formula for calculating Compound Interest is

A = P ( 1 + r/n )ⁿᵇ

where A = Final Amount

P = Principal

r = rate of interest

n = number of times interest is applied

b = number of time periods elapsed

Given data ,

a)

Let the 2 curves be represented as A and B

Now , the amount invested by A = $ 200

The rate of simple interest = 2.5 %

And , the amount invested by B = $ 200

The rate of compound interest = 2.5 %

So , we can say that since it is more thoroughly broken down than basic interest is, compounded quarterly growth is the quickest.

b)

The amount for A in 30 years is given in the graph

A = $ 350

c)

The amount for B in 30 years is given in the graph

B = $ 420

d)

The amount for A in 20 years is given in the graph = $ 300

The amount for B in 20 years is given in the graph = $ 325

The difference between the two accounts in 20 years = $ 325 - $ 300

The difference between the two accounts in 20 years = $ 25

Hence , the compound interest is solved

To learn more about compound interest click :

https://brainly.com/question/21270833

#SPJ3

A die is rolled 3 times. What is the probability of getting 1's on each roll?

Answers

0.5

Step-by-step explanation:

1/6 times 3 equals 0.5 or 3/6 or 1/2

the answer is 0.5 hope this helps

the lowest point of the dry lake bed in the example has an elevation of -18 3/4 ft what number represents the change in elevation from the start of the path to the lowest point in the dry lake bed show your work (my teacher said she messed it up so it’s the same question just the numbers are -18 3/4 - (-12 1/2) explain how !

Answers

Answer:

the lowest point of the dry lake bed in the example has an elevation of -18 3/4 ft what number represents the change in elevation from the start of the path to the lowest point in the dry lake bed show your work (my teacher said she messed it up so it’s the same question just the numbers are -18 3/4 - (-12 1/2) explain how !

Mr. Herron drives for .9 hours (54 minutes) to reach El Rancho every day for work. If his average speed was 25 miles/hour, how far does Mr. Herron live from El Rancho?

Answers

22.5 miles
In one hour he would have driven 25 miles
So 25x .9 = 22.5 miles

I purchase a new gaming system on opening night. Since I am one of the first 100 customers to purchase the system, the store gives me a 20% discount of the regular cost. If I pay $500 for the gaming system at the discounted price, what is the regular cost of the gaming system?


I WILL GIVE BRAINLIEST ​

Answers

Answer:

2500

Step-by-step explanation:

50020%50020%

Convert 20%20% to a decimal.

5000.25000.2

Divide 500500 by 0.20.2.

2500

What is the answer to 6= m + 6

Answers

Answer:

m= 0

Step-by-step explanation:

6=m+6

6−6=m+6−6

m=0

brainliest would be appreciated. have a great day :)

what fraction has the same value as 8/24​

Answers

Answer:

8/24 = 1/3

Step-by-step explanation:

divide numerator and denominator by 8

what would the answer to this be?

Answers

Answer:

B because for ASA to work the side has to be surrounded with the angles and <ACD = <CAB has to be true and for

SAS to work the angle has to be surrounded by sides so

AD = BC has to be true.

Hope this helped and brainliest please

A recent newspaper article claimed that more people read Magazine A than read Magazine B. To test the claim, a study was conducted by a publishing representative in which newsstand operators were selected at random and asked how many of each magazine were sold that day. The representative will conduct a hypothesis test to test whether the mean number of magazines of type A the operators sell, μAμA, is greater than the mean number of magazines of type B the operators sell, μBμB. What are the correct null and alternative hypotheses for the test?
A. H0:μA−μB=0Ha:μA−μB>0H0:μA−μB=0Ha:μA−μB>0
B. H0:μA−μB<0Ha:μA−μB>0H0:μA−μB<0Ha:μA−μB>0
C. H0:μA−μB=0Ha:μA−μB≠0H0:μA−μB=0Ha:μA−μB≠0
D. H0:x¯A−x¯B=0Ha:x¯A−x¯B>0H0:x¯A−x¯B=0Ha:x¯A−x¯B>0
E. H0:μB−μA=0Ha:μB−μA>0H0:μB−μA=0Ha:μB−μA>0

Answers

Answer:

Option A.

Step-by-step explanation:

The representative will conduct a hypothesis test to test whether the mean number of magazines of type A the operators sell, μAμA, is greater than the mean number of magazines of type B the operators sell, μBμB. What are the correct null and alternative hypotheses for the test?

To verify this, the distribution used is [tex]\mu_{A} - \mu_{B}[/tex]

The null hypothesis is an equality, which means that it is:

[tex]H_{0} = \mu_{A} - \mu_{B} = 0[/tex]

At the alternate hypothesis, we want to test if the mean number of type A is greater than type B, that is, the distribution is positive. So

[tex]H_{A} = \mu_{A} - \mu_{B} > 0[/tex]

So the correct answer is given by option A.

help!!!!! will give big brain

Answers

What is the brain
Explanation

How do you solve this? Or what’s the answer?

Answers

Answer:

6.7

Step-by-step explanation:

Make a proportion (similar triangles):

(15) / (10+x) = 6/x

15x = 60 + 6x

9x = 60

x = 6.7

Lauren is going to invest $740 and leave it in an account for 9 years. Assuming the
interest is compounded monthly, what interest rate, to the nearest tenth of a percent,
would be required in order for Lauren to end up with $920?

Answers


Don’t Go into no links on here there a scam end up

Answer:

2.4

Step-by-step explanation:

A complex electronic system is built with a certain number of backup components in its subsystems. One subsystem has four identical components, each with a probability of 0.2 of failing in less than 1000 hours. The subsystem will operate if any two of the four components are operating. Assume that the components act independently.a) Find the probability that exactly two of the four components last longer than 1000 hours.b) Find the probability that the subsystem operates longer than 1000 hours.

Answers

Answer:

a) 0.1536 = 15.36% probability that exactly two of the four components last longer than 1000 hours.

b) 0.9728 = 97.28% probability that the subsystem operates longer than 1000 hours.

Step-by-step explanation:

For each component, there are only two possible outcomes. Either they fail in less than 1000 hours, or they do not. The probability of a component failing in less than 1000 hours is independent of any other component. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

One subsystem has four identical components, each with a probability of 0.2 of failing in less than 1000 hours.

Four components means that [tex]n = 4[/tex]

Probability of 0.2 of failling means that 1 - 0.2 = 0.8 probability of not failling, so [tex]p = 0.8[/tex]

a) Find the probability that exactly two of the four components last longer than 1000 hours.

This is [tex]P(X = 2)[/tex]. So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 2) = C_{4,2}.(0.8)^{2}.(0.2)^{2} = 0.1536[/tex]

0.1536 = 15.36% probability that exactly two of the four components last longer than 1000 hours.

b) Find the probability that the subsystem operates longer than 1000 hours.

It will operate if at least two compoents last longer than 1000 hours. So

[tex]P(X \geq 2) = P(X = 2) + P(X = 3) + P(X = 4)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 2) = C_{4,2}.(0.8)^{2}.(0.2)^{2} = 0.1536[/tex]

[tex]P(X = 3) = C_{4,3}.(0.8)^{3}.(0.2)^{1} = 0.4096[/tex]

[tex]P(X = 4) = C_{4,4}.(0.8)^{4}.(0.2)^{0} = 0.4096[/tex]

[tex]P(X \geq 2) = P(X = 2) + P(X = 3) + P(X = 4) = 0.1536 + 0.4096 + 0.4096 = 0.9728[/tex]

0.9728 = 97.28% probability that the subsystem operates longer than 1000 hours.

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