Given the figure below, find EF if CA = (6n) and EF = (n + 8)

Answer:

tanx=d/f, sinx=d/e, cosx=f/e

Step-by-step explanation:

Find the opposite, Adjacent and hypotenuse of the right triangle.

Opposite= d , Adjacent= f, Hypotenuse= e

Tanx = opposite/adjacent

Sinx= opposite/hypotenuse

Cosx= adcajent/hypotenuse

Answer:

$36 is 45% of $80. The percent difference is 55%.

Step-by-step explanation:

Answer:

Thickens (Height) = 0.068 cm

Step-by-step explanation:

Given:

Diameter of disc = 14 cm

Radius of disc = 14 / 2 = 7 cm

Surface area = 3 cm²

Find:

Thickens (Height)

Computation:

Disc is a cylinder in shape

Surface area = 2πrh

3 = 2(22/7)(h)(7)

3 = 44(h)

Thickens (Height) = 0.068 cm

Answer:

724

Step-by-step explanation:

Answer: 724

Step-by-step explanation: I multiplied and then got this i also did the quiz for this :) have a good day!

Answer:

(0,1)

Step-by-step explanation:

Anh randomly surveyed 36 students to see if there was interest in starting the 7th grade science club he found 4 students said they would be interested if 180 students are in the 7th grade how many can be expected to join?

4/36 = x/180

180/36 = 5

20/180

20 students would be intrested

The table shows the results of drawing 44 cards from a deck of 104 game cards. After each draw, the card is replaced.Based on the results, what is the chance that a draw results in a wild card?

Cards :Wild|Number|Penalty|

Freq: 10 | 32 | 2 |

10/44,  =

5/22

Answer:

A) H0: σ₁²-σ₂²= 0   against the claim  Ha: σ₁²-σ₂²≠0

B) t= 0.3543860

C)  t≥ t∝/2 ( d.f)=2.024394

D)1) There is no evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels.

Step-by-step explanation:

The claim is that there is evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels which is the

alternate hypothesis

The null hypothesis is the reverse of the alternate hypothesis

The null hypothesis is that there is not enough evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels.

Part A) H0: σ₁²-σ₂²= 0   against the claim  Ha: σ₁²-σ₂²≠0

Part B) t= x1`-x2`/ sqrt ( s₁²/n₁ + s₂²/n₂)

  t=  2.214- 2.0115/ sqrt ( 2.951657/20+  3.57855/20)

 t= 0.2025/ sqrt(0.14758285 + 0.1789275)

t= 0.2025/0.5714108

t= 0.3543860

Part C) for 2 tailed test the critical value of t is obtained by

t≥ t∝/2 ( d.f)= ± 2.024394

We look at the table with values 0.025 as ∝/2= 0.05/2= 0.025

in the degrees of freedom 38

The d.f = n1+n2-2= 20+20-2= 40-2= 38

Part D) Since the calculated value of t= 0.3543860 does not fall in the critical region  t≥ t∝/2 ( d.f)= ± 2.024394 we conclude that H0 is true and accept the null hypothesis.

So option 1 is correct

1) There is no evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels.

Answer:

x=0, -28.

Step-by-step explanation:

abs(x+14)=14

x+14=14

x=14-14=0

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

x+14=-14

x=-14-14

x=-28

Answer:

-7(-p+6)

Step-by-step explanation:

Answer:

-7(-p+6)

Step-by-step explanation:

Answer:

[tex]7p-42[/tex]

Why:

To use the distributive property, you multiply all things within the parantheses by the -7 (in this case). To Multiply -p and -7, remember that a negative times a negative equals a positive, so it simply results in 7p. When you multiply -7 and 6, multiply them together and you get -42. You get [tex]7p+-42[/tex], but that's not a fully simplified equation, so get rid of the addition symbol and make the 42 positive. This expression is now fully simplfied into [tex]7p-42[/tex].

P.S. Never ever add a negative in an expression. Lots of teachers like to dock your points for doing it.

Answer:

I think it would be 25 hours

Step-by-step explanation:

Im not exactly sure but if she prepared 25 kg all together and prepares 1 kg every hour, then i think that would be 25 hours.

I hope this helps :)

Please tell me if im wrong

Answer:

x= 17 /9  or x= 25 /9

Step-by-step explanation:

9(3x - 7) ^2= 16

9(3x - 7) ^2-16= 0

as we know that (a-b)^2=a^2-2ab+b^2

9((3x)^2-2(3x)(7)+(7)^2=0

solving this we got the below equation

81x2−378x+425=0

By Factorizing the equation

(9x−17)(9x−25)=0

9x−17=0 or 9x−25=0

x= 17 /9  or x= 25 /9

Step-by-step explanation:

ndnndndndjdjdjdfjfjfgnn

Answer:

They should leave Juliette about a $9.34 tip  because 18% of 51.87 is 9.3366 which rounds up to 9.34

Answer:

18% of $51.87=9.3366tip is a required tip.

Answer:

For this we can first multiply both sides by dx:

[tex]dy = 4x^{1/6}dx[/tex]

Next we can integrate both sides:

[tex]\int dy = \int 4x^{1/6}dx\\[/tex]

We can then solve both integrals to get:

[tex]y = 4(\frac{6}{7}x^{\frac{7}{6}}+C_1) = \frac{24}{7}x^{\frac{7}{6}}+C_2[/tex]

We can just say the constant is C2. So the answer is

[tex]y = \frac{24}{7}x^{\frac{7}{6}}+C_2[/tex]

We can also check this by differentiating both sides. We will ultimately get the equation we with. If I made any mistakes or misread something, please let me know.  

9514 1404 393

Answer:

  D) 6, 10, 12

Step-by-step explanation:

The sum of the two shortest must exceed the longest. This is only the case for the segment lengths in choice D.

  6 + 10 > 12

Answer:

the answer is D. 6 ,10 ,12

formula- tsa of prism- 2*area of trangular base + lateral surface area

to make easy

area of trangular base = 1/2(breathe×height)

lateral surface area =

area of trangluar bases+ perimeter of trangular base

Answer:

Step-by-step explanation:

Exact value is (130 )

Answer:

130

Step-by-step explanation:

Answer:

x<26

Step-by-step explanation:

8(x/4 - 6) < 4

Divide both sides by 8;

8(x/4 - 6)/8 < 4/8

Simplify;

x/4-6<1/2

Add 6 to both sides;

x/4-6+6<1/2+6

Simplify;

x/4-6+6<1/2+6

Simplify

x/4-6+6

=x/4

Simplify;

1/2+6

Convert it into a fraction;

6*2/2+1/2

Since the denominators are equal combine the fractions;

6*2+1/2

6*2+1=13

=13/2

x/4<13/2

Multiply both sides by 4;

4x/4<13*4/2

Simplify 4x/4

4x/4

4/4=1

=x

Simplify 13*4/2

Multiply the numbers:13*4=52

=52/2

Divide the numbers:52/2=26

=26

x<26

HOPE THIS HELPED!!!

Answer:

395.2 cm²

Step-by-step explanation:

2x12.7x6.72=170.688

2x6.72x5.78=77.6832

2x5.78x12.7=146.812

170.688+77.6832+146.812=395.1832

Answer:  A=395.2

Step-by-step explanation:

A=2(wl+hl+hw)

A=2[(12.7x5.78)+(6.72x5.78)+(6.72x12.7)]

A=2(73.406+38.8416+85.344)

A=2(197.5916)

A=395.1832

Rounded to nearest tenth..

A=395.2

Answer:

4√2

Step-by-step explanation:

Using Pythagoras Theorem ,

[tex]\implies h^2 = p^2 + b^2\\\\\implies 9^2 = x^2 + 7^2 \\\\\implies 81 = x^2 + 49 \\\\\implies x^2 = 81 - 49 \\\\\implies x^2 = 32 \\\\\implies \boxed{x = 4\sqrt2} [/tex]

Answer:

Answer:[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex] Pythagoras law:h²=p²+b²

9²=x²+7²

x²=81-49

x=√32 units

Answer:

11+22, and 55+86

Step-by-step explanation:

11+22 = 33 which is odd

55+86 = 141 which is also odd

42+96 = 138 which is EVEN

Even is the opposite

of odd

Answer:

$1,620

Step-by-step explanation:

2% per year:

2% of 1,500 = 30

30 x 4 = 120

1500 + 120 = 1620

Answer:

huh? Can you put it in a pdf

Step-by-step explanation:

Answer:

hi i know this not the answer but hope it help:)))

Step-by-step explanation:

Multiply the probabilities just calculated for each individual spinner together to find the probability of getting any specific combination of outcomes from spinning the arrows on both spinners. In the example, you would multiply 1/4 by 1/3 to obtain 1/12.

answer

x=28

explanation

so what would happen is you pay a fee of 22$ and then 1$ per visit and we are looking to see how many visits it take to get to 50$

what we do it put

22+x=50

x is how many visits it would take to 50$

so what we do is subtract 22 from both sides

x=50-22

x=28

Answer:

  x = 12

Step-by-step explanation:

An inscribed angle has half the measure of the arc it intercepts.

  arc SU +arc UT = 180°

  2(43°) +(9x -14)° = 180°

  9x = 108 . . . . . . . divide by °, subtract 72, simplify

  x = 12 . . . . . divide by 9

Answer: 19.2 ft

Step-by-step explanation:

The distance between you, Player A and Player B are in the form of a right angled triangle so using the Pythagorean Rule, we can find the distance between you and Player A.

c² = a² + b²

c = hypotenuse = Distance between you and player A

a = Length of triangle

b = Height of triangle

c² = 12² + 15²

c² = 144 + 225

c = √369

c = 19.2 ft

Answer:

sale prive would be 15$ but 60$ off

Step-by-step explanation:

Answer:

$60

Step-by-step explanation:

To solve this problem you can multiply 75 by .8, 80%, or 8/10. Multiplying by these numbers is equal 80%

Answer:

[tex] F)\displaystyle \: 100\pi{ x}^{8} {y}^{2} {z}^{ 6} [/tex]

Step-by-step explanation:

we are given r and the formula

we want to find the surface area of the shpare with the given r

to do so

we need our algebra skills

substitute the value of r:

[tex] \displaystyle \: S = 4\pi( {5x}^{4} y {z}^{ 3} {)}^{2} [/tex]

recall law of exponent

[tex] \displaystyle \: ({x}^{m} {)}^{n} \iff \: {x}^{mn} [/tex]

to simplify:

[tex] \displaystyle \: S = 4\pi({ {5}^{2} x}^{4 \times 2} {y}^{1 \times 2} {z}^{ 3 \times 2} )[/tex]

simplify multiplication:

[tex] \displaystyle \: S = 4\pi({ 25x}^{8} {y}^{2} {z}^{ 6} )[/tex]

distribute:

[tex] \displaystyle \: S = 100\pi{ x}^{8} {y}^{2} {z}^{ 6} [/tex]

hence our answer is F

Answer:

Solution given:

x+100=180°{linear pair}

x=180-100

x=80

Answer:

x = 80

Step-by-step explanation:

<ABD and <DBC