find the length of side X in simplest radical form with a rational denominator (giving brainliest and thanks to all!)

Find The Length Of Side X In Simplest Radical Form With A Rational Denominator (giving Brainliest And

Answers

Answer 1

Answer:

x= √10/2

Step-by-step explanation:

if you use trig. functions:

sin 45° = opposite side /hypothenuse = x/√5

sin 45° = √2/ 2

√2/2 = x/√5 multiply both sides by √5

x= (√2*√5)/2 = √10/2

if you use that is a 45-45-90 special triangle

the sides are x, and hypothenuse must be x√2 in this type of triangles so in our case:

x√2 = √5 divide both sides by √2

x= √5/√2 multiply by √2/√2 which =1 and help us get rid of the radical from the denominator

x= (√5*√2)/ (√2*√2) = √10/2


Related Questions

Can someone please help me with this question for hw

Answers

Yes the cost is a function because with each hour it costs $5 more than before, keeping a pattern

Hope this helps ya :D

solve h(x) = 5 - 9x Find h(8)

Answers

h(x) = 5 - 9x

h(8) = 5 - 9×8 ( putting value x = 8)

h(8) = 5 - 72

h(8) = -67

Answer is -67.

Answer:

h(8) = -67

Step-by-step explanation:

To solve this problem, we take x in h(x) and input it for x within the problem.

In this case, h(8), so 8 is replacing x in 5-9x.

h(8) = 5 - 9(8)

h(8) = 5 - 72

h(8) = -67

Hope this helped!!

Which one is an example of an equation?

Answers

Answer: 5x + 5 = 30

Step-by-step explanation: All equations have a equal sign at the end. Hope this helped!

I think all are an equation because 5x is 5 times x and the others are equations.

PLS HELP MEEEE I WILL GJVE BRAIN THINGY!!!!!

Answers

Answer:

last one

Step-by-step explanation:

Answer:

D. -5-3

Step-by-step explanation:

Daniel has 6 erasers. he give one to p.j. and. he gives one to ken. he keeps. the rest. what friction of his erasers did he give away.​

Answers

Answer:1/3

Step-by-step explanation:

He gave away 2/6 of the erasers. You can simplify that by doing 2 divided by 2 6 divided by 2 which makes it 1/3. Daniel gave away 1/3 of the erasers.

Answer:

1/3

Step-by-step explanation:

he gave one to p.j=1/6

he gave one to Ken=1/6

1/6 +1/6=2/6=1/3

When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car. Find a 99% confidence interval (CI) and margin of error (ME) for the true proportion of all college students who own a car.

Answers

Answer:

The margin of error will be "0.65". A further explanation is provided below.

Step-by-step explanation:

The given values are:

n = 343

x = 110

At 99% confidence level,

[tex]\alpha = 1-99[/tex]%

  [tex]=1-0.99[/tex]

  [tex]=0.01[/tex]

then,

[tex]\frac{\alpha}{2} =\frac{0.01}{2}[/tex]

  [tex]=0.005[/tex]

or,

[tex]Z_{\frac{\alpha}{2} }=Z_{0.005}[/tex]

     [tex]=2.576[/tex]

Now,

The point estimate will be:

⇒  [tex]\hat{P}=\frac{x}{n}[/tex]

⇒      [tex]=\frac{110}{343}[/tex]

⇒      [tex]=0.321[/tex]

or,

⇒  [tex]1-\hat{P}=1-0.321[/tex]

⇒            [tex]=0.679[/tex]

The margin of error will be:

⇒  [tex]E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )[/tex]

On substituting the above values, we get

⇒      [tex]=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }[/tex]

⇒      [tex]=2.576\times \sqrt{\frac{0.217959}{343} }[/tex]

⇒      [tex]=0.065[/tex]

hence,

⇒  [tex]\hat{P}-E<p<\hat{P}+E[/tex]

⇒  [tex]0.321-0.065<p<0.321+0.065[/tex]

⇒  [tex]0.256,0.386[/tex]

Consecutive angles in a parallelogram are always ?

Answers

Answer:

Consecutive angles of a parallelogram are congruent.

Please help me with this

Answers

Answer:

12m

Step-by-step explanation:

its similar triangles the opposite is always 2times the side.

probability of rolling a factor of 45

Answers

Answer:

Step-by-step explanation:

POOP THEN PEEEEEE

Apply the distributive property to create an equivalent expression. (6m -7) ⋅ 4

Answers

Answer:

24m-28

Step-by-step explanation:

I hope this helps!

answer:

the simplified version of this is: 24m-28

Last month, he sold 50 chickens and 30 ducks for $550. This month, he sold 44 chickens and 36 ducks for $532

Answers

Answer:

★ Given :

Cost of 50 chickens and 30 ducks = $ 550

Cost of 44 chickens and 36 ducks = $ 532

★ To find :

Cost of chicken and duck

★ Solution :

Assume :

Cost of chicken = x

Cost of duck = y

According to question :

50x + 30y = 550 ......(1)

44x + 36y = 532......(2)

1) - (2)

(50x + 30y) - (44x + 36y) = 550 - 532

50x + 30y - 44x - 36y = 18

6x - 6y = 18

6(x - y) = 18

x - y = 18/6

→ x - y = 3 ....(3)

In equation 1 ,

50 x + 30y = 550

taking 10 common

10(5x + 3y) = 550

5x + 3y = 550/10

5x + 3y = 55

by taking 3 common

3(5/3 x + y) = 55

by dividing 3 on both sides

5/3x + y = 55/3 .....(4)

(3) + (4)

x - y + 5/3 x + y = 3 + 55/3

x + 5/3 x = 64/3

8/3 x = 64/3

by multiplying 3 on both sides

8x = 64

x = 64/8

→ x = 8

→ Cost of chicken = $ 8 ..

by putting value of x in equation 3

x - y = 3

8 - y = 3

y = 8 - 3

→ y = 5

→ Cost of ducks = $5..

Step-by-step explanation:

mrk me brainliest plz

Jonas received a gift card of $35.00 to use for an online App Market to buy applications for his tablet. All Apps cost $1.75. Which table represents the relationship between x, the number of Apps Jonas can buy, and y, the balance remaining on his gift card.​

Answers

Answer:

A)

Step-by-step explanation:

The starting balance is $35

after one game purchase, the balance is 35-1.75=33.25

after two game purchases, the balance is 35-(1.75*2)=31.50

Write the equation in point-slope form of the line that passes through the given point and has the given slope: (-2, -1); m=-3

Answers

Answer:

y+1=-3(x+2)

Step-by-step explanation:

point-slope form is the formula y-y1=m(x-x1), where (x1, y1) is a point and m is the slope

we are given a point (-2, -1) and a slope of -3

all we really need to do is substitute the given into the formula

remember: since the formula gives subtraction, we're going to be subtracting, even though we have negative numbers

substitute -2 as x, -1 as y and -3 as m

y--1=-3(x--2)

we can simplify this equation:

y+1=-3(x+2)

Hope this helps!

Find the area of the shape shown below. PLZ ANSWER

Answers

Answer:

Hello! answer: 7

Heres an image to explain I hope this helps you!

Answer:

i belive th answer is 58

Step-by-step explanation:

so you have 3 right angles so thais 90 x 90x90

Which point on the number line could represent 85%?

Answers

Answer:

8/5 and -8/5

Step-by-step explanation:

-8/13 + -4/13 pls solve and tell ​

Answers

Answer:

-12/13

Step-by-step explanation:

Given,

-8/13+(-4/13)

=-8/13-4/13

=-12/13

-8/13 - 4/13 when the common denominator is the same. Therefore: -8/13 -4/13. =. -12/13

I know the answer but I don’t know how to solve it

Answers

Answer: b

Step-by-step explanation:

I can't see the question

What is the angel of c??

Answers

Correct answer: 50°
Subtract (65+65) from 180° and you’ll get the angle of C, which is 50°

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer:

2

Step-by-step explanation:

First off, the slope of f(x) is -4.  It is in the form y=mx+b and m=-4.

For g(x), the slope can be calculated from any two points given.  I willuse (1,9) and (3,21) because I like positive numbers.  So, slope is rise over run and it is calculated from (y1-y0)/(x1-x0)  This gives me (21-9)/(3-1) which is equal to 6.  So adding the two slopes: 6+ (-4)=2

Help me please i really need this question done and i dont understand it.

Answers

Answer: The answer is 64 inches



...................

What are all expressions that are equivalent to 6(2–4n)

Answers

Answer:

I found 1 and its 18(6-12n)

Is this by chance a multiple choice question?

Step-by-step explanation:

Ravi and Hasan bought 13⁄4 of pies , Ravi ate 1/3 and Hasan ate 2/3 of it
. How much pie is left?

Answers

Answer:

The final answer is 0

Step-by-step explanation:

1/3 + 2/3 = 1 which means Ravi and Hasan ate the whole thing

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

NEED HELP ASAP!!!
complete the table to show an equivalent ratio where the number of ears at the start of 100.

Answers

Answer:

60

Step-by-step explanation:

If  Isabelle sells 150 out of 250 ears of corn. Then the percentage of the ears of corn she sold will be 60%.

What is the percentage?

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

Every morning she starts with 250 ears of corn.

On Saturday, Isabelle sells 150 out of 250 ears of corn.

Then the percentage of the ears of corn she sold will be

[tex]\rm P = \dfrac{150}{250} \times 100\\\\P = 15 \times 4\\\\P = 60 \%[/tex]

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ2

Given the quadratic function f(x) = 2x + 5x-12, what is the value of f(-2)?

Answers

Answer:

-26

Step-by-step explanation:

first substitute -2 for x : 2(-2)+5(-2)-12

-4+-10-12

-14-12

-26

-26 is your answer

pls mark me brainliest if this helps !

Help how much does Sophie weigh

Answers

Answer:

45

Step-by-step explanation:

You take 181-119=62 then 119-74=45 then the last one was 74, to check you add them all together and you should get 181, since sofia was the smallest she is 45lbs    

Use the diagram below to answer questions 1-3. 60 C b If a=5, then the value of b is 2.9 8.7 C 17.3 D 5.8 2. If C= 10. then the exact value of b is B 5 с A 5.8 D 17.3 3. If b=7, then the value of a is 3.5 С 14 12.1 A B 4.04​

Answers

Answer:

1. A

2. B

3. D

Sort of explanation:

This is a 30° 60° 90° triangle, so the rules below apply:

x is the short leg of the triangle, located across from the 30° angle. (In this problem, the short leg is labled b)

The hypotenuse leg is across from the right angle, and is always 2x (In this problem, the hypotenuse leg is labled c)

The long leg of the triangle is located across the 60° angle and is always x√3. (in this problem, the long leg is labeled a)

brainliest goes to whoever answers the question correctly also if you want more points answer my other questions

Answers

Answer:

(16, 11) or ( 16, 10 )

Step-by-step explanation:

Find (−7x+6)−(−10x+8)

Answers

Answer:

3x-2

Step-by-step explanation:

(-7x+6)-(-10x+8)

open the parenthesis

-7x+6+10x-8

combine like terms

3x-2

All dimensions of a cylinder are multiplied by 1.5. Which statement is true?

A. The total surface area is multiplied by 3.375.
The volume is multiplied by 2.25.

B. The total surface area is multiplied by 2.25.
The volume is multiplied by 3.375.

C. The total surface area is multiplied by 3.
The volume is multiplied by 4.5.

D. The total surface area is multiplied by 4.5.
The volume is multiplied by 3.

Answers

Answer:

The true statement is;

B. The total surface area is multiplied by 2.25

The volume is multiplied by 3.375

Step-by-step explanation:

By scale drawing proportionality, we have;

The amount by which all the dimensions of the cylinder are multiplied to create an image of the cylinder = 1.5

∴ The scale factor between the original cylinder and the image of the cylinder, S.F. = 1.5

By rule, we have;

The area factor of the surface area = S.F.² = 1.5² = 2.25

Therefore;

The total surface area of the original cylinder is multiplied by 2.25 to get the total surface area of the image of the cylinder

By rule, we have;

The volume factor = S.F.³ = 1.5³ = 3.375

Therefore;

The volume of the original cylinder is multiplied by 3.375 to find the volume of the image of the cylinder.

Answer:

B

Step-by-step explanation:

A gymnastics center charges a $60 registration fee and $15 per class. Olivia registers to take
a class and pays a total of $210. Which equation can be used to determine how many
classes Olivia signed up for?

Answers

Answer:

60x + 15x = 210

Step-by-step explanation:

Thenks and mark me brainliest :))

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