I-

please. help.
I have a test soon and I don’t know anything please.

I-please. Help.I Have A Test Soon And I Dont Know Anything Please.

Answers

Answer 1

Answer:

The answer is √5+√3+10+2√15

Answer 2

Answer: [tex]\sqrt{5} + \sqrt{3} + 10 + 2\sqrt{15}[/tex]

Step-by-step explanation:

[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} }[/tex]

You need to multiply by the conjugate

To find the conjugate, first remember:

(a+b)(a-b) = a^2 - b^2 (if a and b are sqrts, this will eliminate the square roots, rationalizing the denominator)

You have √5 - √3 as the denominator

You should multiply by √5 + √3

(This will eliminate the sqrts)

Remember to multiply both the numerator and denominator

[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } = \frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } * \frac{\sqrt{5}+\sqrt{3} }{\sqrt{5}+\sqrt{3}}[/tex]

Now simplify

[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } * \frac{\sqrt{5}+\sqrt{3} }{\sqrt{5}+\sqrt{3}} = \frac{(2+4\sqrt{5})(\sqrt{5}+\sqrt{3})}{(\sqrt{5}-\sqrt{3})(\sqrt{5}+\sqrt{3})} = \frac{2\sqrt{5}+2\sqrt{3}+20+4\sqrt{15}}{5-3} = \sqrt{5} + \sqrt{3} + 10 + 2\sqrt{15}[/tex]


Related Questions

help! asap! :) please I need help can u do this?

Answers

The answer is N-2 is the right answer

Joe walked 12m East and stopped for lunch. After eating he continued walking for 12m East. What is his displacement?

Answers

Answer:

24meters

Step-by-step explanation:

Given data

Joe walked 12m East

We are told that Joe continued to walk for another 12m east

Therefore, Joes displacement is

=12+12

=24m

His displacement is 24meters

What's -2.505 as a fraction

Answers

Answer:

501/200

It told me I need more characters so here’s some random letters hehehajajjajaja

A triangle is show below, what is the value of X?

Answers

Answer:

x=149

Step-by-step explanation:

pythagoras theorem dictates that a squared +b squared= c squared

in this case, c=x

51*51+140*140=x*x

2601+19600=x*x

22201=x*x

x=149

HEELP! NEED WORK!

A stadium with 75 rows has 10 seats the 1st row, 15 in the 2nd, 20 in the 3rd and so on.
How many seats are in the 75th row? How many seats are in the stadium?

Answers

Answer:

380

Step-by-step explanation:

This is an airthmatic sequence

we can use the following equation to find the nth term

a₁+(n-1)d

where the common difference (d) is 5

and the first term (a₁) is 10

and n is 75

we have

10+(75-1)*5

10+370

380

I need help with inequality question.

Answers

Answer:

the answer is c

Step-by-step explanation:

:))))))))


Sarah's pay for two weeks was
$158.16. If she worked 8 hours the
first week and 4 hours the second,
what was her rate of pay?
A $3.23 per hr B$22.60 per hr
C $13.18 D $31.64 per hr

Answers

The answer to the question is C.

selling price is cost price is 64 profit is 16 what is the profit percentage

Answers

Answer:

this is your Answer

hope it helps

plz mark as branliest

PLZ HELP WILL GIVE BRAINLY!!!!

Answers

It’s 2/1 because you go up 2 (rise) and go over one (run)
I think the best answer is 2/1 because u need to rise and then go over one and this is easy so bye111

Find the missing angle measures?

Answers

Answer:

x)45

y)45

z)135

Step-by-step explanation:

Roberta earns $262.50 per week. She works 30 hours per week. How much does she earn per hour

Answers

Answer:

292.5

Step-by-step explanation:

Roberta earns $262.50 per week so i added 262.50 and 30 and got 292.5

What is the square root of ten rounded to the nearest 100th

Answers

Answer:

3.162

Step-by-step explanation:

√10 = 3.162

Answer:

Step-by-step explanation:

I hope I can use a calculator and not use logs or a type of long division!

√10 = 3.16227

The hundredth place is the 6. The next place is a 2 which does not have any effect on the 6.

Answer: 3.16

A student carries out a survey of favourite colours. Can she find the average colour? Give a reason for your answer.

Answers

Answer:

Yes

Step-by-step explanation:

She can because you can find the average of something by at least having 2 numbers and since its a survey there's more then 2 people so yes is the right answer.

the sitting and the time frame of the story the ravine

Answers

Answer

umm, wheres the question?

Step-by-step explanation:

Calculate the length of the side LN given the following data for 37°.

Sin 37° = 0.602
Cos 37° = 0.790
Tan 37° = 0.754

pls help ASAP

Answers

Answer:

It is given that,

Sin 37° = 0.602

Cos 37° = 0.790

Tan 37° = 0.754

To find:

The length of side LN.

Solution:

In a right angle triangle,

[tex]\sin\theta =\dfrac{Perpendicular}{Base}[/tex]

Using this in triangle LMN, we get

[tex]\sin (37^\circ) =\dfrac{LM}{LN}[/tex]

[tex]0.602=\dfrac{6}{LN}[/tex]

[tex]0.602LN=6[/tex]

Divide both sides by 0.602.

[tex]LN=\dfrac{6}{0.602}[/tex]

[tex]LN=9.966777[/tex]

[tex]LN\approx 9.97[/tex]

Therefore, the correct option is C.

GIVING BRAINLIEST Find the surface area of the net below

Answers

Answer:

119

Step-by-step explanation:

1/2x5x7x4+7x7

can I have the brainliest ?

Answer:

119 m

Step-by-step explanation:

First find the square 7x7 = 49m

Now the triangle [tex]\frac{5 * 7}{2}[/tex] = 17 .5

17.5 * 4 = 70m

70m + 49m = 119m

jamar has a 8 foot long piece of wood that he wants to cut to build a tree house if each is going to be 5/6 foot long, what is the greatest number of pieces he will be able to use​

Answers

Answer:

The greatest amount of pieces he would be able to use would be 9 because 8 divided by 5/6= 9 and 3/5.the 3/5 piece is too short.

Step-by-step explanation:

need help in math anyone please help

Answers

Answer:

what's the question?

Step-by-step explanation:

how can i help you ? what subject do you need help in ?

The symbol^ => "means to the power of". The value of 3^2 + 2^3
10 points

Answers

Answer:

17

Step-by-step explanation:

3^2 = 3*3 = 9

2^3 = 2*2*2 = 8

3^2 + 2^3 = 9 + 8 = 17

whats the ninth term of 25 20 15 10 5

Answers

Given:

The sequence is 25, 20, 15, 10, 5.

To find:

The ninth term of the given sequence.

Solution:

We have,

25, 20, 15, 10, 5

It is an AP because the difference between two consecutive terms are same.

Here,

First term (a) = 25

Common difference (d) = 20-25

                                       = -5

The nth terms of an AP is

[tex]a_n=a+(n-1)d[/tex]

Where, a is the first term and d is the common difference.

Putting a=25, n=9 and d=-5 to get the 9th term.

[tex]a_9=25+(9-1)(-5)[/tex]

[tex]a_9=25+(8)(-5)[/tex]

[tex]a_9=25-40[/tex]

[tex]a_9=-15[/tex]

Therefore, the ninth term of the given sequence is -15.

Jackson spends 214 hours painting 212 pictures. He spends the same amount of time painting each picture. How much time, in hours, does Jackson spend painting each picture?

Answers

1 hour and 7 1/2 minutes per picture
2 1/4 = 60 * 2 = 120 + 15 = 135/2= 67.5 = 1 hour and 7 1/2 minutes

You have a function that takes in an X value and produces a Y value. The x value equals 7 times the y value, plus 18 more. What's the x value when the y value equals 6?

Answers

X=33 is the answer to this question!!!

3 x 8/4 ?????????????//////

Answers

Answer:

6

Step-by-step explanation:

8/4 = 2 so 3*2=6

HELP ME WITH THIS PLS!!!!!!

Answers

Answer:

Step-by-step explanation:

[tex]x^{2} x^{2} \sqrt{x} \neq \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right][/tex]

what does p equal?pls help me.

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the inequalities.

9p -9 <4p -2

===> 9p - 4p < -2 +9

===> 5p < 7

===> p < 7/5

hence the answer is P < 7/5

Riley used a drawing to divide . He made groups of 12 with 1 left over. Hoy many groups did he make?

Answers

Step-by-step explanation:

Here important information is missing. That is total number of divide.

However, it is given that riley made groups of 12 with 1left over from total number of divide. So, total number of divides on the drawing must be a multiple of 12 +1. It can be any number like 12n+1, where n is an integer. Then we ca find total number of group.  

Name an (input, output) pair on the graph that could be removed from the data set to have the graph represent a function! :)

Answers

I think it would be 12 sorry if I’m wrong

a polynomial contains number of terms​

Answers

Correct question is;

A polynomial contains _____ number of terms

Answer:

(n + 1)

Where n is the degree of the polynomial

Step-by-step explanation:

Now, for a polynomial that has degree of n = 1, the number of terms it will have is 2.

Similarly, a polynomial that has degree of n = 2, the number of terms it will have is 3.

This means from the above, we can deduce that the number of terms in a polynomial with degree "n" is n + 1.

We can therefore conclude that a polynomial can have any finite number of terms as n + 1

DESPERATE WILL GIVE BRAINLIST AND THANKS
Use the data to create a scatter plot.



Weight vs. Stretch Distance
PointMove
UndoRedoReset
Stretch distance (cm)Weight (N)
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
0


Stretch distance (cm)

Weight (Newtons)

2.0

1

3.5

2

4.0

2

4.5

3

5.5

5

6.0

6

7.5

8

9.0

9


(plz show the graph picture with the answer)

Answers

Answer: What you must do for this case is to graph each of the ordered pairs that you have in the table to obtain the dispersion chart. Note that in your table you have eight ordered pairs, therefore, your scatter chart must have eight pairs.

Step-by-step explanation:

subtract 12a² + 15ab - 20b² from 15a² + 10ab + 8b²

help.​

Answers

Answer:

3a^2 + 28b^2 - 5ab

Step-by-step explanation:

here's your solution

=> to subtract (12x^2 + 15ab - 29b^2) from

( 15a^2 + 10ab + 8b^2)

=> (15a^2 + 10ab + 8b^2) - (12a^2 + 15ab - 20b^2)

=> 15a^2 + 10ab + 8b^2 - 12a^2 - 15ab + 20b^2

=> 15a^2 - 12a^2 + 8b^2 + 20b^2 + 10ab - 15ab

=> 3a^2 + 28b^2 - 5ab

hope it helps

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