The value of (√5 + √2)2
(A) 7+ 2√5 (B) 1+ 5√2 (C) 7+2√10 (D) 7-2√10

Answers

Answer 1

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

Using identity :

[tex] {(a + b)}^{2} = {a}^{2} + b {}^{2} + 2ab[/tex]

[tex]( \sqrt{5 }{+ \sqrt{2{}^{} } } ) {}^{2} [/tex]

[tex]( \sqrt{5} ) {}^{2} + ( \sqrt{2} ) {}^{2} + 2( \sqrt{5} )( \sqrt{2} )[/tex]

[tex]5 + 2 + 2 \sqrt{10} [/tex]

[tex]7 + 2 \sqrt{10} [/tex]

therefore, the correct choice is :

[tex] \mathrm{C.) \: \: 7 + 2 \sqrt{10} }[/tex]
Answer 2
Solution:

[tex]( \sqrt{5} + \sqrt{2} {)}^{2} \\ [/tex]

[tex]by \: \: \: using \: \: \: the \: \: \: formula \: \: (a + b) ^{2} = {a}^{2} + 2ab \: + {b}^{2} \: \: we \: \: \: get \\ ( \sqrt{5} {)}^{2} + 2( \sqrt{5}) \: (\sqrt{{2)}} + ( \sqrt{2) }^{2} \\ = \sqrt{5} \times \sqrt{5} + 2 \sqrt{5 \times 2} + \sqrt{2} \times \sqrt{2} \\ = 5 + 2 \sqrt{10} + 2 \\ = 7 + 2 \sqrt{10} [/tex][/tex]

Answer:

(C) 7+2√10


Related Questions

Please help, me I just need to know how to set it up the 2 equation on both.

Answers

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The Mad Hatter is ordering cups from Teacups

Limited, for his tea party. The Tescups, Limited catalog

prices cups according to the number of cups ardered. For

orders of 20 or fewer cups, the price is $1.40 per cup plus

$12 shipping and handling on the order. For orders of

more than 20 cups, the price is $1.10 per cup plus $15

shipping and handling

a) Create a piece wise function to describe the

price of cups

b) How much will it cost the Mad Hatter if he orders

20 cups?

Answers

a) The piecewise function is:

[tex]C(n) = 12 + 1.40n, n \leq 20[/tex]

[tex]C(n) = 15 + 1.1n, n > 20[/tex]

b) Applying the piecewise function, it is found that it will cost $40.

A piecewise function is a function that has different definitions based on the input.

Item a:

20 or fewer cups, fixed cost of $12 for shipping plus $1.40 per cup. Thus, the first definition of the function for the cost of n cups is:

[tex]C(n) = 12 + 1.40n, n \leq 20[/tex]

For more than 20 cups, price of $1.1 per cup plus a shipping and handling fee of $15. Then:

[tex]C(n) = 15 + 1.1n, n > 20[/tex]

Then, the piece-wise function is:

[tex]C(n) = 12 + 1.40n, n \leq 20[/tex]

[tex]C(n) = 15 + 1.1n, n > 20[/tex]

Item b:

The cost of 20 cups is C(20).It is the first definition, which is valid for [tex]n \leq 20[/tex].

Then:

[tex]C(20) = 12 + 1.4(20) = 12 + 28 = 40[/tex]

It will cost $40.

A similar problem is given at https://brainly.com/question/24815096

These triangles are similar. Find the missing
length.
h=

Answers

Answer:

Step-by-step explanation:

4x+5>x+3+3x
Solve for x

Answers

Answer:

Maybe 16

Step-by-step explanation:

A box of chocolates contains only white and dark chocolates in a 2 : 7 ratio. Fill in the gap in the following sentence: 2 in every chocolates are white.​

Answers

Answer:The given information is 24 total chocolates.  You have a 2 to 1 ratio, so 24 ÷ # of milk chocolate = 2 ÷ 1.  

24⁄x = 2⁄1    solve for x, milk chocolate = 12.

milk chocolate (12) + plain chocolate (24)= 36 Total

Hope this helps!

Why is y=3 a polynomial function?

Answers

Answer: y=3 is a polynomial function? Yes. The equation y=3 represents the function that maps all x values to 3

Step-by-step explanation:

The equation y= 3 represents a horizontal line, which will have exactly one intersection point with any vertical line. So it passes the vertical line test for a function too.

graph{y=3+0.0000001x [-10, 10, -5, 5]}

(-10,7) and (4,6)
Find the midpoint of the segment with the given endpoints.

Answers

Answer:

(-3,6.5)

Step-by-step explanation:

With ___, if you increase the input, the output decreases proportionally.
A. direct variation
B. inverse variation
c. joint variation
D. marginal variation

Answers

Answer:

A. Direct Variation

Step-by-step explanation:

I had the exact same answer on my test and I got this one correct

Answer:

Inverse Variation

Explanation:

While direct variation describes a linear relationship between two variables , inverse variation describes another kind of relationship. For two quantities with inverse variation, as one quantity increases, the other quantity decreases.

It takes Peter 25 minutes to clean his room. If he finishes cleaning his room at 8:00 P.M., what time did he start cleaning?

Answers

Answer:

7:35 P.M.

Step-by-step explanation:

Answer:

7:35 PM

Step-by-step explanation:

8:00-25 minutes

At a​ little-known vacation​ spot, taxi fares are a bargain. A 14​-mile taxi ride takes 18 minutes and costs ​$.12.60 You want to find the cost of a ​41-minutes taxi ride. What unit price do you​ need?

Answers

I think its about 60 dollars

Solve the inequality.

Answers

Answer:

w ≤ 2/5

Step-by-step explanation:

−2w+7≥3w+5

Step 1: Subtract 3w from both sides.

−2w+7−3w≥3w+5−3w

−5w+7≥5

Step 2: Subtract 7 from both sides.

−5w+7−7≥5−7

−5w≥−2

Step 3: Divide both sides by -5.

−5w/−5≥−2/−5

w≤2/5

Answer:

w ≤ 2/5

180=2x+y solve for x

Answers

Answer:

x=90-y/2

Step-by-step explanation:

Answer:

x=90-y/2

Step-by-step explanation:

A pair of skate blades costs
$189.00. A pair of skate boots
costs 4 times that much. How
much are the skates and blades
all together?


Answers

Answer: $945.00

This is because 4 times the amount of $189 is $756, and $189 + $756 = $945.00

Please help;
Find a, R, and T.

Answers

a = 4, R = 147, T = 33

Step-by-step explanation:

find a

a/(a + 7) = (16/3)/(44/3)

a/(a + 7) = 16/44

44a = 16a + 112

44a - 16a = 112

28a = 112

a = 112/28

a = 4

find R

2x + 5 = 3x - 9

5 + 9 = 3x - 2x

14 = x

m ∠R = 180° - (2x + 5)

= 180 - (2(14) + 5)

= 180 - (28 + 5)

= 180 - 33

= 147°

find T

m ∠T = 3x - 9

= 3(14) - 9

= 42 - 9

= 33°

Multiply. Enter your answer in scientific notation.
(1.6 x 10^*5)(6.7 x 10^*18)

Answers

Step-by-step explanation:

(1.6 x 10^*5)(6.7 x 10^*18)

=10.72 × 10²³

=1.072×10²⁴

Hello there!

(1.6x10^5)(6.7x10^18)

1.072x10^24

Hope this helps you! :)

[tex](: GraceRosalia :) *^**^**^**^[/tex]

Bonus: Give the nth term for the sequence below:

Answers

Answer: 256×4=1024

Next item is determined by recognizing how the previous items are

calculated.

1

1×4=4

4×4=16

16×4=64

64×4=256

256×4=?The next item is

256×4=1024

Evaluate the expression
-2(12 – 2(-4))?

Answers

The answer is -40

-2(12-2(-4))
-2(12+8)
-2x20
-2x20 = -40

HELLLLLLLLLLLLLLP MEEEEEEEEEEEE

Answers

C and D because they way the triangle are

Answer:

Step-by-step explanation:

yesssssssssssssssssssssssssssssssssssssv teeeeeeeeeeeeeeeeeee;llllllllllllllllllllllllllllllllllllllll

The question is in the pic! Please help :)

Answers

The answer is D.

If you go to point E and count back 4 units, you will land on point B.

Hope this helps! :)

3 an 3/4x2 an 2/3................

Answers

Answer:

M expression:

3x^2/2

D expression:

3, 3/4 x^2, 2/3

Ayuda porfavor lo mas pronto posible

Answers

Answer:

Based on the graphs shown, what would you conclude about the conditions under which enzymes function in cells?

A

Enzymes are most effective at a particular pH and temperature but can function over a range of pH and temperature.

B

С

Enzymes do not have a specific pH or temperature at which they are most effective but function optimally over a range of pH and temperature.

Enzymes work equally well at the low and high ends of their temperature range but reaction rate drops quickly at the high end of their pH range

Enzymes only function at a specific pH and temperature and cannot function over a range of pH or temperature.

D

find the value of f(5)

Answers

Answer:

The answer is 4.

Step-by-step explanation:

PLEASE MARK AS BRAINLIEST!!!!!

Elena, Lin, and Noah all found the area of Triangle Q to be 14 but they reasoned about it differently, as shown in the diagrams below. Pick one of the three students and explain their way of thinking and why his or her answer is correct. Make sure you identify which student you are explaining.

Answers

Answer:

yes it is

Step-by-step explanation:

one-third of a number is at least 5 units from 31

Answers

Answer:

6

Step-by-step explanation:

5^2+6=31

25+6=31

31=31

proved

One-third of the number is at least 5 units from 31. The number is 78.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that one-third of a number is at least 5 units from 31. The unknown number is x.

( 1 / 3 )x + 5 = 31

x + 15 = 31 x 3

x + 15 = 93

x = 93 - 15

x = 78

Therefore, one-third of the number is at least 5 units from 31. The number is 78.

To know more about an expression follow

https://brainly.com/question/723406

#SPJ2

PLZZZ HELPPPP ILL MARK BRAINLIEST TO FIRST AND CORRECT ANSWER THAT HAS WORK AND A THX TO SECOND AND CORRECT ANSWER.

Answers

Answer:

b

Step-by-step explanation:

I know that it is b becuase everthing esle has a higher number and when it's higher more chance of getting a full number

Can y'all help with this?

Answers

Answer:

Step-by-step explanation:

rate = a

a = -16-(-11)/9-6

a= -5/3

I need help this is due tomorrow !

Answers

Answer:

b i think

Step-by-step explanation:

A
B
C
D
E

All the angles are congruent since they're all 90°, since p and q are parallel and there's a straight line going through the middle.

7994
399,780
10,051
35
35,094,013
write the above in standard form​

Answers

Answer:

7.994×10^3

3.99780×10^5

1.0051×10^4

3.5×10^1

3.5094013×10^7

Step-by-step explanation:

7994:Seven thousand nine hundred ninety four .

399,780 :Three hundred thousand ninety nine , seven hundred eighty.

10,051 :Ten thousand fifty one .

35 :thirty five .

35,094,013 :thirty five million ninety four thousand and thirteen.

Aimee went to a stationary shop. She purchased 2 packs of red pens, 4 packs of black pens, and 3 packs of blue pens.
The cost of each pack of pens was $2.50. Which expression shows the total amount Aimee spent on the pens?
A ($2.50 x 2 x 4x3)
B $2.50 x (2+4+3)
C($2.50 x 2) + 3+4
D (52.50 +2 +4+3)

Answers

Answer:

A.

Step-by-step explanation:

The answer is B.

Each pack costs 2.50, so this means we can add all of our packs brought together, before multiplying. (2+4+3)=7. So our final equation should be 7 x 2.50 ,therefore B is our correct answer.

Hope this helps. & don't forget to drink water !!

present value computations are also referred to as

Answers

Answer:

market price

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

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