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
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]

Answer:

(C) 7+2√10


Related Questions

What is the equation of a line that is parallel to the line y = 5x – 1 and passes through the point (4, –3)? A. y = 5x + 19 B. y = –5x + 17 C. y = 5x – 23 D. y = –15x – 115

Answers

Answer:

y = 5x - 23

Step-by-step explanation:

Slope: 5

Point (4, - 3)

y-intercept: -3 - (5)(4)

= -3 -20 = -23

y = 5x - 23

PLEASE HELP ME!! I DON'T KNOW WHAT TO DO????

Answers

Answer:

Step-by-step explanation:

x-10=4

bring the 10 over  and add it to the 4 and that equals 14 so

x=14  hope this helps have a great day

It’s a -10 so you have to put a 10 in both sides, cancel the -10 | x = 14

x^2 - 6x + 1 = 0 by completing the square​

Answers

Answer:

See below.

Step-by-step explanation:

x^2 - 6x + 1 = 0

x^2 - 6x = -1

We halve the coefficient of  x (which is -6/2 = -3) and square it, then add this to both sides:-

x^2 - 6x + (-3)^2 = -1 + (-3)^2

x^2 - 6x + 9 = -1 + 9

(x - 3)^2 = 8

x - 3 = ±√8

x =  3 ± √8

= 0.17, 5.83   to 2 decimal places.

Answer:

[tex]x = - 2 \sqrt{2} + 3 \\ or \\ x = 2 \sqrt{2 } + 3[/tex]

Kristie needs 2.5 yards of fabric for bridesmaid dresses.
If she purchased 28.5 yards of fabric, how many complete
dresses would she make?

Answers

So it’s

The yards of fabric / how much fabric is needed to make a dress
So
28.5/2.5
=11.4
So 11 complete dresses

Please helppp help pls

Answers

Answer:

true is the answer

Step-by-step explanation:

hope it helps.

Find the equation of the line passing through the points (-3,8) and (3,-4). Write the
equation in slope-intercept form.

Answers

Answer:

y = -2x + 2

Step-by-step explanation:

(-4-8)/(3-(-3)) = -12/6 = -2

-4 = -2(3) + b

-4 = -6 + b

b = 2

help plz i need help help help plz

Answers

Answer:

The answer is 3x3x3x3

Step-by-step explanation:

Reason: The 4 on top is an exponent. That exponent shows how many 3's you need to put. You need to put 4 3's, so 3x3x3x3

Gía trị của biểu thức A = ( 2x - 5)x(2x +5) - 4 x (x+2)x(x-2) + (10x + 7)

Answers

Answer:

language

Step-by-step explanation:

Help help help please

Answers

Answer:

hey there,

<5=130°

because of transversal line

For brainily please help

Answers

i think z is 54 bc all the triangles angles should add up to 180 so you subtract 72 from 180 and since the lengths of the triangle are the same for the two sides the angles should be the same too so divide whatever you got from 180-72 which is 108 and divide it by two which is 54 hope it helped z=54

​Find the interest on the loan if you borrowed \$ 5000$5000 at 5 \%5% interest for 11 year

Answers

Answer:

1,511$

Step-by-step explanation:

Write an equation for the line parallel to the given line that contains C.
C(-2,6); y=7/9x+2
HELP MEEEEE

Answers

Answer:

[tex]if \: l_{1} \parallel \: l_{2} \Rightarrow \:m_{1} = m_{2} = \frac{7}{9} \\ m = \frac{y-y_{1} }{x - x_{1}} \\ \frac{7}{9} = \frac{y - 6}{x - ( - 2)} \\ y - 6 = \frac{7}{9}(x + 2) \\ y = \frac{7}{9}x + \frac{7}{9}(2) + 6 \\ y = \frac{7}{9}x +( \frac{14}{9} + 6) \\ y = \frac{7}{9}x +\frac{68}{9} \\ \\ method \: 2 \\ \\ y = mx + c \\ 6 = \frac{7}{9}( - 2) + c \\ c = \frac{14}{9} + 6 = \frac{68}{9} \\ y = \frac{7}{9}x +\frac{68}{9}[/tex]

#10 Compare the
numbers below using <, >
or =
-67 _-62

Answers

Answer: the answer is -67<-62

Step-by-step explanation:

Answer:

-67<-62

Step-by-step explanation:

simplfy the expression [tex]\sqrt110x^{17} y^{12}[/tex]

Answers

I'm going to assume the square root goes over everything.  

To simplify this, you need to find perfect squares under the radical that are factors of the entire [tex]110x^{17}y^{12}[/tex].

[tex]\sqrt{110x^{17}y^{12}} = \sqrt{x^{16}y^{12}\cdot 110x^{1}}[/tex]

Now that stuff in the front will interact nicely with the square root, but the stuff in the back doesn't, so it just stays under the radical.

[tex]\sqrt{x^{16}y^{12}\cdot 110x^{1}} = \sqrt{x^{16}y^{12}}\cdot \sqrt{110x^{1}} =x^8y^6\cdot \sqrt{110x}[/tex]

And that end piece is the simplified answer.

Answer:

no

Step-by-step explanation:

sorry bru but i dont understand [tex]\sqrt110x^{17} y^{12}[/tex]

I need help with this equation

Answers

i think it would be 1

Use the​ slope-intercept form to graph the equation y=5/9x+3

Answers

Your graph should look like this :) !

adele started her homework at 9:10 she finished at 9:45

Answers

the question is kinda incomplete

The pressure on a diver in the water varies directly as the depth. If the pressure is 3.6 Ib/in^2 when the depth is 8ft, what is the pressure when the depth is 30ft.

I give Brainliest! Please show your work

Answers

Answer:

13.5 lb/in^2

Step-by-step explanation:

8ft = 3.6 lb

30ft= ?

8ft÷30ft = 3.75

this means 8ft goes into 30ft 3.75 times

3.6lb× 3.75=13.5lb/in^2

you times the pressure of 8ft by 3.75 to find how much pressure there is at 30ft

A hot-air balloon descended 0.8 meters per second for 10 seconds. It
then climbed at 0.4 meters per second for 5 seconds.
What was the average rate of change in altitude per second?

Answers

Answer:

Step-by-step explanation:

we will use 0,8 in 10 seconds as thats the easiest.

for 10 to become 1 we move the decimel once to the right, 10/10

same will happen to 0.8,

10/10=1

0.8/10=0.08

The hot air-ballon climbs 0,08 meters per second

Mary has a dance class every 2nd day and painting class every 3rd day. On which of the day will she have both the classes?

Answers

9514 1404 393

Answer:

  every 6th day

Step-by-step explanation:

Mary will have a painting class on the same day as every 3rd dance class. That's the same day as every 2nd painting class. Mary has the two classes together on every 6th day.

  [tex]\texttt{- 1 2 3 4 5 6 1 2 3 4 5 6}\\\texttt{d - d - d - d - d - d - d}\\\texttt{p - - p - - p - - p - - p}[/tex]

Please help me 1. Find the missing angle.

29

105

2. What is the measure of Angle 1?

55

78

3. What is the measure of Angle 2?

55

Answers

Answer:

m<2=97

Step-by-step explanation:

Find the measure of the angle and give the reason for knowing it. 1. m∠1 = 83 reason_Corresponding Angles. 2. m∠2 = 97 reason Supplementary.

Simplify
8r^0

A. 8
B. 1​

Answers

Answer:

A). 8 is correct answer

Step-by-step explanation:

8 x 1 = 8

(Hope this helps can I pls have brainlist (crown )☺️

Decide if the following statement is true or false. A simple random sample of twelve 2+ bedroom houses in Rockingham County has a mean monthly lease of $695 with a standard deviation of $135. The true rental cost will be from $560 to $830

Answers

Answer:

Step-by-step explanation:

783

The given statement is "False" because the statement's range is based on the mean and standard deviation of a simple random sample of houses, not the whole population of Rockingham County's houses..

What is a simple random sample?

A simple random sample is a subset of a population chosen in a way that gives each member of the population an equal chance of being selected. The mean and standard deviation of a simple random sample provides information about the population from which the sample was drawn, but they do not provide a range in which the true value of a population parameter is guaranteed to fall.

In this case, the statement provides a range for the true rental cost of 2+ bedroom houses in Rockingham County, but there is no guarantee that the true rental cost will fall within this range. The range provided in the statement is based on the mean and standard deviation of a simple random sample of houses, not the entire population of houses in Rockingham County.

Hence, the given statement is False.

Learn more about the standard deviation here:

brainly.com/question/14747159

#SPJ2

how do you find the coefficient on a scatterplot?

Answers

Answer:

The correlation coefficient is determined by dividing the covariance by the product of the two variables' standard deviations. Standard deviation is a measure of the dispersion of data from its average. Covariance is a measure of how two variables change together.

Which step should be performed first when simplifying 18−3+11×2+5?


-3+11

2+5

18-3

11x2

Answers

Answer:

11 x 2

Step-by-step explanation:

By BODMAS rule,

B - Brackets

O - Orders

D - Division

M - Multiplication

A - Addition

S - Substraction

Consider DMAS alone.

Here, there is no division.

So,

Multiplication ( x ) should be the first step.

-3x lessthan or equal to 3x +3 less than 2x+ 10

Answers

Answer:

x ≥ 0Hope this helped :)

How many zeros are there for the square of 200? 2,3,4,6

Answers

Answer:

C. 4

Step-by-step explanation:

200² = (2*100)² = 4*10000, as we see there are 4 zeros

Correct choice is C

Answer:

4

Step-by-step explanation:

200²200×20040000

Hence, there are 4 zeros for the square of 200.

What is the ninth term of the arithmetic sequence defined by the rule below?
A(n) = 14 + 2(n – 1). The ninth term is what?

Please answer will give Brainliest if correct

Answers

Answer:

The ninth term is 30

Step-by-step explanation:

Please help me solve this problem ASAP

Answers

Answer:

x=1.6

Step-by-step explanation:

x = 1.6

explanation: causeee lol

An art teacher recorded whether the students in three of her classes prefer water color or oil painting. The art teacher plans to create a two-way table to analyze her results. Which variables can the art teacher use as the row and column headings of the table? painting preference and total number of students painting preference and number of students in class 1 class number and painting preference class number and number who prefer oil.

Answers

Answer:

C.) class number and painting preference








Step-by-step explanation:

Have a great rest of your day
#TheWizzer

Answer:

the answer is C I believe  

Step-by-step explanation:

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