factorise [tex]x^{2}[/tex] - 9

Answers

Answer 1

Answer:

a1= 1   q= −sinx  , dla |q| <1   , ta suma jest zbieżna  

 a1   1  

S=  

=  

 1 −q   1+sinx  

w mianowniku podobnie:   a1=1  ,  q= sinx  , dla  | sinx| <1

 1  

S=  

 1 −sinx  

i mamy równanie:

 

1  

1+sinx  

 

 

= tg2x

 

1  

1− sinx  

 

Step-by-step explanation:


Related Questions

Dave says:
The only quadrilateral with two lines of symmetry is a rectangle.
Is Dave correct?
Explain your answer

Answers

Answer:

a rectangle is having 4 lines of symmetry but a trapezium is having 2 lines of symmetry

The quadrilateral with two lines of symmetry is a rhombus and not a rectangle. Therefore, the statement given by the Dave is not correct.

Quadrilateral- Quadrilateral is a type of polygon with closed shaped which has four sides, four angles and four vertices. The sum of this interior angle are always equal to 360 degrees.

Rectangle- A rectangle is a type of polygon and closed two dimensional figure with four sides, four angles and four vertices. In the rectangle the length of the opposite side are equal. Rectangle has two lengths and two widths.

Statement of the Dave- The only quadrilateral with two lines of symmetry is a rectangle-

A quadrilateral with two lines of symmetry means the line about which one part of figure is mirrored to the other image. such quadrilateral with two lines of symmetry will become the rhombus shape. The shape is similar to the kite shape. Thus the above statement is not correct.

By the above discussion we conclude that the quadrilateral with two lines of symmetry is a rhombus and not a rectangle. Therefore, the statement given by the Dave is not correct.

For more about the quadrilateral follow the link below-

https://brainly.com/question/6321910

The school hiking club has completed 4 out of 5 hikes so far this year. They have hiked 4.6 miles, 3.7 miles, 5.1 miles, and 2.9 miles. If their goal is to hike 20 total miles, how many miles does the last hike need to be?

1.7 miles
4.7 miles
2.7 miles
3.7 miles

Answers

Answer:

there last hike i think needs to be 7.2 miles long

Step-by-step explanation:

NEED ASAP !!
Fill in the rest of the graph ? 2 .
How can u tell when Greg was going fastest ?

Answers

Answer:

When greg has the lead

Step-by-step explanation:

WILL MARK BRAINIEST
Which expression is equivalent to
36/25sqaure root?
A.6/25
B.5/6
C.6/5
D.36/25

Answers

Answer:

it is C

Step-by-step explanation:

trust me

I need to know the slope ASAP

Answers

Answer:

-3/1

Step-by-step explanation:

brainliest pls

Sarah had 16 stickers. Al gave her 25 more. How many stickers does Sarah have now?

Answers

Answer:

Sarah had 16 stickers. Al gave her 25 more. How many stickers does Sarah have now? 41

Step-by-step explanation:

Answer: 41

Step-by-step explanation: The key word in this sentence is more. She already has 16 and she is getting another 25. So that means you have to add 16 and 25 to find out how much she has now. The answer would be 41.

Tickets for a concert cost $25 each. You have $180 to spend. Write
an expression for the money that you have left after buying
t tickets. Evaluate the expression to find the amount of money left
after buying 6 tickets.

Answers

Answer:

180 - 25(T)= 30

T=6

180 - 25(6)= 30

hey guys its addison ray

Answers

Answer:

what do you want answered

Step-by-step explanation:

ive heard of you but i dont know who you are. arent you on tic tac

Answer:

This isnt addison rae at all. Addison wouldnt be on this app. This is basically identity theft and if the REAL addison rae find out that you are pretending to be her she can sue you for identity theft :) have fun!

Please Help! Anyone know how to solve Rational Equations?

Answers

Answer:

The answer is D. x = 0 , 5

x equal to 0 and 5.

35 POINTS!!! Show your work and write an expression using the following criteria:
1. A dividend is greater than 1,000
2. The quotient is 37 with a reminder of 4

Answers

Answer:  3704 / 100=37R4

Step-by-step explanation:

3704 / 100=37R4

Answer:

listen

Step-by-step explanation:

Just breathe! I know Im late but please take notes and not ask everyone on here to do stuff for you! Thanks

Una pizza grande de queso cuesta $18. Cada ingrediente extra cuesta $1.50

Answers

Answer:

3

Step-by-step explanation:

Toda la futura variación de pizzas se ha elaborado con cuatro ingredientes distintos: la base, la salsa, el queso y la cobertura. Pero, dado que no hay cobertura, la respuesta sería 3.

-LavenderVye

Write an equation for the line that has slope -2 and passes through the point (3, - 4). SHOW YOUR WORK

Answers

Answer:

2x+y-2=0

Step-by-step explanation:

Solution

Here,

Passing point P(x,y)= (3,-4)

Slope(m)= -2

Now Equation of the line

(y - y1)=m(x - x1)

(y+4) =-2(x-3)

y+4 = -2x+6

2x + y =2

2x +y -2 =0 which is the required equation of the line

Select the correct answer.
Which equation represents the vertical line passing through (1,-9)?
A.
x = -9
B.
X = 1
y = -9
D.y = 1

Answers

Answer:

I think A because we can't see the thing

Answer:

x=1

Step-by-step explanation:

The vertex angle of an isosceles triangle is 10 less than three times the base angles. Find each angle of the triangle.

Answers

3b-10

(3x-10) +2x=180
5x -10=180
5x=190
x=38.

3(38)-10= 104

vertex angle is 104 degrees and each base angle is 38 degrees

From the picture attached,

ΔABC is an isosceles triangle.

       ∠B ≅ ∠C

Vertex angle ∠A is 10 less than 3 times the base angles.

       m(∠A) = 3[m(∠B)] - 10

By applying angle sum theorem in ΔABC,

m(∠A) + m(∠B) + m(∠C) = 180°

m(∠A) + m(∠B) + m(∠B) = 180° [From equation (1)]

m(∠A) + 2m(∠B) = 180°

[3m(∠b) - 10] + 2m(∠B) = 180°

5[m(∠B)] = 180° + 10°

m∠B = 38°

       Therefore, m∠B = m∠C = 38°

Substitute the value of angle B in equation (2),

m(∠A) = 3[m(∠B)] - 10

m(∠A) = 3(38) - 10

          = 104°

        Therefore, measure of angle A will be 104°.

Learn more,

https://brainly.com/question/4973154

!!!PLEASE HELPPPP!!!! Select all options that are greater than 17. (the answer's are power)
2 to the power of 5
4 to the power of 2
2 to the power of 2 + 3 to the power of 2
3 to the power of 3 - 3 to the power of 2.

Answers

Answer:

it's 2 to the power of 5, 2 to the power of 2 + 3 to the power of 2 and the last one is 3 to the power of 3 - 3 to the power of 2

If more airplanes and cars are used (both of which burn fossil fuels), carbon levels will increase.

Group of answer choices

True

False

Answers

Answer:

True

Step-by-step explanation:

Cars and planes use fossil fuels such as, gas, petroleum. These are unrenewable resources.

Answer:

true

Step-by-step explanation:

they both emit carbon so if they are both used more often then carbon emissions will increase.

I need help with this anyone?

Answers

Answer:

c is the correct answer

Which expression is equivalent?

Answers

Answer:

this one i can not help you on sorry

Step-by-step explanation:

In the first 1/3 hour of a snow storm, 1/12 of an inch or snow fell. If the snow continues to fall at the same rate, how many inches of snow will fall in 2 hours?

Answers

Answer: 1/2 inch

Step-by-step explanation:

1/3 of an hour 1/12 inches fell

in one hour 3/12 or 1/4 inches fell

in 2 hours 2/4 or 1/2 inches fell

A glass is 1/3 full. Then 75cm3 of orange juice is poured in.
The glass is now 3/4 full. What is the total volume of the glass?

Answers

37.1 is 1/4 of the glass that is full so 111.3cm3 is filled I think

Samantha, Brooklyn, and Mary went to Bonnaroo music festival where they each attended various


concerts.


• Samantha only went to rock concerts where the sound level was normally distributed between 113


and 117 decibels.


• Brooklyn went to 4 concerts with Samantha and also went to 5 folk concerts where the sound level


was between 95 and 97 decibels.


• Mary got sick, so she only attended 2 shows - one rock concert and one folk concert.

Answers

Answer:

a, b, c

Step-by-step explanation:

Among the three girls, Samantha attended the concerts with the greatest mean sound level.

Among the three girls, Samantha attended the concerts with the greatest median sound level.

If Mary had attended an additional rock concert, the median sound level of concerts she attended would have been greater than it is now.

stream fineline lol

A zoo administrator must decrease the staff size by 1/4 because of budget cuts. If the zoo employs 456 people, how many people must be dismissed?

Answers

Answer:

114 people

Step-by-step explanation:

456*.25=114

Describe how you would simplify the given
expression.
Pan-talons
20xy
5x 'Y
X=0.y=0

Answers

Answer:

y^15/64x^24

Step-by-step explanation:

pretende-se guardar um cano de 42cm de comprimento em uma caixa de ferramentas retangular, cuja as medidas são 36cm de comprimento por 27cm de largura. Verifique se tal feito será possível de ser realizado, demonstrando numericamente seu raciocínio

Answers

Answer:

Step-by-step explanation:

Não porque a caixa seria muito menor que o cano.

At the store, 10 ounces of candy cost $3.20. What is the price of 6 ounce of candy?

Answers

divide $3.20 to get the cost per ounce, and multiply it by 6 to get the price for 6 ounces.

6 ounces = $1.92

hope this helps!! :)

What is the base of this Scalene triangle?

Answers

Answer: like the measurement or ?

Step-by-step explanation:

Find the value of n for which the vectors a⃗ =(3,2)a→=(3,2) and b⃗ =(9,n)b→=(9,n) are collinear.​

Answers

Answer:

For n=6, the given vectors will be collinear.

Step-by-step explanation:

Collinear vectors are the vectors which lie on the same line or parallel lines. In order to find if two vectors are collinear, their ratio is found. If the ratio is same for all unit vectors then the vectors are collinear.

Given

[tex]a = (a_1, a_2) = (3,2)\\b = (b_1, b_2) = (9,n)[/tex]

The ratio of first unit vectors is:

[tex]\frac{a_1}{b_1} = \frac{3}{9} = \frac{1}{3}[/tex]

In order for the vectors to be collinear the other ratio should also be 1/3

[tex]\frac{a_2}{b_2} = \frac{1}{3}[/tex]

Writing it mathematically

[tex]\frac{2}{n} = \frac{1}{3}\\2*3 = n\\n = 6[/tex]

Hence,

For n=6, the given vectors will be collinear.

x2 + 10x + 9 = 0 factor form

Answers

Answer:

11/10

Step-by-step explanation:

Find the unit price rounded to the nearest cent: $12.35 for 11 lb.

Answers

Answer:

$1.12 per lb

Step-by-step explanation:

Someone help me solve this please, I'd appreciate it if you can walk me through the steps. If not, just answering it is okay :)

Answers

Answer:

c. -8

Step-by-step explanation:

Given:

[tex] \frac{4b \div c}{1 - a} [/tex]

a = 5, b = 8, and c = 1

To evaluate, plug in the values into the expression given.

Thus:

[tex] \frac{4(8) \div 1}{1 - 5} [/tex]

[tex] \frac{32 \div 1}{1 - 5} [/tex]

[tex] \frac{32}{-4} [/tex]

[tex] \frac{8}{-1} = - 8 [/tex]

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