please answer this!!quick

Answer:

{-π/2, π/2}

Step-by-step explanation:

Rewrite this as:

7sin^2 x - 14sin x + 7 = 0.  Reduce this result by dividing all terms by 7:

sin^2 x - 2sin x + 1

Temporarily replace "sin x" with y:

y^2 - 2y + 1 = 0

Solve this through factoring:  (y - 1)^2 = 0, or y - 1 = ± 0, or y = ±1

Recalling that y = sin x, we write

sin x = ±1, whose solutions are sin x = 1 and sin x = -1

The solution of sin x = 1 is π/2 and that of sin x = -1 is -π/2

and so the solution set is {-π/2, π/2}

Answer:

1st side=44 cm, 2nd side= 55cm

Step-by-step explanation:

let a = '4x' , b = '5x'

h= 12cm

Area of trapezium=1/2*(a+b)h

area=594=1/2*9x*12

594*2/12=9x

594/6=9x

99=9x

99/9=11=x

therefore, 4x=4*11=44cm

             &5x=5*11=55cm

Answer: C=2

I know it seems difficult but it’s not as bad as it looks.

Step-by-step explanation:

First you add 7 to both sides of the equation as shown:

3c-7+7=-c+1+7

Then you simplify giving you the equation 3c=-c+8

Then you add C to both sides of the equation: 3c+c=-c+8+c

Then you combine like terms giving you the equation of 4c=8

After that you divide both numbers by 4 giving you the fraction of 8/4 otherwise know as 2. Hope this helps, best of luck.

Answer:

x = 40 , y = 70

Step-by-step explanation:

y = 70°

x° = 180° - 2 × 70° = 40°

Answer:

They are the same answer in absolute value form and they are different because they are opposite numbers

Step-by-step explanation:

Answer:

39°

Step-by-step explanation:

Angle ABD and angle CBD are complementary angles which means they complete each other to 90°

so if CBD is 51 then ABD is 90 - 51 = 39°

Answer:

Taylor will earn $7.50 more than Victoria

Step-by-step explanation:

9(5)= 45

10.5(5)= 52.5

52.5-45= 7.5

Answer: The Speed of The Ball (I think....)

Answer:

The answer would be B

Step-by-step explanation:

When you are tryinf to find the slope you have to subtract from both sides and devide the number.

Answer:

Slope of equation is: m= -5/9

Option A is correct.

Step-by-step explanation:

We are given the equation: 125x+225y=6000

We need to find the slope of the equation. The slope can be found if we arrange the equation in slope-intercept form i.e y=mx+b where m is slope.

So, rewriting given equation in slope intercept form:

[tex]125x+225y=6000\\225y=-125x+6000\\\frac{225y}{225} =\frac{-125}{225}x+ \frac{6000}{225}\\y= \frac{-5}{9}x+ \frac{80}{3}[/tex]

Now comparing the equation with slope-intercept form i.e y=mx+b we get the value of slope i.e m= -5/9

So, Slope of equation is: m= -5/9

Option A is correct.

Answer:

b

Step-by-step explanation:

add 29 27 24 18 and 29 then divide by 5

Answer:

(in a statistical test) the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Step-by-step explanation:

Answer:

C. 5x - 54 = 3x + 16

Step-by-step explanation:

These angles are alternate interior angles and their measurement is same

5x - 54 = 3x + 16

5x - 3x = 16 + 54

2x = 70 divide both sides by 2

x = 35

Answer:

25%

Step-by-step explanation:

Answer = difference/Originalx100

Answer=15/60=0.25x100=25%

Answer:

The best and the most correct answer among the choices provided by the question is the third choice. The table that best represents direct variation is:

Input x 3 4 5

Output y 9 16 25

Answer:

ITS C

the 3 one

Step-by-step explanation:

Answer:

b.12.25

Step-by-step explanation:

You just simply divide 220.50 by 18 and you will end up with the rate per hour.

Answer:

The amount financed is $5,200

Step-by-step explanation:

Amount of finance is the price after making down payment being financed by a bank or institution or any individual to purchase an asset on some agreed terms.

Price of the car = $6,400

Down payment = $1,200

Amount financed = Purchase price - Down payment

PLacing values in the formula

Amount financed = $6,400 - $1,200

Amount financed = $5,200

Amount of finance is $5,200, Whereas total payments in 36 months are $6,344.28 against finance of $5,400 and the interest payment is $944.28 ( $6,344.28 - $5,400 ).

Answer:

just need points sry

Step-by-step explanation:

Answer:

y = [tex]\frac{4}{3} x[/tex]

Step-by-step explanation:

The equation is y = [tex]\frac{4}{3} x[/tex].   To draw the line, take two points (0, 0) and (3, 4).  You can draw a straight line connecting those points.

Answer:

Step-by-step explanation:

this woukd have to make y = [tex]\frac{4}{3}[/tex]x in order for the rest to become proportional with the x axis. so im pretty sure this is correct

im not 100% on this one, because im going through something else right now, but im 87% sure that this is correct. hope this helped :)

Answer:

A.) Yes. The input and output are both possible.

Step-by-step explanation:

In this problem, a dentist sees patients each day to clean their teeth. So we represent this function as g(x) where:

x: Represents the number of people who saw the dentist.

g(x): Represents the number of teeth cleaned.

So we are given a point that is solution to our function, but what does this point represent? This tells us that the dentist saw 20 patients and cleaned 20 teeth. For example, a volunteer dentist can see more people than a common dentist and it is likely that that volunteer person sees fewer teeth. However, it's very difficult that that dentist finds 20 people with an only tooth each. So this situation is possible, but not realistic in the real world.

Answer:

Yes. The input and output are both possible.

In this problem, a dentist sees patients each day to clean their teeth. So we represent this function as g(x) where:

x: Represents the number of people who saw the dentist.

g(x): Represents the number of teeth cleaned.

So we are given a point that is solution to our function, which is  but what does this point represent? This tells us that the dentist saw 20 patients and cleaned 20 teeth, that is, he cleaned an only teeth per patient. So this will make sense under the conditions that make it possible, for example, a volunteer dentist can see more people than a common dentist and it is likely that that volunteer person sees fewer teeth. However, it's very difficult that that dentist finds 20 people with an only tooth each. So this situation is possible, but not realistic in the real world.

Step-by-step explanation:

Answer:

the answer is 66.6%

Step-by-step explanation:

the 6 keeps going but imma just make it 66.6

Answer:

-5

Step-by-step explanation:

Nothing cancels out so all you have to do is add the two numbers but keep the sum negative to get -5

Example:(?)

Jeff had -1 points on brainly. He lost 4 more points. How many points does he have now?

Answer. -5

Step-by-step explanation:

-1+-4. so here we multiple the signs(+×-)= -. that's why I came up with the answer -5 and when multipling signs please be kin enough to multiple. so here the multiplication of the signs (+×+)=+, (-×-)=+ please

Answer: ADE

Step-by-step explanation:

Answer:The particles in a solid are tightly packed and locked in place. Although we cannot see it or feel it, the particles are moving = vibrating in place.

Answer:

the movement of particles within a solid is normally slower, do to the particles being tighter together than the other classifications.

Answer:

Step-by-step explanation:

Cost of one fish = 6.45 ÷ 5 = 1.29

Cost of 8 fish= 1.29 x 8 = 10.32

Answer:

$10.32 is the cost of 8 golddfish

Step-by-step explanation:

First, we'll find the cost for one goldfish and then we can multiply by 8 to find the cost of 8 goldfish.

so we divide by 5, then times by 8

6.45/5 = 1.29

1.29 * 8 = 10.32

Answer: 2/3

Step-by-step explanation: since there are 3 colors black red and white black and red make 2 while white is just one so your probablity of choosing white is 2/3.

Answer:

x>-2

Step-by-step explanation: