please help!! will give brainliest to best answer
simplify sqrt((1-sinx)(1+sinx))

Answer:

f(-7) = 18

Step-by-step explanation:

Add AbS in calculator

or

2(-7) = -14 (AbS) -> 14

-4 -> (AbS) = 4

14+4 = 18

Well, find the change in y over change in x. You get three.over one. So your slope Is positive 3.

Answer:

uhm the x would be the -7 since she's going to be taking that off and it says she will be paying 224 so its y=-7x+224 (harder to explain than i thought, im sorry if this don't help:(..)

Answer:

y = -7x + 224

Step-by-step explanation:

First off, the m-value.

The m-value is the constant rate at which something changes. For example, if I had 43 bananas and I subtracted 7 each week, the constant rate at which it changed would be -7. Another way to think about it is the amount of something you subtract per period. According to my last example, you subtract 7 each period, which would be a week. This is also called the slope, which is the rate of change, but I'm assuming you won't analyze these graphs until later. Using the situation presented in the problem, the constant rate at which the gym subtracts from Lucy's account is -$7 per period, which is each time Lucy goes to the gym.

Secondly, the b-value, also known as the y-intercept. This is your starting point. Using my last example, I am starting at 43 bananas. Using the example from the problem, Lucy pays $224 dollars in advance to the gym. So, her starting point is $224.

(you don't need to read this if you don't want to, but it might be helpful!) The reason we use this equation is to be able to find the value of x or y at a given point. X is usually time, which is an independent variable, and y is dependent on the situation. In this one, it is how much money Lucy has spent at the gym. So, for example, if you wanted to find out how many trips to the gym it would take for Lucy to run out of her initial amount, $224, you would plug in 0 for y and solve for x.

0 = -7x + 224      *add 7x to the other side, in order to reverse the negative*

7x = 224        *divide by 7 on both sides*

x = 32 trips to the gym

Another way you could use it is if you wanted to find out how much money Lucy had left after she went to the gym 4 times. You would plug in 4 for x.

y = -7*(4) + 224    

y = -28 + 224         *multiply -7 by 4*

y = 224- 28             *adding a negative is like subtracting a positive*

y = $196                  

Hope this helps!

A triangle has a total degrees of 180, so you add 55 and 53 to get 108

then you subtract that from 180 to get 72. 72 is your answer

Answer:

72 degrees

Step-by-step explanation:

First of all, you should know that each triangle equals to 180 degrees. So just add 55 + 53 which equals 108. Then you just subtract 108 from 180 (180-108) which equals to 72 degrees.

Therefore, the third missing angle measure is 72 degrees.

Hope this helps! :)

Answer:

[tex]\frac{x-2}{x-1}[/tex] or [tex]1 - \frac{1}{1-x}[/tex]

Step-by-step explanation:

[tex]\frac{x^{2} -x-2}{x^{2} -2x+1}[/tex] * [tex]\frac{x-1}{x+1}[/tex] =

[tex]\frac{(x-2)(x+1)}{(x-1)^{2} }[/tex]* [tex]\frac{x-1}{x+1}[/tex] =

[tex]\frac{x-2}{x-1} * 1[/tex] = [tex]\frac{x-2}{x-1}[/tex]

If you want to simplify even more:

[tex]1 - \frac{1}{1-x}[/tex]

Answer:

x = 66

Step-by-step explanation:

x + x - 20 + x + 40 + 2x + 10 = 360

x =66

Answer:

y = -x - 1   &  y = -3x - 1

Step-by-step explanation:

Answer: 1,1 for he first one and 1/4 on the second

Step-by-step explanation: rise/ run

Answer:

2 cookies each

Step-by-step explanation:

79/9 ÷ 4 = 79/9 x 1/4 = 79/36 = 2.2

Answer:

It is actually C, just took it and D was wrong

Step-by-step explanation:

Answer:

I believe that the error is that sqrt(-2) should be equal to sqrt(2) * i

Step-by-step explanation:

The rest of the steps all use proper algebraic rules, but the square root of a*b = sqrt(a)*sqrt(b)

Answer:

You shouldn't blame your mom. You are more than capable of getting 80's that is the bare minimum. Your mom does not want you to fail, try harder and get better grades. 70's are not the best

Answer:

It is C.

Step-by-step explanation:

the division sign indicates it is evidently going to be B or C. Then it's just simple knowledge.

The statement describing the expression as the quotient of x+5 and x² - 2 option (C) is correct.

It is defined as the combination of constants and variables with mathematical operators.

We have an expression:

[tex]= \rm \dfrac{x+5}{x^2-2}[/tex]

We can write the above expression as follows:

= (x + 5) ÷ (x² - 2)

The above expression is not in the product.

The quotient of x+5 and x² - 2

Thus, the statement describing the expression as the quotient of x+5 and x² - 2 option (C) is correct.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ5

Answer:

B

Step-by-step explanation:

Answer:

2 out of 12

Step-by-step explanation:

can also depend what type of dice it is

Answer:

8%

Step-by-step explanation:

Assuming it is 1-6, the probability of getting it once would be 16%. So, just divide 16 in half. 8%.  

Answer:

Its A

Step-by-step explanation:

Because if you add 3+5 that is 8 so 8/8

Answer: 20 cubic feet

Step-by-step explanation:

I did the math

Hope this helps!!

Answer:

The smallest number is 7

Step-by-step explanation:

Using simultaneous equation;

x+y = 18.....(1)

4x-y = 17.....(2)

from equation (1)..

x+y = 18

y = 18-x...(3)

substitute y into equation (2)

4x-y = 17

4x-(18-x) = 17

4x-18+x = 17

4x+x = 17+18

5x = 35

x = 35÷5

x = 7

substitute x into equation (3)

y = 18-x

y = 18-7

y = 11

Therefore; x=7

y=11

11+7=18

(4×7)-11=17

the smallest number is 7

Answer:

sorry need the points

Step-by-step explanation

Answer:

-38

Step-by-step explanation:

-38 - 7 = -45

-45 divided by 9 = -5

Answer: y = -38

The value of y is -38

Step-by-step explanation:

First, you want to multiply all terms by the same value to eliminate fraction denominators:

-5 = (y-7) / (9)

9(-5) = 9 * (y - 7) / (9)

Then you will cancel multiplied terms that are in the denominator:

9(-5) = 9 * (y - 7) / (9)

9(-5) = y - 7

Then multiply the numbers:

9(-5) = y - 7

-45 = y - 7

Solve and simplify:

y = -38

Solution:

y = -38

Hope this helps =)

Answer:

The center of this circle is (5, -4) and the radius is 1.

Step-by-step explanation:

First regroup these terms according to x and y :

x^2 - 10x + y^2 + 8y = -40

Next, complete the square for x^2 - 10x:  x^2 - 10x + 5^2 - 5^2.

and the same for y^2 + 8y:  y^2 + 8y + 16 - 16

Substituting these results into x^2 - 10x + y^2 + 8y = -40, we get:

x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40.

Next, rewrite x^2 - 10x + 25 and y^2 + 8y + 16 as squares of binomials:

Then x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40 becomes:

(x - 5)^2 + (y + 4)^2 - 25 - 16 = -40, or:

(x - 5)^2 + (y + 4)^2 = 1

This equation has the form (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.  Matching like terms, we get h = 5, k = -4 and r = 1.

The center of this circle is (5, -4) and the radius is 1.

Answer:

Center (5,-4) Radius = 1

Step-by-step explanation:

Put it in the form of the standard circle equation after dividing everything by 2. (-10x/2=-5x) (8y/2=4y) Since the radius wasn't given, it's just going to be a 1.

(x-5)^2+y(-(-4))^2 = 1^2

Hence, center (5, -4) and radius 1.

Answer:

45 individuales y 75 dobles.

Step-by-step explanation:

Para saber esto, debemos plantearlo por medio de un sistema de ecuaciones. En este caso las incógnitas serían el tipo de habitación, es decir, una será la habitación doble, y la otra la individual.

X: habitaciones individuales

Y: habitaciones dobles

Sabiendo eso, sabemos que sumando ambos tipos de habitaciones, dan el total de 120, por tanto, la primera ecuación será:

x + y = 120  (1)

Para la segunda ecuación, sabemos que hay 195 camas en total, que deben distribuirse en los dos tipos de habitaciones, en una habitación doble van 2 camas, mientras que en una individual va 1, por tanto:

x + 2y = 195   (2)

Ahora que tenemos las dos ecuaciones, solo resta resolverlo por alguno de los métodos conocidos de sistema de ecuaciones. En este caso, como las ecuaciones son sencillas podemos usar el método de reducción.

En la siguiente foto, está el procedimiento.

Suerte

Answer:

C. The triangles are not similar.

Step-by-step explanation:

Divide the short sides and long sides to see if they are similar:

24/16 = 1.5

36/28 = 1.29

The triangles are not similar.

Answer:

me also confuse lol

Step-by-step explanation:

Answer:

x=90°

Step-by-step explanation:

They're all 90° angles

Answer:

The answer is C

BC=EF

Step-by-step explanation:

A statement which is necessary to prove that the two (2) triangles are congruent by the SAS criterion is: C. BC = EF.

A triangle can be defined as a two-dimensional (2D) geometric shape that has three (3) sides, three (3) angles and three (3) vertices.

Based on the side, angle, side (SAS) criterion, a statement which is necessary to prove that the two (2) triangles are congruent is that side BC must be equal to side EF because angle ABC is equal to angle DFE.

Read more on congruency here: brainly.com/question/11844452

#SPJ2

Answer:

Monsoon.

Step-by-step explanation:

Answer:

upper level

Step-by-step explanation:

I think it is because it it sounds like it match

Answer:

4.77

Step-by-step explanation:

because Circumference can be found with this equation

C = 2piR

we need to plug in 15 for Circumference and solve for its radius or R.

15 = 2piR

15/2pi = R

but we need diameter which is 2R so we just need to multiply the answer by 2.

15/2pi × 2 = Diameter

15/pi = D

approximately = 4.77

Answer:

10 for number 1

2. 106

Step-by-step explanation:

each time you go your moving by one