Cooper was out at a restaurant for dinner when the bill came. His dinner came to $18. After adding in a tip, before tax, he paid $20.34. Find the percent tip.

Answer:

The exact value of

cos90 is 0

sin90 is 1

tan90 is indeterminate.

Answer:

[tex] \cos(90) = 0 \\ \sin(90) = 1 \\ \tan(0) = 0[/tex]

Answer:

The scatter plot would closely resemble a straight line with a positive slope, but causation  cannot be determined.

Step-by-step explanation:

Recall that causation and correlation are 2 different things. Say Taller people usually had a name that started with the letter “A” It's a correlation, but a name does not determine the height, so it's not causation. (I took the test and got it right too.)

The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning would be imply about the football team winning at home.

It is an index that measures correlation between two variables, assuming values between -1 and 1.

If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.

If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.

It also is the slope of the line of best fit.

The number of wins for a high school football team is measured for the season. When the team plays at home, it is generally believed that they will win.

Comparing the location of the game and the number of wins, a correlation coefficient of 0.891 is calculated.

The scatter plot would closely resemble a straight line with a negative slope. The data has a strong, negative correlation, and a causal relationship exists between the team playing at home and winning.

Learn more about straight line here:

https://brainly.com/question/21872285

#SPJ4          

Answer:

3/12

Step-by-step explanation:

jayfeather friend me

Answer:

8⁻¹

Step-by-step explanation:

1/x = x⁻¹

Answer:

it depends

Step-by-step explanation:

I could be very committed,

im 15 in july my name is mercedes. and im bi, I skate and taken

Answer:

part a  2

part b - (0,-1)

Step-by-step explanation:

Answer:

20.8 I'm pretty sure....

Answer:

20.8

Step-by-step explanation:

130/100=1.3

1.3*16=20.8

Answer:

Step-by-step explanation:

the discount is $3

the reason for this is

10% = 20÷10=2

5%= 2÷2=1

2+1=3

so the discount is $3

Answer:

-1.9, 0.32, 2/3, sqrt5, 2pi

Step-by-step explanation:

Given:

Point (7,12) is rotated 1260° counterclockwise about the origin.

To find:

The  x-coordinate of the point after this rotation.

Solution:

If a point is rotated 360 degrees then its coordinates remains unchanged.

If a point is rotated 180 counterclockwise about the origin degrees, then

[tex](x,y)\to (-x,-y)[/tex]

We know that,

[tex]1260^\circ=1080^\circ+180^\circ[/tex]

[tex]1260^\circ=3\times 360^\circ+180^\circ[/tex]

After [tex]3\times 360^\circ[/tex] rotation the coordinates of points remains same, i.e., (7,12). So, after that (7,12) is rotated 180° counterclockwise about the origin.

[tex](7,12)\to (-7,-12)[/tex]

The point (7,12) becomes (-7,-12) after rotation of  1260° counterclockwise about the origin.

Therefore, the x-coordinate of the required point is -7.

Answer:

Two places to the right.

Step-by-step explanation:

Since theres  two zeros in 100, move the decimal two places to the right, making it 400.3.

Answer:

The answer is 3 dollars.

Step-by-step explanation:

4 + 3 + 3 = 10$

Answer:

the answer is C

Step-by-step explanation:

hope this helps

Answer:

what you want to know...

Step-by-step explanation:

please write complete question.....

So,I can understand it

Answer:

Step-by-step explanation:

3(x+2)=36

3x+6=36

3x=30

x=10

Answer:

3 (10+2)=36

Step-by-step explanation:

Hope this helps

Answer:

A = 2000.

Step-by-step explanation:

A = kB^2 where k is a constant to be found, so substituting:

500 = k * 10^2

100k = 500

k = 5.

So we have

A =  5B^2

When B = 20:

A = 5 * 20^2

= 5 * 400

= 2000.

[tex]\color{plum}\tt \: \bold{(A) 12x - 4 = 10x + 10 ; x = 7}[/tex]

Since these angles are corresponding angles and lie on two parallel lines, their value will be equal.

Which means :

[tex] = \tt12x - 4 = 10x + 10[/tex]

[tex] = \tt12x - 4 - 10x = 10[/tex]

[tex] = \tt12x - 10x = 10 + 4[/tex]

[tex] = \tt2x = 14[/tex]

[tex] =\tt x = \frac{14}{2} [/tex]

[tex] =\color{plum}\tt x = 7[/tex]

Thus, the value of x = 7.

Let's place 7 in the place of x and see if their value matches :

[tex] = \tt12 \times 7 - 4[/tex]

[tex] = \tt84 - 4[/tex]

[tex] = \tt80[/tex]

Thus, ∠12x - 4 = 80°

[tex] =\tt 7 \times 10 + 7[/tex]

[tex] = \tt70 + 10[/tex]

[tex] = \tt80[/tex]

Thus, ∠10x + 10 = 80°

Since the value of these two angles are equal, we can conclude that we have found out the correct measure of each angle.

Therefore, the correct option is - (A) 12x - 4 = 10x + 10; x = 7

Answer:x=2

Step-by-step explanation:

Answer:

1/3 yard

thats the answer im pretty sure

but you cant see the first two question options

Answer:

m<x=60°

Step-by-step explanation:

180-40= 140

140-80=60

m<x=60°

Hope this helps! :)

Answer:

552.5

Step-by-step explanation:

2/5x + 68 = 289

2/5 x = 289 - 68

2/5x       = 221

x = 221  * 5/2 = 552.5

I hope im right!!!

Newton's law of gravitation says that the force due to gravitation between two objects with masses m₁ and m₁ is given by the formula

[tex]F=G\dfrac{m_1m_2}{r^2}[/tex]

Where r is the distance between the objects, and G is the gravitational constant (about 6.674×10⁻¹¹ m³⋅kg⁻¹⋅s⁻²)

Answer:

Step-by-step explanation:

The main difference between communicable disease and non-communicable disease is that Communicable diseases are those diseases that can spread from person to person, whereas, non-communicable diseases are those which do not spread and are non-contagious. Communicable Disease v s.

Communicable diseases are those that are contagious but generally short-lived. Noncommunicable diseases are not contagious and can’t spread to other people; these are chronic illnesses. While communicable diseases are caused by pathogens such as bacteria and viruses, noncommunicable diseases are generally due to genetics and lifestyle.

Answer:

I believe your answer is     1. Communicable diseases can spread from person to person. Noncommunicable diseases cannot spread.

Step-by-step explanation:

Communicable diseases are the diseases which passes from one individual to another individual. They are generally caused by some bacteria, viruses or any other pathogens. For example, malaria, AIDS etc. Non-communicable diseases are the diseases which does not spread from one person to another person.

Answer: since the 7 has to be less than a number, the equation would be n-7

Answer:

690 - 595

Step-by-step explanation:

As we know that representation of a 3 digit number = xyz

where x [tex]\neq[/tex] 0

z is at ones place

y is at tens place

x is at hundred place

As, we have to subtract two 3 digits numbers with different hundred digits

So, Let

The hundred digit of first number be 6

The hundred digit of second number be 5

∴

Assume first number with hundred digit 6

Let the number be - 690

Now,

Assume second number with hundred digit 5

Let the number be - 595

Now,

We will check that the difference between both the numbers are less than 100 or not

Now,

690 - 595 = 95 < 100

It satisfies the condition

So, the equation becomes 690 - 595

Answer:

-79

Step-by-step explanation:

5ac-2b

5(-3)(5) - 2(2)

-75-4

-79

substitute values and then solve