Find the cosine of R.

Write your answer in simplified, rationalized form. Do not round.

cos(R) =

Answer:

x = 7deg

Step-by-step explanation:

7x + 10 + 15x + 16 = 180 (angles adjacent to each other in a //polygon are supplementary)

22x = 154

x = 7deg

This is a question on polygons and angles. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

Answer:

The slope is 2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer: 102

Step-by-step explanation:

Answer:

El perímetro y el área de un rectángulo cuyos lados miden 6,3 dm y 48 cm es 222 cm y 3024 cm² respectivamente.

Step-by-step explanation:

Para empezar debes tener en cuenta que las medidas tienen que estar en la misma magnitud; por lo tanto en este caso la unidad de medida elegida a utilizar es centímetros. Por lo que el lado que mide 6,3 dm será expresado en cm. Entonces se puede aplicar la siguiente regla de tres simple: si 1 dm equivale a 10 cm, entonces 6,3 dm a cuántos cm equivale?

[tex]cm=\frac{6,3 dm*10 cm}{1 dm}[/tex]

cm=63

Entonces 6,3 dm= 63 cm

El perímetro es la distancia alrededor de una figura, mientras que el área es las unidades cuadradas dentro de una figura.

El Perímetro de un rectángulo es igual a la suma de todos sus cuatro lados.  Un rectángulo siempre tiene dos pares de longitudes iguales. Entonces en este caso se obtiene:

63 cm + 63 cm + 48 cm + 48 cm= 222 cm

El área de un rectángulo es el producto de la longitud de los lados. Entonces en este caso se obtiene:

63 cm* 48 cm= 3024 cm²

El perímetro y el área de un rectángulo cuyos lados miden 6,3 dm y 48 cm es 222 cm y 3024 cm² respectivamente.

Answer:

I am not sure if I am correct but I think it is ten and eight tenths too not a 100% sure

Answer:

its 10 8/10 :) <3

Step-by-step explanation:

Answer:

[tex](4,3)[/tex]

Step-by-step explanation:

Given

[tex]R = (-2,-3)[/tex]

[tex]M = (1,0)[/tex]

Required

Determine the coordinates of S

Midpoint is calculated as:

[tex]M(x,y) = \frac{1}{2}(x_1 +x_2,y_1+y_2)[/tex]

Where:

[tex](x,y) = (1,0)[/tex]

[tex](x_1,y_1) = (-2,-3)[/tex]

Substitute these values in the above formula:

[tex](1,0) = \frac{1}{2}(-2 + x_2,-3+y_2)[/tex]

Multiply through by 2

[tex]2 * (1,0) = 2 * \frac{1}{2}(-2 + x_2,-3+y_2)[/tex]

[tex](2,0) = (-2 + x_2,-3+y_2)[/tex]

By direct comparison:

[tex]2 = -2 + x_2[/tex] and [tex]0 = -3 + y_2[/tex]

Solving for x2

[tex]2 = -2 + x_2[/tex]

[tex]x_2 = 2 + 2[/tex]

[tex]x_2 = 4[/tex]

Solving for y2

[tex]0 = -3 + y_2[/tex]

[tex]y_2 = 0 + 3[/tex]

[tex]y_2 = 3[/tex]

Hence, the coordinates of S is: [tex](4,3)[/tex]

Answer:

[tex]\sec(x)=\frac{1}{\sqrt{1-m^2}}[/tex]

Step-by-step explanation:

We know that:

[tex]\sin(-x)=-m[/tex]

First, since sine is an odd function, we can move the negative outside:

[tex]=-\sin(x)=-m[/tex]

Divide both sides by -1:

[tex]\sin(x)=m[/tex]

We will now use the Pythagorean Identity:

[tex]\cos^2(x)+\sin^2(x)=1[/tex]

Substitute m for sine:

[tex]\cos^2(x)+m^2=1[/tex]

Solve for cosine:

[tex]\cos^2(x)=1-m^2[/tex]

Take the square root of both sides:

[tex]\cos(x)=\pm\sqrt{1-m^2}[/tex]

Since x is an acute angle, cosine will always be positive. Thus:

[tex]\cos(x)=\sqrt{1-m^2}[/tex]

Take the reciprocal of both sides. Hence:

[tex]\frac{1}{\cos(x)}=\sec(x)=\frac{1}{\sqrt{1-m^2}}[/tex]

Answer:

Where is the table???

Step-by-step explanation:

Show the full question

Answer:

3 hours

Step-by-step explanation:

The equation will be

10b+25t ≤ 130 (b = hours of babysitting, t = hours of tutoring)

Plug in the 4 hours of tutoring

10b+(25 times 4) ≤ 130

= 10b+100 ≤ 130

10 times 3 = 30, which answers the question

Since 100 + 30 = 130

Therefore, the answer to the minimum amount of hours Robert has to tutor

to make a minimum of $130 is . . .

3

Answer:

Step-by-step explanation:

Answer = 15 points

Explain:

Correct answer gives you 10 points

incorrect answers subtract 5 points

She had to correct question which would be 20pts. (10 + 10 = 20)

She got one answer wrong which would subtract 5pts (20 - 5 = 15)

answer = 15pts

Answer:

2=9/2

Step-by-step explanation:

Answer:

You’ll need to purchase at least 12 pizzas to handle your group

Step-by-step explanation:

Answer:

768

Step-by-step explanation:

a=3

r=2

t9=ar^n-1

=3×2^9-1

=3×2^8

=3×256

=768

Answer:

D

Step-by-step explanation:

2.33 I think

The critical value that corresponds to a 91% confidence level is 1.7

'Critical value is a cut-off value that is used to mark the start of a region where the test statistic, obtained in hypothesis testing, is unlikely to fall in. In hypothesis testing, the critical value is compared with the obtained test statistic to determine whether the null hypothesis has to be rejected or not.'

According to the given problem,

Confidence level = 91%

Now, α = ( 100 - 91 ) %

             = 9%

             = 0.09

Area of each tail = [tex]\frac{0.09}{2}[/tex]

                             = 0.045

Area in the middle = 1 - 0.045

                               = 0.955

Now, if we look up this area on the z-table, the critical value will come as 1.6954, which is nearly equal to 1.7.

Hence, we can conclude, the critical value is 1.7.

Learn more about critical value here: https://brainly.com/question/14508634

#SPJ2

Answer:

Option (3)

Step-by-step explanation:

Since, every student is responsible for the caring of 4 animals during every hour,

Number of animals cared for ∝ Number of hours spent at shelter  

a ∝ h

a = kh

Here 'k' = proportionality constant

For h = 1 and a = 4,

k = [tex]\frac{h}{a}=\frac{4}{1}[/tex]

k = 4

a = 4h

By this equation,

For h = 2,

a = 8

For h = 3,

a = 12

For h = 4,

a = 16,

For h = 5,

a = 20

Since, for every input value there is a different output value,

Diagram shows a function.

Therefore, Option (3) will be the correct option.

Answer: got it correct

Step-by-step explanation:

And yeah

Answer:

Let´s define the variables:

x = number of people in theater A

y = number of people in theater B

We know that a 20% (or 0.2 in decimal form) of the people in theater A answered the survey, then the number of people from theater A that answered the survey is: Na = 0.2*x

We know that a 30% (or 0.3 in decimal form) of the people in theater B answered the survey, then the number of people from theater B that answered the survey is: Nb = 0.3*y

There where 800 people in total (counting from the two theatres)

Then x + y = 800.

A) In this case we have:

Na = Nb

this means that:

0.2*x = 0.3*y

and we also have the equation:

x  + y = 800

To solve this, we need to isolate one variable in one of the equations, i will isolate x in the second equation:

x = 800 - y

And now we can replace this in the other equation to get:

0.2*(800 - y) = 0.3*y

We need to solve this for y:

160 - 0.2*y = 0.3*y

160 = 0.3*y + 0.2*y = 0.5*y

160/0.5 = y = 320

Then there where 320 people in theater B, and:

x + y = 800

x + 320 = 800

x = 800 - 320 = 480

There where 480 people in theather A.

B) Now we have:

x = 440

y = 360

then:

Na = 0.2*440 = 88

In theater A, 88 people answered the survey.

Nb = 0.3*360 = 108

In theater B, 108 people answered the survey.

In total, 88 + 108 = 196 people answered the survey.

Answer:

D. The experimental probability is closer to the theoretical probability for group H than group G.

With any experimental probability, the more trials that are done will make the experiment move more likely to be the theoretical probability. in this case, the theoretical probability for flipping a coin is 50 heads 50 tails which H is closer to. any statistical data the more data collected the more close to reality it is.

Step-by-step explanation:

Answer:

B. The experimental probability and the theoretical probability for group X is the same.

1) 3 * x

2) multiplication (5 * x); subtraction (5x - 1)

Answer:

False

Step-by-step explanation:

2*2*2*2 is the correct answer

Answer:

False

Step-by-step explanation:

[tex]2^4=2\cdot 4\\\\Simplify\:\:2^4 =16\\Simplify\:\:2\cdot 4 = 8\\\\16=8\\\\\mathrm{The\:sides\:are\:not\:equal}\\\\\mathrm{False}[/tex]

Answer:

What Do U Mean By Jjj?? Can U Pls Reply

Answer:

What is jjj

Step-by-step explanation:

363636 seems like a big number are you sure that is what you wanted to put in?

Answer:

the blue line

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

2*4=8

Answer:

8 fourths

Step-by-step explanation:

Answer:

36.94

Step-by-step explanation:

Multiply 34.85 (the total cost of the book and mags) by 0.06 (cost of sales tax) = 2.91

34.94 + 2.91 = 36.94