Find the missing angle.

Let's take this fun problem step-by-step:

Let's first analyze the triangle:  ΔBRE

  ∠B + ∠E + ∠R = 180

  45 + 35 + ∠R = 180

    ∠R = 100   ⇒ ∠BRE = 100 degrees

Now let's analyze ΔAQD

 ∠A + ∠Q + ∠D = 180

 30 + ∠Q + 50 = 180

    ∠Q = 100 degrees ⇒ ∠AQD = 180 degrees

Now let's consider another fact:

           ⇒ meaning that ∠AQD + ∠RQC = 180 degrees

              ⇒ ∠RQC = 180 degrees - ∠AQD = 180 - 100 = 80 degrees

            ⇒ meaning that ∠BRE + ∠BRC = 180 degrees

                ⇔ ∠BRC = 180 degrees - ∠BRE = 180 - 100 = 80 degrees

Now let's consider ΔQRC:

  ∠BRC + ∠RQC + ∠QCR = 180 degrees

   80 + 80 + x = 180

         x = 20 degrees

Answer: 20 degrees

Hope that helps!

Answer:

=1800g

Step-by-step explanation:

T + S=4050

T + W=2550

let s:w be 3t:t

4050-3t=2550-t

collect like terms

-2t= -1500

-2 -2

t=750g

therefore

T= 2550-750

=1800g

Answer:

Step-by-step explanation:

To find:

Given:

The mean is calculated by dividing all the values in a set by their left-to-right numbers.

To begin, add up all the means numbers.

Solve.

Solutions:

[tex]\Longrightarrow: \sf{28+18+19+18+17=100}[/tex]

Five mean numbers are given.

All you have to do is divide them.

[tex]\Longrightarrow: \sf{100\div5=\boxed{\sf{20}}[/tex]

[tex]\Longrightarrow: \boxed{\sf{20}}[/tex]

I hope this helps, let me know if you have any questions.

Good luck with your assignment!

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Answer:

it's a non-function

Answer:

The formula for volume of a cone is area of a circle times height, divided by 3.

Therefore volume is pi times radius squared times height, divided by 3.

V = (3.14)(14)^2 (14)/3

V = (3.14) (196)(14)/3

V = (3.14) (2744)/3

V = 8616.16/3

V = 2872.05333

to the nearest hundredth is 2872.05 cubic yards.

Step-by-step explanation:

Answer:

2872.05

Step-by-step explanation:

It's real simple mainly it's all about dividing

Answer:

(Anna)

month 1: 20 1/4

m2: 20

m3: 20 2/3

m4: 21 1/2

(Grace)

month 1:18 3/4

m2: 19 1/2

m3: 20 1/4

m4: 21

Step-by-step explanation:

you just take the first month plus 3/4 and then take the answer to that plus 3/4 and just do that repeatedly till you reach your needed

hope it's right and helps!!

Considering that the graph contains an asymptote and does not cross it, an exponential function is modeled.

It is modeled by:

[tex]y = ab^x + c[/tex]

In which:

Hence, in this problem, an exponential function with asymptote at y = 0 is modeled by the graph.

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Answer: Logarithmic

Step-by-step explanation:

it correct

The mathematical ideas that are involved in the cannonball are quadratic functions and parabolas

When the cannonball is launched, it would follow a parabolic path.

Parabolas are represented by quadratic functions.

Hence, the mathematical ideas/concepts are involved are quadratic functions and parabolas

The quantities that can be measured are:

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Answer:

9:41

Step-by-step explanation:

Let's solve this in the most simplified version.

⇒ 4: 54

⇒ 13 Minutes Before

( 54 - 13)

= 4:41

Subtract 13 from 4

= -9

Eliminate the negative sign.

⇒ 9:00 .

Add the "41" to the time:

⇒ Final result: 9:41

[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ (\stackrel{x_1}{4}~,~\stackrel{y_1}{-2})\qquad (\stackrel{x_2}{-8}~,~\stackrel{y_2}{6}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ -8 + 4}{2}~~~ ,~~~ \cfrac{ 6 -2}{2} \right)\implies \left( \cfrac{-4}{2}~~,~~\cfrac{4}{2} \right)\implies (-2~~,~~2)[/tex]

The area of a 2D form is the amount of space within its perimeter. The area of the composite figure is 74.137 ft².

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The area of the composite figure will be the sum of the area of the rectangle and the area of the semi-circle, therefore, the area of the composite figure will be,

Area = Area of rectangle + Area of the hemisphere

        = (10×6) + [(π/2)×3²]

        = 60 + 14.137

        = 74.137 ft²

Hence, the area of the composite figure is 74.137 ft².

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Answer:

see below

Step-by-step explanation:

distance / rate = time

x = walking distance        20 -x = biking distance

x / 4 m/hr   +   (20-x) / 12 m/hr    =   3 hours

x/4   + ( 20-x) /12 = 3     multiply both sides of the equation by 12  

3x  + 20 -x  = 36

2x = 16

x = 8      8 miles walking    then   12 miles biking

Answer:

C = 8.45 m

Step-by-step explanation:

The equation to find the circumference of a circle is:

[tex]C=2\pi r[/tex]

r = radius

To find the radius, divide the diameter by 2:

r = 2.69 m/2 = 1.345 m

Now, plug the radius into the equation:

[tex]C = 2\pi (1.345)[/tex]

Use a calculator to get the final answer:

C = 8.45 m

Hope this helps!!

a)The high and low tides occur at when the value of cos function is an odd and even multiple of the π respectively.

b)The respective depths of the ocean at high tides and low tides will be 8 ft and 2 ft.

A function is a statement, rule, or law that specifies the connection between two variables. Functions are common in mathematics and are required for the formulation of physical connections.

Modeling the depth of the Atlantic Ocean at a channel buoy off the coast of Maine is;

[tex]\rm y = 5-3 cos (\frac{\pi}{6} t)[/tex]

a) High tide's value of 'y' when the value of y is maximum. value of cosine is minimum.

The minimum value of cosθ  = 1.

The standard form to write the cos function is as;

θ=(2n+1)π

Whenever. high tides occur when it equals odd multiples of π. Similarly, at a Value of even multiples of even function, low tides are at their peak.

Hence,the high and low tides occur at when the value of cos function is an odd and even multiple of the π respectively.

At high tide;

соsӨ = - 1 (min value)

y= 5-3(-1)

y = 5+3

y=8 ft

At low tide,соsӨ = + 1 (max value)

y =5-3(1)

y= 5-3

y= 2

Hence,the respective depths of the ocean at high tides and low tides will be 8 ft and 2 ft.

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Answer:

-13

Step-by-step explanation:

it must be either -11 or -13. -13 is less  than -12.

The model for representing the ratio of the number of orange and green rolls are   [tex]\dfrac{3}{2}=\dfrac{O}{G}[/tex]

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms will be  3O=2G

The ratio is defined as the representation of the one number with respect to the other number. or one number is how many times to the other number.

A model that represents the ratio of different coloured streamers.

 [tex]\dfrac{3}{2}=\dfrac{O}{G}[/tex]

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.

3O=2G

Hence the models are    [tex]\dfrac{3}{2}=\dfrac{O}{G}[/tex]   and     3O=2G

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Answer:

-3

Step-by-step explanation:

So 21 - 6 = 15

15 - 6 = 9

9 - 6 = 3

3 - 6 = -3

Hope it helps :))

Answer:

its b i think maybe i might be wrong

Step-by-step explanation:

have a nice day :)

Answer:

Your answer is 5/18

Step by step Explanation:

8/9 × 16/5

When we divide it becomes reverse so,

8/9 × 5/16 = 5/18.

Answer:

$3062

Step by Step Explanation:

Arturo's rent can also be written as an expression

2t + 50

This is basically showing that two of Tom's rent plus $50 gives you his brother's rent.

So 2(1506) + 50

3012 + 50

3062

Answer:

2 .3   and  5  

Step-by-step explanation:

Answer:

24 Numbers can be made that are different!

Step-by-step explanation:

I got 24 numbers

1358 , 1385 , 1835 , 1853 , 1583, 1538

3581 , 3518 , 3851 , 3815 , 3185 , 3158

5381 , 5318 , 5138 , 5183 , 5813 , 5831

8531 , 8513 , 8153 , 8135 , 8351 , 8315

Hope this helps!

Answer:

[tex]m=80.840 kg[/tex]

Step-by-step explanation:

Given Data,

Q=23000 J

c=4.184 J/g °c

Δt= 68 °c

m=?

By using this equation,

Q=mcΔt

[tex]23000=m\times 4.184\times 68\\\\m=\frac{23000}{4.184\times68} \\\\\\m=80.840 kg[/tex]

Answer:

30%. Based on the given conditions, formulate: 12/40 Cross out the common factor: 3/10 Multiply a number.

Step-by-step explanation:

Answer:

s = 3

Step-by-step explanation:

Solving

Answer:

-140

Step-by-step explanation:

Answer:

b.  h = 2A/b.

Step-by-step explanation:

A = 1/2 bh

Multiply through by 2:

2A = bh

Divide both sides by b:

h = 2A/b.

Answer:

c

Step-by-step explanation:

-3≤7c+4<18

-3-4≤7c+4-4<18-4

-7≤7c<14

divide by 7

-1≤c<2