PLEEEEEEEEEEASSEEEEEEE ANSWER QUESTION IS DOWN BELOW WORTH 15 POINTS each

PLEEEEEEEEEEASSEEEEEEE ANSWER QUESTION IS DOWN BELOW WORTH 15 POINTS Each

Answers

Answer 1

A ratio shows us the number of times a number contains another number. The ratio of the volume of the model to the volume of the original is 27/2744.

What is a Ratio?

A ratio shows us the number of times a number contains another number.

Given that the scale factor is 3:14. Therefore, the ratios can be written as,

(a) The ratio of the surface area of the model to the surface area of the original  is,

Surface area Ratio = (3/14)² = 9/196

(b) The ratio of the volume of the model to the volume of the original.

Volume Ratio = (3/14)³ = 27/2744

(c) The ratio of the width of the model to the width of the original.

Width Ratio = 3/14

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Related Questions

Q. 2 Find the HCF of 16, 44 and 84 by listing the factors.

Answers

The HCF is 4. Use ladder method to find it.

60% of a rectangular garden measuring 3 by 6 is covered by snow. What area of the garden is not covered by snow?

Answers

7.2 or 7 1/5 i believe

Find the y-intercept of the line.
=y−2.1x5.9

Answers

The y-intercept given line equation is 5.9.

Given that, the line of the equation is y-2.1x+5.9.

We need to find the y-intercept of the line.

What is slope-intercept form?

The standard form of slope-intercept form is y=mx+c.

Where, m=slope and c=y-intercept.

Using the slope-intercept form to find the y-intercept, we get c=5.9.

Hence, the y-intercept given line equation is 5.9.

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A graph shows the proportional relationship between the number of test questions a student gets correct, x, and the student’s test score, y. The ordered pair (1,5/4) is on the graph. What does the y- coordinate of the ordered pair represent in this relationship.

Answers

Answer:

The y-coordinate is 5/4, it represents a test score for one correct answer

Step-by-step explanation:

Proportional relationship is:

y = kx, where k is coefficient of proportion.

We have the ordered pair (1, 5/4), which represents:

5/4 = k*1 k = 5/4

When x = 1, the y- coordinate is equal to the coefficient of proportionality.

In this case it represents a score for one correct answer.

EXTREMELY URGENT!!! The angles of elevation of the top of two vertical towers as seen from the
middle point of the lines joining the foot of the towers are 45° & 60°. The ratio of the height of the towers is:

Answers

Since the angles of elevation of the top of two vertical towers is 45° & 60°, the ratio of the height of the towers is 0.58:1

How to find the ratio of the height of the towers

Since the angles of elevation of the top of two vertical towers as seen from the middle point of the lines joining the foot of the towers are 45° & 60°.

The height of the tower, the line of sight and the ground form a right angled trangle

Height of first tower

Let

h = height of first tower, d = distance of tower to middle point = L/2 where L = distance between tower and Ф = angle of elevation of tower from midpoint = 45°

Using trigonometric ratios, we have that

tanФ = h/d

= h/L/2

= 2h/L

So, h = LtanФ/2

= Ltan45°/2

= L/2 × 1

= L/2

Height of second tower

Let

h' = height of first tower, d = distance of tower to middle point = L/2 where L = distance between tower and Ф' = angle of elevation of tower from midpoint = 60°

Using trigonometric ratios, we have that

tanФ' = h'/d

= h'/L/2

= 2h'/L

So, h' = LtanФ'/2

= Ltan60°/2

= L/2 × √3

= √3L/2

Ratio of the height of the towers

So, the ratio of the height of the towers is n = h/h'

= L/2 ÷ √3L/2

= 1/√3

= 1/1.732

= 0.577

≅ 0.58

So, the ratio of the height of the towers is 0.58:1

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10.3 was subtracted from a number then that difference was multiplied by 7 after which the result was divided by 2.5. if the result of that divison is -7 then what was the initial number

Answers

Answer:

6

Step-by-step explanation:

i took the test

Geometry
Round volume to nearest tenth

Answers

Answer:

volume= [tex]912.9ft^{3}[/tex] (not sure how you want to round the answer. it could be rounded to 913 or left as 912.9)

Step-by-step explanation:

volume of cone: to find the height of the cone, subtract the cylinder height from the total height (H-h= cone height)

[tex]V=\pi r^2\frac{h}{3} \\V=\pi (5.6)^2(\frac{6.8}{3} )\\V=\pi (31.36)(2.2666...)\\V=71.08057\pi \\V=223.3062[/tex]

volume of cylinder:

[tex]V=\pi r^2h\\V=\pi (5.6)^2(7)\\V=\pi (31.36)(7)\\V=219.52\pi \\V=689.6424[/tex]

add them together:

[tex]V=223.3062+689.6424\\V=912.9486[/tex]

Please can somebody help me with this question

Answers

Answer:

the answer is=21

Step-by-step explanation:
u have to sum all of its sides
(length+breadth+height).


Blood contains three types of cells including red blood cells, white blood cells, and platelets. For approximately every 420 red blood cells in humans with certain medical conditions,
there are 30 platelets and 2 white blood cells. Write the ratio of red blood cells to platelet cells.
O Points:
a simplified fraction)

Answers

Step-by-step explanation:

Evalate the expression when m=4 and m=6

If 15 buses can carry 795 passengers, what is the total number of passengers that can be carried by 18 buses?

Answers

Answer:

954 passengers

Step-by-step explanation:

We can use ratios to solve

15 buses                   18 buses

--------------             = ---------------

795 passengers      x passengers

Using cross products

15 * x = 18 * 795

15x = 14310

Divide each side by 15

15x/15 = 14310 /15

x =954

18 buses can carry 954 passengers

[tex]\displaystyle \rm \int_{1 - \sqrt{\pi x} \large \frac{ {d}^{ {1/2 }} }{ {dx}^{1/2} } \small(1) }^{ \sum \limits_{n = 1}^ \infty \frac{4}{4 {n}^{2} - 1 } } \frac{arctan( \frac{2 - x}{1 + 2x}) }{ {x}^{2} - 4x - 1} dx[/tex]​

Answers

There's nothing particularly tricky about the limits of integration. The upper limit is a telescoping series converging to 2,

[tex]\displaystyle \sum_{n=1}^\infty \frac4{4n^2-1} = 2 \sum_{n=1}^\infty \left(\frac1{2n-1} - \frac1{2n+1}\right) \\\\ ~~~~~~~~ = 2 \left(\left(1-\frac13\right)+\left(\frac13-\frac15\right) + \left(\frac15 - \frac17\right) + \cdots\right)[/tex]

The lower limit reduces to 0 using the Riemann-Liouville definition of the fractional derivative. For [tex]q\in\Bbb Q[/tex], let

[tex]\displaystyle \frac{d^q}{dx^q} f(x) = \frac1{\Gamma(\lceil q\rceil-q)} \frac{d^{\lceil q\rceil}}{dx^{\lceil q\rceil}} \int_a^x (x-t)^{\lceil q\rceil-q-1} f(t) \, dt[/tex]

With [tex]a=0[/tex], [tex]q=\frac12[/tex] and [tex]\lceil q\rceil=1[/tex], it follows that

[tex]\displaystyle \frac{d^{1/2}}{dx^{1/2}} 1 = \frac1{\Gamma\left(\frac12\right)} \frac d{dx} \int_0^x (x-t)^{-1/2} \, dt = \frac1{\sqrt{\pi x}}[/tex]

Let

[tex]\displaystyle I = \int_0^2 \frac{\tan^{-1}\left(\frac{2-x}{1+2x}\right)}{x^2-4x-1} \, dx[/tex]

Observe that

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

is its own inverse, so by substituting [tex]\frac{2-x}{1+2x}\mapsto x[/tex], we get the equivalent integral

[tex]\displaystyle \int_0^2 \frac{\tan^{-1}(x)}{x^2-4x-1} \, dx[/tex]

We have the identity

[tex]\tan^{-1}(x) + \tan^{-1}\left(\dfrac{2-x}{1+2x}\right) = \tan^{-1}(2)[/tex]

so that

[tex]\displaystyle I + I = \int_0^2 \frac{\tan^{-1}\left(\frac{2-x}{1+2x}\right) + \tan^{-1}(x)}{x^2-4x-1} \, dx[/tex]

[tex]\implies \displaystyle I = \frac{\tan^{-1}(2)}2 \int_0^2 \frac{dx}{(x-2)^2-5}[/tex]

The remaining integral is trivial,

[tex]\displaystyle \int_0^2 \frac{dx}{(x-2)^2-5} = \int_{-2}^0 \frac{dx}{x^2-5} \\\\ ~~~~~~~~ = \frac1{2\sqrt5} \int_{-2}^0 \left(\frac1{x-\sqrt5} - \frac1{x+\sqrt5}\right) \, dx \\\\ ~~~~~~~~= -\frac{\ln(2+\sqrt5)}{2\sqrt5} \\\\ ~~~~~~~~ = -\frac1{\sqrt5} \tanh^{-1}\left(\dfrac2{\sqrt5}\right)[/tex]

Then the integral we want is

[tex]I = \displaystyle \int_0^2 \frac{\tan^{-1}\left(\frac{2-x}{1+2x}\right)}{x^2-4x-1} \, dx = \boxed{-\frac1{2\sqrt5} \tan^{-1}(2) \, \tanh^{-1}\left(\dfrac2{\sqrt5}\right)} \approx -0.357395[/tex]

Two bikers meet at a park. Biker A needs to stop at the store that is 12 miles east of the park. Biker B heads southeast at a 61° angle at the same time for 24 miles. Once biker A leaves the store he heads southwest at an angle of 89° for 21 miles. Do NOT use the law of cosines, use your knowledge from the content of this course.

Answers

Two bikers meet at a park at A


What is triangle?

The triangle is geometric shape which includes 3 sides and sum of interior angle should not grater than 180°

Biker A needs to stop at the store that is 12 miles east of the park. Biker B heads southeast at a 61° angle at the same time for 24 miles. Once biker A leaves the store he heads southwest at an angle of 89° for 21 miles.

By following of the above statement the triangle is formed shown in  the image attached below.

Thus, without using cosine formula, by drawing the triangle according to
the statement. At point A both the bikers were meet

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Identify a transformation of the function ƒ(x) = x2 by observing the equation of the function g(x) = (x – 6)2.

Answers

f(x) moves 6 unit towards right side along X-axis and forms the function g(x).

Given that, the original function is

[tex]f(x)=x^2[/tex]

and now the function is

[tex]g(x) =(x-6)^2[/tex]

When f(x)=0 then we can get by calculating that,

[tex]x^2=0[/tex]

x=0

So, the f(x) function satisfied by point (0,0).

Now when g(x)=0 then by calculating that we get,

[tex](x-6)^2=0[/tex]

x-6 = 0

x = 6

So g(x) function satisfied by (6,0).

In geometrical words we can say that if we transform from f(x) to g(x) then (0,0) tranformed to (6,0).

That suggests that the function moves 6 unit right along X axis, which is towards positive X axis.

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A line passes through the point (-3,4) and has a slope of -5. Find an equation of this line

Answers

Answer:

y = -5x - 11

Step-by-step explanation:

We are given that a line passes through the point (-3,4) and also has a slope of -5.

We want to write an equation of this line.

The equation of the line can be written in 3 different ways:

Slope-intercept form, which is written as y=mx+b, where m is the slope and b is the y intercept.Standard form, which is written as ax+by=c, where a, b, and c are free integer coefficients (but a and b cannot be 0, and a cannot be negative). Slope-point form, which is written as [tex]y-y_1=m(x-x_1)[/tex], where m is the slope, and [tex](x_1, y_1)[/tex] is a point

Since the question did not specify, any of these 3 options will be valid, however, the most common way to write the equation of the line is in slope-intercept form, so let's do it that way.

Because we are already given the value of the slope, we can immediately plug that into the equation.

Replace m with -5.

y = -5x + b

Now we need to find b.

As the equation passes through the point (-3, 4), we can use its values to help solve for b.

Substitute -3 as x and 4 as y.

4 = -5(-3) + b

Multiply

4 = 15 + b

Subtract 15 from both sides.

-11 = b

Substitute -11 as b in the equation.

y = -5x - 11

Topic: finding the equation of the line

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Please help me with problem 3 (a-d). Thank you!

Answers

Using the spread sheet we can easily get the answers:

The statistical section helps find answers by putting the accurate formula or the graphing calculator.

ANOVA      

Source of Variation SS   df     MS         F        P-value      F crit

Between Groups 1471.33    2 735.68 11.59   0.001072834 3.7389

Within Groups 888.55 14 63.4677      

Total              2359.882 16    

The APA style refers to Times New Roman Font 12 pts.

The effect size of the result is 0.6233 medium

Part A

ANOVA      

Source of Variation SS   df     MS F        P-value F crit

Between Groups 1471.33    2 735.68 11.59   0.001072834 3.7389

Within Groups 888.55 14 63.4677      

Total        2359.882 16    

1) The null and alternative hypotheses are

H0: u1=u2=u3

Ha: Not all means are equal

2) The significance level is alpha = 0.05

3) The test statistic F = sb²/sw²

Which if H0 is true has an F distribution with ν1=2 and  v2= 14 degrees of freedom.

The computations are

Anova: Single Factor            

Groups Count Sum Average            Variance  

Column 1      6          373    62.16666667      78.96666667  

Column 2 4 324              81             60.66666667  

Column 3 7 402        57.42857143     51.95238095  

     

     

ANOVA      

Source of Variation SS   df     MS F        P-value F crit

Between Groups 1471.33    2 735.68 11.59   0.001072834 3.7389

Within Groups 888.55 14 63.46768707      

Total        2359.882353 16  

5) The critical region is F ≥ F(0.05)(2,14) = 3.74

6) Conclusion:

Since the computed value F= 3.73 does not fall in the critical region F> 3.74 so we accept H0 and conclude that there is no significant difference in the three means.

Part D: The effect size of the result is 0.6233 medium and  calculated by

η²= ss between/ ss between + ss error

η²= 1471/1471+889

η²= 0.6233

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First accurate answer gets brainliest

Answers

Answer: C, (-1, -5)

Step-by-step explanation:

A = 2, B = 4, C = -3

We know the graph opens up because a is positive.

This rules out A and D

We are left with B and C as options.

Let's change this into vertex form

[tex]y=a(x-h)^2[/tex]

Complete the square

[tex]2(x+1)^2-5[/tex]

now a = 2, h = 1, k = -5

The vertex is (h, k)

plug in values:

(-1, -5)

Which of the following is the best strategy to support children in learning about shapes?
a. Purchase a complete, wooden collection of two-and three- dimensional shapes from educational supply catalog.
b. Plan opportunities for children to talk about what is and what is not a shape and identify attribo les that define shapes.
C. Provide multiple worksheets with pictures of the basic shapes for children to color.

Answers

The best option is C. Provide multiple worksheets with pictures of the basic shapes for children to colour.

What does the learning process in children involve?

The process of learning has often been described to include all but not limited to the following:

gaining new understanding, learning new behaviours,skills,values, attitudes, andpreferences.

Children according to experts learn faster and easily remember what they see. Hence, providing multiple worksheets with pictures of the basic shapes for children to colour is the most cost-efficient strategy to support children in learning about shapes.

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Hey brainly gang I'm having trouble could someone help me out. Solve for x.

Answers

Answer: x=9

Step-by-step explanation:

Since this shape is a parallelogram, the diagonals perpendicularly bisect each other. So EH =HG

5x-3=2x+24

3x=27

x=9

Substituing x=9 to EH and HG

EH: 5(9)-3=42

HG: 2(9)+24=42

what is the reminder when X³ +4X² - 2X + I is divided by X + 1 what is the reminder when X³ + 4X² - 2X + I is divided by X + 1​

Answers

Answer:

6

Step-by-step explanation:

Marc mixes blue and yellow paint to make his favorite shade of green, which he'll use to paint his house. He has 14 cans of blue paint and 20 cans of yellow paint when he starts.

He wants the same green color every time he mixes, so the amounts of blue and yellow must always be proportional to the original mixture.

On day 1, he mixes 4 cans of blue and 6 cans of yellow.
On day 2, he mixes 6 cans of blue and 9 cans of yellow.

Fill in the blanks to find the highest number of cans of each color Marc can mix to make the same shade of green on day 3.

Answers

The ratio of blue paint to yellow paint is 2 : 3.

The total number of blue paint he used on the first and second day is 10.

The number of yellow paint he used on the first and second day is 15.

On the third day, the highest number of can of blue paint he can use is 2

On the third day, the highest number of can of yellow paint he can use is 3.

What is the highest number of blue and yellow paint he can use?

The ratio of blue paint to yellow paint can be determined by determining the simplest form of the paints used: 4 : 6 = 2: 3

Total blue paint cans used on the first and second day = 4 + 6 = 10

Blue paint cans remaining = 14 - 10 = 4

Total yellow paint cans used on the first and second day = 6 + 9 = 15 cans

Yellow paint cans remaining = 20 - 15 = 5 cans

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There are currently 3000 moose in the state of Colorado. Their population is increasing at a rate of 2% per year. How many years will it be before there are 6000 moose in the state of Colorado. Round your answer to the nearest year.

Answers

Answer:

35 years from now.

Step-by-step explanation:

The quantity of moose as a function of time is as follows:

[tex]M(t) = 3000(1.02)^{t}.[/tex]

Thus, for [tex]M < 6000:[/tex]

[tex]3000(1.02)^{t} < 6000\\\\1.02^{t} < 2\\\\t < \frac{log\,2}{log\,1.02}\\\\ t < 35.003\,\,years.[/tex]

f(x) = 3/x+2-√x-3
The domain for f(x) is all real numbers ___ than it equal to 3

Answers

The domain of f(x) is all real numbers > than it equal to 3, for f(x) = 3/x + 2 - √(x - 3).

The domain of a function f(x) is the set of all real values of x, for which real f(x) exists.

In the question, we are asked to find the domain of the function f(x) = 3/x + 2 - √(x - 3).

To find the domain of f(x), we need to check the real values of x, for which real f(x) exists.

We check each part of f(x):

For 3/x, every x gives a real value except x = 0.

For 2, every x gives a real value as it is not dependent on x.

For √(x - 3), real values exist when x - 3 ≥ 0, as negative square roots are not real.

Therefore, after assessing each term, we can say that the domain for f(x) is x - 3 ≥ 0, or x ≥ 3.

Therefore, the domain of f(x) is all real numbers > than it equal to 3, for f(x) = 3/x + 2 - √(x - 3).

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Find y

please please please help

Answers

Answer: [tex]y=26^{\circ}[/tex]

Step-by-step explanation:

Using linear pairs, we can determine the two angles in the picture attached.

Thus, as angles in a triangle add to [tex]180^{\circ}[/tex], [tex]y=26^{\circ}[/tex]

The table shows all possible outcomes for rolling two sixed numbers cubes

Answers

The probability of rolling an even number first and an odd number second is 1/4.

What is the probability?

Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The probability of rolling an even number first and an odd number second = (numbers that have the even number first and odd number second / total sample space)

9/36 = 1/4

Here is the complete question:

The table below shows all of the possible outcomes for rolling two six-sided number cubes. What is the probability of rolling an even number first and an odd number second?

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What is 11 3/8 divided in half

Answers

Answer:

in fraction form it is : 5 11/16

Decimal form it is : 5.6875

Step-by-step explanation:

convert the mixed number into improper fractions: 11 3/8 = 91/8

= 91/8 / 8/2


Apollyon the fraction rule: a/b / c = a / b * c

= 91/8 * 2


Multiply the numbers: 8 * 2 = 16

= 91/15


convert the improper fractions into mixed numbers: 91/16 = 5 11/16

Final answer of:
= 5 11/16

4cos(-5B) sin3B is equivalent to

Answers

The trigonometric identity 4cos(-5B) sin3B is equivalent to 2[sin(8B) - sin(2B)]

How to find the trigonometric identity 4cos(-5B) sin3B is equivalent to?

Since we have 4cos(-5B) sin3B

Using the trigonometric identity

sin(x + y) - sin(x - y) = 2cosxsiny

So, cosxsiny = [sin(x + y) - sin(x - y)]/2

Since we have 4cos(-5B) sin3B, comparing cos(-5B) sin3B with cosxsiny, we have

x = -5B and y = 3B

So, we have cos(-5B)sin3B = [sin(-5B + 3B) - sin(-5B - 3B)]/2

= [sin(-2B) - sin(-8B)]/2

=  [-sin(2B) - {-sin(8B)}]/2 [since sin(-2B) = -sin(2B)]

=  [-sin(2B) + sin(8B)]/2

= [sin(8B) - sin(2B)]/2

So, 4cos(-5B)sin3B = 4 × [sin(8B) - sin(2B)]/2

= 2[sin(8B) - sin(2B)]

So, the trigonometric identity 4cos(-5B) sin3B is equivalent to 2[sin(8B) - sin(2B)]

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factor: (14.25r^4-24.375r^3+10.125)=0

Answers

Answer:

1, 1.5

Step-by-step explanation:

Use the rational roots theorem. Factor out until you get the maximum simplification.

0.375(x−1)(2x−3)(19x2+15x+9)

However, if you wanted to solve this equation for r, you will get 1, 1.5 using the quartic formula.

Solve for the missing item in the following. (Do not round intermediate calculations. Round your answer to the nearest whole percent.)
Principal 5,000 time 6 months simple interest 300

Rate?

Answers

The rate is 1.2%.

What is Simple interest?

Simple interest is interest calculated on the principal portion of a loan or the original contribution to a savings account.

Given:

P = 5000

T =6 month= 1/2 year

SI= 300

We know,

SI= P*R*T/100

300= 500* R * 1 /200

60000= 500R

R= 60000/500

R= 120

R= 1.2%

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Please help!! Simplify the following expression in terms of fractional exponents and write it in the following form.

Answers

Answer:

[tex]\huge{\boxed{ \huge{\sf 10^{\frac{4}{5} } x^\frac{1}{5} }}}[/tex]

Explanation:

Exponent rules:

[tex]\sqrt[\sf n]{\sf x^b} = \sf x^{\sf \frac{b}{n} }[/tex]

Given expression:

[tex]\sqrt[\sf 5]{\sf 10^4 x}[/tex]

breakdown

[tex]\sqrt[\sf 5]{\sf 10^4} \sqrt[\sf 5]{\sf x}[/tex]

rewrite expression

[tex]\sf 10^{\frac{4}{5} } x^\frac{1}{5}[/tex]

100 POINTS!!! Find the exact length of side a.
Has to be one of the four options

Answers

Answer: a = 2√3

First method (Pythagoras theorem):

a² + b² = c²

a² + 2² = 4²

a² = 16 - 4

a = √12

a = 2√3

Second method (sine rule):

opposite/hypotenuse = sin(x)

a/4 = sin(60)

a = 4sin(60)

a = 2√3

Third method (tan rule):

opposite/adjacent = tan(x)

a/2 = tan(60)

a = 2tan(60)

a = 2√3

Answer:

2√3

Step-by-step explanation:

From inspection of the given triangle:

Side a is opposite angle A ⇒ a = BCSide b is opposite angle B ⇒ b = ACSide c is opposite angle C ⇒ c = AB

As we cannot be sure that ΔABC is a right triangle since it is not marked as such, use the cosine rule to find the exact length of side a.

Cosine Rule

[tex]a^2=b^2+c^2-2bc \cos A[/tex]

where a, b and c are the sides and A is the angle opposite side a

Given:

A = 60°b = 2c = 4

Substitute the given values into the formula and solve for a:

[tex]\implies a^2=2^2+4^2-2(2)(4) \cos 60^{\circ}[/tex]

[tex]\implies a^2=4+16-16\left(\dfrac{1}{2}\right)[/tex]

[tex]\implies a^2=20-8[/tex]

[tex]\implies a^2=12[/tex]

[tex]\implies a=\sqrt{12}[/tex]

[tex]\implies a=\sqrt{4 \cdot 3}[/tex]

[tex]\implies a=\sqrt{4}{\sqrt{3}[/tex]

[tex]\implies a=2\sqrt{3}[/tex]

Therefore, the exact length of side a is 2√3.

To find out if ΔABC is a right triangle, use Pythagoras Theorem to solve for side a:

[tex]\implies a^2+b^2=c^2[/tex]

[tex]\implies a^2+2^2=4^2[/tex]

[tex]\implies a^2+4=16[/tex]

[tex]\implies a^2=12[/tex]

[tex]\implies a=\sqrt{12}[/tex]

[tex]\implies a=2\sqrt{3}[/tex]

As the measure of side a is the same as the solution found when using the cosine rule, we can conclude that ΔABC is a right triangle.

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