What is the value of x?

What Is The Value Of X?

Answers

Answer 1
straight line = 180, so 180-100=80, a triangle = 180, x equals to 180-(70+80) =30, the answer is a
Answer 2
This is actually a relatively simple problem, but because the other angle is missing, it seems complex.

The angle adjacent to the 100 degree outside the triangle is 80 degrees. We know this because it is a supplementary angle, or an angle that, when added along with another angle’s measurement, makes 180 degrees. The line is straight, so the other angle must be 80 degrees to add up with the 100 to make 180 degrees.

Now that we know the other unknown angle, we can use the fact that the sum of angles within a triangle make 180 degrees. The two angles inside the triangle that we know make 150 degrees (80 plus 50), so the final angle ‘x’ must be 30 degrees (180-150=30).

Related Questions

Similar triangles ABC and PQR are located on the coordinate plane. The sin A = sin P = 7 over 8. If triangle PQR is translated 3 units to the left and dilated by a scale factor of two, what is the resulting value of sin P?

negative 7 over 8
4 over 5
7 over 8
14 over 16

Question 2)

If the tan of angle x is 4 over 3 and the triangle is dilated to be two times as big as the original, what would be the value of the tan of x for the dilated triangle?

8 over 6
4 over 3
8 over 3
The tan value cannot be determined for the dilated triangle.

Question 3

If the sin of angle x is 3 over 7 and the triangle is dilated to be three times as big as the original, what would be the value of the sin of x for the dilated triangle?

3 over 7
6 over 14
9 over 21
The sin value cannot be determined for the dilated triangle.



Answers

When you dilate a triangle, the angles don't change, then the trigonometric functions don't change.

Question 1
Answer: The resulting value of sin P is: Third option 7 over 8

Question 2
Answer: The value of the tan of x for the dilated triangle would be: Second option 4 over 3

Question 3
Answer: The value of the sin of x for the dilated triangle would be : First option 3 over 7

Sam is making a histogram of the height in inches of all 250 students in his grade. The shortest person is 48 inches and the tallest is 60 inches. How wide should his x-axis intervals be? A) 2 B) 5 C) 8 D) 12

Answers

a) 2 
i need to have 20 characters so ...

Answer:

The answer is A) 2.

Step-by-step explanation:

The best way would be to use intervals of 2.

We know that the shortest persons 48 inches and the tallest 60 inches.

The difference between the tallest person and the shortest is:

60 - 48 = 12 inches

Since the difference is small, we might use intervals smaller than 12 because if we used intervals of 12, we wouldn't know for sure the heights of the other students, and we would have to estimate their heights.

Using intervals of 8 would be the same, we would have to estimate the heights of most students.

Using 5 , would also not be a good choice because 5 is not a multiple of 48, 60 or 12, therefore, that

Therefore, 2 would be the best option, as you don't have to estimate and the intervals would match the shortest and tallest height.

Help me I don’t understand this

Answers

40° + 7 = 47
180° - 47 = 133°

Hope this Helps!!
PLEASE RATE 5 STARS

Your answer would be 5.90 for the following reasons:

If you take your angle measurement (40) and the length from A to B you would  come out with this formula: 7 x tan 40

To figure this out on a calculator press "TAN" and type 40 and then multiply it by 7 and your answer would be 5.87 but rounded to the nearest hundredth it would be 5.90. 

There is a spinner with 11 equal areas, number 1 through 11. If the spinner is spun one time, what is the probability that the result is a multiple of 5 and a multiple of 2?

Answers

The probability that the result is a multiple of 5 and a multiple of 2 is 6/11

How to calculate the probability of an event?

Suppose that there are finite elementary events in the sample space of the considered experiment, and all are equally likely.

Then, suppose we want to find the probability of an event E.

Then, its probability is given as

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text{Number of total cases}} = \dfrac{n(E)}{n(S)}[/tex]

where favorable cases are those elementary events who belong to E, and total cases are the size of the sample space.

For this case, we're given that:

Spinner has 11 parts, numbered 1, 2, .... , 11P(result of spin is multiple of 5 or multiple of 2) = To find.

Take E = Event of spinner's spin resulting in multiple of 5 or multiple of 2

S = results of Sample

Then, favorable results (in favor of E) are: 2,4,5,6,8,10 (total 6 in count)

All possible results are 1, 2, ... , 11  (total 11 in count)

Thus, we get:

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text{Number of total cases}} = \dfrac{6}{11}[/tex]

Thus, the probability that the result is a multiple of 5 and a multiple of 2 is 6/11

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Final answer:

In a spinner numbered 1 through 11, there is only one number (10) that is both a multiple of 5 and a multiple of 2. As there are 11 possible outcomes in a single spin, the probability of spinning and landing on 10 is 1/11.

Explanation:

The subject of this question is mathematical probability. Given that there is a spinner with 11 equal areas numbered 1 through 11, we are asked to find the probability of landing on a number that is both a multiple of 5 and a multiple of 2 when the spinner is spun once.

Firstly, we identify the numbers which are both multiples of 5 and 2 between 1 and 11. In this case, only one such number exists, which is 10. Hence, there is only one favorable outcome. The total number of outcomes are 11 (as the spinner has 11 equal areas).

Probability is defined as 'number of favorable outcomes' divided by the 'total number of outcomes'. In this case, since there is 1 favorable outcome (i.e. landing on '10') and 11 possible outcomes (any of the numbers 1 to 11), the probability is therefore 1/11.

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Draw a box plot for the data:
135, 149, 156, 112, 134, 141, 154, 116, 134, 156

Answers

The box plot is attached.

We first order the data from least to greatest:
112, 116, 134, 134, 135, 141, 149, 154, 156, 156

We find the median (middle value).  There are 10 data values, which puts the median between 135 and 141:
(135+141)/2 = 276/2 = 138

The Upper Quartile (UQ) is the median of the upper half of data, cut by the median.  This is 154.

The Lower Quartile (LQ) is the median of the lower half of data, cut by the median.  This is 134.

The middle line of the box is drawn at the median, 138.  The left side of the box is at the LQ, 134.  The right side of the box is at the UQ, 154.  There is a whisker drawn from the right side to the highest value, 156.  There is a whisker drawn from the left side to the smallest value, 112.

The solution is: The box plot is attached.

What is median?

In statistics and probability theory, the median is the value separating the higher half from the lower half of a data sample, a population, or a probability distribution. For a data set, it may be thought of as "the middle" value.

We first order the data from least to greatest:

112, 116, 134, 134, 135, 141, 149, 154, 156, 156

We find the median (middle value).  There are 10 data values, which puts the median between 135 and 141:

(135+141)/2 = 276/2 = 138

The Upper Quartile (UQ) is the median of the upper half of data, cut by the median.  This is 154.

The Lower Quartile (LQ) is the median of the lower half of data, cut by the median.  This is 134.

The middle line of the box is drawn at the median, 138.  The left side of the box is at the LQ, 134.  The right side of the box is at the UQ, 154.  There is a whisker drawn from the right side to the highest value, 156.  There is a whisker drawn from the left side to the smallest value, 112.

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I don’t really get how to do this?

Answers

The area of the whole shaded region is 12 * 10 = 120. 

There is the smaller non-shaded box though of 7 * 2 = 14. 

Take the difference of the two by doing 120 - 14 = 106 and that's your answer. 

106 m²
Step One
Find the area of the unshaded region
The unshaded region is a rectangle. Its area will be
A = L * W
L = 7 m
W =2 m 

Area = 7 * 2 = 14 m^2

Step Two
Find the Area of the entire region, both shaded and unshaded areas.
A = L * W
L = 10 m
W = 12 m

Area = 12 * 10 = 120 m^2

Step Three 
Find the area of the shaded region.
Shaded Area = whole area - unshaded region
Shaded Area =  120 m^2 - 14 m^2
Shaded Area = 106 m^2

Answer: 106 m^2

In a study of 38% of adults questioned reported that their health was excellent. a researcher wishes to study the health of people living close to a nuclear power plant. find the probability that when 11 adults are randomly selected, at most 3 are in excellent health

Answers

The probability that when 12 adults are randomly selected, 3 or fewer are in excellent health is 0.947.

To find the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health, we can use the binomial distribution formula.

The formula for the probability of getting exactly k successes in n trials, with a probability of success p, is:

P(X = k) = (n choose k) * (p^k) * ((1-p)^(n-k))

In this case, n = 12, k = 3, and p = 0.38 (as 38% of adults reported excellent health).

So, the probability that 3 or fewer adults are in excellent health can be calculated as follows:

P(X <= 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

Let's calculate each term:

P(X = 0) = (12 choose 0) * (0.38^0) * (0.62^12) = 0.190P(X = 1) = (12 choose 1) * (0.38^1) * (0.62^11) = 0.342P(X = 2) = (12 choose 2) * (0.38^2) * (0.62^10) = 0.269P(X = 3) = (12 choose 3) * (0.38^3) * (0.62^9) = 0.146

Adding up these probabilities:

P(X <= 3) = 0.190 + 0.342 + 0.269 + 0.146 = 0.947

Rounded to three decimal places, the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health is 0.947.

The probable question may be:

In a study, 38% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people living close to a nuclear power plant. Among 12 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health. Round to three decimal places.

Simplify the expression below. 6n2 - 5n2 + 7n2

Answers

The answer to the question is
18n^2
The answer is 8n^2. You just simplify the expression.

The slope of BY is -1/5, and BYllJE
What is the slope of JE?

-5
-1/5
1/5
5

Answers

I believe "BY || JE" means that those two lines are congruent, which means the slope of JE would be the same as the slope of BY. So in this case the answer should be B. -1/5.

I hope this helped.
parallel lines have the same slope, so the answer is -1/5

It takes 636363 minutes for 444 people to paint 999 walls. how many minutes does it take 777 people to paint 444 walls? minutes

Answers

Let t=time, p=people, and w=walls.

We know that the time it takes is directly proportional to the length of the wall but inversely proportional to the number of people working. That is 
     [tex]t=k\cdot \frac{w}{p}[/tex]

We solve for the constant of proportionality, k.
     [tex]k=\frac{t\cdot p}{w}[/tex]

The initial values for k are the same for the final values. That is
     [tex]\frac{t_1\cdot p_1}{w_1}=\frac{t_2\cdot p_2}{w_2}[/tex]

     [tex]\frac{63\cdot 4}{9}=\frac{t_2\cdot 7}{4}[/tex]

     [tex]t_2=\frac{4\cdot 63\cdot 4}{7\cdot 9}=16[/tex]

It will take 16 minutes.      

    

Isabel deposits $6,000 into an account that earns 1.5% interest compounded monthly. Assuming no more deposits and no withdrawals are made, how much money is in the account after 4 years? Compound interest formula:mc002-1.jpg t = years since initial deposit n = number of times compounded per year r = annual interest rate (as a decimal) P = initial (principal) investment V(t) = value of investment after t years

Answers

After 4 years, with an initial deposit of $6,000 at a 1.5% annual interest rate compounded monthly, Isabel will have approximately $6,370.07 in her account.

Calculating Compound Interest

To calculate the amount of money Isabel will have in her account after 4 years with an initial deposit of $6,000 at an annual interest rate of 1.5% compounded monthly, we can use the compound interest formula:

V(t) = P(1 + r/n)nt

P = principal amount (initial investment) = $6,000

r = annual interest rate (as a decimal) = 0.015

n = number of times the interest is compounded per year = 12

t = number of years the money is invested or borrowed for = 4

Substituting these values into the formula, we get:

V(4) = $6,000(1 + 0.015/12)12(4)

This simplifies to:

V(4) = $6,000(1 + 0.00125)48

Calculating the value inside the parentheses first:

1 + 0.00125 = 1.00125

Then raising it to the 48th power gives us:

1.0012548 ≈ 1.061678

Multiplying this by the principal:

V(4) ≈ $6,000 × 1.061678 ≈ $6,370.07

After 4 years, Isabel's account will have approximately $6,370.07.

Answer:$6,370.07

Step-by-step explanation:

The base of a triangular prism is a right triangle with hypotenuse 10 m long and one leg 6 M. If the height of the prism is 12 M, what is the volume of the prism

Answers

Comment
Use a^2 + b^2 = c^2
Then find the volume.

Step One
a^2 + b^2 = c^2
c = 10
b = 6

Find a
a^2 + b^2 = c^2
a^2 + 6^2 = 10^2
a^2 + 36 = 100
a^2 = 100 - 36
a^2 = 64
a = sqrt(64)
a = 8

Step Two
Find the volume
a = 8
b = 6
h = 12

V = 1/2 * a * b * h
V = 1/2 * 8 * 6 * 12
V = 288 m^3 <<<<<<< answer

divide and simplify completely. 8x-8/x^2-1 * x + 1 / 6x^2 - 12x / 24 / x^2 - 4
A 32 / x(x + 2)(x - 2)^2
B x + 2 / 18x
C 32(x + 1) / x(x + 2)(x - 2)^2
D (x + 2)(x + 1) / 18x(x - 1)

Answers

I did the math and nothing came up to these answers. but I got closes to C that might no mean its necessary right but go back and make sure you put it all down correctly

A students is taking a 5-question
a. True
b. False quiz and guesses at each question. find the probability that the student will get all questions correct. find the probability that the student will get no questions correct.

Answers

b
Oh no! Something went wrong while adding your answer
It's too short. Write at least 20 characters to explain it well.

PLEASE HELP. evaluate the radical 3√1000

Answers

3√1000 = 3*31.623 = 94.87

We can also do this by doing √9000 which is also 94.87

I need help! Math question

Answers

Again, a spreadsheet or suitable calculator makes this short work.

The sum is 184.

_____
The terms being summed are ...
  2·3² +3 = 2·9 +3 = 18 +3 = 21
  2·4² +3 = 35
  2·5² +3 = 53
  2·6² +3 = 75
Their total is
  21 +35 +53 +75 = 184

You want to determine the height of the screen at a drive-in movie theater. You use a cardboard square to line up the top and bottom of the screen structure. The vertical distance from the ground to your eye is 5.7 feet and the horizontal distance from you to the screen is 11 ft. The bottom of the screen is 6 feet from the ground. Approximate the height of the screen to the nearest tenth.



The height of the screen is about_______ feet

Answers

Final answer:

The height of the drive-in movie theater screen can be determined using proportions and similar triangles. The total height of the screen is found to be 11.7 feet.

Explanation:

To find the height of the screen, you'll need to use similar triangles, as the triangle formed by your line of sight to the top and bottom of the screen is similar to the triangle formed by the screen and the ground. The proportion of the vertical distance from your eye to the ground and the horizontal distance from you to the screen is equal to the proportion of the height of the screen and the horizontal distance from you to the screen. Hence, you can calculate the height of the screen using a cross-multiplication.

So, we have the equation: 5.7/11 = h/11, where h is the height of the screen from your eye level. Solving this gives us h=5.7 feet. Thus, the total height of the screen is the height from the ground to your eye level plus the height of the screen from your eye level. So, the total height = 5.7 feet + 6 feet = 11.7 feet.

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The real number 8.09 belongs to which set of numbers??


A-natural numbers


B-integers


C-irrational numbers


D-rational numbers


Answers

Hi! I believe it's D. rational numbers

Hope this helps!
Answer is: D - rational numbers

8.09 can be rewritten as 8 9/100, which in turn can be rewritten as 809/100. This is the ratio of two integers. So, 8.09 is rational.

What is the interquartile range of this data? 6 7 8 9 Box-and whisker plot titled Temperatures in Celsius ranging from 12 to 48 with the five number summary from left to right 18, 25, 28, 33, and 42

Answers

Your answer would be 8
Hope this helps!

What is the interquartile range of this data? 6 7 8 9 Box-and whisker plot titled Temperatures in Celsius ranging from 12 to 48 with the five number summary from left to right 18, 25, 28, 33, and 42

Solution:

The problem is not clear.

But, considering data set is:

18,25,28,33,42

So, if we consider the data set, Interquartile Range is the difference of Quartile3-Quartile1

IQR=Q3-Q1

To find, Q1 and Q3. Let us find the median, or, Q2 first.

Median is the middle term of the data set.

So, Median, Q2=28

Q1 is the median of first half of the data set. That is, 18,25,28

So, Lower Quartile, Q1=25

Q3 is the median of second half of data set. That is, 28, 33,42

So, Upper Quartile, Q3=33

IQR=Q3-Q1

=33-25=8

Answer: IQR=8

If we consider data set: 6,7,8,9

Median, Q2=[tex] \frac{(7+8)}{2}=\frac{15}{2} [/tex]=7.5

Lower Quartile, Q1=6.25

Upper Quartile, Q2=8.75

IQR=Q3-Q1=8.75-6.25=2.5

IQR=2.5

Which of the following is equivalent to C(16, 4)?

answer choices:
12!
C(16, 12)
C(15, 3)

Answers

the answer to this question is C (16,12)

Answer- C(16,12)


C(n,r) = n! / r!* (n-r)!

So,

C(16,4) = 16!/ 4! * 12!

C(16,12) = !6!/ 12! * 4!


14. the number of deer spotted in a nature preserve each day over a two week period is listed below. 32 27 15 12 42 35 46 29 38 18 40 38 32 34

which frequency table represents the data ?

A. deer
10-19
20-29
30-39
40-49
frequency
3
3
5
4

B. Deer
10-19
20-29
30-39
40-49

frequency
3
2
5
4

c. deer
10-19
20-29
30-39
40-49

frequency
4
1
7
2

d. deer
10-19
20-29
30-39
40-49

frequency
3
2
6
3

Answers

The answer is D: 10-19, 20-29, 30-39, 40-49: Frequency 3, 2, 6, 3.
Simply put, The frequency of a particular data value is the number of times the data value occurs. A frequency table is constructed by arranging collected data values in ascending order of magnitude with their corresponding frequencies. I hope this helps with answering any further questions. Good luck!

Using Frequency table, Option: (d) is correct.

What is Frequency?

Frequency refers to "the number of times an event or values occurs".

According to the question,

The number of deer spotted in preserve is

32,27,15,1,42,35,46,29,38,18,40,38,32,34

The number deer appear in the interval 10 - 19 is 3

The number deer appear in the interval 20 - 29 is 2

The number deer appear in the interval 30 - 39 is 6

The number deer appear in the interval 40 - 49 is 3

From the above data, we can form frequency table

Deer                  10 - 19          20 - 29     30 - 39         40 - 49

Frequency           3                    2              6                    3

Hence, the answer is Option: (d)

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Emma enjoys flying kites. her red kite has a maximum altitude of 117.46 meters, and her black kite has a maximum altitude of 362.26 feet. one foot is the same as 0.3048 meters. which kite has a higher maximum altitude, and how many feet higher is it?

Answers

1) let's convert the maximum altitude of the black kite from feet to meters. We can do it by using the following proportion:
[tex]1 ft : 0.3048 m = 362.26 ft : x[/tex]
From which we find
[tex]x=110.42 m[/tex]
This is the maximum altitude (in meters) of the black kite. The problem says that the maximum altitude of the red kite is 117.46 m, therefore the red kite is the one with higher maximum altitude.

2) Let's convert the maximum altitude of the red kite from meters to feet, again by using the proportion:
[tex]1 ft : 0.3048 m = x : 117.46 m[/tex]
From which we find
[tex]x=385.37 ft[/tex]
Therefore, the maximum altitude of the red kite in feet is 385.37 ft.

Answer:

Red kite has maximum altitude with 23.1 feet higher.

Step-by-step explanation:

Given : Emma enjoys flying kites. her red kite has a maximum altitude of 117.46 meters, and her black kite has a maximum altitude of 362.26 feet.

one foot is the same as 0.3048 meters.

To find : Which kite has a higher maximum altitude, and how many feet higher is it?

Solution :

First we have to convert meter into feet.

We have given, 1 feet = 0.3048 meters.

[tex]1 \text{ meter }=\frac{1}{0.3048} \text{ feet}[/tex]

So, red kite has a maximum altitude of 117.46 meters

In feet, red kite has a maximum altitude of

[tex]117.46\text{ meter }=\frac{117.46}{0.3048}=385.36 \text{ feet}[/tex]

Now, Red kite has a maximum altitude of 385.36 feet

Black kite has a maximum altitude of 362.26 feet.

385.36>362.26 feet.

Difference is 385.36-362.26=23.1 ft.

Therefore, Red kite has maximum altitude with 23.1 feet higher.

What are the period and amplitude of the function?
A) period 3, amplitude 1.5
B) period 3, amplitude 3
C) period 4, amplitude 1.5
D) period 4, amplitude 3

Answers

period 3, amplitude 1.5

Answer:

Option: A is the correct answer.

      A)  Period: 3 , amplitude : 1.5

Step-by-step explanation:

We know that Period of a function is the smallest value such that the function repeats after a fixed time.

and also the amplitude of the function is the height above or below the mid-line.

After looking at the graph we see that the period of the function is: 3

Since the function is repeating itself after every x=3.

Also, the mid-line of the function is: y= -0.5.

Hence, the height above the mid-line is: 1+0.5 = 1.5

        Hence, amplitude= 1.5

42) According to the 2000 Census the population of Canton was 7,720. Holly Spring's population was 3,200. Canton's population increases at a rate of 80 people a year and Holly Spring's population increases by 120 people a year. Which equation may be used to determine the number of years before the populations are equal?

Answers

Let's construct an equation for Canton's population increase as 7220+80n and Holly Spring's population increase with 3200+120n, where n is the number of years. We have to set these equations to each other in order to find when the population of these two places are equal. 3200+120n=7220+80n and n=100.5. After 100 and half years

Mr. Hart is hanging a picture on a wall. the picture frame has a length of 13 inches and a width of 9 inches. how much wall space will the picture need?

Answers

I believe what we are looking for is area. If so the formula for area of a rectangle is area equals width times length
A=wl

So:

9*13=117

The area would be 117, the amount of wall space needed is 117.

Hope this helps:)

To determine the wall space needed for Mr. Hart's picture, calculate the area of the rectangle formed by the picture's dimensions: length (13 inches) times width (9 inches), resulting in 117 square inches of wall space.

The student's question about Mr. Hart hanging a picture on a wall involves calculating the wall space the picture will occupy. This is essentially a question about finding the area of a rectangle. To find the area, one must multiply the length by the width of the rectangle. In this case, the length of the picture frame is 13 inches and the width is 9 inches. The calculation will be:

Area = Length × Width

Area = 13 inches × 9 inches

Area = 117 square inches

Therefore, the picture will need 117 square inches of wall space.

The perimeter of the rectangle below is 90 units. find the length of side vy . write your answer without variables.

Answers

the picture in the attached figure

we know that
perimeter of a rectangle=2*[base+height]
base=3y+1
height=2y+3
perimeter=90 units
so
90=2*[(3y+1)+(2y+3)]-----> 90=2*[5y+4]----> 10y+8=90----> y=8.2 units

base=3y+1-----> base=3*8.2+1-----> 25.6 units
height=2y+3----> height= 2*8.2+3---> 19.4 units 

the answer is
the length of side vy is (2y+3)-----> 19.4 units

the length of side VY is equal to the height, which is 19.4 units. The formula for the perimeter of a rectangle is given as `2 * (base + height)`.

It's correctly stated that the base of the rectangle is `3y + 1`, and the height is `2y + 3`. The perimeter is given as `90 units`.

To find the dimensions, we set up an equation using the formula for the perimeter:

  90 = 2 * [(3y + 1) + (2y + 3)]

  This equation represents that the perimeter is equal to twice the sum of the base and height.

The equation is then simplified:

  90 = 2 * [5y + 4]

  By dividing both sides by 2, it becomes:

  5y + 4 = 45

  Solving for y:

  5y = 45 - 4

  5y = 41

  y = 41 / 5

  y = 8.2 units

  So, the value of y is correctly determined as 8.2 units.

With the value of y known, the base and height expressions are evaluated:

  Base: `3y + 1 = 3 * 8.2 + 1 = 24.6 + 1 = 25.6 units`

  Height: `2y + 3 = 2 * 8.2 + 3 = 16.4 + 3 = 19.4 units`

The dimensions of the rectangle are correctly calculated as follows:

  Base: 25.6 units

  Height: 19.4 units

  It's also mentioned that the length of side VY is equal to the height, which is 19.4 units.

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Demarco wants to find the angle measures of this parallelogram. He knows that the first step is to find the value of x. Which of these equations will result in the correct value of x?

A. x + 15 = 6x + 4

B. 7x − 19 + 2x − 8 = 180

C. 7x − 19 = x + 15

D. 6x + 4 + 7x − 19 = 180

Answers

The answer is B. You had to check the work in the calculator after you showed the work. Two answers gave you whole numbers , then when you plug it in only one of them solved to 180 correctly

Answer:

B

Step-by-step explanation:

imagine math

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What is the sum of the polynomials?

A. 10x^2 - 9

B. 11x^2 - x - 9

C. 11x^2 + x - 1

D. 12x^2 - 1

Answers

C is the correct answer

How do I solved this question. 1/3c=3/8;c=3/4

Answers

1/3c = 3/8
multiply both sides by 3:-
c = 3*3/8 = 9/8

c = 9/8   or 1 1/8

You’re baking a circular cake for a party. Your cake can be any size you want. What will the radius of your cake be and how many slices will you be able to cut?

Answers

What will the radius of your cake be?

This is a problem of geometry. Given that the cake is circular, the greater the cake the greater the radius of it. So, as shown in the figure 1, the radius will be the distance from the center to any extreme point of the circle.

How many slices will you be able to cut?

The total area of a circle is given by:

[tex]A= \pi r^{2}[/tex]

We need to fin how many slices will be cut, so let's calculate the area of the circular sector which can be obtained simply applying rule of three, so:

[tex]A_{cs}= \pi r^{2}( \frac{\theta}{2\pi})= \frac{r^{2}\theta}{2}[/tex]

Let's name n the number of slices, if we divide the total area by n this result, each area  must equal, then:

[tex] \frac{\pi r^{2}}{n}=\frac{r^{2}\theta}{n}[/tex]

Finally, we will be able to cut:

[tex]n= \frac{2\pi}{\theta}[/tex] Slices
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