So basically, we have [-83, -77] as the whole thing.
There's a circle that limits [-83, -79) as a shaded zone.
Vera claims that -78.9999 [tex]\geq[/tex] X, which is false.
Vera wrote a relation symbol that doesn't represent the ray's direction. She went the other way around.
PLEASE HELPPPP
For each of the relation sets below, determine the domain and range, along with
whether or not the set represents a function. If the relation set is not a function, explain
why.
a. {(0,9), (8, 1), (-1, 9), (9, 8), (1, -1)}
b. {(62, -3.1), (61, -3.1), (60, -3.1), (-3.1, -3.1)}
c. {(123,876), (-15, 2.6), (2.6, -15), (123, 1), (-87, -0.98)}
d. {(2.9, 0), (2.9, 1), (2.9, 2), (2.9, 3)}
Answer: See in the explanation
Step-by-step explanation:
The domain is all of the X values in a set.
The range is all of the Y values in a set.
You can tell if a set of coordinate pairs is a function if each x value corresponds to 1 Y value. For example, lets say we have an x value of 3. This X value can only correspond to ONE y value. So if the x value 3 corresponded to , e.g, 4, or 7 as y values, it would not be a function because 1 x value has to have only 1 y value.
a. {(0,9), (8, 1), (-1, 9), (9, 8), (1, -1)}
* This relation is a function, because there aren't many of the same x value numbers.
* The domain is {0, 8, -1, 9, 1}. Those are all of the X values
* The range is {9, 1, 9, 8, -1} (All of the Y values)
b. {(62, -3.1), (61, -3.1), (60, -3.1), (-3.1, -3.1)}
* This relation is a function, because even though all of the y values are the same , the x values are different.
* The domain is {62, 61, 60, -3.1}.
* The range is {-3.1, -3.1, -3.1, -3.1}
c. {(123,876), (-15, 2.6), (2.6, -15), (123, 1), (-87, -0.98)}
* This relation is a function, because all of the X values are different
* The domain is {123,876, -15, 2.6, 123, -87}
* The range is {0, 2.6, -15, 1, -0.98}
d. {(2.9, 0), (2.9, 1), (2.9, 2), (2.9, 3)}
* This relation is not a function. All of the x values are the same, and for this reason, they all have different y values.
* The domain is {2.9, 2.9, 2.9, 2.9}
* The range is {0, 1, 2, 3}
Hope this helps :)) Brainliest would be appreciated :D
The Empire State Building is just over 1,450 feet tall. In anticipation of visiting this landmark on your vacation, you create a model of it using blocks.
a) Suppose you are making a model where one block represents 2 feet. About how many blocks tall is your model of the Empire State Building? What is the scale factor?
Answer:
365 and 1/2 blocks will be used
The scale fact is 0.25
Step-by-step explanation:
So . .
We create a ratio 1:2This represents 1 block is equivalent to 2 feet
Simply 1450 ÷ 2 = 725So . . There are 725 feet and because One block is equal to 2 feet you divide 725 ÷ 2 = 362.5 blocks will be used
To find the scale factor simply divide the deminsions of the new shape by old
362.5 ÷ 1450 = .25There is an equal number of 2 brands of watches on a shelf. Brand at watches cost $58 each, and Brand B watches cost $30 each. If the total cost of all the watches on the shelf is $22,000, how many watches are there?
Answer: There are 227 watches.
Step-by-step explanation:
What I did was that, I added the cost of watch A and B and then divided the sum by $22,000
5
What is the area of a triangle with a base of 25 mm and a height of 10 mm?
001
© 6-mm
4
O
13 mm
O
o 264 mm?
3
O 16 mm
Answer:
125mmStep-by-step explanation:
Formula for finding area of a triangle:
[tex]A = \frac{1}{2} *B*H[/tex]
A = Area
B = Base
H = Height
Find the answer using the formula:
[tex]A = \frac{1}{2} *25*10\\=\frac{1}{2} *250\\=125[/tex]
Hence, the area of that triangle is
125mm(not sure why this is not one of the choices, but this is the RIGHT answer)
How do you find the area of a hexagon?
(You can use any hexagon. It's too confusing for me.)
Step-by-step explanation:
To the find the area of regular hexagon,
the foumula that is used is, (3√3 s2)/2
[tex]3 \sqrt{3} \: s 2 \div 2 \\ [/tex]
here, s is the measure of one side of the hexagon
(one side because, all sides are equal in a regular hexagon)
hope it helps!!!
PLEASE MARK BRAINLIEST ♡
500 people are asked to name their favorite color. The results of this survey are shown in the pie chart below:
Each sector of the pie chart makes an angle at the center. For example, the yellow sector makes an 18 degree angle, since 18 degrees is 5% of 360 degrees.
If we consider only the people who named a rainbow color (red, orange, yellow, green, blue, or purple), what percentage of those people preferred red?
Answer:
20%
Step-by-step explanation:
Method 1
Percentage of people who preferred red:
= 13%
Percentage of people who named a rainbow color:
= 13 % + 4% + 5% + 15% + 16% + 12%
= 65%
Percentage of people who preferred red from those who named a rainbow color:
= (13% ÷ 65%) × 100
= 20%
Method 2
Number of people who preferred red:
= 13% of 500
= 13% × 500
= 0.13 × 500
= 65
Percentage of people who named a rainbow color:
= 13 % + 4% + 5% + 15% + 16% + 12%
= 65%
Number of people who named a rainbow color:
= 65% of 500
= 65% × 500
= 0.65 × 500
= 325
Percentage of people who preferred red from those who named a rainbow color:
= (number who preferred red ÷ number named rainbow color) × 100
= (65 ÷ 325) × 100
= 20%
Pls Brainliest!
Answer:
20%
Step-by-step explanation:
The rainbow colors add up to 13 + 4 + 5 + 15 + 16 + 12 = 65 percent of the pie chart. So, 65% ∙ 500 = 325 people in the survey named a rainbow color. Of these, 13% ∙ 500 = 65 named red.
Therefore, if we consider only the 325 people who named a rainbow color, the percentage of those people who preferred red is
65/325 = 1/5 = 20%
(You may notice that the answer would still be 20% even if the total number of people in the survey were some number other than 500. This is because 13% is 20% of 65%, no matter what these are percentages of!)
Dimitri is putting away his toy cars in a container. Each of his cars weighs 1.25 ounces. Dimitri has 50 toy cars. If the container can hold up to 60 ounces without breaking, will the container hold all the cars without breaking?
Yes; they weigh 50.5 ounces.
No; they weigh 61.25 ounces.
Yes; they weigh 51.25 ounces.
No; they weigh 62.5 ounces.
ANSWER ASAP PLSS!!!!!
Answer:
No
Step-by-step explanation:
If you multiply 1.25(50) is 62.5
and 62.5 is larger than 60
so,
:• No; they weigh 62.5 ounces
Answer: D
Step-by-step explanation:
Facts
each car ways 1.25 ounces
he has 50 cars
his container can hold 60 ounces
The question: Will the container hold all the cars without going over 60 ounces?
Step 1: Find the total number of ounces for all 50 cars
1.25 x 50= 62.5
Step 2: Compare
62.5 > 60
Because 62.5 is greater than 60, all of the cars CANNOT fit.
Ans= D
Hope this helps :)) Brainliest would be appreciated :D
calculate the volume of the following figure
Answer:
24 units³
Step-by-step explanation:
Formula:
Volume (V) = length (l) × width (w) × height (h)
V=3×4×2=24 units³
Answer:
the answer should be 24 units^3 because the formula for finding volume is V= lwh so we need to multiply 2 times 3 and 4 and when we do that we get an answer of 24 so a is the correct answer and have a great day.
Step-by-step explanation:
1. What is the probability of spinning a multiple of 2 and flipping heads?
2 1/3 x 3 equals a whole number. How do you multiply and simplify it?
whats the answer
i dont know this
Answer:
9.2
Step-by-step explanation:
a^2 + b^2 = c^2 (pythogoras theorem)
7^2 + 6^2 = 85
Square root of 85 = 9.2 ( nearest tenth)
I think this is right if not srry :(
What is the area, in square meters, of the trapezoid below?
Answer: 94.54 m^2 (square meters)
Step-by-step explanation: The formula for the area of a trapezoid is A = 1/2(a+b)h; where a and b are the two top sides of the trapezoid that are parallel. Let us then solve.
Let us combine both sides two maintain the overall side for "b", which is 18 + 5.1 = 23.1
Let us now add both sides (a + b.) 23.1 + 9.5 is 32.6. We can now multiply by the height. 32.6 multiplied by 5.8 is 189.08
We can now divide (or multiply by 1/2), which is 189.08 * 1/2 or 189.08/2 and that equals 94.54.
Step 1
Find the area of the Rectangle in the middle
To find the area, you have to do [tex]Length*Width[/tex]
[tex]9.5*5.8=55.1[/tex]
The area of the Rectangle in the middle is 55.1m²
Step 2
Find the area of the triangle on the right
To find the area of 1 triangle, we have to use the formula show below:
[tex]A=\frac{1}{2}* Base *Height[/tex]
Base = the part on the bottom
Height = How high the triangle is
[tex]A=\frac{1}{2} *5.1*5.8\\=\frac{1}{2} *29.58\\=14.79[/tex]
The area of the triangle on the right is 14.79m²
Step 3
Find the area of the triangle on the left
Using the formula that we used in the last question about finding the area of the triangle, we can find our answer, here is the formula:
[tex]A=\frac{1}{2}* Base *Height[/tex]
Base = the part on the bottom
Height = How high the triangle is
BUT, before finding the area of this part of the triangle, we have to first find the dimensions, we know the height, but we don't know the base, so to find the base, we will subtract 18 by 9.5 to get our base
[tex]18-9.5=8.5[/tex]
So the base of the triangle on the LEFT is 8.5m
NOW, we can find the area of the triangle on the left
[tex]A =\frac{1}{2}* 8.5*5.8\\=\frac{1}{2} *49.3\\=24.65[/tex]
So the area of the triangle on the LEFT is 24.65m²
Step 4
Add up all the areas to get final answer!
The areas of the 3 shapes are...
55.1m²
14.79m²
24.65m²
If we add these numbers up, we get 94.54m²The area of the trapezoid is 94.54m²
1. Interpret a Solution What does the area of the parallelogram represent? Explain.
heeelellllllllppppppppp
idc what your answer is. as long as it is related to the problem and makes sense, its based off of your opinion. (2 attachments, 4 problems)
Answer:B
Step-by-step explanation:
Please please help! worth lot of points! Will give brainly if you anser both quetions! need this done ASAP!
1. What is the missing value in the ratio table?
7.2
1.2
10.8
6
2. What is the balance point of the data set?
4
6
9
36
Answer:
I Only know the first answer and it's 7.2
Step-by-step explanation:
when we look at the ratio table we see that for every 1x our y goes up 1.2
So, 2.4, 3.6, 4.8, 6.0, 7.2
7.2 is your answer.
Answer:
1. What is the missing value in the ratio table?
7.2
1.2
10.8
6
Step-by-step explanation:
Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. Kevin spins the spinner 180 times. Kevin determines about how many times the spinner will land on red or green, and his work is shown below.
P (red or green) = Number of red or green sections
-------------------------------------------------- x number of spins =
Total number of sections
2
------- (180) = 36
10
What mistake did Kevin make, if any?
A. Kevin has the formula reversed; it should be the total number of sections over
the number of red or green sections.
B. Kevin should have used a 4 in the numerator because there are 2 red sections
and 2 green sections.
C. Kevin should multiply by the number of sections in the spinner rather than the
total number of spins.
D. Kevin calculated the prediction correctly and did not make any mistakes.
Which answer best describes the shape of this distribution?
A. bell-shaped
B. uniform
C. skewed right
D. skewed left
Answer:
B) Uniform
As it is identical if you split it in half
Identity the correct weight to the nearest 1/8 pound,then reduce the fraction if possible,which of the following would a scale be used to measure
Answer:for the 3rd ques the answer is number 2
Step-by-step explanation:
Will give brainiest!! check all of these and help on the ones I haven't done Domain and Range pretty easy.
Answer:
functions domain and range
Step-by-step explanation:
well when given a function as based by the graphs given if present with a line that passes the vertical and horizontal line test without touching the same two problems it will always be a function like 32. it would be for range would be y is greater than or equal to 1 and domain being 0 ≤ x ≥ 3
hope this helps and if I'm incorrect I apologize I haven't done this in like 2 years
Carmen made punch with 34 gallon of orange juice, 2 quarts of strawberries, and 2 pints of lime sherbet. How many pints of punch did Carmen make? Use the diagram to help you solve. Explain.
PLEASE HELP ME PLEASE I WILL GIVE BRAINLIEST
Answer:
19.98
Step-by-step explanation:
A researcher weighed pumpkins grown across a certain region. The data are rounded to the nearest pound and displayed in this histogram.
What does the second bin represent?
Select from the drop-down menu to correctly complete the statement.
Sixteen pumpkins weigh
more than 2.4 pounds but no more than 4.8 pounds
more than 2.4 pounds but no less than 4.8 pounds
at least 2.4 pounds but no more than 4.8 pounds
at least 2.4 pounds but less than 4.8 pounds
Deli ham was on sale for $3.29 per pound. Maria's order weighed 1.2 pounds. To the nearest penny, what will Maria’s ham cost?
Please help
Answer:
365
Step-by-step explanation:
Pls help
How do u find the area of this figure
Answer:
The answer is 52 in²
Step-by-step explanation:
You can't find the area of it all at once so you must cut it in have to have two shapes like in the picture above and then name them A and B
Now for the shapes we must use the formula Area= Lentgh times Breath
Shape A: A= L x B
8 x 6 = 48 in²
Shape B : A= L x B
2 x 2= 4 in²
now add 48 plus 4 = 52 in²
Hope this helps!
I need help on this please!
Answer:
2.15 or 2
Step-by-step explanation:
what is the measure of ∠x
Step-by-step explanation:
Here x and 80° are supplementary angle so...
x + 80° = 180°
x = 180° - 80°
x = 100°
4. Find the vertex, focus, and directrix of the parabola. Sketch its graph, showing the focus and the directrix.
x^{2}=-3 y
Answer:
vertex - (0,0)
focus - (0, 3/4)
directrix - 3/4
parabola- x^2=-3y
graph of equation:
Convert 0.ModifyingAbove 393 with bar into a fraction. 1. Assign a decimal to a variable: x = 0.ModifyingAbove 393 with bar. 2. It has 3 repeating digits. Multiply by 10 Superscript 3: (1000) x = 0.ModifyingAbove 393 with bar (1000). 1000 x = 393.ModifyingAbove 393 with bar. minus (x = 0.Modifyingabove 393 with bar). 999 x = 393. 1. Solve for x: x = question mark. Solve for the value of x: What is x = 0.ModifyingAbove 393 with bar as a fraction?
x =
ANSWER; x = 131/333
Answer:
[tex]x=\dfrac{131}{333}[/tex]
Step-by-step explanation:
Assign the decimal to a variable:
Let [tex]x=0.\overline{393}[/tex]
Multiply both sides by 1000:
[tex]\implies x \cdot 1000=0.\overline{393} \cdot 1000[/tex]
[tex]\implies 1000x=393.\overline{393}[/tex]
Subtract the first equation from the second to eliminate the part after the decimal:
[tex]\begin{array}{r r c r}& 1000x & = & 393.\overline{393} \\\\- & x & = & 0.\overline{393} \\\\\cline{2-4} \\& 999x & = & 393 \\\end{array}[/tex]
Divide both sides by 999:
[tex]\implies \dfrac{999x}{999}=\dfrac{393}{999}[/tex]
[tex]\implies x=\dfrac{393}{999}[/tex]
Reduce the fraction:
[tex]\implies x=\dfrac{393 \div 3}{999 \div 3}[/tex]
[tex]\implies x=\dfrac{131}{333}[/tex]
The government owns the radio and television in the country. All the newspapers have to get
permission from the government to publish any news about government’s policies and protests.
Would you call it a democracy? Yes /No. Give reasons to support your decision.
