Answer:
[tex] \displaystyle A _{ \text{vinyl record }} \approx 490 {cm}^{2} [/tex]
Step-by-step explanation:
we are given the circumstances of a vinyl record
we want to figure out the area
in order to do so we should figure out redious first
recall that,
[tex] \displaystyle \rm C = 2\pi r[/tex]
given that, C=78.5
thus substitute:
[tex] \displaystyle \rm 78.5= 2\pi r[/tex]
divide both sides by 2π:
[tex] \displaystyle r = \frac{78.5}{2\pi} [/tex]
we have figured out r now we'll figure out the area
remember that,
[tex] \displaystyle A _{ \text{circle}} = \pi {r}^{2} [/tex]
substitute the value of r
[tex] \displaystyle A _{ \text{vinyl record }} = \pi { \bigg(\frac{78 .5}{2\pi} \bigg)}^{2} [/tex]
by using calculator we acquire
[tex] \displaystyle A _{ \text{vinyl record }} = 490 {cm}^{2} [/tex]
jill has not yet studied the angle measurement requirements to form a triangle. She begins to draw side AB as a horizontal segment of ABC and considers the following angle measurements for A and B Describe the nonhorizontal rays in the drawing that results from each set
Answer:
a. 45° and 135
The non-horizontal rays of ∠ and ∠ will not intersect to form a triangle; the rays will be parallel to each other.
b. 45° and 45°
The non-horizontal rays of ∠ and ∠ will intersect to form a triangle
c. 45° and 145°
The non-horizontal rays of ∠ and ∠ will not intersect to form a triangle.
Step-by-step explanation:
Hope this helps
my grades not looking to well if you guys can help me with some problems i will give points and brainliest i need this problem and a few more done
Answer:
8 unitsStep-by-step explanation:
Parallel lines cut the transversals into proportional segments:
ST / UT = SR / QRST / 16 = 18/ 36ST / 16 = 1/2ST = 16/2ST = 8ST be x
Apply Thales theorem
x/16=18/36=1/2x=16/2ST=8unitw*LOOK AT PICTURE*
A) y = 2x - 3
B) y = 2x + 3
C) y = x + 3
D) y = 4 - 2x
Answer:
B) y=2x+3
Step-by-step explanation:
2x+3 2 is the slope it goes up two over one 2/1 or 2 and +3 is where the line intersects the y axis ( -3 would mean that the line intersected at -3 )
algebra 1 chapter 10
Answer:
wheres the question ?
Step-by-step explanation:
NEEEDDD HELLPPPP PLEASSSSSSSSSE
Ms.wong is redecorating her office. She has choices of 5 colours of carpet and 3 styles of furniture.How many possible ways can she choose a colour of carpet and style of furniture
Answer:
15
Step-by-step explanation:
5 colors x 3 furniture = 15
find the values of x and y
(no links or report don’t answer if u don’t know )
what is the mode of the following set of numbers (3,5,8,3,9,7,6,3)?
Answer:
the answer is 3
Step-by-step explanation:
because it shows that number more than once
Please help me this could help my grade in math!!! I will mark!
Answer:
I believe it is three
Step-by-step explanation:
Good luck!
Answer:
It is 3! I am 100% sure!
Step-by-step explanation:
Marking brainliest
Can you give me an example on why it’s not foolish to fear ?
Answer:
It is not foolish to fear—it is a matter of survival. The physical responses we have to objects or situations that we fear are often grouped together and characterized as a “fight or flight” instinct. Something alarms you, and instantly your brain causes a number of chemicals to be released into your bloodstream.
Answer:
Fear is already a part of human nature. In fact, fear is used as a defense mechanism of our ancestors long time ago. They used to live on caves, jungles, and not so sturdy shelters that would make them vulnerable enough to different predators. Thus having the feeling of fear saves them by backing down and to retreat unto safer places. Therefore I can say that it's not foolish to fear since it's already a part of us human beings. Even the bravest persons in the world have their own fears too. We can't just separate it from ourselves and let's just embrace it and try to do something to lessen it.
(this is just my opinion)
Find the volume of the following
square pyramid.
26 cm
20 cm
20 cm
V = [?] cm3
Enter
Answer: 3200
Step-by-step explanation:
please help! ASAP, no bots.
Answer:
perfect square (4x - 3)^2
Step-by-step explanation:
find the image of B(4,7) reflected in the y-axis
find the next three terms of the arithmetic sequence 39 50 61 72
Answer:
83, 94, 105Step-by-step explanation:
d = 50 - 39 = 11
Therefore:
the 5th: 72 + 11 = 83
the 6th: 83 + 11 = 94
the 7th: 94 + 11 = 105
Find two numbers that meet the requirements of the situation in each question. Put the smaller of the two numbers in the first blank and the larger of the two numbers in the second blank.
Multiply to give you 24 and add to give you -10.
Answer:
-6, -4
Step-by-step explanation:
-6 x -4 = 24
-6 + -4 = -10
Answer:
-6 and -4
Step-by-step explanation:
two negs multiplied =positive
two negs added = negative
EASY- Han has to build the figure below, which will serve as a counterweight, for his robotics project. Find the VOLUME of the finished object assuming it is empty inside.
Given:
A combined figure of a triangular prism and a cuboid.
To find:
The volume of the finished object assuming it is empty inside.
Solution:
From the given figure it is clear that the dimensions of the cuboid are 6 cm, 8 cm and 5 cm.
So, the volume of the cuboid is:
[tex]V_1=length\times width\times height[/tex]
[tex]V_1=6\times 8\times 5[/tex]
[tex]V_1=240[/tex]
The volume of the cuboid is 240 cubic cm.
The area of a triangle is:
[tex]Area=\dfrac{1}{2}\times base\times height[/tex]
Thus, the base area of the triangular prism whose base is 8 cm and height 4 cm, is:
[tex]B=\dfrac{1}{2}\times 8\times 4[/tex]
[tex]B=16[/tex]
The volume of a triangular prism is:
[tex]V_2=Bh[/tex]
Where, B is the base area and h is the height of the prism.
The base area of the triangular prism is 16 square cm and the height is 5 cm. So, the volume of a triangular prism is:
[tex]V_2=16(5)[/tex]
[tex]V_2=80[/tex]
Now, the volume of the given figure is:
[tex]V=V_1+V_2[/tex]
[tex]V=240+80[/tex]
[tex]V=320[/tex]
Hence, the volume of the finished object is 320 cubic cm.
What equation has the solution to x=2
A. 2x-3=19
B. 3x+2=8
C. 4x-4= -4
D. 5x +1=10
Marking brainliest , help pls
Answer:
the answer is c) 5,2 hope this helped
Answer:
(5,2)
Step-by-step explanation:
its the only one in the purple
The ratio of dye to pounds of clothing is constant. A worker develops the chart below to show the amount of dye needed
for different amounts of clothing.
Clothes Dyeing
Weight of clothing Cups of dye
(pounds)
21
3
42
9
84
12
105
15
For which weight of clothing is the ratio of weight to dye different from the other ratios?
21 pounds
42 pounds
84 pounds
105 pounds
Answer: The answer is 42
Step-by-step explanation:
I did the test too :)
The weight of clothing for which the ratio of weight to dye is different from the other ratios is 42 pounds.
To determine which weight of clothing has a ratio of weight to dye different from the other ratios, we need to compare the ratios for each weight.
Let's calculate the ratios for each weight of clothing by dividing the weight of clothing (in pounds) by the cups of dye:
For 21 pounds of clothing: 21 pounds / 3 cups = 7 pounds per cup
For 42 pounds of clothing: 42 pounds / 9 cups = 4.67 pounds per cup
For 84 pounds of clothing: 84 pounds / 12 cups = 7 pounds per cup
For 105 pounds of clothing: 105 pounds / 15 cups = 7 pounds per cup
From the calculations, we can see that for weights of 21 pounds, 84 pounds, and 105 pounds of clothing, the ratios of weight to dye are the same, which is 7 pounds per cup. However, the ratio for 42 pounds of clothing is different, which is 4.67 pounds per cup.
Therefore, the weight of clothing for which the ratio of weight to dye is different from the other ratios is 42 pounds.
To know more about Weight here
https://brainly.com/question/86444
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Please help simplify and write your answer in the form a + bi
Answer:
[tex] 2 - 4i[/tex]
Step-by-step explanation:
[tex] \frac{10}{1 + 2i} \\ \\ = \frac{10}{1 + 2i} \times \frac{1 - 2i}{1 - 2i} \\ \\ = \frac{10(1 - 2i)}{ {1}^{2} - {(2i)}^{2} } \\ \\ = \frac{10 - 20i}{ {1} - {4i}^{2} } \\ \\ = \frac{10 - 20i}{ {1} - {4( - 1)} } \\ ( \because \: {i}^{2} = - 1) \\ \\ = \frac{10 - 20i}{1 + 4} \\ \\ = \frac{5(2 - 4i)}{5} \\ \\ = 2 - 4i[/tex]
Michael boards an elevator at the 23rd floor. She travels up 14 floors, and then down 7 floors.
What floor did she finally end up on?
Diego is selling raffle tickets for $1.75 per ticket.
a. Complete the table to show how much money he would earn if he sold each number of tickets.
b. How many tickets would Diego need to sell to earn $140? Explain your reasoning.
need ASAP
Answer:
The answer is 80
Step-by-step explanation:
Does (6, 4) make the equation y = 2x true?
Answer: nope
Step-by-step explanation: using the given coordinate, that would make the problem become 4 = 2(6) which then becomes 4 = 12
So, no, it does not make the equation true.
Hope this helps!
Which of the following is not a factor of the polynomial p(x) = x³ - 23x² + 142x - 120?
Options :
A(x - 1)
B(x - 10)
C(x - 5)
D(x - 12)
no spam answers and explain how you got the solution.
Answer:
The correct answer is C- (X-5)Solution
Given -
polynomial p(x) = x³ - 23x² + 142x - 120
Now see the coefficients
coefficient of x³ is 1 x² is -23 x is 142 and then -120
when you'll add this coefficients
i.e.
1-23+142-120=0
When sum of the coefficient turn out 0 then x = 1
using x=1, x-1 = 0
devide the given polynomial p(x) = x³ - 23x² + 142x - 120 by x-1 you'll get rest two factors hence
Answer is option C
In a 24 polygon, 23 of the exterior angles add to 310 degrees. What is the measure of the 24th exterior angle?
HELP THIS IS URGENT AB=?
multiply:5a(2apower2-3)
Answer:
5a(2a²-3)10a³-15aHOPE IT HELPS.
STAY SAFE HEALTHY AND HAPPY.please solve the picture
Answer:
6
Step-by-step explanation:
2 lengths of a rectangle are shown. (N-5) (n+5) what is the area of the rectangle?
Answer:
n^2 - 25
Step-by-step explanation:
These dimensions are the difference and the sum of two quantities.
Recall that (a - b)(a + b) = a^2 - b^2 (no middle term).
The area of this rectangle is A = (n - 5)(n + 5) = n^2 - 25
At Lincoln High School, 25% of the students play on a sports team, and 13% of students play on a sports team and take a music class.
If one student chosen at random plays on a sports team, what is the probability that this student also takes a music class?
A. 12%
B. 19%
c. 38%
D. 52%
Answer:C
Step-by-step explanation: