Consider the figure.
Find the area of the composite figure to the nearest half unit. Use 3.14 for π
Answers
Answer:
23.5 cm^2
Step-by-step explanation:
First calculate the "rectangle" with the half-circle filled in
9*3 = 27
Then calculate the half-circle using the formula for the area of a circle [tex]\pi r^{2}[/tex], then dividing it by half
3.14 * 1.5 * 1.5 / 2 = 3.5325
Subtract the area of the half-circle from the area of the rectangle
27-3.5325
= 23.4675
= 23.5 (cor. to the nearest half unit)
Related Questions
i need some more help on this
would be helpful if someone helped !
This is 6th grade math
Answers
Answer:
40.5 in²
Step-by-step explanation:
It's pretty easy if you find the surface area of each and every shape alone first.
I see 2 squares and 4 rectangles.
Let's start by finding the surface area of the squares:
-The formula to finding the area of a square is length x length.
L×L
1.5 in x 1.5 in= 2.25 in²
2.25 in is the surface area of 1 square
but we have two squares so you do 2.25 in × 2 to get the surface area of both squares.
2.25 in² × 2= 4.5 in² (this is the surface area of both squares)
Now we calculate the surface area of the four rectangles.
Formula: L×W (length × width)
6 in × 1.5 in = 9 in² (s.a of one rectangle)
Since we have four rectangles, we'll have to multiply it by 4
9 in² × 4= 36 in²
Now we add the total surface areas of both the squares and the rectangles.
4.5 in² + 36 in²= 40.5 in²
Sorry, I know it's too wordy ✌
08.01 MC)Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour):
Number of hours in school per day 4 5 6 7 8
Sample A: Number of students 70 100 125 135 70
Sample B: Number of students 80 90 120 125 85
Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? Explain your answer in two or three sentences. Make sure to use facts to support your answer.
Answers
Answer:
Meg is correct
Step-by-step explanation:
From the question, we have:
[tex]Hours:[/tex] [tex]1[/tex] [tex]2[/tex] [tex]3[/tex] [tex]4[/tex] [tex]5[/tex]Required
The average
The average hour is calculated using:
[tex]\frac{}{x} =\frac{[x}{n}[/tex]
So, we have:
[tex]\frac{}{x} =\frac{1+2+3+4+5}{5}[/tex]
[tex]\frac{}{x} =\frac{15}{5}[/tex]
[tex]\frac{}{x} =3[/tex]
Meg calculated the mean as 3; while Tara calculated the mean as 4.
Hence, we can conclude that Meg is correct
❀
PLS HELP
PYTHAGOREAN THEOREM
Answers
Answer:
8. 20.8 units
9. isosceles
Step-by-step explanation:
8.The vertical altitude line divides the triangle into two congruent right triangles. Each has a horizontal leg of 4 units, and a vertical leg of 5 units. (You can find these lengths by subtracting coordinates, or by counting grid squares.)
slant sides
The hpotenuses of these right triangles are the short sides (PR, QR) of the larger triangle PQR. We can find their length using the Pythagorean theorem. Defining S as point (-2, -1), we have ...
PS² +SR² = PR² . . . . . . . . . . . . the Pythagorean theorem relation
4² +5² = PR² = 16 +25 = 41 . . . with numbers filled in
PR = √41 . . . . . . . . . . . . . . take the square root
PR ≈ 6.4 . . . . . . . . . . . round to tenths
horizontal side
The length of side PQ is 8 units, found by subtracting x coordinates ((2 -(-6)) = 8), by counting grid squares, or by doubling the length of PS (2(4) = 8).
perimeter
The perimeter of the triangle is the sum of its side lengths:
perimter = PR +QR +PQ = 6.4 +6.4 +8 = 20.8
The perimter of triangle PQR is 20.8 units.
__
9.Sides PR and QR are congruent, so the triangle is isosceles.
_____
Additional comment
A triangle whose vertices are integer grid coordinates cannot be equilateral.
!!!?!!?!?!!??!!!!!!!!!?!
Answers
Answer:
10
Step-by-step explanation:
Substitute n for 10, 11 and 13
45 - 10 = 35
45 - 11 = 34
45 - 12 = 33
The answer is ten because when substituting n for 10, the equation
35 = 45 - 10
is true
Answer:
10
Step-by-step explanation:
Find the area of the circle. Round your answer the nearest whole number, if necessary.
Answers
Answer:
314.16
Step-by-step explanation:
Please help me, thank you
Answers
Answer:
The answer is not provided in there but the answer is -2(4x-13)
How many students are less than 69 inches in height
19
22
25
17
Answers
The number of students whose height less than 69" = 19
Hence option first is correct,
According to the given tally chart,
We can see that,
Frequency for height 65" = 1
Frequency for height 66" = 1
Frequency for height 67" = 9
Frequency for height 68" = 8
Since we have to calculate the number of students having height less than 69"
Therefore, neglect the other frequencies.
Now sum up the above frequencies,
= 1 + 1 + 9 + 8
= 19
Hence,
There are 19 students having height less than 69".
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Does the following relation represent a function?
{(1,4), (2,8), (1,12), (3,16)}
Answers
Ally needs 8 inches of string for a project. How can she find the correct length of string
Answers
Employing a ruler or metric tape, Ally can determine the length of 8 inches of string.
What is the length?A length is a unit used to describe the measurement of a possession or a distance. It can be quantified in terms of inches, hands, yards, millimeters, meters, and miles, among other quantities.
Ally needs to apply the idea of assessing in order to determine the proper length of the string. Somebody can measure the measurement of the string with a ruler. If she doesn't have a ruler, she is able to measure the length of the required thread against an object of a string following: she already knows is a specific length, like one foot, for example.
To determine the length, the woman is able to determine the number of times the segment of string slips into the length that she wants string.
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A recipe uses 3/4 cup of water and 2 cups of flour. Write the ratio of water to flour as described by the recipe
[Answer 1]
Write the value of the ratio as a fraction in the simplest form.
[Answer 2]
Answers
Answer: 3/4 : 8/4
Step-by-step explanation:
flour = 2 = 2/1 = 4/2 = 8/4
make the denominators the same and you are good
Answer:
3/4 : 8/4
flour = 2 = 2/1 = 4/2 = 8/4
please please answer this!
Answers
Answer: 600 cm2
Step-by-step explanation:
20*20=400
1/2(20*20)=200
400+200=600
600 cm2
Answer:
I think its (40)cm²
Step-by-step explanation:
The figure above is a triangle and it has (2O)cm on the right so the Left would be (2O)cm too. Then you multiply those to get your total which is (40)cm²
Use the net to find the surface area of the regular pyramid.
Answers
Answer:
7 or [tex]7^{2}[/tex]
Step-by-step explanation:
Each triangle has the surface area of 1.5, because 1 [tex]*[/tex] 3 = 3 / 2 = 1.5. You divide by two because it is half a rectangle instead of a full one. You multiply by four which would get you 1.5 [tex]*[/tex] 4 = 6. The square in the middle has the surface area of 1 because 1 [tex]*[/tex] 1 = 1. So you would get 7.
math, pls me need help cuz... bored
Answers
Answer:
yes D/2
Step-by-step explanation:
because a radius is half of the diameter
Find the mean score. Write your answer as a decimal.
Answers
Answer:
-3.75
Step-by-step explanation:
Answer:
-0.5
Step-by-step explanation:
First add up all numbers:
-4.25 + -3.75 + -1.5 + 0.75+ 1.5 + 4.25 = -3
Divide the answer by the number of numbers:
-3 / 6 = -0.5
PLEASE HELP ME FAST!
Tanya's dog is having a litter of 3 puppies. she wants to the know the probability that the letter will include 2 males and 1 female. she modelled the problem by tossing 3 coins at the same time. She let heads represent a male, and tails represent a female. the results of her 20 tosses are shown in the following table. What is the experimental. probability that a litter with 3 puppies will have 2 males and 1 female?
Answers
Which comparison is correct?
7 < |7|
-5 < -4
|5| > 7
|-5| < -4
Answers
Answer:
B
Step-by-step explanation:
1) |7| is the same as 7... as the statement 7 < 7 is not true as both of them as the same
2) -4 is greater than -5 so this statement is tue
3) |5| is the same as 5... and the statement 5 > 7 is false as 7 is the one that is greater
4) |-5| is the same as 5 bc of the bars next to the number, it indicates that u have to use absolute value.... by using absolue value, 5 is not less than -4... so this statement is false
In m + 8, the variable can have any value.
In m + 8 = 12, the variable m can have any value and be a solution.
Answers
Answer:
4
Step-by-step explanation:
Actually, for this equation to be true, m must be 4, as if a + b = c, then c - b is equal to a and vice versa. Here’s an example: If 1 + 2 = 3, then 3 - 2 = 1 and 3 - 1 = 2. So you see, 12 - 8 is equal to 4.
How many minutes and seconds worth of songs do you have?
______________.
How many hours and minutes is that equal to?
_____________.
Answers
Question 1:
48 + 63 + 28 + 44 + 43 = 226 minutes
41 + 40 + 15 + 1 + 39 = 136 seconds
136 seconds = 2 minutes and 16 seconds
The answer is 228 minutes and 16 seconds.
Question 2: 228 minutes = 3 hours and 48 minutes
The answer is 3 hours and 48 minutes, but if you're also counting seconds, add 16 seconds to the end of it.
And the hours and minutes is 3hours and 48 minutes
Dora uses a 0.35 meter length of ribbon for each bracelet she makes. She makes 4 bracelets.
Dora makes an additional 3 bracelets. how much ribbon does Dora need in total now?
Answers
Answer:
2.45
Step-by-step explanation:
0.35 x (4 + 3) = 2.45
2.45 ribbon because 0.35 x 4 = 1.4 + 0.35 x 3 = 1.05. 1.05+1.4=2.45 or 4+3=7 0.35x7=2.45
240+16/4+100+10/5+10/4+1/8 *btw needs to be a fraction*
Answers
Answer:
ITS "348 ⅝
240 + 16/4 = 244
244 + 100 = 344
344 + 10/5 = 346
346 + 10/4 = 348 ½
348 ½ + 1/8 = 348 ⅝
Step-by-step explanation:
HOPE IT'S HELP
There are nine different types of bacteria on the Petri dish.
A drawing shows some colonies of bacteria on the Petri dish. The number of bacteria in different colonies is as follows: Colony 1, 2 bacteria; colony 2, 1 bacteria; colony 3, 7 bacteria; colony 4, 4 bacteria; colony 5, 1 bacteria; colony 6, 1 bacteria; colony 7, 1 bacteria; colony 8, 1 bacteria; colony 9, 1 bacteria.
What percent of the bacteria on the Petri dish is of type 3?
Answers
37 percent of the bacteria on the Petri dish is type 3
The percent of bacteria on the Petri dish of type 3 will be 36.84%.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
There are nine different types of bacteria on the Petri dish.
A drawing shows some colonies of bacteria on the Petri dish. The number of bacteria in different colonies is as follows:
Colony bacteria
1 2
2 1
3 7
4 4
5 1
6 1
7 1
8 1
9 1
Then the percent of the bacteria on the Petri dish of type 3 will be given as,
P = [7 / (2 + 1 + 7 + 4 + 1 + 1 + 1 + 1 + 1)] x 100
P = (7 / 19) x 100
P = 36.84%
The percent of bacteria on the Petri dish of type 3 will be 36.84%.
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factor 1/3 out of 1/3x-7/3
Answers
Answer:
To factor out -1/3 out of the expression -1/3x - 8, first divide -8 by -1/3 to get 24. Now just put 24 in the place of -8 in the original expression. Your final answer should be -1/3(x + 24). Hope this helps and have a phenomenal day!
Step-by-step explanation:
The expression for the factor, 1/3 out of the 1/3x - 7/3 is 1/3 (x - 7).
What is Factor?A factor is a number which entirely divides another number.
Let 8 is a number, so there 2 and 4 are factors of it.
The given expression is,
1/3x - 7/3
To find the factor 1/3 out of the expression,
Take 1/3 out from the expression,
1/3 (x - 7)
The required expression is 1/3 (x - 7).
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Luke went shopping for a new pair of pants. The listed price of the pair of pants was $21, but the price with tax came to $22.05. Find the percent sales tax.
Answers
Answer:
5%
Step-by-step explanation:
22.05-21=1.05
1.05/21=.05
.05*100=5%
The sales tax is 5% of listed price.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given, Luke went shopping for a new pair of pants.
The listed price of the pair of pants was $21.
But the price with tax came to $22.05.
The taxed amount
= $22.05 - $21
= $1.05
To find the percentage of taxed amount:
We use the percentage formula,
let m be the required percentage.
So,
1.05 = m x 21 /100
m = 1.05 x 100 / 21
m = 105 /21
m = 5%
Therefore, taxed amount is 5% of original price.
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Find 5he diameter of the object
Answers
Answer:
4
The formula for finding diameter by radius is...
[tex]d = 2r[/tex]
[tex]2r = 2 * r(2) = 4[/tex]
__________________________________________________________
Answer:
4
Step-by-step explanation:
(NEED HELP DONT ANSWER IF YOU CANT HELP)
Answers
Answer:
a. Sunflower
b. 6%
c. honeybee
d. honeybee
Step-by-step explanation:
!; what is the scale factor of the reduction? (The correct/closest answer will get brainliest)
Answers
Answer: reduction, scale factor is 4
Step-by-step explanation:
Help Please...It's due tomorrow
Answers
Answer:1/2
Step-by-step explanation:
I’m assuming this is probability. Probability is all about the chances and odds. There are two sides to a coin, and so there is a 50/50 chance of getting either heads or tails. And that would be 1/2
please help this is all the points i got
Answers
Answer:
2nd page number 2
Step-by-step explanation:
They are both straight lines? Sorry if thats not what you wanted or if its wrong
BRAINLIEST ANSWER QUESTIONS 3 AND 4
3. The whiskers are short, does that mean there are any outliers for either gender?
4. What is an inference you can make by looking at this data about the average height of men
and women?
Answers
Answer:
3. Yes it is possible to fall out of the "average" high statistics. It does not make you not a man or woman, but it just means you are taller or shorter than average for your gender.
4. Men are averagely taller than women, and women are more commonly shorter than men.
hope this helps:)
order the numbers from least to greatest
1. -7/2, -2.8, -5/4, 4/3, 1.3
2. -11/5, -2.4, 1.6, 15/10, -2.25
Answers
1.3 x -2.8 -5/4 4/3
2. -11/5, -2.4, -2.25, 15/10, 1.6