Answer:
(21 ft)(π/2) + 21 ft
Step-by-step explanation:
Here the diameter of the semicircle is 21 ft.
πd
Half of the circumference of the full circle with diameter 21 ft is C = ---------
2
so if d = 21 ft, that half circumference is πd/2.
To this add the diameter (the horizontal line defining the bottom of the
figure): πd/2 + d = (21 ft)(π/2) + 21 ft.
Perimeter of this semicircle is P =
Point R is located at (1, 2) on a coordinate grid. Point S is located at (4, 5) on the same
coordinate grid. What is the distance from point R to point S, rounded to the nearest tenth?
A. 3.2 units
B. 4.6 units
C. 7.6 units
D.
10.0 units
Answer:
4.2 units
most likely answer choice B
Step-by-step explanation:
(1, 2) and (4, 5)
To find the distance between two points, we use the distance formula:
[tex]d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }[/tex]
Let's plug in what we know.
[tex]d = \sqrt{(4 - 1)^2 + (5 - 2)^2 }[/tex]
Evaluate the parentheses.
[tex]d = \sqrt{(3)^2 + (3)^2 }[/tex]
Evaluate the exponents.
[tex]d = \sqrt{(9) + (9) }[/tex]
Add.
[tex]d=\sqrt{18}[/tex]
Evaluate the radical.
d = 4.24
Round to the nearest tenth.
d = 4.2 units
*note: The answer choice is 4.6. I'm not sure if that is a typo on someone's end, but the distance between these two points is exactly 4.24264068712 units.
Hope this helps!
Answer:
C. 7.6 units
Hope it helps!
plz plz answer this 11pts
ill mark brainliest, question is attached
Answer:
5 is the answer!!!
Step-by-step explanation:
if its not im sorry lol
In rectangle MNOP, MO = 4x - 10 and NP = 2x + 4.
What is the length of a diagonal?
Answer:
18
Step-by-step explanation:
From the rectangle, M O = NP
4x - 10 = 2x+4
4x-2x = 4 + 10
2x = 14
x = 14/2
x = 7
SInce MO and NP are the diagonal
Length of diagonal = 4x- 10
Length of diagonal = 4(7) - 10
Length of diagonal = 28 - 10
Length of diagonal = 18
hence the required length is 18
3x+ 2 =7x -1 what is the answer
Answer:
6x
Step-by-step explanation:
Answer:
x= 3/4
Step-by-step explanation:
3x+2= 7x - 1
-3x -3x
2= 4x - 1
+1 +1
3= 4x
/4 /4
3/4 = x
The graph f(x)=x^2 was transformed to create the graph g(x)=−(x/2)^2. Which statement describes this transformation?
a reflection over the x-axis and a vertical stretch
a reflection over the y-axis and a vertical stretch
a reflection over the x-axis and a horizontal stretch
a reflection over the y-axis and a horizontal stretch
Pls help and explain because I don’t really understand
9514 1404 393
Answer:
see attached
Step-by-step explanation:
When a transversal line crosses parallel lines, it creates 8 angles. If the transversal crosses at right angles, every one of those angles is a right angle.
If the transversal does not cross at right angles, it creates 4 acute angles and 4 obtuse angles. The acute and obtuse angles are supplementary to each other, since they form linear pairs.
All of the acute angles are congruent, as are all of the obtuse angles. [this is the simplicity of it — only true if the lines are parallel]
__
Different pairs of angles have names. Angles on opposite sides of a point of intersection are "vertical" angles. Angles between the parallel lines are "interior" angles, and those outside are "exterior" angles. Angles on the same side of the transversal are called "same-side" or "consecutive" angles. Angles on opposite sides of the transversal are called "alternate" angles.
Angles in the same direction from the points of intersection (upper-left, for example) are called "corresponding" angles.
__
Angle relationships are often described in the terms described above. For example, every pair of "corresponding angles" is congruent, as are "alternate interior" or "alternate exterior" angles. In any geometry (not just one like this), "vertical angles" are congruent.
_____
You are given the measure of angle 4 (122°). This tells you every obtuse angle in the figure is 122°, and every acute angle in the figure is 180°-122° = 58°. All you need to do to find the angle measures is identify the angle as acute or obtuse.
For justification, you may be expected to determine the relationship of the requested angle to angle 4.
7. ∠8 — part of linear pair; supplementary to ∠4
8. ∠5 — alternate exterior; congruent to ∠4
9. ∠2 — corresponding; congruent to ∠4
10. ∠1 — consecutive exterior; supplementary to ∠4
11. ∠6 — vertical to ∠1*, so the same measure as ∠1
12. ∠7 — vertical to ∠4; congruent to ∠4
__
* angles 1 and 4 have no named relationship. angle 2 is corresponding to angle 4, and angle 5 is alternate exterior with respect to angle 4. Each of those is supplementary to angle 6, so angle 6 is supplementary to angle 4.
What is 80% of 72 ? pls help due today
Answer:
Step-by-step explanation:
57.6
Answer:
57.6
Step-by-step explanation:
You multiply 72 by .8 because you have to change the percent into a decimal place to multiply it by. 0.8 is 80 hundredths and fractions are numbers out of 100. I hope I could help you :)
The area of the trapezium above is 22 cm².
What is the value of x ?
Answer:
4cm
Step-by-step explanation:
Given area= 22cm²
Height =4cm
Parallel sides = xcm and 7cm
Area of trapezium = ½( sum of parallel sides) x height
22cm² = ½(xcm+7cm)×4cm
22cm²= ½ ( x+7)cm x 4cm
opening the bracket
22cm²= 4x+28/ 2
cross multiply
44cm²=4x+28
4x=44-28
4x=16
x=4cm
What is 78,400,000 expressed in scientific notation
The scientific notation of 78,400,000 will be 7.84 × 10⁷.
What is the law of indices?Index (indices) in Maths is the power or exponent which is raised to a number or a variable.
For example 5³ = 5²5 here we break 5³ into 5² and 5 so it is called the law of indices.
An algebraic expression is a quantity made up of symbols and processes + - / and multiplication Expressions utilizing indices are made simpler using the laws of indices.
Scientific notation of any number is given in form of a.bcde...× 10^something
Given the number,
78,400,000
Multiply and divide by 10⁷
⇒ 78,400,000 × 10⁷/10⁷
⇒ 7.84 × 10⁷.
Hence "The scientific notation of 78,400,000 will be 7.84 × 10⁷".
To learn more about indices,
https://brainly.com/question/170984
#SPJ1
Find the area of the shaded region. Round to the nearest hundredths place when necessary.
please show work
Answer:
450.25 sq in
Step-by-step explanation:
Subtract area of triangle from area of circle
Area of Triangle:
need to get the radius (which we will use as the height) and double the radius to get the base
Pythagorean Theorem:
21² + 20² = c²
441 + 400 = c²
c = [tex]\sqrt{841}[/tex] which is 29
A(Δ) = 1/2(29)×14.5
= 210.25
Area of Circle:
A = π(14.5²)
= 660.52
Difference = 660.5 - 210.25 = 450.25
PLEASE HELP. NO SCAMMERS
the storm trooper camp is open for 7 and 1/2 hours a day. The camp keeps one guard on duty at a time, and their shift is 1 and 1/2 hours long. how many shifts are there a day?
Answer:
there are 5 shirts a day
Step-by-step explanation:
you divide the number of hours the camp is open by the time a guard is on duty. 7.5 ÷ 1.5 =5
prove that the sum of two consecutive exponents of the number 5 is divisible by 30. If N ia the smaller of two consecutive exponents, then the sum of two consecutive exponents of 5 is equal to _ *30, and therefore is divisible by 30.
Answer:
5^n-1
Step-by-step explanation:
5^n-1*30
help please!! like asap
What is the answer to this question?
Answer:
A-75 and B-25
Step-by-step explanation:
Firstly, divide the 200 students by the amount of sections (8) and that gives you 25 a section. Since year 7 has 3 sections and year 9 has 1, 3(25)=75 and 25(1)=25.
Answer:
28 pupils in year 7
22 pupils in year 9
Which statement is true?
can someone help me pls?
Gabriel pays $37.80 for a ticket to a show. The amount includes an 8% sales tax.
What is the price of the ticket without sales tax? Show your work.
Answer:
$34.78
Step-by-step explanation:
37.80 × 8 ÷ 100 = 3.02
37.80 - 3.02 = 34.78
A total of 42 gallons of a glycol solution needs to be added to a heating water loop to ensure the water does not freeze if there is a heating equipment failure. The glycol solution comes in 1.75-gallon cans. How many cans will be needed? Your answer should be a whole number.
Answer:
Number of cans of glycol solution needed = 24 cans
Step-by-step explanation:
Total glycol solution needed = 42 gallons
Volume of each can of glycol solution = 1.75 gallon
How many cans will be needed
Number of cans of glycol solution needed = Total glycol solution needed / Volume of each can of glycol solution
= 42 / 1.75
= 24
Number of cans of glycol solution needed = 24 cans
How DISGUISE WILL BE WRITTEN IN THE CODE
Answer:
what are you asking?
Step-by-step explanation:
A cyclist travels 5.8 km in 30 minutes.
What is his average speed in km/h?
Answer:
11.6km/hr
Step-by-step explanation:
You need to double 30 minutes to get an hour, so do the same with the distance.
5.8*2=11.6 km
11.6km/hr
PLEASEEE HELP MEEEE
NO LINKSSS
Answer:
[tex]\huge\boxed{(2,\ 3);\ (-1,\ 6)}[/tex]
Step-by-step explanation:
[tex]f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right[/tex]
substitute (1) to (2):
[tex]x^2-2x+3=-x+5[/tex] add x to both sides
[tex]x^2-2x+x+3=-x+x+5[/tex]
[tex]x^2-x+3=5[/tex] subtract 5 from both sides
[tex]x^2-x+3-5=5-5[/tex]
[tex]x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}[/tex]
substitute the values of x to (2):
[tex]x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}[/tex]
A drawer contains 2 Red Socks, 7 White Socks, and 9 blue sock Without looking, you draw out a sock and then draw out a second sock without returning the first sock. What is the probability that the first sock and the second sock are both red?
Answer:
1/153
Step-by-step explanation:
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one ids attached to the event. If it doesn't a value of zero is attached to the event.
probability that the first sock and the second sock are both red = (number of red socks /total number of socks) x (number of red socks /total number of socks)
At the first pick, the probability = 2/18
At the second pick because there is no replacement, there would be 1 red socks and 17 socks = 1/17
2/18 x 1/17 = 1/153
Can anyone answer this ASAP
Answer:
650 ft^2
Step-by-step explanation:
Without the gap, the area of the rectangle is 20ft x 35ft = 750 ft^2. The gap is a square having 10ft on the side so its area is 10ft x 10ft = 100 ft^2. Subtracting the area of the square gap from the rectangle gives you 650 ft^2.
Hamburger Heaven is having a lunch special where customers buy one -pound cheeseburger and get one free. If they set aside pounds of meat, how many -pound cheeseburgers can they make?
A.
165
B.
20
C.
330
D.
496
Answer: 459 cheeseburgers
Step-by-step explanation:
To find out the number of cheeseburgers that can be made, divide the amount of meat set aside by the amount of meat it takes to make one cheeseburger.
The amount of meat they have is:
= 114²/₃
= 344/3
Number of cheeseburgers is:
= 344/3 ÷ 1/4
= 344/3 * 4/1
= 1,376 / 3
= 458.67
= 459 cheeseburgers
helpppppp meeeeeeeee
Answer:
True
Step-by-step explanation:
This is so basic haha but happy to help
How do I find the domain and range of y= -(x-2)^2+3?
Answer:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values.
Step-by-step explanation:
7. Beyunka has six baseballs that she keeps at her grandparents' house. That
number represents 20% of the baseballs that come in a case. The relationship is
shown in the tape diagram shown below. What is the total number of baseballs
that come in a case? *
Number of Baseballs
O A. 20
O B. 30
O C. 40
D. 60
6) Which table represents a function?*
Answer:
The table d.
Step-by-step explanation:
Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10. What is the number?
Answer:
The product of 10 and a number is = 10x Twice that number means 2x 36 less than twice that number= 2x-36. It is given that....The product of 10 and a number is the same as 36 less twice that same number
Step-by-step explanation:
The required number that is Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10, is 8.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
Let the number x,
According to the question,
9 (x - 4) = 2(x + 10)
Simplifying,
9x - 36 = 2x + 20
9x - 2x = 36 + 20
7x = 56
x = 56 / 7
x = 8
Thus, the required number that is Nine times the difference of a number and 4 is the same as the product of 2 and the same number plus 10, is 8.
Learn more about arithmetic here:
brainly.com/question/14753192
#SPJ2
Find the value of x. (1. Label the sides, 2. Figure out which function, 3. Set up, 4. Solve) THE FUNCTIONS ARE AT THE BOTTOM
Will give brainliest for full answer
Answer:
1) x = 19.6, cos, cos(40) = x/15
2) x = 9.6, tan, tan(21) = x/25
3) x = 9.2, sin, sin(16) = x/33.5
4) x = 29.8, sin, sin(50) = 22.8/x
5) x = 32.3, tan, tan(30) = x/56
Hopefully this helps :)