Answer:
96 cm²
Step-by-step explanation:
From the question,
s = (2πr∅/360)+2r................. Equation 1
Where s = Perimeter of a sector, r = radius, ∅ = angle subtend by the sector at the center of the circle.
Given: s = 40 cm, r = 8 cm
Constant : π = 3.14.
Substitute into equation 1 and solve for ∅
40 = (2×8×3.14×∅/360)+(2×8)
40 = (50.24∅/360)+16
40-16 = 50.24∅/360
50.24∅/360 = 24
50.24∅ = 24×360
50.24∅ = 8640
∅ = 8640/50.24
∅ = 171.97°
Area of a sector (A') = ∅πr²/360
A' = 171.97×3.14×8²/360
A' = 95.997
A' ≈ 96 cm²
What is the greatest common factor of 6, 42, and 30?
Answer:
6
Step-by-step explanation:
I found that the greatest common factor for those numbers is 6
Can anyone double check this to make sure I’m correct?
Answer:
looks like it's right!
Step-by-step explanation:
Answer:
I got 33.82
Step-by-step explanation:
triangle PQR is similar to triangle XYZ if PQ = n + 2, QR = n - 2 and XY=n^2 - 4, what is the value of YZ, in terms of n?
Answer:
(n-2)²
Step-by-step explanation:
If triangle PQR is similar to triangle XYZ, then;
PQ/QR =XY/YZ
Given
PQ = n + 2,
QR = n - 2 and
XY=n^2 - 4,
Substitute
n+2/n-2 = n²-4/YZ
n+2/n-2 = (n+2)(n-2)/YZ
1/n-2 = n-2/YZ
Cross multiply
YZ = (n-2)(n-2)
YZ = (n-2)²
Hence the value of YZ in terms of n is (n-2)²
Find the surface area of the prism.
Answer:
[tex]A=202\ cm^2[/tex]
Step-by-step explanation:
Given that,
The dimensions of the prism are 4 cm, 9 cm and 5 cm respectively.
The formula for the surface area of the prism is given by :
[tex]A=2(lb+bh+hl)[/tex]
Put all the values,
[tex]A=2(4(9)+9(5)+5(4))\\\\A=2(36+45+20)\\\\A=202\ cm^2[/tex]
So, the required surface area of the prism is equal to [tex]202\ cm^2[/tex].
Find the area of the parallelogram
Answer:
513
Step-by-step explanation:
B×L=Area
Base=24
Length =19
24×19=513
Mrs. Smith is shopping for a toy chest to go
in her kids' playroom. She looks at the options
shown.
How much floor space will toy chest A take up?
Answer: 20ft
Step-by-step explanation:
floor space is only worried about the area of the base, so A would be 4*5 or 20
Answer:
20
Step-by-step explanation:
find x
help please asap
Answer:
i think it is 51 degrees
Step-by-step explanation:
Find the midpoint of the segment below and enter its coordinates as an
ordered pair. If necessary, express.coordinates as fractions, using the slash
mark ( / ) for the fraction bar.
(-1,5) (5,5)
Answer:
(2,5)
Step-by-step explanation:
(Xm, Ym)= ( (x1+x2)/2, (y1+y2)/2 )
= (5 + (-1))/ 2, (5+5)/2
= (4)/2, (10)/2
= 2, 5
PLEASE hURRY The population, P, of six towns with time t in years are given by the following exponential equations: (i) P = 1000 (1.08) Superscript t (ii) P = 600 (1.12) Superscript t (iii) P = 2500 (0.9) Superscript t (iv) P = 1200 (1.185) Superscript t (v) P = 800 (0.78) Superscript t (vi) 2000 (0.99) Superscript t Which towns are growing in size? a. i, ii, and iv c. i, ii, and iii b. iii, v, and vi d. vi, i, and ii
Answer:
Its A
Step-by-step explanation:
I got it right on Edge Test
The function that depicts town that is growing in size are P = 1000 (1.08)^t and 1200 (1.185)^t
Expoenential functions
The standard exponential function is expressed as:
y = ab^x
The value of b will determine whether the towns are growing in size or not, For instance;
If b > 1 then the town is growing, else it is declining
From the given exponential functions, the function that depicts town that are growing in size are P = 1000 (1.08)^t and 1200 (1.185)^t
Learn more on exponential function here; https://brainly.com/question/12940982
Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 31.9 hg < μ < 34.5 hg with only 19 sample values, x_ = 33.2hg, and s = 2.9 hg?
Answer:
Step-by-step explanation:
Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level.
The confidence interval of mean
=32.9 ± 1.96 × 6.9/250
Confidence Interval = 32.9 ± 0.5382
I need help asap please! 20 points!
Graph the parabola.
y=x²–2x-4
Plot five points on the parabola: the vertex, two points to the left of the vertex, and two points to the right of the vertex. Then click on the graph-a-function
button
This is the graph I hope this helps
Hhhhhhhhhhhhheeeeeeellllllllppppppppp
Answer:
With whattttttttttttttttttttttttttt
Step-by-step explanation:
Help..........................
Answer:
-21 yd
Step-by-step explanation:
[tex]-31-2+12=-21[/tex]
the length of a rectangle is five inches less than three times its width . if the perimeter of the rectangle is 150 inches , find the dimensions.
Step-by-step explanation:
let x be the width of the rectangle.
given
length =
[tex]3x - 5[/tex]
inches.
also given Length + Width = 150 inches,
[tex]3x - 5 + x = 150 \\ 4x - 5 = 150 \\ 4x = 150 + 5 \\ 4x = 155 \\ x = 155 \div 4 \\ = 38.75in[/tex]
Since
Length = 3x-5 in
Width = x in,
Length = 3(38.75) - 5 = 111.25 in
Width = 38.75 in
Help due tonight!!
2. What is m < 2?
3. What is m <4?
Plz show work for both
Answer:
I think that you need a better teacher because this on, gives, extremely... hard questions
(Btw like the profile name)
Find the measures of the numbered angles in the isosceles trapezoid.
m<1=
9514 1404 393
Answer:
49°131°131°Step-by-step explanation:
The base angles are congruent in an isosceles trapezoid.
∠1 = 49°
Same-side angles are supplementary in any trapezoid.
∠2 = ∠3 = 180° -49°
∠2 = ∠3 = 131°
Liam has a bag containing 5 red, 2 blue, 5 green, 6 yellow and 2 white marbles that
are all the same size and shape. What is the probability of randomly choosing 2 green
marbles without replacing?
Answer:
5 green
20 total
first green = 5/20 = 1/4
second green = 4/19
(1/4)(4/19) = 1/19
Step-by-step explanation:
When y=x^2 is transformed to y=(x+1)^2-3 , the corresponding graph is shifted a) 1unit left and 3 units down. c) 1 unit left and 3 units up. b) 1 unit right and 3 units down. d) 1 unit right and 3 units up.
HELP ME PLEASE!!! No links
Answer:
H 60
Step-by-step explanation:
You would need to find out what you would multiply times 0.5 to get 30. Then to get that answer just divide 30 by 0.5. which is 60
A bag of skittles includes 3 reds, 2 purple, 4 green, 2 organge, and 6 yellow. True or False - Is the theoretical probability of pulling a yellow out of the bag 3/11?
Answer:
true
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
3 + 2 + 4 + 2 + 6 = 17
6/17, it cant be simplifed
State the domain and range
of f(x) = x²
Answer:
Domain : All real numbers
Range: y >= 0
Step-by-step explanation:
Answer:
range :all real numbers
domain: all real numbers
Brainliest for correct answer, asap please.
Answer:
Not a function
Not a function
Function
Step-by-step explanation:
The 1st one isn't as clear in the picture, but it looks like the ends of each line overlap the each other.
12
B
4
E
D
3
A
Link= REPORT
(A) 4
(B) 5
(C) 3
(D) 6
Someone pls help!!
Answer:
i would say B
Step-by-step explanation:
96 = 12d
A. 108 B. 84 C. 8 D. −1 8
Answer:
Step-by-step explanation:
Answer:
I dont know
Step-by-step explanation:
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find the length of x
help please i need it ssap
Answer:
x = 5.5
Step-by-step explanation:
5+6 = 11
[tex]\frac{2.5}{x}[/tex]=[tex]\frac{5}{11}[/tex]
cross multiply
5x = 27.5
x = 5.5
A gym charges $25 per month plus extra four dollars to swim in a pool for an hour if a member only has $45 to spend each month at most how many hours can’t remember swim
Answer:
5 hours
Step-by-step explanation:
So the set fee is 25. 45-25 = 20. Now, 4 dollars an hour. 20/4 = 5, so 5 hours
Nara buys 20 ounces of dried cherries in bulk. If dried
cherries cost $0.55 per ounce, how much will she pay?
Answer:
11 dollars, is you multiply .55 by 20 its 11
A plane descends 1000 ft while flying
2.7 mi. What is the angle of descent?
Answer:
4.02°
Step-by-step explanation:
The angle of descent can be obtained using trigonometry ;
Since we have a right angled triangle ;
Let's use the relation:
Sin θ = opposite / hypotenus
Hypotenus = 2.7 miles
1 mile = 5280 feets
2.7 miles = (2.7 * 5280) = 14256 feets
Sin θ = 1000 / 14256
Sin θ = 0.0701459
θ = sin^-1(0.0701459)
θ = 4.0223674
Meiling needed $5.35 to buy a ticket to a show. In her wallet, she found 2 dollar bills, 11 dimes, and 5 pennies. How much more money does Meiling need to buy the ticket?
Answer:
no she needs $2.20 more
Step-by-step explanation:
2+ 1.10+.05= $3.15
$5.35 - $3.15 = the answer
Find the RANGE
135 120 125 133 66 78 81 91 145 135 68
