Answer:
Step-by-step explanation:
If you're asking for the area of the sector, it's the central angle of 360, times the area of the circle, for example, if the central angle is 60, and the two radiuses forming it are 20 inches, you would divide 60 by 360 to get 1/6.
The requried area of a sector bounded by a 180° arc is 8π square inches.
What is an area of the sector?The area of a sector is a portion of the circle enclosed by two radii and an arc and is given by the formula A = (θ/360)πr², where θ is the angle in degrees and r is the radius of the circle.
Here,
The area of a sector bounded by a 180° arc in a circle with a radius of 4 inches can be found using the formula;
A = (θ/360)πr²
Where θ is the angle in degrees and r is the radius.
Since the angle is 180°, we have:
A = (180/360)π(4²) = 8π square inches.
Thus, the area of a sector bounded by a 180° arc is 8π square inches.
Learn more about the area of sectors here:
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`4x+3y=27` Solve the equation for y.
Answer:
y = 9-4/3x
Step-by-step explanation:
subtract 4x from both sides
divide by 3
Mr. Ellis expected 50 families to attend parent-teacher conferences, but 60 families attended. Which choice best represents the percent error? USE YOUR FORMULA!
Question 3 options:
0.16%
16.7%
20%
183.3%
Answer:
16.7%
Step-by-step explanation:
7. By selling a bicycle for * 2,850, a shopkeeper gains 14%. If the profit is reduced to 8%, then the selling price
will be
(a) 2,600
(b) 2,700
(c) 2,800
(d) 3,000
with steps
Selling price of a bicycle = 2850
Profit percentage = 14%
We know that :
[tex]\color{plum}\tt{Cost \: \: price = \frac{Selling \: \: price \: \times \: 100}{100 \: \: + \: \: profit \: \%} }[/tex]
Then, the cost price of this bicycle :
[tex] = \tt \frac{2850 \times 100}{100 + 14} [/tex]
[tex] = \tt \frac{285000}{114} [/tex]
[tex] =\color{plum} \tt2500[/tex]
Thus, the cost price of this bicycle = 2500
In another scenario :
Profit percentage = 8%
Cost price of the bicycle = 2500
Then, Selling price will be equal to :
Let x be the selling price of the bicycle.
[tex] = \tt2500 = \frac{\: x \: \times 100}{100 + 8} [/tex]
[tex] = \tt2500 = \frac{100x}{108} [/tex]
[tex] =\tt 100x = 2500 \times 108[/tex]
[tex] = \tt100x = 270000[/tex]
[tex] =\tt x = \frac{270000}{100} [/tex]
[tex] =\color{plum}\tt x = 2700[/tex]
Therefore, the selling price with a profit of 8% will be = 2700
CH3CH2CHCH2CH3OH name ?
Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.
Quinn likes to knit hats and mittens for friends and family. Last fall, she knitted 4 hats and 3 pairs of mittens, which took a total of 56 hours. This fall, she knitted 3 hats and 1 pair of mittens, which took a total of 27 hours. If each hat and each pair of mittens takes the same amount of time to knit, how long does it take Quinn to knit a hat and a pair of mittens?
Answer:
hats = 5
mittens = 12
Step-by-step explanation:
hats = h
mittens = m
Uknown:
- How many hours per hats
- How many hours per mittens
Known:
- How many hours in total
- How many pairs of mittens made
- How many pairs of hats made
4h + 3m = 56
3h + 1m = 27
3h + m = 27
m = -3h + 27
4h + 3m = 56
4h + 3(-3h + 27) = 56
4h - 9h + 81 = 56
-5h = 56 - 81
-5h = -25
-5h/5 = -25/5
-h = -5
-h/-1 = -5/-1
h = 5
3h + m = 27
3(5) + m = 27
15 + m = 27
m = 27 - 15
m = 12
Check: h = 5, m = 12
4h + 3m = 56
3h + 1m = 27
4h + 3m = 56
4(5) + 3(12) = 56
20 + 36 = 56
56 = 56
3h + 1m = 27
3(5) + (12) = 27
15 + 12 = 27
27 = 27
What is f(2) if f(x) = 2x-5 and f(4) if f(x) = -3x + 15
step by step please!
Answer:
f(2) = - 1 and f(4) = 3
Step-by-step explanation:
To evaluate f(2), substitute x = 2 into f(x), that is
f(2) = 2(2) - 5 = 4 - 5 = - 1
To evaluate f(4), substitute x = 4 into f(x)
f(4) = - 3(4) + 15 = - 12 + 15 = 3
Which relationship describes angles 1 and 2? Select each correct answer.
A)complementary angles
B) vertical angles
C)supplementary angles
D)adjacent angles
Brainly for the first person to give a good explanation and answer! :)
Answer:
d
Step-by-step explanation:its right
Solve.
Okay here is 20 letters brainy
Answer:
-12
Step-by-step explanation:
4 1/2 - 5 1/8 = -0.625
7.5 x -0.625 = -12
Please help me I’ll mark brainliest
Answer:
Here I just did the Workin out. don't worry it's correct. Have a nice day!!
Please help me I need it it is my last question
Answer:
C
Step-by-step explanation:
Answer:
The best deal is c. 5 pints of oil for $8
Step-by-step explanation:
b.
10 ft
C
3 ft
area of the rectangle =
area of the triangle =
Step-by-step explanation:
rectangle=l×w
10×3=30ft
triangle=b×h/2
10×3/2
30/2
=15ft
I’ll mark you a branilyst if you answer this question
Answer:
The answer is 8 cm, i would show work but im in school
What fraction will equal 1
Answer:
Any fraction with the same number on both the top and bottom
Step-by-step explanation:
example: 1/1 and 2/2
Answer:
2/2, 10/10
Step-by-step explanation: They all equal one
I need helppppppppppppp
Answer:
use math
Step-by-step explanation:
What is the length of EF in the right triangle below?
Answer: A.)
Step-by-step explanation:
1,296.
Answer:
I think the answer is 36
SOMEONE SMART DO ALL DAY 13 FOR ME, ILL GIVE BRAINLIEST PLZZ IM CRYING
Answer:
12 shamrocks
6 lbs
3/4 =6/8
Step-by-step explanation:
52,428 divided by 34
Answer:
1542
Step-by-step explanation:
Different cities have different sales tax rates. Here are the sales tax charges on the same items in two different cities.
Complete the tables.
I think the lamp is 26.5? because maybe it is 25+1.50 since the first one was 8.00+0.48 I'm not sure about the others sorry:( I hope you'll get your answer though!
What is 4 x 4 x 4 x 4 x 4 x 4 in exponential notation?
Answer:
[tex]4^{6}[/tex]
4096
Step-by-step explanation:
i tried
Answer:
[tex]4^{6}[/tex]
Step-by-step explanation:
4 x 4 x 4 x 4 x 4 x 4 it's really just counting how many 4's there are. In this case there are 6 and the number being repeated 6 times is 4 so we only put it as [tex]4^{6}[/tex]. I know I'm late just wanted to answer :'D
Marta put $4.89 in her coin bank. Each day she added 1 quarter, 1 nickel, and 6 pennies. How much does she add each day? How much money was in her coin bank after 6 days?
Step-by-step explanation:
Marta put $4.89 in her coin bank.
Each day she added 1 quarter, 1 nickel, and 6 pennies.
We know that,
1 quarter = 25 cents
1 nickel = 5 cents
1 penny = 1 cent
⇒ 6 pennies = 6 cent
Total amount added in 6 days,
= 25 cents + 5 cents + 6 cent
= 36 cents
We know that,
1$ = 100 cents
36 cents = $0.36
Total money in her bank,
= $4.89 + $0.36
= $5.25
Hence, this is the required solution.
Please help ILL MARK U BRAINLIEST!!
The cost of 5 pounds of bananas is $3.25. What is the constant of proportionality that relates the cost in dollars, y, to the numbers of pounds of bananas, x?
Answer:
0.65:1
Step-by-step explanation:
please help this is due in ten minutes!
Answer:
Step-by-step explanation:
the sum of angles in a triangle =180
73+x+x-11=180
73+2x-11=180
62+2x=180 we subtract 62 from both side so we can solve for x
2x=180-62
2x=118
x=59
the other angle is 59-11=48
Answer:
59=x
all angles =180
2x+62=180
2x=118
x=59
What is the solution for x in the equation?
29 + 15x = -x − 3
A. x= 1/2
B. x= -1/2
C. x= 2
D. x= -2
Answer:
x=-2
Step-by-step explanation:
solve 2x to the power of 2 = 32
Answer:
x=4
Step-by-step explanation:
x
=
4
or
x
=
−
4
Explanation:
First divide throughout by
2
to get
x
2
=
16
Now take the square root on both sides to get
x
=
±
4
.
You may now substitute the values of
x
=
4
and
x
=
−
4
back into the original equation and check that it satisfies the equation which it does.
Alright here is the next question
Answer:
Formula: length x width
Area: 51 km
Step-by-step explanation:
Area: length x width
Area: 17 x 3 = 51
Answer:
For the forumula its Area= LW (Length and width)
A= 51km
If you are trying to find the perimeter, it should be 40.
Find the midpoint of the segment.
A. (1.5, 2)
B. (6, 8)
C. (2, 1.5)
A tractor can plough 20 acres in 4 hours. How many acres can 5 such tractors plough in 8 hours?
Answer:
200 acres
Step-by-step explanation:
plz mark brianliest
because you have on tractor going 20 in 4hours you multiply by five giving you 100 and then times 2 because the hours are doubled
Enlarge the triangle by scale factor 1.5 using (4,4)
as the center of enlargement.
Answer:
The answer is below
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are translation, reflection, dilation and rotation.
Dilation is the enlargement or reduction of the size of a figure. If a point A(x, y) is dilated about the center of origin by a factor k, the new point is at A'(kx, ky)
If a point A(x, y) is dilated about the point (a,b) by a factor k, the new point is at A'(k(x - a) + a, k(y - b) + b)
From the image the vertex of the triangle is at (0,0), (-2, 4) and (-2, 0). If the triangle is enlarged by scale factor 1.5 using (4,4) as the center of enlargement.. Hence the new points are:
For (0,0): (1.5(0 - 4) + 4, 1.5(0 - 4) + 4) = (-2, -2)
For (-2,4): (1.5(-2 - 4) + 4, 1.5(4 - 4) + 4) = (-5, 4)
For (-2, 0): (1.5(-2 - 4) + 4, 1.5(0 - 4) + 4) = (-5, -2)
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Freda bought 6 gallons of gasoline for $19.14
What was the unit price of this gasoline?
Find the exact length of the third side.
39
36
The answer is 15 cm
39 cm, 15 cm, 36 cm