Answer:
Step-by-step explanation:
A=1/36P2cot(20°)=1/36·1262·cot(20°)≈1211.63754in²
I hope this helped.!
Answer:
area = 1217.16 in²
Step-by-step explanation:
a nonagon has 9 sides
each side = 126/9 = 14 inches
it forms 9 identical isosceles triangles with a base of 14
each top angle = 360/9 = 40°
the area of each triangle can be found by the formula area = 1/2(base)(height)
We know the base is 14
the height would be calculated be constructing a perpendicular line from the top of the triangle and perpendicular to the base. This smaller triangle base is 1/2 of 14, or 7 inches. it's top angle is 1/2 of 40°, or 20°
the height of smaller triangle is the same height as the larger triangle.
tan 20° = 7/height
0.3640 = 7/x
0.3640height = 7
height = 19.32 inches
area of larger triangle = 1/2(14)(19.32) = 135.24 in²
total area = 9 x 135.24 = 1217.16 in²
NEED HELP! The wind-speed, in miles per hour (mph), was measured every six hours during a day on the Isles od Scilly.
Answer:
Mean=
36/5=7.2
Median=8
Step-by-step explanation:
mean=add all the numbers/divide by how many
13+12+8+2+1=36
5 numbers altogether hence,
36/5=7.2
median=arrange all numbers and middle term is the median(for odd numbers only)
13,12,8,2,1
Hence,8 is the middle term
Hope this helped xx
lol what is the answer pls
the ratio of the number of boys to the number of girls in the class is 1.6 which statement must describe the class
a statement that would describe the class would be that for every one boy there are six more girls so the class has more girls in it
help me get it right no links
Answer:
kjhgfdfgbjuyt hope it helps
Step-by-step explanation:
John is 189cm tall and Sue is 150cm tall.
How much taller is John than Sue
Answer:
39 cm taller
Step-by-step explanation:
Subtract the heights:
189 - 150 = 39.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
True or false: the basic rate can be calculated by dividing the basic wage by the hours worked?
Answer
true
Step-by-step explanation:
Divide the total earnings for the workweek, including earnings during overtime hours,
Answer:
True
Step-by-step explanation:
Im the smartest in my college
The principal P is borrowed at a simple interest rate r for a period of time t. Find the loan's future value A, or the total amount due at time t. Round answers to the nearest cent. P=$2000, r=%6, T=6 years
Answer:
$2720
Step-by-step explanation:
Given data
Principal=$2000
r= %6
T= 6 years
The expression for the final amount is
A= P(1+rt)
A=2000(1+0.06*6)
A=2000(1+0.36)
A=2000*1.36
A=2720
Hence the amount is $2720
x -y = 3
solve for y
Answer:
y=x−3
Step-by-step explanation:
x−y=3
Step 1: Add -x to both sides.
x−y+−x=3+−x
−y=−x+3
Step 2: Divide both sides by -1.
−y/−1=−x+3/1
y=x−3
PLEASE HELP ASAP WILL MARK BRAINLIEST
Part A
Which line best fits the data, l, m, or n? Why?
Part B
In the equation of a line, y = mx + b, what does b stand for? What is the value of b for the line of best fit?
Part C
In the equation of a line, y = mx + b , what does m stand for? What is the value of m for the line of best fit?
Part D
Now that you know m and b, what is the equation of the line of best fit?
Answer:
Part A:
Most of the data points are above line m. All of the data points are below line n. The data points are evenly distributed on either side of line l. Therefore, line l is the line of best fit for the data.
Part B:
For the line of best fit, the y-intercept is approximately 10 and the slope is approximately 2 .
Part C:
Y= 2x+10
Step-by-step explanation:
Part A:
Most of the data points are above line m. All of the data points are below line n. The data points are evenly distributed on either side of line l. Therefore, line l is the line of best fit for the data.
Part B:
To find the y-intercept of a line, identify where the line intersects the y-axis. Because the line of best fit is line l, the y-intercept is 10.
To find the slope, choose two points on line l, such as (10,30) and (30,70):
Part C:
To get the equation of the line, substitute the y-intercept, 10, for b and the slope, 2, for m.
Please give me the brainlliest crown Pls
PRACTISE NOW 9A
1.
Draw a line segment AB of length 6 cm. Construct the perpendicular bisector of AB.
If the volume of the solid below is 490 cubic inches, what is the height of the solid?
The other measurement is 5 inches.
Answer:The percent change in volume between cylinders A and B is 50%.
Step-by-step explanation:
A roll of wire has 51 inches of wire. If each bracelet requires 7.2 inches of wire, estimate the number of bracelets that can be made. Explain why your answer is right.
Answer:
7
Step-by-step explanation:
51 ÷ 7.2 is about 7.08 continued but you can't make .08 of a braclet so it's just 7
Factor completely 625x4 − 81.
(5x − 3)(5x − 3)(25x2 + 9)
(5x − 3)(5x + 3)(25x2 − 9)
(5x + 3)(5x + 3)(25x2 + 9)
(5x − 3)(5x + 3)(25x2 + 9)
This scatter plot shows the relationship between the average weight and average heart rate for 11 different animals. The line of best fit is shown on the graph. Select True or False for each statement based on the graph.
Answer:
See below
Step-by-step explanation:
1) I would lean more toward false because most of the points aren't in a straight line
2) That is most likely true because the line of best fits appears to be hitting that point
3) That is false because point D is located on the line of best fit which means it isn't an outlier
‼️ILL MARK YOU BRAINLEST IF YOU RESPOND HELP PLS‼️
1) 38.465 π
2) 38.5 π
3) 12.25 π
4) 3.5 π
Answer:
Option 3
Step-by-step explanation:
The area of a circle is given by [tex]\pi r^2[/tex], where r is the radius of the circle. Since the radius of the circle is 3.5, its area is [tex]\pi * (3.5)^2[/tex], which is [tex]12.25\pi[/tex].
Answer:
3)
Step-by-step explanation:
Area = pi * [tex]r^{2}[/tex] = pi * [tex]3.5^{2}[/tex] = pi * 12.25 =12.25
Are the vectors u1→=<2,3>and u2→=<-3,-2>parallel? Show your work and explain.
Answer:
Two vectors are parallel if they are scalar multiples of one another. If u and v are two non-zero vectors and u = c v, then u and v are parallel. The following diagram shows several vectors that are parallel.
Step-by-step explanation:
The requried given vectors are not parallel. As their dot product is not zero.
What is a vector?Vector is defined as the quantities that have both magnitude and direction are called a vector quantity and the nature of the quantity is called a vector.
Two non-zero vectors are parallel if they are scalar multiples of each other. In other words, if one vector is a constant multiple of the other, then they are parallel.
Let k be the scalar multiple such that:
u₁ = k u₂
Substituting the given values of u₁ and u₂, we get:
<2, 3> = k <-3, -2>
Multiplying both sides by -1, we get:
<-2, -3> = k <3, 2>
Now, we can see that the two vectors are not scalar multiples of each other, since there is no value of k that satisfies this equation. Therefore, u₁ and u₂ are not parallel.
We can also verify this by checking their dot product. If the dot product of two non-zero vectors is zero, then they are orthogonal (perpendicular), not parallel. The dot product of u₁ and u₂ is:
u₁ ⋅ u₂ = (2)(-3) + (3)(-2) = -6 - 6 = -12
Since the dot product is not zero, we can conclude that the vectors u₁ and u₂ are not parallel.
Learn more about vectors here,
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A nutritionist at a school is planning a schedule of breakfasts for 175 students. 73 students say they want milk, 97 want juice, and 60 want fruit. 19 say they want both milk and fruit; of these 11 want juice as well. 34 want only milk and 36 want only fruit. How many students want juice only?
The sum of two numbers is 38. The greater number is 8 more than the other number. Find each number.
Step-by-step explanation:
Answer:
23 and 15
Step-by-step explanation:
Create a system of equations where x is the greater number, and y is the smaller number.
x + y = 38
x = y + 8
Solve by substitution, by substituting the second equation into the first one, then solving for y:
x + y = 38
(y + 8) + y = 38
Add like terms and solve for y:
2y + 8 = 38
2y = 30
y = 15
Add 8 to this, to find the greater number:
15 + 8
= 23
So, the numbers are 23 and 15.
Can someone summarize this for me please?
Answer:
0 is 16 1 is 13 2 is 17 that's it final answer
Create a data set with at least 7 values so that the mean is 20.
plz no bot if bot i will kill 50 point
Answer:
I cant remember this
Step-by-step explanation:
i cant remember
Answer:
Hello! answer: 45, 20, 15, 11, 36, 8, and 5
Step-by-step explanation:
Data set I created: 45, 20, 15, 11, 36, 8, and 5
It doesnt matter what the data set is as long as it has 7 numbers added together that equals 140 because 140 ÷ 7 = 20 45 + 20 + 15 + 11 + 36 + 8 + 5 = 140 then divide by how many numbers are in the data set and 140 ÷ 7 = 20 Hope that helps
Find x. Round your answer to the nearest integer.
A. 20
B. 15
C. 12
D. 19
From SOHCAHTOA.
Cos37 = x/25
x= 25cos37
x=21.5 = 22.
When rounded to the nearest integer... 20
Option A is legit
Answer:
The correct answer is B. 15
Step-by-step explanation:
Ap3x Approved
Can you help me find the B
Answer:
32°+b = 180°
b = 180° - 32° = 148°
Points P and Q are connected to form a ray.
Answer:
pq
Step-by-step explanation:
What expression is equivalent to -2 (5x - 4) + 13x
What expression is equivalent to -2 (5x - 4) + 13x
=3x+8
pls pls pls pls help me i will give brainlist pls pls pls pls pls pls
When creating a coordinate plane, which direction does the y-axis lay?
Group of answer choices
diagnol
none of the above
vetical
horizontal
Which sentence is true about quadrilaterals?
Group of answer choices
All squares are rectangles.
All rectangles are rhombi.
All rectangles are squares.
All rhombi are squares.
What kind of triangle has exactly 2 congruent sides?
Group of answer choices
right
isosceles
scalene
equilateral
What is the name of the quadrilateral that has 1 and only 1 set of parallel sides?
Group of answer choices
trapezoid
square
rectangle
rhombus
Which of the following describes a triangle?
Group of answer choices
only 1 pair of parallel sides
no pairs of parallel sides
3 parallel sides
2 parallel sides
Answer:
#1 ) Vertical
#2) All rhombi are squares
#3) Isosceles
#4) Trapezoid
#5) No pairs of parallel sides
Hope this helps! Mark me brainliest if I'm right :)
A box contains 12 cereal bars. The empty box weighs 1.75 oz. The box and the bars weigh 18.55 oz. What is the weight of each cereal bar?
please provide the answer and the equation
Answer:
Each cereal bar is 1.4 ounces
Subtract the weight of the empty box from the 18.55 (because that's the weight of the box AND the cereal)
You are then left with 16.8 ounces, which is just the weight of the 12 cereal bars.
To find the weight of one cereal bar, assuming that all cereal bars weigh the same, you need to divide 16.8 by 12.
So that results in each cereal bar weighing 1.4 ounces
Solve for x. X^2 = 81-1
Answer:
x = 40
lol i thought your pfp was dabi for a second
Step-by-step explanation:
Answer:
x
=
10
,
−
8
Step-by-step explanation:
If point Cis between points A and B, then AC + __ = AB.
A. ABC
B. CA
C. BC
D. AB
When the sum of 3 times a number and 4 is increased by 6, the result is 2 times a number decreased by 14. Determine whether each step is a correct step for writing and solving this equation by selecting Yes or No. A Write the equation 3n + 4 + 6 = 2n – 14. Yes No B Write the equation 3(n + 4) + 6 = 2(n – 14). Yes No C Combine like terms. Yes No D Subtract 2n from each side. Yes No E Add 10 to each side. Yes No F Subtract 10 from each side. Yes No
Answer:
A. Yes
B. No
C. Yes
D. Yes
E. No
F. Yes
Step-by-step explanation:
A Write the equation 3n + 4 + 6 = 2n – 14. Yes
B Write the equation 3(n + 4) + 6 = 2(n – 14). No
C Combine like terms. Yes
D Subtract 2n from each side. Yes
E Add 10 to each side. No
F Subtract 10 from each side. Yes
Solution:
sum of 3 times a number and 4 is increased by 6, the result is 2 times a number decreased by 14
Let the number = n
{(3 * n) + 4} + 6 = (2 * n) - 14
3n + 4 + 6 = 2n - 14
3n + 10 = 2n - 14
3n + 10 - 2n = 2n - 14 - 2n
n + 10 = -14
Subtract 10 from each side
n + 10 - 10 = -14 - 10
n = -24
Answer: A. Yes B. No C.Yes D. Yes E. No F. Yes
Step-by-step explanation:
Given that f(x) = 7x^2 − 84 = 0, find x.
Answer:
x = 3.464
Step-by-step explanation:
7x^2 - 84 = 0
7x^2 = 84
x^2 = 12
x= 3.464