Answer: 72 inches
Step-by-step explanation:
You are given that equilateral triangle BFC is cut out of square ABCD, since it is an equilateral triangle, that is all sides are equal to each other, we can therefore find the side of a triangle.
Given that the perimeter of square ABCD was 48 inches.
Perimeter of a square = 4L
Substitute 48 into the formula
48 = 4L
L = 48/4 = 12 inches
That means each length = 12 inch
Perimeter P of the shaded figure ABFCDE will be
P = AB + BF + FC + CD + DE + EA
P = 12 + 12 + 12 + 12 + 12 + 12
P = 72 inches
Therefore, the perimeter of ABFCDE is 72 inches.
Answer:
72
Step-by-step explanation:
We know that each side of a square is equal so if the perimeter is 48 then 48/4 = 12 and knowing the bottom of that triangle cut out is 12 we can solve each side 12 since its a equilateral triangle.
12*6= 72 = answer
29 If we round to 1 significant figure, sound travels at a speed of approximately 0.3 kilometers per second, while light travels at a speed of approximately 300 000 kilometers per second. 29a Express the speed of sound in kilometers per second in scientific notation.
Answer:
3 x 10^-1 km per second.
Step-by-step explanation:
A scientific notation includes c x 10^n. c is a number between 1-9, and n is the nth power of 10.
If we move the decimal in 0.3 to the right by 1 place, we can get "c", which will be 3. Since we have moved the decimal to the right, each place moved right counts as -1 for n.
So, the answer is 3 x 10^-1 km per second.
Write the equation of the parabola in vertex form. The vertex is
(-3,-4) and the parabola passes through The point (-1,0).
Answer:
y + 4 = (x - h)^2
Step-by-step explanation:
"vertex form" is y - k = a(x - h)^2. Here, the vertex (h, k) is (-3, -4), and so we have:
y + 4 = a(x + 3)^2. To find the coefficient a, substitute -1 for x and 0 for y:
0 + 4 = a(-1 + 3)^2, or
4 = a(2^2). Thus, a = 1, and the desired equation is
y + 4 = (x - h)^2
what is the rational exponent from of this expression
Answer:
Step-by-step explanation:
√(c^5) is equivalent to c^(5/2) (the last answer choice).
Algebra 1 help please
Solve 19a + 11b = 12a + 15 for a.
Select one:
a. 77 – 11b)
b. (15 + 11b 1/7
c. 7 ( 15 – 11b )
d. (15 – 11b)
Answer:
a = (15-11b)/7
Step-by-step explanation:
19a + 11b = 12a + 15
Subtract 12a from each side
19a-12a + 11b = 12a-12a + 15
7a +11b = 15
Subtract 11b from each side
7a+11b-11b = 15 -11b
7a = 15-11b
Divide by 7
7a/7 = (15-11b)/7
a = (15-11b)/7
Answer:
A = (15-11b)/7
Step-by-step explanation:
please help.
create five word expressions that will need to be translated into an algebraic expression also provide a value for the variable mentioned in the expression.
Answer:
The answers are as follows.
Step-by-step explanation:
Expressions:
Product of 2 and x is 146 added with a number gives 14The product of six and a gives 1212 divided by y gives 26 subtract with a number and get 12Computation:
Product of 2 and x is 14
2(x) = 14
x = 7
6 added with a number gives 14
6+x = 14
x = 8
The product of six and a gives 12
6(a) = 12
a = 2
12 divided by y gives 2
12 / y = 2
y = 6
6 subtract from a number and get 12
x - 6 = 14
x = 20
The first entry of the resulting matrix is:
Answer:
[tex]\boxed{1}[/tex]
Step-by-step explanation:
[tex]\left[\begin{array}{ccc}1 \times 1&2 \times 1\\3 \times 5&4 \times 5 \end{array}\right][/tex]
I made a square frame for my favorite bird picture from four wooden pieces. Each piece is a rectangle with a perimeter of 24 inches. What is the area and perimeter of the picture and frame, together?
I don't mind an undetailed explanation c:
Answer:
The perimeter of the picture frame is 38.4 in.
The area of the picture frame is 92.6 in.².
Step-by-step explanation:
The given information are;
Perimeter of side piece of picture frame = 24 inches
Length of side piece = L
Width of side piece = W
Perimeter of side piece = 2 × (L + W) = 24
∴ L + W = 24/2 = 12 inches
Dimension of picture frame = Square frame with side length s
Number of side piece in picture frame = 4
Given that the length L > the width W, we have
Side length of wooden frame = L
Also, where the side piece are placed side by side, we have;
Side length of wooden frame = 4 × W
Therefore;
4 × W = L
Which gives
L + W = 12 inches
4 × W + W = 12 inches
W×(4 + 1) = 5·W = 12 inches
W = 12/5 = 2.4 inches
L = 4 × W = 4 × 12/5
L = 48/5 = 9.6 inches Side length of wooden frame, s
The perimeter of the picture frame = 4 × s = 4 × 9.6 = 38.4 in.
The area of the picture frame = s × s = 9.6 × 9.6 = 92.6 in.².
How many different 2-digit numbers are there with the following property: the tenth digit is greater than the units digit?
Step-by-step explanation:
2 digit numbers are beetween 10 and 99
We are looking for numbers in wich the unit digits is less than the ten digit
we can make notice something about this numbers
1020304050607080900 is the smallest postive integer so all these numbers satisfy the condition
so we have now 9 numbers
here is another remark :
0 < 1 < 2 < 3 <4 <5 <6 < 7 < 8 < 9numbers from 91 to 99 satisfy the condition except 99
so here are 8 other numbers
numbers from 80 to 89 satisfy the condition except 88 and 89
so here are 7 other numbers
the numbers that satisfy the keeps decreasing by 1 each time
8 (91⇒98) 7 81⇒88 + 806 71⇒76 + 705 61⇒ 65 +604 51⇒ 54 + 50 3 41⇒ 43 + 402 31⇒32 + 301 21 + 20so the total number of numbers that satisfy the condition
9+8+7+6+5+4+3+2+1= 45
need help refer to picture
Answer:
-6x + 54y + 4.83 xy + 9.32
Step-by-step explanation:
line up like terms next to each other:
7x - 13 x + 18y + 36y + 4.83xy + 9.32
solve:
-6x + 54y + 4.83xy + 9.32
solve for linear equations y=--2x+18 4y-x+9=0
Answer:
I hope it will help uh......
What is the solution to the system of equations below? y = negative one-third x + 6 and x = –6
Answer:2
26x + y = 23 → y = 23 – 6x.
7x + y = 25 → 7x + (23 – 6x) = 25 → x + 23 = 25 → x = 2
3^2x3^5x3^7 In index form
Answer:
[tex]3^{14}[/tex]
Step-by-step explanation:
Given the expression: [tex]3^2\times 3^5\times 3^7[/tex]
To simplify the expression, we apply the addition law of indices.
Given two index terms with the same base, [tex]a^x$ and a^y[/tex], their product:
[tex]a^x \times a^y=a^{x+y}[/tex]
Therefore, since we have the number 3 as the same base in all the terms:
[tex]3^2\times 3^5\times 3^7 =3^{2+5+7}\\\\=3^{14}[/tex]
Which value of x makes this equation true? 41 + x = 73 Math item stem image CLEAR CHECK 9 32 73 114
Answer:
32
Step-by-step explanation:
41+x=73
x=73-41
x=32
How do I do this problem? I know basic trig but I can't figure out how i do this. Hopefully you can help soon, I need this quick.
Answer:
3
Step-by-step explanation:
because its equal to the other side that says 6
x + 3 = 6
x = 6 - 3
x = 3
hope this is correct
A lion can eat a sheep in 2 hours, a wolf can eat a sheep in 3 hours, and a dog can eat the sheep in 6 hours. How long would it take a lion, a wolf, and a dog all together to eat the poor sheep?
Answer:
1 hour
Step-by-step explanation:
The lion's speed is 1 sheep / 2 hours = ½ sheep/hour.
The wolf's speed is 1 sheep / 3 hours = ⅓ sheep/hour.
The dog's speed is 1 sheep / 6 hours = ⅙ sheep/hour.
Their combined speed is ½ + ⅓ + ⅙ = 1 sheep/hour.
So working together, it will take them 1 hour to eat 1 sheep.
Answer:
1 hour
Step-by-step explanation:
1/2 + 1/3 + 1/6 = 1
8. After a certain transformation is applied to point (x,y) is moved to (y,-x).
Name the transformation.
Rotation
Translation
Reflection
Dilation
Answer:
Rotation
Step-by-step explanation:
when you rotate a point it swaps the numarical values x⇄y as well as in some cases it changes its the symbol from negative to positive depending on the quadrant, in this case, it started in quadrant one and ended in quadrant three.
If a function f has an inverse and f(1) = -3, then f-1(-3) = 1.
A) True
B) False
Answer:
A) True
Step-by-step explanation:
The ordered pair for the first expression is ...
y = f(x)
-3 = f(1)
(x, y) = (1, -3)
The ordered pair for the second expression is ...
y = f^-1(x)
1 = f^-1(-3)
(x, y) = (-3, 1)
The second ordered pair is the reverse of the first, so represents a point described by the inverse function. The statement is True.
If x2 + 6x + 8 = 0 , then x could equal which of the following?
Answer:
x = -4 , -2
Step-by-step explanation:
I am assuming "x2" is x^2. If the equation is x^2 + 6x + 8 = 0, then you first have to factor the equation x^2 + 6 + 8.
In order to do that, you would have to find the multiples of 1 (from x) and 8.
We can see that 1 * 1 is 1, so that is the only pair that would work for the problem. 4 * 2 is 8, but 8 * 1 is also 8. So, which set of numbers do we have to choose? It's actually really simple. You multiply the first set of numbers (1 and 1) with one of the sets from 8 ( 4 and 2 or 8 and 1). Then when you are finished multiplying them together, you add them together to see if they equal to the number in the middle (6x). So 1(x) * 4 is 4x, and 1(x) * 2 is 2x, and when we add the numbers together, we get 6x, which is the middle number, so therefore, 4 and 2 is the correct set of numbers, not 8 and 1, because if we multiply and add those together, we get 7x, not 6x.
After doing that, you have to put them like this:
(x + 4)(x + 2)
This is so when you multiply them together, you get the starting equation. But we have to solve for x. In order to do that, we have to plug that into the equation we started off with.
(x + 4)(x + 2)=0
Now we have to make x + 4 and x + 2 equal to 0, so x is -4 and -2. There are two correct answers. Hope this helps :)
Answer:
x is -2 and -4
You went on three hikes. On each hike, you saw a different number of animals: Hike Length of hike (km) Number of animals seen Rivers Edge 3 8 Wooded Marsh 8 20 Canyon Creek 15 35 Order your hikes by number of animals seen per kilometer from least to greatest.
Answer:
The hikes ordered from the least to the greatest number of animals seen per kilometre
Canyon Creek < Wooded Marsh < Rivers Edge
2.33 < 2.50 < 2.67
Step-by-step explanation:
Question Properly written
You went on three hikes. On each hike, you saw a different number of animals:
Hike | Length of hike (km) | Number of animals seen
Rivers Edge | 3 | 8
Wooded Marsh | 8 | 20
Canyon Creek | 15 | 35
Order your hikes by number of animals seen per kilometer from least to greatest.
Solution
Number of animals seen per kilometre = (Number of animals seen) ÷ (Length of hike in kilometres)
Rivers Edge
Number of animals seen = 8
Length of hike in kilometres = 3
Number of animals seen per kilometre = (8/3) = 2.67
Wooded Marsh
Number of animals seen = 20
Length of hike in kilometres = 8
Number of animals seen per kilometre = (20/8) = 2.50
Canyon Creek
Number of animals seen = 35
Length of hike in kilometres = 15
Number of animals seen per kilometre = (35/15) = 2.33
Ordering the hikes by number of animals seen per kilometer from least to greatest.
2.33 < 2.50 < 2.67
Canyon Creek < Wooded Marsh < Rivers Edge
Hope this Helps!!!
Which statement is true about the equation 4.5z = 4.5z – 4.25 + 6.25? (1 point) It has no solution. It has one solution. It has two solutions. It has infinitely many solutions.
Answer:
nun
Step-by-step explanation:
1. Flight 202's arrival time is normally distributed with a mean arrival time of 4:30
p.m. and a standard deviation of 15 minutes. Find the probability that a randomly
arrival time will be after 4:45 p.m.
2. Using the data from question #1, what is the probability that a randomly
selected flight will arrive between 4:15 pm and 2:00 pm? *
3. Using the data from question #1, what is the probability of a randomly selected
flight arriving AFTER 5:00 pm? *
someone pls help
Answer:
Step-by-step explanation:
1) Let the random time variable, X = 45min; mean, ∪ = 30min; standard deviation, α = 15min
By comparing P(0 ≤ Z ≤ 30)
P(Z ≤ X - ∪/α) = P(Z ≤ 45 - 30/15) = P( Z ≤ 1)
Using Table
P(0 ≤ Z ≤ 1) = 0.3413
P(Z > 1) = (0.5 - 0.3413) = 0.1537
∴ P(Z > 45) = 0.1537
2) By compering (0 ≤ Z ≤ 15) ( that is 4:15pm)
P(Z ≤ 15 - 30/15) = P(Z ≤ -1)
Using Table
P(-1 ≤ Z ≤ 0) = 0.3413
P(Z < 1) = (0.5 - 0.3413) = 0.1587
∴ P(Z < 15) = 0.1587
3) By comparing P(0 ≤ Z ≤ 60) (that is for 5:00pm)
P(Z ≤ 60 - 30/15) = P(Z ≤ 2)
Using Table
P(0 ≤ Z ≤ 1) = 0.4772
P(Z > 1) = (0.5 - 0.4772) = 0.0228
∴ P(Z > 60) = 0.0228
795.800.913.789
seven hundred ninety-five billions eight hundred sixty millions, nine hundred thirteen thousands, seven hundred
eighty-nine
seven hundred and ninety-five billion, eight hundred and sixty million, nine hundred and thirteen thousand, seven
hundred and eighty-nine
seven hundred ninety-five billion eight hundred sixty million nine hundred thirteen thousand, seven hundred eighty.
nine
seven hundred ninety-five billion eight hundred six million nine hundred thirteen thousand, seven hundred eighty-nine
Submit
Reset
Answer:
seven hundred ninety-five billion eight hundred million nine hundred thirteen thousand seven hundred eighty-nine
what is 149 scaled down by a factor of 1/10
Answer:
14.9
Step-by-step explanation:
Given
149
Required
Scale factor of ⅒
The result of a scale factor is the product of an expression by its scale factor.
The result of 149 scale factor of 10 is the product of 149 by 10
In other words;
149 * ⅒
= (149 * 1)/10
= (149)/10
Remove bracket
= 149/10
= 14.9
Hence, 149 scaled down by a factor of ⅒ is 14.9
Solve the system of equations using substitution. Write your answer as an ordered triple in the form (x, y, z).
X+ y + z = 2
4x + 5y + z = 12
2x = -4
Answer:
(x, y, z) = (-2, 4, 0)
Step-by-step explanation:
Solving the last equation first, we have ...
2x = -4
x = -2 . . . . . divide by 2
__
Putting this in the first equation, we can write an expression for z:
-2 +y +z = 2
z = 4 -y . . . . . . . add 2-y
__
Putting this in the second equation, we have ...
4(-2) +5y +(4 -y) = 12
-4 +4y = 12
-1 + y = 3 . . . . . divide by 4
y = 4 . . . . . . . . add 1
__
Substituting this into the equation for z, we have ...
z = 4 - 4 = 0
The solution is (x, y, z) = (-2, 4, 0).
Answer:
X+y+z=2 equation 1
4x + 5y + z = 12 equation 2
2x = -4 equation 3
Step-by-step explanation:
step 1 :
from equation 3 : 2x = -4
x= -4/2 = -2
step 2:
sub value x = -2 in equation 1
y + z = 4 _______ equation 4
step 3:
sub value of x in equation 3
5y + z = 20 _________ equation 4
solve equation 3 and 4
y + z = 4
5y + z = 20 sign change
__(-)_________
-4y = -16
__________
y = 4
substitute x = -2 & y = 4 in equation 1
z = 0
Hence x = -2 , y = 4 & z = 0
What is the volume of the cylinder below?
1
1
4
5
A. 4577 units 3
B. 90 units
C. 367 units 3
D. 727 units 3
Answer:
36pi Units^3
Step-by-step explanation:
Slanted (oblique) cylinders have the same volume as standard (right) cylinders.
V=pi r-squared h
V=pix3x3x4
V=36 pi Units cubed
Answer:
The correct answer is 36 pi units^3
Step-by-step explanation:
A
85°
O A. 45
o
E
O B. 32.5
B
C. 52.5
D. 65
SUBMIT
Answer:
A
Step-by-step explanation:
The formula for external arc measures ia 1/2(x-y) where x is 85 and y is the smaller arc. Knowing the actual angle measurement, we can see that we have 1/2(85 - y) = 20; y = 45. Answer A is your answer.
1. How many tiles whose length and breadth are 13 cm and 7 cm respectively are needed to cover a rectangular region whose length and breadth are 520 cm and 140 cm? 2. The length of a rectangular wooden board is thrice its width. If the width of the board is 120 cm, find the cost of framing it at the rate of $5 for 20 cm. 3. From a circular sheet of a radius 5 cm, a circle of radius 3 cm is removed. Find the area of the remaining sheet is given that π = 22 /7.
Answer:
1. 600 tiles
2. $120
3. 50.3cm2
Step-by-step explanation:
1. 520 x 140/ 13 x 7
600 tiles
2. Since length is 3 x width, length is 360.
20=5
360= 360/20= 18= 18 x 5= 90
20=5
120= 120/20= 6= 6 x 5= 30
90 + 30= 120= $120
3. 22/7 x 5 x 5= 78.5
22/7 x 3 x 3= 28.2
78.5-28.2= 50.3= 50.3cm2
a food truck did a daily survey of customers to find their food preferences. The data is partially entered in the frequency table. complete the table to analyze the data and anser the questions
Answer:
That right, no picture, no answer
Step-by-step explanation:
PLEASE HELP!! is it
A) 4 cm
B) 64 cm
C) 25cm
D) 160 cm
Answer: The Awnser to this equation is C, AE is equal to 25
Answer:
C. 25cm
Step-by-step explanation:
So D and B are too long even longer than AD so that brings us to A or C.
A is too small.
Thus, by logic and reasoning C. 25cm is the correct answer.
help pls!!!! Peter is at a lumber yard. He gets 2 free boxes of nails for every 10 boards he buys. Write an expression for the number of boxes of nails Peter will get if he buys n boards. If each box has 100 nails, explain how to write an expression to find how many nails Peter will have if he purchases 90 boards.
Answer:
x=1/5n
a=1/5(90)*100
The algebraic expression n/10, where n is the number of boards, represents the number of times he gets 2 free boxes of nails. So 2(n/10), or n/5, is the number of boxes, and 100(n/5), or 20n, is the number of nails. Substituting 90 in for n, Peter will get 1,800 nails.