Answer:
r≈14.01cm
Step-by-step explanation:
r=C
2π=88
2·π≈14.00563cm
Sorry if im wrong.
2x+4y=8
x+2y=4
Which of the following statements is true about the ordered pair (-2,3) is TRUE?
1. It is one of many solutions to the system
2. It is not a solution to either equation
3. It is the only solution to the system of equations
4. It is a solution to the first equation but not the second equation
Answer:
(-2, 3) is one of many solutions to the system
Step-by-step explanation:
Let's actually solve the system so that we can compare the result with the given pair (-2, 3):
Multiplying the second equation by -2 results in:
2x + 4y = 8
-2x - 4y = -8
We see that these equations are identical. Thus, there are infinitely many solutions.
1. is true: (-2, 3) is one of many solutions to the system
The other three possible answers are incorrect.
Find the area of square ABCD in which
diagonal BD=3√2cm
Answer:
area of square when given only diagonal is 1/2d×square so
1/2×3√2×3√2
=9 cm square
Step-by-step explanation:
Ayuda por favor, es de calculo diferencial Tema: optimización.
Se desea construir una caja sin tapa que contenga el máximo volumen a partir de una lámina cuadrada de 10 m de lado. Determina las dimensiones de la caja.
Answer:
dots dots tods jajtikalaj majc kala mo meroonnn anoo asa ka
01. Apenas uma das matrizes abaixo é, ao mesmo tempo, quadrada, diagonal e identidade. Identifique-a: a[0,1,0,1]. B[1,0,0,1]. C[1,3,0,1]. D[1,1,1,1]. E[0,1,1,0]]
Responder:
b)
1 0
0 1
Explicação passo a passo:
Das opções fornecidas:
Todas as opções atendem à condição de uma matriz quadrada, pois todas têm o mesmo número de linhas e colunas (2 * 2)
Para ter uma matriz diagonal, todas as entradas fora da diagonal principal serão Zero.
Por outro lado, a matriz de identidade é um tipo especial de matriz quadrada com uma ao longo da diagonal principal.
Indo por essas condições apenas a matriz (b); atende às três condições.
what are air and water called??
watir??
Answer:
aired water
Step-by-step explanation:
dunno sjdnsnwndnejeej hi
hello
PLEASE HELP PLEASE PLEASE
Answer:
1.52500 times 10 minus 5 m4
Step-by-step explanation:
Find the product: (6x+5)(2x−7)
plss help i’ll give brainliest thank you!
Answer:
36
Step-by-step explanation:
The absolute value of a number is how far away the number is from zero. The absolute value is ALWAYS positive.
Answer:
36.
Step-by-step explanation:
absolute value is always zero or positive
What is an equivalent form of log3 8?
log 8
log 3
log 8
Submit Answer
log 3
O 3 - log 8
O 8. log 3
Answer:
log 8
Step-by-step explanation:
Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
2
Step-by-step explanation:
The scale factor is 2 because every aspect of figure a doubled.
Answer:
2Step-by-step explanation:
Figure B is 2 times the size of figure A
You can tell by counting the squares at the lines
A wooden building has the shape of a
rectangular pyramid. The building's
base is 100 meters long and 50
meters wide. The height of each
triangular face is 40 meters. How
much wood was used to make the
entire building?
A 33,000 m²
B 13,000 m2
C 11,000 m2
D 6,000 m2
Answer:
B: 13000 m²
Step-by-step explanation:
To find how much wood is used, we will have to find the surface area of the wooden building.
Formula for surface area of a rectangular pyramid is;
SA = lw + l√(h² + w²/4) + w√(h² + l²/4)
We are given;
l = 100 m
w = 50 m
h = 40 m
Thus;
SA = (100 × 50) + 100√(40² + 50²/4) + 50√(40² + 100²/4)
SA = 5000 + 4717 + 3201.56
SA = 12918.56
Approximating to 2 significant figures gives;
SA = 13000 m²
Plz HELP!!!!!! NO LINKS!!!!!!!!!!!!!!!!!!!!
Answer:
A
Step-by-step explanation:
The dot at A is an outlier because it is far outlying the skewed pattern of the data, and is basically isolated from the rest of the data.
Please provide explanation
Answer:
27
Step-by-step explanation:
3^2*(2^3+4)
-------------------
2^2
Parentheses first
(2^3+4) = (8+4) = 12
Replace the parentheses
3^2*(12)
-------------------
2^2
Then Exponents
9*(12)
-------------------
4
Multiply
108
-----
4
Divide
27
8
6
5
3
2
DI
E
1
8 -7 -6 -6 -4 -3 -2 -1
12 13 4 5 6
-1
-2
O A. The two figures are congruent.
O B. The pre-image is in Quadrant I
O C. The orientation of the figure stayed the same.
O D. The transformation is a reflection
Answer:
answer is I'm guessing B.
1. −4n−8=4(−3n+2)
2. a−15=4a−3
what is the solution for 1 and what is the solution for 2
Answer:
n = 2 and a = - 4
Step-by-step explanation:
(1)
- 4n - 8 = 4(- 3n + 2) ← distribute parenthesis
- 4n - 8 = - 12n + 8 ( add 12n to both sides )
8n - 8 = 8 ( add 8 to both sides )
8n = 16 ( divide both sides by 8 )
n = 2
(2)
a - 15 = 4a - 3 ( subtract a from both sides )
- 15 = 3a - 3 ( add 3 to both sides )
- 12 = 3a ( divide both sides by 3 )
- 4 = a
Which of the following numbers below is an irrational number?
A.-9.5
B.1.75
C.π (pi)
Answer:
pi
a pie is equal to 22/7
do it is not a rational no
Maria’s phone bills were $95, $67, $43, and $115. What was the mean, or average, of her phone bills?
Answer:
the mean is $80
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
Mean of Phone Bills =
[tex] \frac{phone \: bills \: total}{number \: of \: phone \: bills} \\ = \frac{95 + 67 + 43 + 115}{4} \\ = \frac{320}{4} \\ = 80[/tex]
HELP
Puzzle Four
Answer the following problems and then find the sum of all your
answers to unlock puzzle four.
1550
1
3
4
2)
3)
m21
mz 4
mus
m27
6
7
5)
mzCDE
5x + 15
B-42
6)
MZABC
110
3
А
O
7)
MZMNO
1151
M
Code:
the Midwest 2009
Answer:
1) m<1 = 25
2) m<4 = 155
3) m< 5 = 25
4) m<7 = 25
5) 110
6) 30.5
7) 74
Step-by-step explanation:
1)
x + 155 = 180
x = 25
2)
<4 = 155 because of vertical angle thm
3)
<5 = 25 (congruent to <1) b/c of corresponding angles thm
4)
<7 = <5 (25) because of vertical angles thm
5)
5x + 15 = 8x - 42
-3x = -57
x = 19
5(x) + 15
5(19) + 15 = 110
6)
180 - 110 = 70
3x + x + 4 + 70 = 180
4x + 74 = 180
4x = 106
x = 26.5
x+ 4 = 30.5
7)
180 - 115 = 65
x + 4 + 2x + 65 = 180
3x + 69 = 180
3x = 111
x = 37
2x = 74
Just need some help pls! : )
Answer:
B. 3
Step-by-step explanation:
A Florida juice company completes the preparation of its products by sterilizing, filling, and labeling bottles. Each case of orange juice requires 9 minutes for sterilizing, 6 minutes for filling, and 1 minute for labeling. Each case of grapefruit requires 4 minutes for filling, 10 minutes for sterilizing, and 2 minutes for labeling. Each case of tomato juice requires 1 minute for labeling, 4 minutes for filling, and 12 minutes for sterilizing. The company runs the sterilizing machine for 398 minutes, the filling machine for 164 minutes, and the labeling machine for 58 minutes, how many cases of each type of juice are prepared?
1. Carefully identify your variables and write the equations that need to be solved.
2. Solve the system by the Gauss-Jordan elimination method.
Answer:
1.
R= Number of orange juice cases.
G = Number of greapefruit juice cases.
T = Number of tomato juice cases.
Equations:
9R+10G+12T=398
6R+4G+4T=164
R+2G+T=58
2.
R=6
G=20
T=12
Step-by-step explanation:
1.
The problem is talking about three types of products and it wants us to find how many of each the factory prepares. Since this is the data we need to know, then we set them to be our variables:
R= Number of orange juice cases.
G = Number of greapefruit juice cases.
T = Number of tomato juice cases.
Next, we can use the provided information to build our equations. First, we start with the Sterilizing machine equation: 9 minutes for orange juice, 10 minutes for grape juice and 12 minutes for tomato juice. So we use the sterilizing values for each of the product, to build our first equation:
9R+10G+12T=398
next, we build the filling machine equation, so like on the previous equation, we use the provided data for filling to build the second equation:
6R+4G+4T=164
and finally we build the labeling machine equation so we get:
R+2G+T=58
so we need to solve the following system of equations:
9R+10G+12T=398
6R+4G+4T=164
R+2G+T=58
2.
The very first thing we need to do in order to solve this problem by using the Gauss-Jordan elimination method is to build our matrix based on the system of equations we got on the previous part.
[tex]\left[\begin{array}{cccc}9&10&12&398\\6&4&4&164\\1&2&1&58\\\end{array}\right][/tex]
The idea is to end up with an identity matrix on the first three columns, that will directly give us the answer to the system of equations. So we can start by dividing the first row into 9: [tex]\frac{R_{1}}{9}[/tex] So we get:
[tex]\left[\begin{array}{cccc}1&\frac{10}{9}&\frac{4}{3}&\frac{398}{9}\\6&4&4&164\\1&2&1&58\\\end{array}\right][/tex]
Next, we can multiply the first row by -6 and add it to the second row to get the new second row. [tex]-6R_{1}+R_{2}[/tex]
so we get:
-6 -20/3 -8 -796/3
6 4 4 164
---------------------------------
0 -8/3 -4 -304/3
our matrix now looks like this:
[tex]\left[\begin{array}{cccc}1&\frac{10}{9}&\frac{4}{3}&\frac{398}{9}\\0&-\frac{8}{3}&-4&-\frac{304}{3}\\1&2&1&58\\\end{array}\right][/tex]
Next, we can subtract R3 from R1 so we get:
1 10/9 4/3 398/9
-1 -2 -1 -58
------------------------------
0 -8/9 1/3 -124/9
So the matrix looks like this now:
[tex]\left[\begin{array}{cccc}1&\frac{10}{9}&\frac{4}{3}&\frac{398}{9}\\0&-\frac{8}{3}&-4&-\frac{304}{3}\\0&-\frac{8}{9}&\frac{1}{3}&-\frac{124}{9}\\\end{array}\right][/tex]
Now, we can multiply the second row by -3/8 so we get:
[tex]\left[\begin{array}{cccc}1&\frac{10}{9}&\frac{4}{3}&\frac{398}{9}\\0&1&\frac{3}{2}&38\\0&-\frac{8}{9}&\frac{1}{3}&-\frac{124}{9}\\\end{array}\right][/tex]
Now, we can subtract: [tex]R_{1}-\frac{10}{9}R_{2}[/tex] so we get:
0 -10/9 -5/3 -380/9
1 10/9 4/3 398/9
------------------------------
1 0 -1/3 2
So the matrix will now look like this:
[tex]\left[\begin{array}{cccc}1&0&-\frac{1}{3}&2\\0&1&\frac{3}{2}&38\\0&-\frac{8}{9}&\frac{1}{3}&-\frac{124}{9}\\\end{array}\right][/tex]
Next, we do the following operation: [tex]R_{3}+\frac{8}{9}R_{2}[/tex]
0 8/9 4/3 304/9
0 -8/9 1/3 -124/9
------------------------------
0 0 5/3 20
So our matrix will now look like this:
[tex]\left[\begin{array}{cccc}1&0&-\frac{1}{3}&2\\0&1&\frac{3}{2}&38\\0&0&\frac{5}{3}&20\\\end{array}\right][/tex]
We next multiply R3 by 3/5 so we get:
[tex]\left[\begin{array}{cccc}1&0&-\frac{1}{3}&2\\0&1&\frac{3}{2}&38\\0&0&1&12\\\end{array}\right][/tex]
and now we do: [tex]\frac{R_{3}}{3}+R_{1}[/tex]
0 0 1/3 4
1 0 -1/3 2
------------------------------
1 0 0 6
So our matrix will now look like this:
[tex]\left[\begin{array}{cccc}1&0&0&6\\0&1&\frac{3}{2}&38\\0&0&1&12\\\end{array}\right][/tex]
and now we do the following: [tex]R_{2}-\frac{3}{2}R_{3}[/tex]
so we get:
0 0 -3/2 -18
0 1 3/2 38
------------------------------
0 1 0 20
for our final matrix to be:
[tex]\left[\begin{array}{cccc}1&0&0&6\\0&1&0&20\\0&0&1&12\\\end{array}\right][/tex]
so now we can retrieve the corresponding answers:
R=6
G=20
T=12
25 The library has an empty bookcase with 4 shelves. Each shelf can hold 23 chapter þooks. If the library has 117 new chapter books, how many will not fit on the bookcase?.
Answer:
25 chapter books
Step-by-step explanation:
117 - (23×4)
[23×4=92]
.°. 117 - 92 = 25
Step-by-step explanation:
Total Shelf Capacity = Capacity per shelf x Number of Shelves
= 23 x 4
= 92
Number of new books to be fit in = 117
Amount of books Overflow = Number of books to be fit in - Total Shelf Capacity
= 117 - 92
= 25
Find the value of x.
Answer:
x=90°
Step-by-step explanation:
The inside angles in a triangle always add up to 180°.
So:
53°+37°=90°
180°-90°=90°
x=90°
Answer:
see below
Step-by-step explanation:
since the sum of angles in a triangle is 180 degrees
x + 53 + 37 = 180
x = 180 - 53 - 37
x = 90 degrees
hope this helps, please mark it brainliest
Describe the effects of translating abc abc
Answer:
If you meant describe the effects of translating Δ ABC to Δ A'B'C'.
D. Each x - coordinate decreased by 6 and each y - coordinate increased by
Use the coordinate A as an example it moves to the right 6 times(x increasing) and down 3 times (y decreasing)
How do I found the volume of a rectangular prism and a traingular prism?
Answer:
volume of rectangular prism is lxwxh volume of triangular prism is bxh÷2
Question 17(5 points)
Find the missing side lengths. Leave your answers as
radicals in simplest form.
60°
2V3
ZZ
A) u = 4, v= 2V3
C) u=2V2, v=2V3
B) u=2V2, v= 2
D) u = 4, y = 2
Answer:
D) u=4 , v=2
Step-by-step explanation:
This is as 60 30 90 triangle.
One leg is x
Second is x sqrt 3
The hypotenuse is x(2)
So hope that helps
What is a energy
[tex]51 + (19 + 46) = [/tex]
Answer:energy is such thing which cannot be created nor be destroyed but can be change from one form to another.
51+(19+46)=51+65=116 is your answer
Identify the transformation from figure A to figure B in the image below.
glide reflection
reflection
translation
dilation
Answer:
Reflection
Step-by-step explanation:
Here, we want to get the transformation that yielded figure B from figure A
Looking at the plot, we can see that we have the origin as the center of transformation
The kind of transformation however is reflection
The shape A was reflected about the origin or the point (0,0) to give shape B
Answer:
glide reflection
Step-by-step explanation:
got it right on a quiz
What is the value of the expression below when y=5
4y2-7y-6
Answer and Step-by-step explanation:
Let's plug 5 in for y.
[tex]4(5)^{2} - 7(5) - 6\\\\\\\\4(25) - 35 - 6\\\\\\100 - 35 - 6 = 59\\\\\\[/tex]
The value of [tex]4y^{2} - 7y - 6[/tex] when y is equal to 5 is 59.
#teamtrees #PAW (Plant And Water)
Answer:
59
Step-by-step explanation:
You can just replace y with its value which is 5.
4y² - 7y - 6 = 4(5²) - 7(5) - 6
= 4 × 25 - 35 - 6
= 100 - 35 - 6
= 59
Plz help asap with explanation and will get the brilliant
Answer:
(-2,3)
Step-by-step explanation:
1 point
14. consider the polynomial
p(x) = 2x“ – (m + 3)x – 1.
If p(x) is divisible by x-2 then m=
Answer:
If [tex]p(x)[/tex] is divisible by [tex]x-2[/tex], then [tex]m = \frac{1}{2}[/tex].
Step-by-step explanation:
Let [tex]p(x) = 2\cdot x^{2}-(m+3)\cdot x - 1[/tex], if [tex]p(x)[/tex] is divisible by [tex]x-2[/tex], then [tex]p(2) = 0[/tex]. That is:
[tex]2\cdot 2^{2}-(m+3)\cdot (2)-1 = 0[/tex]
[tex]8 - 2\cdot m -6 -1 = 0[/tex]
[tex]1 -2\cdot m = 0[/tex]
[tex]2\cdot m = 1[/tex]
[tex]m = \frac{1}{2}[/tex]
If [tex]p(x)[/tex] is divisible by [tex]x-2[/tex], then [tex]m = \frac{1}{2}[/tex].