XY = Y Z
2x = 5x-12
- 3x = -12
How do I solve ?
Answer:
Step-by-step explanation:
Well basically if you cancelled out y from both sides. You will find out x=z
-3x= -12
x=4
Thus z=4
The external and the internal radius of a cylindrical pipe of length 50 cm are 3 cm and 2.6cm respectively. find the volume of material contained by the pipe
Answer:351.86 cc( approximately)
Step-by-step explanation:
The volume of the material = External volume - internal volume
= π3^2×50-π 2.6^2×50
=351.86
The volume of the material by the pipe is 351.86 cc.
What is the volume of a cylinder?The volume of a cylinder is equal to the product of the area of the circular base and the height of a cylinder. The volume of a cylinder is defined as the space occupied by the cylinder as the volume of any three-dimensional shape is the space occupied by it
V = πr²h
where 'r' is the radius of the base (circle) of the cylinder
'h' is the height of the cylinder
Given that the external and the internal radius of a cylindrical pipe are 3 cm and 2.6cm respectively
The length of the pipe is 50 cm
External volume = π(3)²×50 = 1413.71 cc
internal volume = π (2.6)²×50 = 1061.85
The volume of the material = External volume - Internal volume
The volume of the material = 1413.71 - 1061.85
The volume of the material = 351.86 cc
Learn more about the volume of cylinder here :
brainly.com/question/16134180
#SPJ2
What is the determinant of A={-2 2 -5
{4 -1 -2 }
{ 1 3 -5
Answer:
[tex]A' = -51[/tex]
Step-by-step explanation:
Given
[tex]A = \left[\begin{array}{ccc}-2&2&-5\\4&-1&-2\\1&3&-5\end{array}\right][/tex]
Required
Determine the determinant of A (A')
If
[tex]A = \left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right][/tex]
Then,
[tex]A' = a(e*i - f * h) - b(d * i - g * f) + c(d * h - e * g)[/tex]
So:
The determinant of [tex]A = \left[\begin{array}{ccc}-2&2&-5\\4&-1&-2\\1&3&-5\end{array}\right][/tex] is
[tex]A' = -2(-1 * -5 -(-2)*3) -2(4 * -5 -(-2) * 1) -5(4 * 3- (-1) * 1)[/tex]
[tex]A' = -2(5 +6) -2(-20 +2) -5(12 + 1)[/tex]
[tex]A' = -2(11) -2(-18) -5(13)[/tex]
[tex]A' = -22 +36 -65[/tex]
[tex]A' = -51[/tex]
Hence, the determinant is -51
PLEASE HELP ME!!!!!!!!!!!!!
Charlie saves $2 for every $9 he earns. Melody saves $4A for
every $12 she earns. Is Charlie's ratio of money saved to money
earned equivalent to Melody's ratio of money saved to money
earned? Explain.
Answer:
They are the same.
Step-by-step explanation:
Elsa took out a 4-year loan to buy a car at a 7.25% simple interest rate. If she has to pay $2,900 in interest. How much interest did she pay each 1 year?
Answer:
her life
Step-by-step explanation:
The Davidson family belongs to a food co-op with 8 other families.44 pounds of potatoes were purchased, and each family will receive 1 8 eight of potatoes. The Davidson family will receive Of the potatoes.
Answer:
see below
Step-by-step explanation:
Portion:
1/8 = 0.125
Each of the family will get:
44 pounds * 0.125 = 5.5 pounds of potatoes
**Five and a half pounds of potatoes.
If you were to be driving in a car at a high amount of speed and shot a gun out the window forward (towards the windshield forward). What would happen? Would the bullet keep going and eventually lose its power or would it come back and hit you? Use your own situations in the answers like what kind of speed, gun, caliber, wind speed whatever.
Answer:
If you shoot the bullet off the back of the car , the bullet will still be moving away from you and the gun at 1,000 mph, but now the speed of the train will subtract from the speed of the bullet. Relative to the ground, the bullet will not be moving at all, and it will drop straight to the ground.
Step-by-step explanation:
Step-by-step explanation:
If you shoot the bullet off the back of the train, the bullet will still be moving away from you and the gun at 1,000 mph, but now the speed of the train will subtract from the speed of the bullet. Relative to the ground, the bullet will not be moving at all, and it will drop straight to the ground.If you fire a gun into the air, the bullet will travel up to a mile high (depending on the angle of the shot and the power of the gun). Once it reaches its apogee, the bullet will fall. ... In crowded cities, however, the probability rises dramatically, and people get killed quite often by stray bullets
Plz Mark me as brainlist
Please anyone answer this one and get it right
Answer:
300
-100
Step-by-step explanation:
-50 + -250 = -300
-300 + x = 0
x = 300
-425 + 250 + 275 = 100
-100 + x = 0
x = -100
Answer:
6.) 300 7.) -100
Step-by-step explanation:
PLS PLS HELP! ASAP! Will mark brainliest!
Choose the correct simplification of the expression (d3)5.
1. d8
2. d15
3. d243
4. d
The Answer is A^15, a.k.a. A to the 15th power.
Step-by-step explanation:
First, apply the exponent rule. (a^b)^c = a^bc
You would get a^3*5 (* means times) (^ means to the power)
Second refine.
You would get d^15.
The answer is d^15.
To divide a number by 1,000, move the decimal point _____.
three places to the right
four places to the right
three places to the left
four places to the left
Answer:
three places to the right!
Step-by-step explanation:
Move the decimal point to the right as many places as there are zeros in the factor. Move the decimal point one step to the right (10 has one zero). Move the decimal point two steps to the right (100 has two zeros).
Hope this helps!
Determine which of the four postulates, if any, can be used to prove that the triangles are congruent.
50 points
Answer:
Option B
Step-by-step explanation:
Given:
AB ≅ CD
BC ≅ DA
To Prove:
ΔABD ≅ ΔCDB
Statements Reasons
1). AB ≅ CD 1). Given
2). BC ≅ DA 2). Given
3). BD ≅ BD 3). Reflexive property
4). ΔABD ≅ ΔCDB 4). SSS postulate of congruence
Therefore, Option (B) will be the correct option.
What is the best description of the relation in Item 2?
A. a function that is one-to-one
B. a function that is many-to-one
C. a function that is one-to-many
D. a relation that is not a function
Answer:
Step-by-step explanation:
a relation that is not a function
write a situation for 1/3 x 3/4 = 3/12
Answer:
1/3x3/4=3/12
3/4=3/12x3/1
=3/12x3/1x4/3
=3/4
The integer 4 is considered all of the following except _____.
a term
a constant
an expression
a variable
Answer:
variable
Step-by-step explanation:
variables are often expressed by letters
What are prime numbers? I have an exam and I need to know it.
Answer:
Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11. By contrast, numbers with more than 2 factors are call composite numbers.
Step-by-step explanation:
Answer:
2 3 5 7 11 13 17 19 23 29
Step-by2-step explanation:
Only being divided integrately by 1 and itself.
vary hard 12th grade work
A football team has a net yardage of -33 yards on a series of plays. The team needs a net yardage of 10
yards to get a first down. How many yards do they have to get on their next play to get a first down?
331
Answer:
they need 43 more yards
Step-by-step explanation:
Please help! Linear Equation word problems using the Ax + By = C form!
Answer:
1. T = 5x + 3y
2. 16 tomatoes.
Step-by-step explanation:
1. Determination of the linear expression.
Let x represent the number of pumpkin.
Let y represent the number of tomato.
Let T represent the total sales made from selling the pumpkins and tomatoes.
From the question,
1 pumpkin = $ 5
Hence,
x pumpkin = 5x
1 tomatoe = $ 3
Hence
y tomatoes = 3y
Therefore, the total sales (T) made from selling the pumpkin and tomatoes will be:
T = 5x + 3y
Where:
T is the total sales made from selling the pumpkin and tomatoes.
x is the number of pumpkin.
y is the number of tomatoe
2. Determination of the number of tomatoes sold.
Total cost (T) = $ 98
Number of pumpkin (x) = 10
Number of tomatoe (y) =?
T = 5x + 3y
98 = 5(10) + 3y
98 = 50 + 3y
Collect like terms
98 – 50 = 3y
48 = 3y
Divide both side by 3
y = 48/3
y = 16
Therefore, 16 tomatoes was sold.
3 1/2 miles in 1/2 hour
Answer:
? 7 miles an hour i guess
Please help ! And , give the right answer please .
Answer:
none of them are constant of proportinality.
Step-by-step explanation:
because if you divided each one. you do not get the same answer. if you did it would have to be either of the others, but in this case there is no constant of proportinality in that chart
Answer: D( not proportional)
Step-by-step explanation:
3*4= 12
6*4= 24
9*4=36
12*4=48
The two lasts x and y values are not proportionate because they don’t follow the same order of times 4
Que es un Monomi i un Polinomi?
Answer: Traducción Española
Polynomi es un término matemático que muestra la suma de monomios. Monomi es un problema matemático donde las variables y constantes pueden estar solas o multiplicarse.
Step-by-step explanation:
English translation:
Polynomi is a mathematical term that shows the sum of monomials. Monomi is a mathematical problem where variables and constants can stand alone or multiply.
A 14-ounce energy drink contains 42 teaspoons of sugar. How much sugar is one ounce of the drink?
Answer:
3 teaspoonsStep-by-step explanation:
14-ounce ⇒ 42 teaspoons of sugar14/14 ounce ⇒ 42/14 = 3 teaspoons of sugar1-ounce ⇒ 3 teaspoons of sugarO
If the sin 90° is 1, then the cos
(4 points
Answer:
What is the angle for cos, keep question clearly
If angle is 90° then answer is 0
What’s the answers. Please and thanks
Answer:
a) 500
b) 9.6 years
Step-by-step explanation:
Population of Ilamas
a) P = 500 e ^0.035t
Find P when t = 0
Solving for P
P = 500 e ^0.035 × 0
P = 500 × e ⁰
P = 500 × 1
P = 500
The population of the Ilamas when t = 0 is 500
b ) Find t when P = 700
P = 500 e ^0.035t
700 = 500 e ^0.035t
Divide both sides by 500
700/500 = 500 e ^0.035t/500
7/5 = e ^0.035t
1.4 = e ^0.035t
Take In of both sides
In 1.4 = In (e ^0.035t)
In 1.4 = 0.035t
t = In 1.4/0.035
t = 0.3364722366/0.035
t = 9.6134924749 years
t = Approximately to the nearest tenth of a year = 9.6 years
Consider the following equation: Log(yt )= 0.7 + 1.2log(st ) + 0.3log(st-1) + 0.2log(st-2) + 0.1log(st-3) What is the percentage increase in y given a permanent 1% increase in s? a. 1.2 b. 1.8 c. 2.5 d. 0.5
Answer:
a. 1.2
Step-by-step explanation:
From the given question, we will notice that the dependent variable, as well as the independent variable, are log-transformed in the model. Thus, a 1% increase in S will likely result in 1.2% increase in Y.
Aisha spends 15 1/6 hours doing homework in September. She spends 18 3/4 hours doing homework in October.
How much longer does Aisha spend doing homework in October than in September?
2 1/3 h
2 7/12h
3 1/3h
3 7/12h
Answer:
its 3 7/12
Step-by-step explanation:
.......hope it helps...... need a thanks
A wholesale club sells eggs by the dozen. write an eqaution that relates the total cost of eggs (y) to the number of dozens of eggs (x)
Dozen Cost ($)
6 21
8 28
10 35
14 49
Answer:
[tex]y = 3.5x[/tex]
Step-by-step explanation:
Required
Determine the equation
First, pick corresponding x and y values
[tex](x_1,y_1) = (6,21)[/tex]
[tex](x_2,y_2) = (14,49)[/tex]
Next, calculate the slope
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
This gives:
[tex]m = \frac{49 - 21}{14 - 6}[/tex]
[tex]m = \frac{28}{8}[/tex]
[tex]m = 3.5[/tex]
The equation is then calculated using:
[tex]y - y_1 = m(x - x_1)[/tex]
[tex]y - 21 = 3.5(x - 6)[/tex]
[tex]y - 21 = 3.5x - 21[/tex]
Add 21 to both sides
[tex]y - 21+21 = 3.5x - 21+21[/tex]
[tex]y = 3.5x[/tex]
A varsity boy's basketball team has ratio of seniors and juniors that is 7:4. If the team is made up of only juniors and seniors, what is the ratio of seniors to the total team members?
Answer:
7:11
Step-by-step explanation:
From the question
Seniors : Junior's
7:4
The sum of the proportion = Total team members = 7 + 4 = 11
Hence, the ratio of seniors to total team members =
Senior : Total team members
7 : 11
4t-8
select all that apply.
A: 4(t-2)
B: 4(t-8)
C: (t-2)4
D: 4(4t-2)
Answer:
A. is the answer.
Step-by-step explanation:
4t-8=4×(t-2)
4=0
t-2 add to both side of equation
t=2
Is (x-1) a factor of 2x3 - 15x2 + 22x + 15
Answer:
Step-by-step explanation:
If x - 1 is a factor of the cubic, then 1 should result in 0 when you put it in the cubic for x. Does it?
f(1) = 2(1)^3 - 15(1)^2 + 22(1) + 15
f(1) = 2 - 15 + 22 + 15
f(1)= 24.
No the result is not zero. So x - 1 is not a factor.
However there must be something that makes this cubic go to zero. The easiest way to find it is to graph it.
The numbers that do make this zero are -0.5, 3, 5
Which mean that the factors are (2x+1)(x-3)(x - 5)