Answer:
(- 3, 5 )
Step-by-step explanation:
Under a counterclockwise rotation about the origin of 90°
a point (x, y ) → (- y, x ) , thus
(5, 3 ) → (- 3, 5 )
Suppose y varies inversely with x, and y = 3 when x = 1/3. What is the inverse variation equation that relates x and y ?
Answer:
y = [tex]\frac{1}{x}[/tex]
Step-by-step explanation:
Given that y varies inversely with x then the equation relating them is
y = [tex]\frac{k}{x}[/tex] ← k is the constant of variation
To find k use the condition y = 3 when x = [tex]\frac{1}{3}[/tex] , then
3 = [tex]\frac{k}{\frac{1}{3} }[/tex] ( multiply both sides by [tex]\frac{1}{3}[/tex] )
3 × [tex]\frac{1}{3}[/tex] = k
1 = k
y = [tex]\frac{1}{x}[/tex] ← equation of variation
3(y+3)+7(2y-8)-(y-1)=0
Answer:
We have this equation:
[tex]3(y+3)+7(2y-8)-(y-1)=0[/tex]
First, we do the parenthesis:
[tex]3y+9+14y-56-(y-1)=0\\[/tex]
When there is a minus (-) in front of a parenthesis, all signs change inside it:
[tex]3y+9+14y-56-y+1)=0\\[/tex]
Now we operate:
[tex]16y-46=0[/tex]
We add 46 on both sides:
[tex]16y - 46 + 46 = 0 +46[/tex]
[tex]16y = 46[/tex]
And divide 16 on both sides:
[tex]\frac{16y}{16}=\frac{46}{16}[/tex]
[tex]\bol{x = \frac{46}{16}}[/tex] = [tex]\frac{23}{8}[/tex]
Answer:
Step-by-step explanation:
3(y+3)+7(2y-8)-(y-1)=0
3y + 9 + 14y - 56 - y + 1 = 0
16y - 46 = 0
16y - 46 + 46 = 0 + 46
16y = 46
16y/16 = 46/16
y = 23/8
pam opened a bank account with a $200 deposit the acount had a simple intrest rate of 4.6% her most recent bank statement showed a balence of $328.80 if she made no deposits or withdrawels how long ago was the bank acount opened
Plz explain
Answer:
14 years
Step-by-step explanation:
To find the answer you have to use the formula to calculate time:
t=(1/r)(A/P-1), where:
t=time
r=rate of interest=4.6%
A=accrued amount=$328.80
P=principal amount=$200
t=(1/0.046)*(328.80/200-1)
t=21.74*(0.644)
t=14
According to this, the answer is that she opened the bank account 14 years ago.
Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation 3X -5 equals negative 2X +10
Answer:
[tex]5x= 15[/tex]
Step-by-step explanation:
Given
[tex]3x - 5 = -2x +10[/tex]
Required
Write the variables and constants on different sides
[tex]3x - 5 = -2x +10[/tex]
Add 2x to both sides
[tex]2x + 3x - 5 =2x -2x +10[/tex]
[tex]5x - 5 =10[/tex]
Add 5 to both sides
[tex]5x - 5 + 5 = 10 + 5[/tex]
[tex]5x= 10 + 5[/tex]
[tex]5x= 15[/tex]
Hence, the equation is
[tex]5x= 15[/tex]
Solving further [divide both sides by 5]
[tex]x = 3[/tex]
I think it is -5=x
Step-by-step explanation:
a. where does the parentheses go in 8+9÷3×6-5 to make a value of 11
b. where does the parentheses go in 5+3-8÷4-2 to make a total of 4
Answer:
8+9÷3×(6-5) 5+3-8÷4-2Step-by-step explanation:
[tex]8+9\div3\times6-5\\= 8+9\div \:3\times \left(6-5\right)\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(6-5\right)\::\quad 1\\=8+9\div \:3\times \:1\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:9\div \:3\times \:1\::\quad 3\\=8+3\\\\= 11[/tex]
[tex]5+3-8\div \:4-2\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:8\div \:4\::\quad 2\\=5+3-2-2\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:5+3-2-2\::\quad 4\\=4[/tex]
[tex]\left(5+3\right)-8\div \:4-2\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(5+3\right)\::\quad 8\\=8-8\div \:4-2\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:8\div \:4\::\quad 2\\=8-2-2\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:8-2-2\::\quad 4\\=4[/tex]
a submarine is 50 meter below sea levl. it goes up 15 meters, then goes down 40 meters. what is the submarine' new position relative to sea level ? 1. ( -105 meters) 2. ( -75meters) 3.( -35 meters) 4. ( 25 meters)
Answer:
-75 meters
Step-by-step explanation:
First, subtract 15 from 50, since it is going up:
50 - 15
= 35
Then, add 40, since it is going back down:
35 + 40
= 75
So, the new position is -75 meters relative to sea level
First condition of submarine=50 m below the sea=-50 m
It goes up 15 m, that means we must add up 15 m.
-50 m+15 m=
15 m-50 m=-35 m (35 m below the sea)
And, then goes down 40 m, so we subtract it with 40 m.
-35 m-40 m=-75 m (75 m below the sea)
So, the right answer is 2. (-75 meters)
Thank you.
ASAP ASAP ASAP PLEASEEEEEEEE
Answer:
Rational number
Step-by-step explanation:
Rational is the only one that repeat.
Can someone please help me with this
Answer: [tex]3x^6+x^5-x^4-6x^3+x^2+3x-1[/tex]
Step-by-step explanation:
(3x^2+x-1)(x^4-2x+1)
=3x^6-6x^3+3x^2+x^5-2x^2+x-x^4+2x-1
=3x^6+x^5-x^4-6x^3+x^2+3x-1
Hope this helps!! :)
Please let me know if you have any question
Answer:
the thing below xd
Step-by-step explanation:
[tex](3x^{2} +x-1)(x^4-2x+1)\\\\=3x^2(x^4-2x+1)\\+x(x^4-2x+1)\\-1(x^4-2x+1)\\\\=3x^6-6x^3+3x^2\\+x^5-2x^2+x\\-x^4+2x-1\\\\=3x^6+x^5-x^4-6x^3+(3-2)x^2+(1+2)x-1\\\\=3x^6+x^5-x^4-6x^3+x^{2} +3x-1[/tex]
FUNCION AFÍN O LINEAL. Una empresa de gas cobra el servicio del siguiente modo: un cargo fijo de $140, mas un importe por el consumo mensual a razon de $25 el m3. A) ¿cuanto debera abonar la familia a la que se le registro un consumo de 140 m3 en el mes de mayo? (Los meses no es de importar :3) B) ¿cual es la formula que define esta funcion para un numero "x" de m3 consumidos? C) representar graficamente la situacion planteada D) ¿que representa en este caso la ordenada al origen? Si alguien me ayuda, de verdad se lo agradezco
Answer:
El costo es:
Primero tenemos un cargo fijo de $140.
Luego tenemos un $25 por cada m^3 consumido.
Entonces, si tenemos x m^3 consumidos en un mes, el cargo de ese mes va a ser:
C(x) = $140 + $25*x.
Esto es una relación linear.
A) En este caso tendríamos x = 140
C(140) = $140 + $25*140 = $3640
B) La formula es, como ya escribimos arriba, C(x) = $140 + $25*x.
C) El grafico estará al final. En el podemos ver que la linea corta el eje vertical en y = $140, que seria lo minimo que se puede pagar al mes, en el caso de que el consumo sea x = 0.
D) La ordenada al origen es $140, representa el cargo fijo que no depende de la variable x.
Mai had 5 candy bars she ate half of one candy bar and dicided to distribute the remaining bars between her two sisters and her self how many candy bars did each girl reicive
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
So there are five candy bars.
Herself and two sisters equals 3 people in total.
This is a graph of 5 candy bars, each line being 1/2.
━ ━
━ ━
━ ━
━ ━
━ ━
If she ate half of one... the graph would become this.
━ ━
━ ━
━ ━
━ ━
━
Now there are 9 halves. You need to split the 9 halves for 3 people. 9 divided by 3 is 3.
Each person gets 3 halves, or 1 and 1 half.
Mai: ━ ━ ━
Sister 1: ━ ━ ━
Sister 2: ━ ━ ━
Altogether that is 9 halves, AKA the number of halves Mai had after she ate 1/2.
The amount Mai ate in the first place: ━
9 halves plus 1 half, equals 10 halves. Each whole has 2 halves. 10 divided by 2 is 5, AKA the number of candy bars she had in the first place.
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
How can 3.7 = x + (negative 5) be solved for x in one step? Add 3.7 to both sides. Add 5 to both sides. Subtract 3.7 from both sides Subtract 5 from both sides
Answer:
Add 5 to both sides.
Step-by-step explanation:
3.7 = x + (-5)
3.7 + 5 = x + ( -5) + 5
5 cancels on the right
8.7 = x
The correct step to solve an equation is add 5 to both sides. Therefore, option B is the correct answer.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 3.7=x+(-5).
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Now, 3.7=x-5
Add 5 to both sides of an equation, we get
3.7+5=x-5+5
x=8.7
The correct step to solve an equation is add 5 to both sides. Therefore, option B is the correct answer.
To learn more about the solution of an equation visit:
https://brainly.com/question/14506845.
#SPJ5
Properties of Exponents Drag and Drop
Answer:
Step-by-step explanation:
1). [tex]a^{3}\times a^5=a^8[/tex]
2). [tex](a^3)^3[/tex] = [tex]a^{9}[/tex]
3). [tex]\frac{a^{10}}{a^3}=a^{10-3}=a^7[/tex]
4). [tex]\frac{a^2}{a^7}=\frac{1}{a^{7-2}}=\frac{1}{a^5}[/tex]
5). [tex]\frac{a^5\times a^2}{a^7}=\frac{a^{5+2}}{a^7}=1[/tex]
6). [tex]\frac{16a^5b^3}{8a^2b}=(\frac{16\times 5}{8})(\frac{a^5}{a^2})(\frac{b^3}{b})[/tex]
[tex]=\frac{80}{8}(a^{5-2})(b^{3-1})[/tex]
= 10a³b²
7). [tex]\frac{2a^3b^3}{2b^2}=(\frac{2}{2})(a^3)(\frac{b^3}{b^2})[/tex]
= a³b
8). [tex](\frac{a^{-8}}{b^{11}})^{-2}=(\frac{b^{11}}{a^{-8}})^2[/tex]
[tex]=(b^{11}a^8)^2[/tex]
= [tex]a^{16}b^{22}[/tex]
9). [tex]\frac{(2a^3)(a^4)^2}{8a^{11}}=(\frac{2}{8})(\frac{1}{a^{11-3}})(a^4)^2[/tex]
[tex]=\frac{1}{4}(\frac{a^8}{a^8})[/tex]
[tex]=\frac{1}{4}[/tex]
10). [tex]\frac{5a^7b^2}{15a^{10}b^{-3}}=(\frac{5}{15})(\frac{a^7}{a^{10}})(b^{2+3})[/tex]
[tex]=\frac{1}{3}(\frac{b^5}{a^3} )[/tex]
[tex]=\frac{b^5}{3a^2}[/tex]
11). 3a⁰ = 3(1) = 3
12). (a²b)⁴ = (a²)⁴(b)⁴
= a⁸b⁴
The three medals earned in the Olympics are the gold, silver, and bronze medals. In the 2014 Winter Olympics, the United States had 28 total medal winners. There were two more gold medals than sivler medals, and the number of bronze medals was four less than the sum of the number of gold and silver medals. How many winners were there of each type of medal? Gold: Silver: Bronze:
Answer:
Let x be the number of silver medals.
As there were two more gold medals than silver ones, gold medals are x+2
We also know that the number of bronze medals was 4 less than the sum of gold and silver, so if there are x + 2 of gold and x of silver, there are x+x+2-4 of bronze.
Now, we can do an equation, as we know there were a total of 28 medals:
x + x + 2 + x + x + 2 - 4 = 28
And we isolate x:
4x = 28
x = 28/4 = 7
There were 7 silver medals, so there were 9 gold ones (7-2) and 12 of bronze (9+7-4).
The number of Gold, Silver and Bronze medals are 9, 7 and 12 respectively.
Let the number of silver medals = s
Let the number of good medals = s + 2
Let the number of bronze medals = 2s - 2
Total medals = 28
Therefore, the value for each medal will be:
s + s+2 + 2s-2 = 28
Collect like terms
4s = 28 - 2 + 2
4s = 28
s = 28/4 = 7
Silver medals = 7
Gold medals = s + 2 = 7 + 2 = 9
Bronze medals = 2s - 2 = 2(7) -2 = 14 - 2 = 12
Read related link on:
https://brainly.com/question/16784592
How does a translations 6 units up and 1 unit left change the coordinates of a shape?
Answer:
It will change the x by -1 and the y by +6
Step-by-step explanation:
Translating is sliding a shape up or down, thus coordinates will be changed
I need help On these 8 questions that are blank
Answer:
X = 5
Step-by-step explanation:
3x + 12 + 9x = 72
okay hopefully i can explain so when your doing this combine like terms so
3x + 9x = 12x
12x + 12 = 72
then you would subtract both sides by 12
+12 = subtract x+12=2
- 12 = add x-12=2
there just flipped so in this case i would subtract 12
12x + ( 12-12) = ( 72-12 )
so 12-12 = 0 and 72-12 is equal to 60
12x = 60
the divide on both sides l but leave the x alone so its just 60 divided by 12 wich is 5
so X = 5
hope this helps with ur homework a little btw go back and redo ur other awnsers with this new concept hope it helps
CAN SOMEONE PLEASE HELP ME
Answer:
Option 3
Step-by-step explanation:
AX and XB are congruent because we know that CD is a perpendicular bisector of AB.
The word "bisector" indicates that AB is cut into two equal parts, which allows us to make that claim.
<AXC≅<BXC because they are both equal to 90 degrees. This is because perpendicular means that the two lines are meeting at a 90-degree angle. Since both of them are 90 degrees, they are congruent.
Lastly, we know that XC ≅ XC since they are the same side.
With that in mind, we are able to prove that triangle AXC and BXC are congruent by SAS or side angle side. (The angle is between the two sides)
The correct choice would be option 3.
The distance between-3 and its opposite is ? ..... units
Answer:
6
Step-by-step explanation:
The opposite of -3 is 3. Opposite numbers are numbers that when added, sum to 0. The distance between 3 and -3 is |3 - (-3)| = |3 + 3| = |6| = 6.
If r = 10 units and h = 5 units, then what is the volume of the cylinder?
Answer:
Volume of a cylinder=1/2πr^2h.
1/2×3.142×10^2×5.
1/2×3.142×100×5.
1/2×1571
=785.5
Answer:
About 1570.8
Step-by-step explanation:
Start by looking at the equation for solving a cylinder, which is V = π x r² x h. Since r = radius (5) and h = height (10), you add those numbers into the equation. Now you have to solve V = π x 5² x 10, which will get you your repeating decimal of 1570.79633...which then can be rounded your answer of 1570.8.
A full 500L tank of water is being drained at a rate of 5L per minute into an empty tank. How long will it take for the tank to have the same amount of water? Please help and thank you very much!!!!
Answer:
100 minuets aka 1 hour and 40 minuets
Step-by-step explanation:
It would be 100 because 500÷5=100
the lowest temperature ever recorded on Earth is -94.7 this was recorded in August 2010 in Antarctica. Before this date, the previous record was at -89.2 What is the difference between these two extreme temperatures?
Answer:
5.5
Step-by-step explanation:
The lowest temperature ever recorded on Earth is =-94.7
Before this date, the previous record was at= -89.2
the difference between these two extreme temperatures=-89.2-(-94.7)
=-89.2+94.7
=5.5
The difference between these two extreme temperatures is 5.5
Charles measured three pieces of string.The strings measured 7.68 inches,3.9 inches,and 2.2 inches.What is the difference in length between the longest string and the shortest string
Answer:
5.48
Step-by-step explanation:
Given length of three strings:
[tex]\text{Length of first string}, L_1=7.68\ inches\\\text{Length of second string}, L_2=3.9\ inches\\\text{Length of third string}, L_3=2.2\ inches[/tex]
To find:
The difference in length between the longest and the shortest string?
Solution:
First of all, let us compare the given three decimal numbers.
We check the number before decimal first of all.
We can see that the numbers are 7, 3, and 2.
7 being the largest [tex]L_1[/tex] is the longest string.
2 being the smallest [tex]L_3[/tex] is the shortest string.
So, the difference is:
[tex]L_1-L_3=7.68-2.2\\\Rightarrow \bold{L_1-L_3=5.48 }[/tex]
So, the answer is 5.48.
Question (Multiple Choice Wor (07.01) Which of the values in the set {3,4,5,6) is a solution to the equation 4x + 2 = 22? 3 4 5 6
Answer:
4x+2=22
4x+2-2=22-2
4x=20
4x/4=20/4
x=5
All of the following fractions are proper fractions, except A.11/12 B.7/5 C.1/6 D.8/15
answer:
A.7/5 is the correct answer because numerator is more than denominator.
thank me plz
Answer:
the answer is A
Step-by-step explanation:
Need help ASAP! Choose the numbers that are irrational. 1. 0. 87 repeating 2. 3.624 3. √2 4. 0. 6 repeating 5. -5 6. 1 over 3 7. Pi. I couldn't use the symbol
Answer:
√2, pi.
Step-by-step explanation:
An irrational number cannot be written as a fraction a/b where a and b are integers ( not = 0)..
There are 12 inches in 1 foot and 5,280 feet in 1 mile. Elena ran 2 ½ miles.
In order to join a tennis class you pay $200 annual fee then $10 for each class you go to. What is the average cost per class if you go to 10 classes
Answer:
the average cost if you go to ten classes plus the 200 plus 100 it will equal 300
Step-by-step explanation:
200 annual fee then 10+10+10+10+10+10+10+10+10+10 equal 100 so 200+100 equal 300 for the 10 classes plus the annual fee.
Find the highest common factor (HCF) of 84 and 120
Answer:
GCF-12
Step-by-step explanation:
Find the prime factorization of 84
84 = 2 × 2 × 3 × 7
Find the prime factorization of 120
120 = 2 × 2 × 2 × 3 × 5
To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 2 × 2 × 3
GCF = 12
Answer: The GCF is 12
Step-by-step explanation:
84=2*2*3*7
120=2*2*2*3*5
So, the GCF is 2*2*3=12
If f(x)=x^4+4 and g(x)=x-8 then what is f of
g(x)
Answer:
x⁴-32x³+384x²-2048x+4100
Step-by-step explanation:
f(g(x))= g(x)⁴+4
and simplify it
A publisher claims that the average salary paid at its company is $37,500 but it could differ as much as $4,500. Write and solve an absolute value inequality to determine the range of salaries at this company.
|x − 37500| ≤ 4500; The salaries range from $33,000 to $42,000
Kalila Winston worked for a software company for 26 years. She became permanently disabled and could no longer keep her job. She was 52 years old and had planned to work until she was 62. Her final salary was $43,000. Her rate of benefits was 2%. What is Kalila's monthly disability benefit?
Answer:
The monthly disability benefit is $2580
Step-by-step explanation:
Given
[tex]Final\ Salary\ (P) = \$43000[/tex]
[tex]Age = 52[/tex]
[tex]Benefit\ Rate (R) = 2\%[/tex]
Worked = 26 years
Expected = 62 years
Required
Determine the monthly disability benefit
First, we need to determine the years (T) left for her to work;
[tex]T = Expected - Worked[/tex]
[tex]T = 62 - 26[/tex]
[tex]T = 36[/tex]
Next, is to calculate the yearly disability benefit as follows;
[tex]Benefit = PRT[/tex]
Substitute 36 for T, 2% for R and 43,000 for P
[tex]Benefit = 43000 * 2\% * 36[/tex]
Convert percentage to decimal
[tex]Benefit = 43000 * 0.02 * 36[/tex]
[tex]Benefit = 30960[/tex]
There are 12 months in a year;
So; Monthly Benefit is as follows;
[tex]Monthly = \frac{30960}{12}[/tex]
[tex]Monthly = \$2580[/tex]
Hence, the monthly disability benefit is $2580