Answers
Answer:
A.
Step-by-step explanation:
correct answer is
[tex]y=100*(0.91)^x.[/tex]
if to compare the values of the y, (0;100), (1;91), (2;82.81), (3; 75.3571), then
75.3571/82.81=82.81/91=91/100=0.91, it means the next value is decreased at 9%.
Related Questions
Student claims that he can solve 12 X plus 8Y equals 40 and 4X plus 5Y equals 18 for axing why by adding the first equation into multiple of the second equation he can use the new equation and the first equation to create a new system that has the same solution of the original listing it begins by listing for different equations determine whether the student can use the credit to replace the second equation and create a new system that has the same solution select yes or no for each equation
Answers
Answer:
x = 2 and y = 2
Step-by-step explanation:
The given system of equations are :
12x+8y = 40 ...(1)
4x+5y = 18 ....(2)
Multiply equation (2) by 3.
12x+15y = 54 ...(3)
Subtract equation (1) by (3).
12x+15y-(12x+8y) = 54-40
12x+15y-12x-8y = 14
7y = 14
y = 2
Put the value of y in equation (2).
4x+5(2) = 18
4x+10 = 18
4x = 8
x = 2
The solutions of the given equations are x = 2 and y = 2
Please help, marking brainliest if correct!
Answers
Answer:
134 degrees
Step-by-step explanation:
3x-6=180
3x=186
x=62
2x+10
=124+10
=134
Answer:
x-16+2x+10=180 x=62
Step-by-step explanation: 2(62)+10=134
Angle FDG=134
Factorise 12x - 30 please help
Answers
Answer:
6(2x-5)
Step-by-step explanation:
Fatorizar a expressão
Answer:
6(2x-5)
Step-by-step explanation:
Find the Greatest Common Factor (GCF).
1 What is the largest number that divides evenly into 12x12x and -30−30?
It is 66.
2 What is the highest degree of xx that divides evenly into 12x12x and -30−30?
It is 1, since xx is not in every term.
3 Multiplying the results above,
The GCF is 66.
Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)
6(\frac{12x}{6}-\frac{30}{6})
6(
6
12x
−
6
30
)
3 Simplify each term in parentheses.
6(2x-5)
6(2x−5)
Simplify the expression:
2x + 5 + x
Answers
Answer:3x+5
Step-by-step explanation:
1) Combine like terms 2x+5+x
solution: 3x+5
Which type of sampling method is being employed in the following example:
"A study was being conducted after a tsunami. The researcher was trying to assess the needs of the victims in a single
downtown high rise apartment building. So, she sent a messenger to ask one person on each floor what their needs were to
get an idea of what was needed to support the people in the building.”
Answer choice
a) Simple Random Sampling
b) Stratified Sampling
c) Clusters Sampling
d) Sampling of Convenience
e) Systematic Sampling
Answers
Plz help me I am timed
Answers
Answer:
285
Step-by-step explanation:
190% x 150= 285. Hope it helps! :D
Answer:
285
Step-by-step explanation:
y=1.9x
x= Number of books, y= Total weight in pounds
1.9(150)=285
Number 7 is 9x-5 and 7x+25 solve angles
Answers
9+5 14
7+25=32
32 +14=46
Someone please help me on this and show work I need help I’ll give brainliest
Answers
F(10)= (10)^2-3(10)-5
F(10)=100-30-5
F(10)=65
B.
F(-3)=(-3)^2-3(-3)-5
F(-3)=9+9-5
F(-3)=13
C.
G(2)= -6(2)+1
G(2)= -12+1
G(2)=-11
D.
G(10)=-6(10)+1
G(10)= -60+1
G(10)= -59
Make x the subject of the formula y=2x-3
Answers
The questions is basically saying make x isolated.
First add 3 to both sides.
y+3=2x-3+3
y+3=2x
Now divide both sides by 2
(y+3)/2=x
x=(y+3)/2
Done!
Any questions just ask me in the comments.
What is 2+2-5???????????
Answers
you start by adding 2 + 2 which equals 4.
4-5
then you take 5 away from 4 and get -1
Answer:
-1
Step-by-step explanation:
When solving a problem like this, you should do addition and subtraction from left to right. 2 +2 = 4, and 4-5=-1. Hope this helps!
Please please please help! Fast
Answers
I need help pls:) and if u need help just tell me
Answers
84/3 =28
id iotn like branly plus it keep asking for money and it s super annoying
Answers
Answer:
YESSSS ikr like every minute it say UpGrAdE uR bRaInLy and its just ike I ALREADY DIDDDDDD it is VERYYY anouing
Step-by-step explanation:
The brackets for a shelf are in the shape of a triangle. Find the angles of the triangle if the measures of the angles are in the ratio 2x : 3x : 5x
Answers
[tex] \huge \blue{\tt{Answer:}} [/tex]
[tex] \sf{2x+3x+5x=180°[angle~sum~property~of~a~triangle]} [/tex]
[tex] \implies \sf{10x=180°} \\\\ \implies \sf{x = {\dfrac{180°}{10}}} \\\\ \implies \sf{x=18°} [/tex]
[tex] \sf{2x= 36°} \\\\ \sf{3x=54°} \\\\ \sf{5x=90°} [/tex]
There are 609 skiers in line for the lift if each chair seats 6 people how many skiers will be on the last chair
Answers
Answer:
3 skiers will be on the last chair
Step-by-step explanation:
Divide 609 skiers by 6 people per chair:
609 ÷ 6 = 101.5 (also can write as 101 and remainder of 3)
Multiply 101 • 6 = 606
609 - 606 = 3
The two-way table shows the ages of the players on different soccer teams.
Which statement is true?
Answers
Team A is 4, the total is 21.
This can’t be simplified.
Plus I took the quiz on edge.
Write the algebraic
expression for:
the sum of 24 and c
Hi I’m kinda confused and need some help :D
Answers
Answer:
24 + c
Step-by-step explanation:
Seven subtracted from five times a number is 123.Find the number.
Answers
Answer:
the answer is 42
Step-by-step explanation:
A sea turtie descends 28 feet from the surface of the ocean and then ascends 5 feet. Then it descends & feet and repeats this desceni 4 times. How many feet below the surface is the turtle then?
Answers
Answer:
I don't exactly know this but
Step-by-step explanation:
remeber that descend is subtraction. under
The proportions of blood phenotypes, A, B, AB, and O, in the population of all Caucasians in the United States are approximately .41, .10, .04, and .45, respectively. A single Caucasian is chosen at random from the population. a List the sample space for this experiment. b Make use of the information given above to assign probabilities to each of the simple events. c What is the probability that the person chosen at random has either type A or type AB blood
Answers
Answer:
a. S = {A,B,AB,O}
b. P(A) = 0.41, P(B) = 0.1, P(AB) = 0.04, P(O) = 0.45
c. 0.45 = 45% probability that the person chosen at random has either type A or type AB blood
Step-by-step explanation:
a List the sample space for this experiment.
All possible blood types(A, B, AB or O). So
S = {A,B,AB,O}
b Make use of the information given above to assign probabilities to each of the simple events.
The proportions of blood phenotypes, A, B, AB, and O, in the population of all Caucasians in the United States are approximately .41, .10, .04, and .45, respectively.
So
P(A) = 0.41, P(B) = 0.1, P(AB) = 0.04, P(O) = 0.45
c What is the probability that the person chosen at random has either type A or type AB blood
P(A) + P(AB) = 0.41 + 0.04 = 0.45
0.45 = 45% probability that the person chosen at random has either type A or type AB blood
Solve this quadratic equation by completing the square.
x^2 + 6x = 18
Answers
Step-by-step explanation:
Use formula
[tex] (\frac{b}{2} ) {}^{2} [/tex]
To add a third new term and factor to find the answer. Example
[tex]x {}^{2} + 6x = 18[/tex]
[tex]( \frac{6}{2} ) {}^{2} [/tex]
Which equal 9. so our equation look like
[tex] {x}^{2} + 6x + 9 = 18 + 9[/tex]
The only number that multiply to 9 and add up to 6 is 3. So we write our equation like this.
[tex](x + 3) {}^{2} = 27[/tex]
Take the sqr root of both sides
[tex]x + 3 = \sqrt{27} [/tex]
Subtract 3 from both sides
[tex]x = \sqrt{27} - 3[/tex]
Since a sqr root of a number can be positive or negative, the answer is
[tex] \sqrt{27} - 3[/tex]
or
[tex] - ( \sqrt{27} ) - 3[/tex]
m
n
Given:
(x + 60)
4xº
m || n
*not drawn to scale
What is the value of x?
Answers
Answer:
A 20°
Step-by-step explanation:
Explanation:-
Given graph
The corresponding angles are congruent (equal to each other)
(x+60)° = 4 x°
x + 60 = 4x
4x-x = 60
3x =60
x = 20°
The value of x=20°
HELPPPP MEEE
Find the missing measure in each triangle with the given angle measures.
x°, 90°, 16.5°
a.
83.5
b.
93.5
c.
63.5
d.
73.5
Answers
have a good day
27 deliveries in 3 hours = ___ deliveries per hour
Answers
Answer:
9
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
27÷3=9
(hope this helps can i plz have brainlist :D hehe)
Please help. Will mark brainliest!
Answers
Answer: the volume would be 384 but if you want it separately it would 8*4= 32
8*12=96
4*12=48
but the total cost would be 176 after you add up the equations
and the surface area would be 352
hope this helped :D
Answer: It is 384 is for volume and 352 for surface area
Step-by-step explanation: 384 square inches for volume because you multiply all the numbers together. V = LWH (volume=lengh+with+hight)
352 for surface area.
V = (8) x (4) x (12)
V = 384 inches squared
SA = 2(LH)+2(LW)+2(WH)
SA = 2(8x12) + 2(8x4) + 2(4x12)
SA = 192 + 64 + 96
SA = 348 inches squared
I hope this helps! =3
¿cuántos metros tiene cada lado de un terreno cuadrado que tiene 2 hectáreas?
Ayuda!
Answers
Answer:
2000 metros hola y de su comadre
What is the rule for the pattern below?
47, 54, 61, 68, 75
Answers
Find the x- and y-intercepts of the graph of 2x−8y=32. State your answers as whole numbers or as improper fractions in simplest form.
PLEASE HELP
Answers
have a good day!
Answer:
x= 16 y= -4
Step-by-step explanation:
So for the x intercept we get positive 16, or (16,0). And then for the y intercept we get negative 4, or (0,-4). Have a great day!! :)
In a nature conservatory, the ratio of butterflies to total number of flying insects is 36 to 100. There are 450 total flying insects.
Create a table for how many butterflies there are for 1, 50, and 100 flying insects. Show your work.
How many butterflies are in the conservatory? Show your work.
HELP ASAP I NEED SHORT ANSWERS
Answers
Answer:
sfsdfsfgsg
Step-by-step explanation:
No question but can you help me with Finding PI lol I don’t really get it. I will mark brainliest 60 points 30 for each person that answers.
Answers
Answer:
Make sure you are using a perfect circle. This method won't work with ellipses, ovals or anything but a real circle. A circle is defined as all the points on a plane that are an equal distance from a single center point. The lids of jars are good household objects to use for this exercise.You should be able to calculate pi roughly because in order to get exact results of pi, you will need to ...
Measure the circumference of a circle as accurately as you can. The circumference is the length that goes around the entire edge of the circle. Since the circumference is round, it can be difficult to measure (that's why pi is so important). Lay a string over the circle as closely as you can. Mark the string off where it circles back around, and then measure the string length with a ruler.
Measure the diameter of the circle. The diameter runs from one side of the circle to the other through the circle's center point.
Use the formula. The circumference of a circle is found with the formula C= π*d = 2*π*r. Thus pi equals a circle's circumference divided by its diameter. Plug your numbers into a calculator: the result should be roughly 3.14.[3] X Research source
Repeat this process with several different circles, and then average the results.
Step-by-step explanation:
Answer:
To find the area of a circle the equation is pir^2
To find the circumference of a circle it is 2pir
The pictures show you visually what they look like
r=radius
If this answer helped you then please consider making this brainliest and thank this response :)