Step-by-step explanation:
wapsi ki Vidya kya hai Hindi mein
Which exponential function is represented by the values in the table?
Answer:
[tex]\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x[/tex]
Step-by-step explanation:
Exponential Function
The exponential function can be written with the general equation:
[tex]f(x)=A\cdot r^x[/tex]
Where A is the value when x=0 and r>0 is the ratio. If r is greater than 1, the function is increasing, if r is less than 1, the function is decreasing.
The table shows the relation between values of x and values of the function y. Note that as x increases (one by one), y decreases with a ratio of 1/2. Only the last two choices have ratios of r=1/2. We only have to test which one of them has the correct value of y=4 when x=0.
Substituting in the third function:
[tex]\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x[/tex]
[tex]\displaystyle f(0)=4\cdot\left(\frac{1}{2}\right)^0[/tex]
[tex]f(0) = 4[/tex]
This gives the correct value of f(0)=4.
Substituting in the fourth function:
[tex]\displaystyle f(x)=\frac{1}{2}\cdot\left(\frac{1}{2}\right)^x[/tex]
[tex]\displaystyle f(0)=\frac{1}{2}\cdot\left(\frac{1}{2}\right)^0[/tex]
[tex]f(0) = \frac{1}{2}[/tex]
This choice is wrong
Correct choice:
[tex]\boxed{\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x}[/tex]
In the scale used on a blueprint .1\4 inch represents 2 feet,on the blueprint what is the length of a room with an actual length of 20 feet?
Answer: The length of the room on blueprint = 10 feet.
Step-by-step explanation:
Given: On blueprint,
[tex]\dfrac14[/tex] inch = 2 feet
i.e. 1 actual feet = [tex]2\times\dfrac 14 =\dfrac12\text{ inch}[/tex]
If the actual length of 20 feet, the length of a room on blueprint = [tex]20\times\dfrac12\text{ feet}[/tex]
= 10 feet.
Hence, the length of the room on blueprint = 10 feet.
Find the length of a segment in the coordinate plane with endpoints (-1,3) and (4, 5).
Answer:
square root 29
Step-by-step explanation:
use the distance formula sqrt(x2-x1)^2+(y2-y1)^2
sqrt(-1-4)^2+(3-5)^2= sqrt 29.
PLEASE HELP:
The deductions from Jennifer Miller's monthly pay are federal income tax (FIT) of $87, state income tax (SIT) of 2.5% of gross, (CIT) city income tax of 1.2% of gross, social security, and medicare. Her next monthly pay is $3,981.22. Find Jennifer's monthly gross pay.
A) $4,529.05
B) $4,551.23
C) $4,576.58
D) $4,589.08
Answer:
$4,711.31
Step-by-step explanation:
Calculation for Jennifer's monthly gross pay
First step is to calculate The total tax percentage deductions
Using this formula
Total tax percentage deductions =State tax + City tax + Social security + Medicare
Let plug in the formula
Total tax percentage deductions = 3.5% +2.5% +6.2% +1.45%
Total tax percentage deductions = 13.65%
Now let calculate the monthly gross pay
Monthly gross pay= ($3,981.22 +87)/(1-13.65%)
Monthly gross pay= ($3,981.22 +87)/0.8635
Monthly gross pay=$4,068.22/0.8635
Monthly gross pay= $4,711.31
What is another name for the x-intercepts of a quadratic?
a) x-axis
b) y-intercept
c) zeros
d) They don't have another name
Answer:
b or d
Step-by-step explanation:
are there any maths genius here can help?
Answer:
1 》let equal side be X and other side y
now, length of y= 2x sin teta/2
=12.3×sin42/2
=12.3 × sin21
=4.407
34=16+x helpppppp please due in 30 minutes
Answer:
34-16=18
so x = 18
Step-by-step explanation:
Answer:
x = 18
Step-by-step explanation:
Subtract 16 from both sides to get x by itself. 34 - 16 = 18. 18 = x
How many solutions does 2x = 2x -9 have?
Answer:
no solutions. a number cannot equal itself -9
Gina went to a restaurant for lunch. On her bill the sales tax equals $2.34. If the tax is 8.5%, what was the subtotal (without tax) of her meal?
Answer:
$2.5389
Step-by-step explanation:
Given data
Cost of lunch = $2.34
Tax= 8.5%
Let us compute the cost of the tax
=8.5/100*2.34
=0.085*2.34
= $0.1989
Hence the total is = 0.1989+2.34
=$2.5389
Juanita is riding her bicycle on a trail at the rate of 0.3 kilometers per
minute. Michelle is 11.2 kilometers behind Juanita when she starts traveling
on the same trail at a rate of 0.44 kilometers per minute. Let d represent
the distance in kilometers the bicyclists are from the start of the trail and t
represent the time in minutes. The situation can be represented by the
following system; d=0.3t+11.2 and d=0.44t. How many minutes will it take
Michelle to catch up to Juanita? How far will they be from the start of the
trail? Use the substitution method to determine your answer.
Answer:
It will take Michelle 80 minutes.
They're 35.20 kilometers away from their starting point.
Step-by-step explanation:
We have to find how many minutes it would take Michelle to catch up to Juanita.
We know that Michelle's movement is represented as: d = 0.44t
Juanita's movement is represented as: d = 0.3t + 11.2
To find how many minutes it would take for Michelle to catch up, we will have to solve both equations together and solve for "t", or time.
Solve:
0.44t = 0.3t + 11.2
Subtract 0.3t from both sides.
0.14t = 11.2
Divide both sides by 0.14
t = 11.2/0.14
t = 80
This means that it would take 80 minutes for Michelle to catch up.
To find how far they are, multiply 0.44 by 80.
0.44 · 80 = 35.20
This means that they're 35.20 kilometers away from their starting point.
Use the Distributive Property to expand
2(5x - 6y)- 4 =
Answer:
10x - 12y - 4
Step-by-step explanation:
2 x 5x = 10x
2 x 6y = 12y
put it all back together again
Answer:
x= 0.4+12y/10
Step-by-step explanation:
10x - 12y = 4
10x = 4 + 12y
x= 0.4+12y/10
Help
PleSe due now!!!!!
Answer:
1/2
Step-by-step explanation:
3/6 = 1/2
Answer:
1/6
Step-by-step explanation:
in case of one fair die, each face has the same probability, thus, P of each number is equally 1/6
Help please!
And thank u
Answer:
[tex] \frac{a}{7} + \frac{a}{3} = 10 \\ \frac{(3a + 7a)}{21} = 10 \\ \frac{10a}{21} = 10 \\ a = \frac{(10 \times 21)}{10} \\ \boxed{a = 21}[/tex]
a=21 is the right answer.2 2/3 - 1 1/2 - 4/5
Need answers pls show how you got it
Angles that ALWAYS sum to 180°
Answer:
supplementary angles
Step-by-step explanation:
Solve: m = 5 – (-10).
GIVING BRAINLIST to people who is correct!
Answer:
15
Step-by-step explanation:
Please help me. I really don't know dis
Answer:
I would do C because 2/3 is close to a whole so then you would get -3 and 1/4 is close to 0 so just keep 18 the same which would be -18 so -18 divided by -3 would be correct
Step-by-step explanation:
help pls thank you :)))$$:$:
Answer:
C.
Step-by-step explanation:
please mark me brainliest!!
Answer:
The answer is A
Step-by-step explanation:
Denominator *100* is higher
Julie earned $402.17 in net pay for working 40 hours. She paid $93.26 in federal and state taxes, and $41.86 in FICA taxes. What is Julie's hourly wage?
Answer:
6.67625
Step-by-step explanation:
402-93-41=267/6.67625
Which of the following has zeros that are not significant?
2.05 m/s
10.0 J
1.30 N
100 kg
Answer:
Your answer would be D. 100 kg
Step-by-step explanation:
I took the test and got it correct
Hope this helps
Good luck!
The required zero that has not significant is 100, 10.0, and 1.30.
Given that,
To determine the number that has zeros that are not significant.
A number system is described as a technique of composing to represent digits. It is the mathematical inscription for describing numbers of a given set by using numbers or other characters in a uniform method. It delivers a special presentation of every digit and describes the arithmetic structure.
Here,
Zeros between non-zero numbers are significant.
So it contains 2.05,
Zeros to the left of the first non-zero digit are not significant.
It contains 100, 10.0. and 1.30
Thus, the required zero that has not significant is 100, 10.0 and 1.30
Learn more about the number system here:
https://brainly.com/question/22046046
#SPJ2
5 yards, 3 feet = ____ feet
Please help
Answer:
18 feet
Step-by-step explanation:
help i need help fast
Answer:
Vertical, Horizontal, and Diagonal
Step-by-step explanation:
5 lines of Symmetry.
It has four lines of symmetry and four sides. A regular pentagon has 5 sides and 5 lines of symmetry. The number of lines of symmetry in a regular polygon is equal to the number of sides.
From triangle PQR is P = 90°, PQ = 15.5 dm and PR = 11,7 dm. Calculate QR in dm. Round to one decimal.
Answer:
QR = 19.4
Step-by-step explanation:
Use Pythagoras because p = 90°
Qr is hypotenuse
; (15.5)² + (11.7)²
= 377.14
√377.14
= 19.42009
= 19.42
= 19.4
hope it helps ☺️
What is the sum of the angle measures of a 35-gon ?
Answer:
The interior angles would be 5940. The exterior angles would add to 360
Step-by-step explanation:
5.25 divided by 3
Thank You.
Answer:
1.75
Step-by-step explanation:
1.75 :) you can check your answer by multiplying by 3!
Brainliest would be appreciated
PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG
Answer:
120 is too steep, so it is either 150 or 160. According to an online protractor, it appears to be 150 degrees.
Step-by-step explanation:
How can I solve this with substitution with steps.
y=-6x-16
-2x+4y=-2
Answer:
(-31/13, -22/13)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = -6x - 16
-2x + 4y = -2
Step 2: Solve for x
Substitution
Substitute in y: -2x + 4(-6x - 16) = -2Distribute 4: -2x - 24x - 64 = -2Combine like terms: -26x - 64 = -2[Addition Property of Equality] Add 64 on both sides: -26x = 62[Division Property of Equality] Divide -26 on both sides: x = -31/13Step 3: Solve for y
Define original equation: y = -6x - 16Substitute in x: y = -6(-31/13) - 16Multiply: y = 186/13 - 16Subtract: y = -22/13Simplify the following expression: 9x+ 8y + 3x + 2y the *
Answer: 12x + 10y
Step-by-step explanation:
i dont understand graphs at all
Answer:
cool?
Step-by-step explanation:
Given: a = 12, c = 38, find b. (Round answer to the nearest tenth.)
Answer:
24
Step-by-step explanation:
you add 12 for each letter you go up