Answers
Answer:
y = 10(½)^(x)
Step-by-step explanation:
In writing exponential functions passing through points, we will just substitute the x and y values in each case into y = ab^(x).
Now, for point (-1, 20), the exponential function is; 20 = ab^(-1)
20 = a/b
For the point (1, 5), the exponential function is; 5 = ab^(1)
5 = ab
From 20 = a/b, we have; a = 20b
Thus, putting 20b for a in 5 = ab, we have;
5 = 20b(b)
b² = 5/20
b² = 1/4
b = √(1/4)
b = 1/2
Since a = 20b, then;
a = 20 × 1/2
a = 10
Thus, from y = ab^(x), we have;
y = 10(½)^(x)
Related Questions
PLEASE ANSWER ASAP FOR BRAINESLT!!!!!!!!
Mrs. Lee randomly surveyed 25 of her 125 students about their pets. Her survey indicate that 14 students have a dog, 7 students have a cat, 2 students have another kind of pet, and 8 students have no pet. (Note that some students have more than one pet). What is Mrs. Lee's best estimate of the total number of her students who have a dog?
A. 70
B. 35
C. 10
D. 40
Answers
Answer: Hello! When I tried solving the problem and I got the answer of 70.
Step-by-step explanation:
So, 14 out of the 25 kids have a dog. If you were to have 125 kids which if 5 times the first 25 kids it would be 14 x 5 which is 70.
Almost there! I can smell the victory
Answers
Answer:
165
Step-by-step explanation:
18 x 6 = 108
19 x 3 = 57
108 + 57 = 165
:)
Minutes No. of Homework
Problems
2 or Less
3-4
5-6
7-8
9 or more 8
4
2
0
3
What is the number of homework problems that took less than 5 minutes in the given table?
A.
4
B.
14
C.
12
D.
8
Answers
find the midpoint of (-1,2) (-4,-9)
Answers
Answer:
use this info to help answer it
Measure the distance between the two end points, and divide the result by 2. This distance from either end is the midpoint of that line. Alternatively, add the two x coordinates of the endpoints and divide by 2. Do the same for the y coordinates.
I nEd the answer pls
Answers
Answer:
C
Step-by-step explanation:
[tex]SA = 2(lw) + 2(lh) + 2(wh)[/tex]
A circle has a diameter of 12cm. Find the arc length if the central angle is 37°.
Round to the nearest tenth.
Answers
Answer:
40
Step-by-step explanation:
37 is greater than five and the next number with a zero would be 40
Property of 10+5=5+10
Answers
Answer:
Commutative Property of Addition
Answer:
Commutative property
Step-by-step explanation:
The commutative property is when the order of the addends is changed, the sum stays the same.
Ex. 3+7 = 7+3
Both 3+7 and 7+3 = 10
Define Hypotenus
I have forgotten what it is
Answers
In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle. The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides.
It is useful in different situations involving the need to find distance or the measure of an angle.
Use the Pythagorean theorem to calculate the hypotenuse from right triangle sides. Take a square root of sum of squares: c = √(a² + b²)
1. A guitar is on sale with a 55% discount.
If it regularly sells for $270, what is the
amount of discount?
Answers
Answer:
it should be 148.5
Step-by-step explanation:
Answer:
$121.50 is the new amount! The discount is $148.50
Step-by-step explanation:
In the triangle below,
y = [? ] cm. Round to the
nearest tenth.
15 cm
X
35°
909
Answers
Answer:
12.3
Step-by-step explanation:
You will use cosine to solve for y because you are given the hypontenuse and need to find the adjacent side.
cos 35 degrees = adjacent/hypontenuse
cos 35 = y/ 15
15( cos35 ) = y
y=12.287
=12.3
Add and check 5,655+7,978
Answers
Answer: 13,633
Step-by-step explanation: 5,655+7,978=13633
Check: 13,633- 5,655=7,978
Plz help me well mark brainliest if you are correct!!.....
Answers
Step-by-step explanation:
the base is 5unit and the height is 9unit
Answer:
The base is 5 units the height is 9 units
Step-by-step explanation:
Just count the blocks in the diagram
base = 5
Height = 9
Simplify (x2y)3.
x2y3
x5y3
x6y3
Answers
Answer:
3x2^y
Step-by-step explanation:
brainleist plss
Can you construct a triangle with side lengths of 1 meter, 7 meters, and 8 meters?
Yes or no and explain
Answers
Answer:
No.
Step-by-step explanation:
No.
Each side of a triangle must have a length between the difference and the sum of the lengths of the other two sides.
Let's look at the sum and difference of lengths of 2 sides.
Side with length 1 and side with length 7; third side with length 8
sum of lengths of first two sides = 1 + 7 = 8
difference = 7 - 1 = 6
The third side would have to have a length between 6 and 8. The third side has a length of 8. For a triangle, the third side must be between the sum and difference. Here, the third side is equal to the sum, so there is no triangle.
As soon as one side does not work, there is no triangle, and you don't need to check the sums and differences of the other two sets of two sides.
Which describes how the figure below was transformed?
Answers
Answer: Rotation
Step-by-step explanation: This is a rotation because the figure is rotated 90°. This is not a translation because it isn't moved to a different position. This is not a reflection because it isn't mirrored. This is not a dilation because the size didn't change. Therefor, it is a Rotation, because this figure was rotated 90°
Examples are below if you still don't quite understand.
sum difference place value of 2 in 4242
Answers
Answer:
[tex]\huge\colorbox{violet}{✏﹏ \: ᴀɴsᴡᴇʀ \: }[/tex]
4242
2 = 200 ( 2 is in hundred's place )
4242
2 = 2 ( one's place )
Difference = ?
[tex] = 200 - 2 \\ = 198[/tex]
Sum = ?
[tex] = 200 + 2 \\ = 2[/tex]
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}[/tex]
WILL
GIVE BRAINLIST ANSWER
...
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..
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..
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Answers
Answer:
-10, -|-8|, -(-2), |-11|, 5²
Step-by-step explanation:
Answer:
YOU POST THIS TWICE
IT'S -10, -|-8|, -(-2), |-11|, 5²
Step-by-step explanation:
What is the midline equation of y = -4sin (2x - 7) + 3?
Answers
Step-by-step explanation:
Thank you this is your answerPLZ HELP I WILL GIVE BRAINLIEST
Answers
Answer:
33 m^2
Step-by-step explanation:
Since the area of a kite can be found by h1*b1 + h2*b2, the area is
3 * 1 + 3 * 10 = 33 m^2
you have the following coins in your pocket five quarters six dimes two nickels and 12 pennies what is the probability as a decimal you would draw a dime.
Answers
Answer: The probability of you drawing a dime is 0.24
Step-by-step explanation:
5 quarters, 6 dimes, 2 nickels, 12 pennies
5+6+2+12= 25
6/25= 0.24 or 24%
Answer:
0.24
Step-by-step explanation:
P(dime) = 6/25 which is 0.24
The Sine Function
Your sine regression model for a given problem is
y = 0.500 sin (0.222x - 1.509) + 0.521.
Use your model to predict y(95). Round your answer to the nearest hundredth.
a. y(95) = 0.27
b. y(95) = 0.47
c. y(95) = 0.17
d. y(95) = 0.85
Please select the best answer from the choices provided
Answers
Answer:
D. y(95) = 0.85
Step-by-step explanation:
I calculated it logically
3. Calculate the value of x in the figure to the right: (2 Points)
Answers
Answer:
x = 12
Step-by-step explanation:
When two chords intersect each other inside a circle, the products of their segments are equal.
------------------
2x = 6 * 4
2x = 24
Divide both sides by 2
x = 12
Hyo spent $48.84 for a gold-plated trophy that costs $37 per pound. How much did the trophy weigh?
Answers
Help me on this question please
Answers
We need to split it into 2 + 3 + 5 = 10 'parts', meaning each 'part' is 18 KD.
Thus, Ahmed receives 18(2) = 36 KD, Qasim receives 18(3) = 54 KD, and Omer receives 18(5) = 90 KD
Last week, the daily low temperatures for a city, in degrees Celsius, were 5, 8, 6, 5, 10, 7, and 1. What was the average low temperature? Show your reasoning.
Answers
Determine the equation of the quadratic function shown below.
Answers
A 10 ft board is to be cut into three pieces, two equal- length ones and the third 9 in shorter than each of the other two. If the cutting does not result in any length being lost, how long are the pieces?
Answers
Answer:
Let x represent one of the equal length sides making the third side which is 3 inches shorter than each of the other two equal to:
Third piece = x − 3 . Knowing that the whole board is 10 feet, in inches it is:
10 feet × 12 inches / 1 foot = 120 inches
To find the length of the pieces, add them and equate it to the legth of the board in inches as shown below:
x + x + x − 3 = 120 + 3
3 x /3 = 123 /3
x = 41 inches
Third piece = x − 3 =
41 − 3
= 38 inches
Step-by-step explanation:
Plz help me well mark brainliest if correct!.,....
Answers
Answer:
6cm
Step-by-step explanation:
I did 24 divided by 4 since a square has 4 sides
Please Help! Lateena solved an equation. Explain why or why not her solution is correct.
Answers
Answer:
Actually her answer is wrong because it's a quodratic equation.
Select the correct answer. Consider functions fandg f(3) = 5.2.1, for 3 + 2 and = + -6 4:2 – 16: + 16 96) = 4+ 48, for : * -12 Which expression is equal to 10) (+? OA . OB. 1 Ос. OD. 5+2 6
Answers
Answer:
A
Step-by-step explanation: