By using the first two points on the graph, we conclude that exponential equation is:
y = 200*(0.4)^t
What is the equation?We assume that the equation is an exponential decay of the form:
y = A*(r)^t
When t = 0 we have:
y = A
On the graph we can see that the initial value is 200, then A = 200, so we have:
y = 200*(r)^t
By looking at the graph we can see that:
80 = 200*(r)^1 (this is the second point graphed).
Solving for r we get:
80 = 200*(r)
80/200 = r = 0.4
Then the exponential equation is:
y = 200*(0.4)^t
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Sally scored 9.007 in gymnastics. Jack scored 8.949. How much higher was sally scored than jack’s
Answer:
0.058
Step-by-step explanation:
Answer:
0.058
Step-by-step explanation:
5/7 of the teaching staff at St Therese's Upper basic school are females. What fraction of the staff are males?
Answer:
2/7 of the staff are males
Step-by-step explanation:
This is because 5/7 - 7/7 + 2/7 thus gives you 2/7 male teachers
B) What is the measure of E PLEASE Explain how you know.
C) Describe the relationship between E and K? What is the measure of K
Answer:
Step-by-step explanation:
e and k are alternate exterior angles so they would be the same measurement you cant really do it without atleast one measurement did you miss anything on the question maybe?
please please please help
Joseph typed a 36- word paragraph in 2/3 minute. What is his typing speed in words per minute?
Answer:
It is 54.
Step-by-step explanation:
You divide 36 by 2/3.
A circle is translated 4 units to the right and then reflected over the x axis. What statement will always be true of the circle at the new location?
Answer:
The statements are not given, so i will answer it in the most general way possible:
First, let's recall two things:
Horizontal translation.
For a number A positive, we can move the graph of f(x) by A units to the right by the transformation g(x) = f(x - A)
Reflection over x
For a point (x, y), a reflection over the x-axis transforms this point into (x, - y).
Now let's analyze the problem:
A generic circle, of radius R and centered in the point (a, b) can be written as:
(x - a)^2 + (y - b)^2 = R^2.
Now let's translate this 4 units to the right:
(x - 4 - a)^2 + (y - b)^2 = R^2.
or in standard circle notation:
(x - (4 + a))^2 + (y - b)^2 = R^2.
Now the circle is centered in the point (a + 4, b).
Now let's do a reflection over the x-axis.
This means that the sign of y changes, so now we have:
(x - (4 + a))^2 + (-y - b)^2 = R^2.
But because the term with y is squared, this is the same than:
(x - (4 + a))^2 + (y + b)^2 = R^2.
Or, in standard circle notation:
(x - (4 + a))^2 + (y - (-b))^2 = R^2.
Then the circle is now centered in point (a + 4, -b).
So now you know where the circle is located, and also you can see that the radius of the circle never changed.
The first term of a sequence is 13. The term-to-term rule is 'take away 5'. Work out the 4th term
Answer:
The answer is -2, give me brainliest answer
Step by step solution:
1. 13-5=8
2. 8-5=3
3. 3-5= -2
Answer:
-2
Step-by-step explanation:
13
13 - 5 = 8
8 - 5 = 3
3 - 5 = -2
QUICK whoever gives correct answer Will get brainliest
Answer:
Slope can be found by determining the ratio of the rise (vertical change) to the run (horizontal change).
In this case miles is the rise, and 3 hours is the run
It should rise 12 and go over 3
I cannot really make out what's on your screen but it's likely it would be D.
The line has to pass 3, it cannot be off 3 by a bit.
And it should be lower than 20 because it rises 12.
If a fair coin is tossed 4 times, what is the probability, rounded to the nearest thousandth, of getting at least 2 tails?
Answer:
You flip a coin 4 times, with 2 possibilities every flip, heads or tails. So, every time you throw there's a 50% chance you'll throw tails. so it would be 1/2
The probability of getting at least 2 tails is 0.688.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favorable outcomes/Total number of outcomes
Given that, a fair coin is tossed 4 times.
So, sample space is
S = {HHHH, TTTT, HHHT, HHTH, HTHH, THHH, HHTT, HTTH, HTHT, THHT, THTH, TTHH, HTTT, THTT, TTHT, TTTH}
Now, total number of outcomes =16
Number of favorable outcomes = 11
Probability =11/16
= 0.6875
≈ 0.688
Therefore, the probability of an event is 0.688.
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How do you get 23 using the numbers 2, 3, 5 and 6?
You can insert any operations such as x, -, +, /
3×5+6+2 because
3×5=15+6=21+2=23
I need help with this!!
Answer:
See below.
Step-by-step explanation:
1. Given
2. Commutative property of addition
3. Substitution property
4. Subtraction property of equality
5. Additive inverse property
6. Substitution property
7. Multiplication property of equality
8. Multiplicative inverse property
9. Substitution property
John has two coupons to use at a clothing store. One is for $20 off and the other is for 20% off. John wants to purchase a shirt with one of the coupons and wants to pay the least amount that he can. Choose the answer that BEST describes the situation.
A. The shirt will have the lowest price with the $20 off coupon.
B. The shirt will have the lowest price with the 20% off coupon.
C. The shirt will cost the same with either coupon.
D. It depends on the cost of the shirt as to which coupon will help John pay the lowest price.
Answer:
D. I think
Step-by-step explanation:
It depends on how much the t-shirt costs and from there you can test it out and take away 20$ and 20% and compare which has the lowest price
Order the numbers from least to greatest [-8.2, 6, -3.5, 8.2, -5]
a. 6, 8.2, -3.5, -5, -8.2 b. -8.2, -5, -3.5, 6, 8.2
c. 6, -5, -3.5, -8.2, 8.2 d. 8.2, 6, -3.5, -5, -8.2
Answer:
B. -8.2, -5, -3.5, 6, 8.2
Which equation has the solution x = 3?
Select each correct answer
09 - 31 = 0
0 +5=6
2x + 4 = 10
09-1=4
51 - 7 = 1
3x + 1 = 9
Answer:
2x + 4 = 10 = x =3
Step-by-step explanation:
09 - 31 = 0 (the variable x is not present in the given system)
0 +5=6 (the variable x is not present in the given system)
2x + 4 = 10 = x = 3
09-1=4 (the variable x is not present in the given system)
51 - 7 = 1 (the variable x is not present in the given system)
3x + 1 = 9 = x = 8/3
If the perimeter of a rectangle is 19. 4cm what is the width?
Answer:
Come on... Not enough evidence given.
Step-by-step explanation:
5. Mrs. Jaffe has 48 Starbursts and 64 Skittles. She wants to package them
in plastic bags so that each bag has an equal number of Starbursts and an
equal number of Skittles. What is the greatest numbel of bags Mrs.Jaffe
can put together with pieces of candy left over?
Answer:
8
Step-by-step explanation:
You find the GCF of 48 and 64
Answer:
8
Step-by-step explanation:
Number of paperclips in my hand is it a dependent or independent variables?
Answer:
Independent
Step-by-step explanation:
Step by step please.
Ok so the general form of a circle is given by;
(x-a)²+(y-b)²=r²
where a and b are the coordinates of the center
and r is the radius of the circle
For this case we know that the center is (5,-7)
So the general equation of the circle would be;
[tex](x - 5) {}^{2} + (y - ( - 7)) {}^{2} = r {}^{2} [/tex]
[tex](x - 5 {}^{2} + (y + 7) {}^{2} = r {}^{2} [/tex]
Since we know that (-3,-1) is a point on that circle, we can say that it satisfies the equation of the circle;
[tex]( - 3 - 5) {}^{2} + ( - 1 + 7) {}^{2} = r {}^{2} [/tex]
[tex]r {}^{2} = ( - 8) {}^{2} + ( 6) {}^{2} [/tex]
[tex]r {}^{2} = 64 + 36 = 100[/tex]
So now,
[tex](x - 5) {}^{2} + ( {y + 7)}^{2} = 100[/tex]
Angle C is a right angle. Find the side indicated to the nearest tenth. Find c if b=11.9, m∠B=20°
A.) 45.2
B.) 43.1
C.) 42
D.) 34.8
Answer:
D
Step-by-step explanation:
using the sine ratio in the right triangle
sin20° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{11.9}{c}[/tex] ( multiply both sides by c )
c × sin20° = 11.9 ( divide both sides by sin20° )
c = [tex]\frac{11.9}{sin20}[/tex] ≈ 34.8 ( to the nearest tenth )
$59.95 with a 6% sales tax, what would be the total cost to the nearest cent?
Answer:$63.55
Step-by-step explanation: You multiply 59.95 by 1.06
There are 230 ounces in 4 ounces of a type of ice cream, how many calories are in 6 ounces of that ice cream?
Answer:
Find the unit rate;
230 calories 57.5 calories_____________ = _____________
4 ounces 1 ounceWe multiply those 57.5 calories with 6 ounces
57.5(6) = 345, there are 345 calories in 6 ounces.
(note that you formatted the question wrong, it was supposed to be):
There are 230 calories in 4 ounces of a type of ice cream, how many calories are in 6 ounces of that ice cream?
A 2-pack of juice boxes costs $0.44. What is the price per box?
A. $0.44 per box
B. $0.88 per box
C. $0.22 per box
D. $0.11 per box
Answer:
C. $0.22 per box
Step-by-step explanation:
if it's two juice boxes and they cost $0.44 together. You divide by two, since there are two boxes. with that you get your answer, 44÷2=22. making the answer $0.22
if f(n) = n² - n, then f(-4) is ______.
A. -12
B. -20
C. 20
D. 12
Each space in the following grid can be filled in with integers. The product of each row and column is displayed in blue. Solve the puzzle. ( need this answered before 11:59 am )
Answer:
5 1 3
2 16 0
2 1 9
8 ft
6 ft
Find the area of this figure. Round your
answer to the nearest hundredth. Use
3.14 to approximate a.
A = [ ? ] ft?
Notice that only half of the circle is included in the figure!
The figure contains a triangle and a semicircle
The area of the figure is 49.12 square feet
How to determine the areaThe dimension of the triangle is:
Base = 8 ft
Height = 6ft
So, the area is:
Area = 0.5 * Base * Height
This gives
Area = 0.5 * 8ft * 6ft
Evaluate
Area = 24 square feet
The radius of the semicircle is:
r = 4 ft.
So, the area is:
[tex]Area = 0.5\pi r^2[/tex]
This gives:
Area = 0.5*3.14 * 4^2
Area = 25.12 square feet
Add the calculated areas.
Total = 24 square feet + 25.12 square feet
Total = 49.12 square feet
Hence, the area of the figure is 49.12 square feet
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20% more than $18 is what amount?
Answer:
$21.60
Step-by-step explanation:
20% can be written as 0.2
0.2 · $18 = 3.6
Add 3.6 to $18
$18.00 + 3.60 = $21.60
So the answer is $21.60
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How do I calculate the area of a triangle? I completely forgot.
Answer:multiply the height by the width then divide by 2
Step-by-step explanation:
Answer:
A=1/2*b*h
Step-by-step explanation:
Hope I helped
The lines a and b are parallel . Find a.
Based on the corresponding angles theorem, a = 30°.
What is the Corresponding Angles Theorem?Two angles that correspond to each other are congruent based on the corresponding angles theorem.
Thus:
5x + x = 180° (linear pair)
6x = 180
x = 180/6
x = 30
Therefore:
x = a (corresponding angles)
a = 30°
Therefore, based on the corresponding angles theorem, a = 30°.
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Hassan made a scale drawing of a house and its lot. The scale he used was 1 inch : 10 feet. The backyard is 5 inches long in the drawing. How long is the actual yard?
Answer:
Its 50 ft
Step-by-step explanation:
just multiply 5 by 10 because 1 inch is 10 feet
The line through (1,6) perpendicular to the line x + y=5 meets the curve y=2x + 4/x again at p. Find the coordinates of p
Answer: (4,9)
Step-by-step explanation: