Answer:
a. 8 heads. b. 1024 heads.
Step-by-step explanation:
a. How many heads would the Hydra have on the third day?
Since the Hydra's head doubles for every initial head that is cut off on each day, the number of heads the hydra has after each day is 2ⁿ where n = number of days. Now, the head increase of the Hydra form a geometric sequence with the first term as 2 since we initially had one head and was cut off to produce 2 heads. On the second day, two heads are cut off to produce four which is 2² and so on.
So, on the third day, we have 2³ heads = 8 heads.
b. And at the end of 10 days of trying to kill it?
At the end of 10 days we have n = 10 in 2ⁿ. So, 2¹⁰ = 1024 heads.
So, at the end of 10 days, the Hydra has 1024 heads.
A car covered a certain distance at a speed of 24 mph. While returning, the car covered the same distance at a speed of 16 mph. What was the average speed of the car for the entire journey?
Answer: On the average, your car was moving with a speed of 25 miles per hour.
Step-by-step explanation:
Step-by-step explanation:
MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Kayla was driving from Philadelphia to Florida, trying to remain at a constant speed as much as possible after she reached the highway. She travelled 139.5 miles after an hour and a half and then 395 miles after 5 hours. Which represents Kayla's speed (rate of change)?
Answer:
Step-by-step explanation:
Speed = change in distance/change in time
S= Δd/Δt
let d1 = 139.5miles
d2 = 395miles
t1 = 1.5 hrs
t2 = 5hrs
Δd = d2-d1
Δd = 395-139.5
Δd = 255.5miles
Δt = 5-1.5
Δt = 3.5hrs
Speed = 255.5/3.5
Speed = 73miles/hr
Hence Kayla's speed is 73miles/hour
help me plzzzzzzzzzzzzzzz
Answer:
7) √2 , π , 4.5. √2 ≈ 1.41 < π ≈ 3.14 < 4.5 = 4.5.
9) √3 , π , 7. √3 ≈ 1.73 < π ≈ 3.14 < 7 = 7.
10) -4 , 1.5, √8. -4 = -4 < 1.5 = 1.5 < √8 ≈ 2.83.
11) -5.5 , 3/2, √6. -5.5 = -5.5 < 3/2 = 1.5 < √6 ≈ 2.45.
12) 5/2 , 2.6 , 1 + √3 , √8. 5/2 = 2.5 < 2.6 = 2.6 < 1 + √3 ≈ 2.73 < √8 ≈ 2.83
12) People in order: Bryon, Justin, Rosa, Allie.
The two triangles are similar. Find the missing side length.
9.6
60
12
16
Answer: x = 9.6
Step-by-step explanation: 24/x * 20/8 (cross multiply)
20x = 192 (now divide)
x = 9.6
please helpppppppppp me please
Answer:
WITH WHATttttt
Step-by-step explanation:
PLEASE HELP!! i will mark as brainliest
Answer:
13
Step-by-step explanation:
I just added the numbers together.
5+-5 is 0 because they are the same numbers but with opposite signs.
Next 12+-2 is 10 because it is like 12-2.
Next adding the last 3 to 10 we get 13.
The final amount of yards they have are 13.
I hope this helps:)
can you tell me the answer please, i’d appreciate it sm. thanks
Answer:
Yeah... I think u got it right... sorry if I’m wrong
Step-by-step explanation:
===========================================================
Explanation:
The length of segment MN is the same as the distance from M to N
Count out the spaces from M to N to see that there are 5 spaces, so that's why choice A is the answer.
-------------
Or you can break it down like this:
There are 3 spaces from -3 to 0There are 2 spaces from 0 to 2So we have 3+2 = 5 spaces total between M and N.
-------------
A more formal approach:
Let M = -3 and N = 2
Now subtract and apply absolute value.
|M - N| = |-3-2| = |-5| = 5
or
|N - M| = |2-(-3)| = |2+3| = |5| = 5
Either way, we get a distance of 5 units.
Absolute value is used to ensure that the result is never negative.
The product of n and 5 is equal to 48
Answer:
9.6
Step-by-step explanation:
48/5 is 9.6 therefore n=9.6
what does 7x + 4 - 6 =
The Empire State Building weights about 7.3 x 10^8 pounds The one World Trade Center building weights abut 88,200,000 pounds what is the total weight in pounds of these two buildings? Expressing your answer in scientific notation in the from a x 10 what are the vaules of a and b
Answer:
8.1822x10^8
Step-by-step explanation:
PLS HELP! I WILL REWARD AND GOVE PUT BRAINLIEST!!
The choices for, “Which operation must be performed to isolate the variable?” Are
A. Add 7.6
B. Add 18.2
C. Subtract 7.6
D. Multiply 7.6
The choices for, “the solution to the equation is” are
A. X=7.6
B. X=10.6
C. X=18.2
D. X=25.8
Answer:
Add 7.6
D. x=25.8
Step-by-step explanation:
Answer:
Add 7.6
D. x=25.8
Step-by-step explanation:
You have $8.00 to make copies. Each copy (x) costs $0.40. Solve the inequality that represents the number of copies you can make.
Answer:
8≥0.4x (You can make 20 or less copies)
Step-by-step explanation:
8≥0.4x
20≥x
A tutoring job pays $222 for ten hours of work. If a tutor were to work for a total of thirty-five hours that week, how much will they make?
Answer:
$777
Step-by-step explanation:
35/10= 3.5
3.5x222= $777
The upper-left coordinates on a rectangle are (-1,4) and the upper-right coordinates are (3,4).The rectangle has a perimeter of 24 units Draw the answer on the coordinate planes
Answer:
The answer is below
Step-by-step explanation:
Perimeter of a rectangle = 2(length + breadth)
24 = 2(length + breadth)
length + breadth = 12
The distance between the points of the rectangle (-1, 4) and (3,4) is given as:
[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2+y_1)^2}\\ \\Distance=\sqrt{(3-(-1))^2+(4-4)^2}=4\ units[/tex]
The breadth = 4 units
Length + 4 = 12
Length = 8 units
The lower left x coordinate would be the same as the upper left x coordinate, let us assume that the lower left y coordinate = a
Hence lower left coordinate = (-1, -a). The distance between (-1,4) and (-1, -a) is the length = 6 units
[tex]6=\sqrt{(-1-(-1))^2+(-a-4)^2}\\ \\a=-10[/tex]
lower left coordinate = (-1, 10)
The lower right x coordinate would be the same as the upper right x coordinate, let us assume that the lower right y coordinate = -b
Hence lower right coordinate = (3, -b). The distance between (3, 4) and (3, -b) is the length = 6 units
[tex]6=\sqrt{(3-3)^2+(-b-4)^2}\\ \\b=-10[/tex]
lower right coordinate = (3, -10)
What is 3 +1 giving BRANIEST
Answer: 4
Step-by-step explanation:
1. Add 3 and 1
3+1 = 4
Your answer is 4
Answer:
I think it is 5 wait no
Step-by-step explanation:
Rich earns $25 every weekend babysitting. He wants to buy a new game system that costs $499. He already has $220 saved. What is the minimum number of weekends he will need to babysit in order to have at least the $499 he needs?
ASAP I only have 10 minutes
Answer:
12 weekends
Step-by-step explanation:
Round up to $500 to make it easier, he needs $500. with $220 Saved he needs $280 more ($500-$220). $280 / $25 per weekend is 11.2 weekends needed. He would need to work 12 weekends to get to his goal
Answer:
i trieddddddddddddd
Multiply.
8.6
×
7.3
=
Rotation 180° about the origin U'(0, 0), T'(-5, 0), S'(-3, 3)B) U'(0, 0), T'(0, -5), S'(-3, -3)C) T'(4, 5), S'(1, 3), U'(4, 0)D) U'(0, -5), T'(0, 0), S'(3, -2)
Answer:
The answer is below
Step-by-step explanation:
The question is not complete, but i would show how to solve it.
Transformation is the movement of a point from its initial location to a new location. If an object is transformed then all its points are also transformed. Types of transformation are reflection, dilation, rotation and translation.
Rotation is a type of transformation that turns an object about a fixed point. Rotation preserves the shape and size of the image. The rotation of point X(x, y) 180° about the origin gives a new point X'(-x, -y) i.e. both the x and y coordinate is negated.
Liam had a container of oatmeal that contained 5 and one-half cups of oatmeal. Liam ate StartFraction 4 over 9 EndFraction cup of oatmeal every morning before school for a week. Which is the best estimate of the number of cups of oatmeal that Liam had left in the container at the end of the five-day week?
2 and one-half
3
3 and one-half
5
9514 1404 393
Answer:
3 1/2
Step-by-step explanation:
The amount is reduced by 4/9 cup each day for 5 days, so the amount remaining is ...
(5 1/2) - 5(4/9) = 11/2 -20/9 = (99 -40)/18 = 59/18 = 3 5/18 ≈ 3.28 . . . cups
This value is (slightly) closer to 3.5 than to 3.0.
The best estimate of the remaining amount is 3 1/2 cups.
Answer:
three
Step-by-step explanation:
Charlie paid $39.25 for a cookbook he purchased from a book club. This was a saving of $3.19 off the regular price. What percent discount did the book club give Henry?
Answer:
The book club gave Henry a 8.13% discount.
Step-by-step explanation:
To determine the percent discount that the book club gave Henry given that you know the price of the cookbook and the amount of the discount, you can use a rule of three:
39.25 → 100%
3.19 → x
x=(3.19*100)/39.25
x=8.13%
According to this, the answer is that the book club gave Henry a 8.13% discount.
After 5 hours, Ernie had traveled 195 miles. If he travels at a constant speed, what was Ernie's speed in miles per hour?
Answer:
39 mph?
Step-by-step explanation:
I only say this cause 5 divided by 195 equals 39. So yeh.
Answer: 39 miles per hour
Step-by-step explanation:
For this problem, we divide 195 by 5 because he drove 195 miles in 5 hours.
195 ÷ 5 = 39
The answer to the question is 39. Hope this helps!
PLZ NEED HELP brainliast if right
Answer:
WHAT DO YOU NEED HELP ON, I CANNOT SEE THE IMAGE
SORRY
Step-by-step explanation:
Answer:
umm what's the question
Step-by-step explanation:
13x-12x+45•12=14-12x-10•5
Answer:
[tex]x=\frac{576}{11}[/tex]
Step-by-step explanation:
13x - 12x + 45 * 12 = 14 - 12x - 10.5
Multiply first
13x - 12x + 540 = 14 - 12x - 50
Combine like terms
x + 540 = 12x - 36
Subtract x from both sides
540 = 11x - 36
Add -36 to both sides
576 = 11x
Divide both sides by 11
[tex]x=\frac{576}{11}[/tex]
Hope this helps as pls do mark me brainliest if you can:)
Pls help me I’m stuck
Answer:
Step-by-step explanation: your picture is not there
Ronald brother told Mj to get the app BRAINLY It helps you with anything But Mj do not have nothing to use Mj ask his mom if she would by him a phone she said yes the phone cost $230 dollars but it didn't come with a charger so they bought a charger it cost $15 dollars how much does the charger cost
Answer:
If you mean in total if all of it then 245
please help. are they Parallel, perpendicular or neither
Answer:
Neither
Step-by-step explanation:
Parallel lines don't intersect
Answer:
Neither parallel or perpendicular.
Step-by-step explanation:
For AB A(-1,-4) and B(2, 11)
x1,y1 x2,y2
Gradient = (y2 - y1)/(x2 - x1)
= (11 - (-4))/(2 - (-1))
= 15/3 = 5.
For CD C(1 , 1) and D(4 , 10)
x1, y1 x2, y2
Gradient = (y2 - y1)/(x2 - x1)
= (10 - 1)/(4 - 1)
= 9/3 = 3
from the above they are neither parallel or perpendicular.
HELP MEEEEEE!!!!!!!!!!!???????
Answer:
7
Step-by-step explanation:
Multiply 1/8 by 56.
You can put a 1 under the 56 because the56/1 and 56 are identical.
1/8 * 56/1
Multiply numerators (1 & 56) and the denominators (8 & 1)
56/8
Simplify by dividing
7
One end of a spring is attached to a ceiling. When an object of mass m kilogram is attached to the other end of the spring, the spring stretches to a length of / centimeters as shown in the equation l = 24 +3.4m . What is m when l is 73?
please helpppp!
The value of the mass when I is 73 will be m = 14.4.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that when an object of mass m kilogram is attached to the other end of the spring, the spring stretches to a length of / centimeters as shown in the equation l = 24 +3.4m.
The mass will be calculated as below,
73 = 24 + 3.4m
49 = 3.4m
Divide by 3.4 into both sides
14.4 = m
To know more about an expression follow
https://brainly.com/question/20381624
#SPJ2
You can get 672 calories from eating 8 apples. How many calories can you get from eating 1 apple?
Step-by-step explanation:
672 divides by 8
=8.375
What is the slope of the line that passes through the points (4, 6) and (-16, -18)?
Write your answer in simplest form.
Answer:
7x3=45 so substitute
Step-by-step explanation: