Answer:
1.25 m
Step-by-step explanation:
Given that :
Initial height of drop = 20 meters
Rebound after each drop = 1/2 of height
Height after 4th rebound = 5th term of a geometric series
An = a1 * r^(n-1)
a1 = first term = initial drop height
r = common ratio = ratio of rebound per drop = 1/2 = 0.5
A5 = 20 * 0.5^(5 - 1)
A5 = 20 * 0.5^4
A5 = 20 * 0.0625
A5 = 1.25 m
Hence height after 4 reboubd = 1.25 m
Using another method :
1st bounce height = 20 * 0.5 = 10
2nd bounce height = 10 * 0.5 = 5
3rd bounce height = 5 * 0.5 = 2.5
4th bounce height = 2.5 * 0.5 = 1.25
I need help with this as fast as possible thanks bye
Answer:
153.9
Step-by-step explanation:
You use the formula πr^2 for the area, where r is the radius of the circle which is equal to half the diameter
Which characteristics best describe an acute isosceles triangle
Answer:
answer is A i and iv
two sides meet at 90°
two sides are equal in lenght
The mall is 6 miles west of the highway. The hospital is 12 miles west of the mall. How far, and in what direction, is the hospital from the highway?
Answer: 18 miles west
Step-by-step explanation:
The mall is west of the highway.
The hospital is then west of the mall.
If the hospital is west of the mall which is already to the west of the highway, the Hospital must be west of the highway as well.
The hospital is 12 miles west of the mall which is then 6 miles west of the highway. As they are both west, it is a continuous distance and we can simply add their distances up and assume the distance is linear.
The distance between the hospital and the highway is therefore:
= 12 + 6
= 18 miles west
Solve each of the following equations
Answer this question to get marked as brainliest!!!
A university has 40,110 students. In a random sample of 210 students, 14 speak three or more languages. Predict the number of students at the university who speak three or more languages. The expected number of students at the university who speak three or more languages is .
Line d has a slope of 3/2. Line e has a slope of -2/3. Are line d and line e parallel or
perpendicular?
Answer:
We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel. If the slopes are different, the lines are not parallel. Unlike parallel lines, perpendicular lines do intersect
What is 23 fl oz = ______ c
Answer:
2.875c
Step-by-step explanation:
What is a common factor for the two fractional terms
11
001 01
x and
?
The terms can be written as 5)
(x) and (11)
log
(x) y).
O 5
100 100
Weißt du Deutsch, ich kann vielleicht helfen
For ΔJNM, the following facts are given: KL || MN
KL = 8 ft MN = 10 ft JL = 3.2 ft MK = 1.5 ft
Answer the following:
a) Is ΔJNM ~ ΔJLK? Support your answer with a postulate or theorem. b) Find the length of JN. Show all your work.
c) Find the length of JK. Show all your work.
d) What is the area ratio of ΔJNM to ΔJLK? Show all your work.
Answer:
I havn't gotten c and d yet, but:
a) They are similar because of the Angle Angle Theorem
b) JN=4ft
in the sequence: 67, 55, 46, 34, 25,…, what number should come next?
a) 16
b) 13
c) 15
d) 19
Answer:
b) 13
Step-by-step explanation:
67 - 55 = 12
55 - 46 = 9
46 - 34 = 12
34 - 25 = 9
25 - x = 12
rearrange that so,
25 - 12 = x
x = 13
Answer:
b) 13
Step-by-step explanation:
67 - 12 = 55
55 - 9 = 46
46 - 12 = 34
34 - 9 = 25
pattern: subtract 12, subtract 9
the pattern tells us to subtract 12, so take take 25 and subtract 12 from it:
25 - 12 = 13
What is the day after the day after tomorrow if the day before the day before yesterday was Friday ?
Answer:
Wednesday
Step-by-step explanation:
Friday is the day before the day before yesterday
Saturday is the day before yesterday
Sunday is yesterday
Monday is today
Tuesday is tomorrow
Wednesday is the day after tomorrow
Answer:
i cant seem to find ur anwser it seems confusing
Step-by-step explanation:
it is confusing
Out of 28 cookies, 3/4 are chocolate chip. How many cookies are chocolate chip?
21 out of 28 cookies are chocolate chip
Answer:
21 cookies
Step-by-step explanation:
28 x 3/4 =
28 / 4 x 3 =
7 x 3 = 21
Hope that helps!
I -9I = ____
HELP HELP ME ME ASAP PLEASE
Answer:
9
Step-by-step explanation:
l l means absolute value
the absolute value of any negative number is the same number but positive
so the absolute value of -9 is positive 9
Answer:
9
Step-by-step explanation:
Absolute value (or the lines) makes everything inside of it positive, so |-9| = 9
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
C
Step-by-step explanation:
250 represent the amount of money that they started off with
1.05 represent how much the money in the account is increasing by
and x represent the amount of months that have passed
Solve for x. 5:1::6:x
Answer:
Step-by-step explanation:
5/1 = 6/x
5x = 6
x= 6/5
Answer:
x
=
15
Step-by-step explanation:
Which expression shows the total area of 5 rooms, if the
sides of 3 rooms measure 17 feet each, and the sides of
2 rooms measure 15 feet each?
Answer:
3084 sq. ft
Step-by-step explanation:
for the first three rooms,
area= 6l² = 6× 17² = 1734
for the next two rooms,
area= 6l² = 6×15² = 1350
total area = 3084
Max picked out an old Star Wars puzzle to put together. Out of the 250 pieces, he was missing 15.
What percentage of the pieces was he missing?
Answer:
ummm... like 6% Convert fraction (ratio) 15 / 250 Answer: 6%
Step-by-step explanation: i have brain i use it some times
help answer both plz!
Answer:
3.6666 (I didn't round)
Repeating decimal
Step-by-step explanation:
We know that
2/3
is the same as
2÷3
Therefore:
3 2/3 = 3+(2÷3) = 3 + 0.6666 =3.6666
A repeating decimal is one that keeps going and repeats a pattern. This is decimal keeps going and repeats a pattern so it is a repeating decimal.
A terminating decimal is one that terminates or ends. This decimal does not terminate or end. It keeps going.
Hope this helped.
Someone help and plz make sure it’s right plz! :)
Answer:
-21/4
Step-by-step explanation:
slope = y2-y1/ x2-x1
-18 - 3 / 17-13 = -21/4
Use what you know about the angle sum theorem for triangles and your algebra skills to solve for x and find the measure of all three angles:
Answer:
2x° = 45°, 3x° = 67.5°
Step-by-step explanation:
Sum of angles in a triangle = 180°
2x+3x+3x=180°
8x=180°
x=22.5°
2x=22.5°x2=45°
3x=22.5°x3=67.5°
[tex] x - 25 = 0[/tex]
in the sequence 113, 93, 77, 65, 57,…, what number should come next?
a) 55
b) 54
c) 53
d) 51
Your answer is:
C) 53
THANK YOU!!
∝ Sidhdi
The perimeter of a rectangle is 158 cm. If the length is 7 more than 3 times the width:
i)
Write an equation for the length (l) in terms of the width (w).
Use your understanding of simultaneous equations to determine the unknown
dimensions.
Find the area of the rectangle.
Enter the value for that makes the given equation true.
20−5(6+4)=4−6
Answer:
hi, there is no variable
Which expression is equivalent to 99 + 22? A. 11(9) + 2(1) B. 11(9 + 2) C. 9 + 2(11) D. (8 × 9) + (6 × 7)
Answer:
B
Step-by-step explanation:
They both equal 121
The diagram below shows a rectangle inside of a regular hexagon. the apothem of the hexagon is 17.32 units. to the nearest square unit, what is the area of the shaded region?
Answer:
your answer will be A)719 units²
Step-by-step explanation:
hope it helps ^_^
plsss help i’ll give brainliest if you give a correct answer
Answer:
it a
Step-by-step explanation:
Answer:
A (7)
Step-by-step explanation:
9w = 63
9 x 7 is 63,
9 x 6 = 54,
9 x 8 = 72,
9 x 9 = 81,
Please someone help me with this... and please thouroughly explain, i have no clue what to do.
144. Use the formula for the volume of a cone, since the answer is in terms of pi disregard the pi in the formula and solve using (r^2)(h/3) which will give you the answer in terms of pi.
What is the slope and y-intercept of the line y = 3x - 7?
Group of answer choices
The slope of the line is -7, and the y-intercept is (0, 3).
The slope of the line is 3, and the y-intercept is (0, -7).
Plz help ASAP!!!!
The slope of the line is -3, and the y-intercept is (0, 7).
The slope of the line is 7, and the y-intercept is (0, -3).
[tex]==================================[/tex]
the given equation is written in slope-intercept form, which looks like so:
[tex]\pmb{y=mx+b}[/tex]
where
[tex]\pmb{m}[/tex] is the slope of the line
[tex]\pmb{b}[/tex] is the y-intercept of the line
in order to determine the slope & the y-intercept, just look at the equation:
[tex]\pmb{y=3x-7}[/tex]
slope: [tex]\pmb{3}[/tex]
y-intercept: [tex]\pmb{-7}[/tex] or ( [tex]\pmb{0, -7}[/tex])
[tex]===================================[/tex]
note:-Hope everything is clear; if you need any more explanation, kindly let me know.
