Answer:
163.5m/s
Step-by-step explanation:
Given the following
distance travelled = 20metres
acceleration = 4m/s^2
final velocity = 164m/s
Required
Initial velocity u
Using the equation of motion
v^2 = u^2 + 2aS
Substitute
164^2 = u^2 + 2(4)(20)
26,896 = u^2 + 160
u^2 = 26,896 - 160
u^2 = 27,736
u = √27,736
u = 163.5m/s
Hence the initial velocity is 163.5m/s
For each fraction, select the most appropriate estimate. 36 40 choose.. 1 3 choose.. 70 100 choose.. 1 8 choose.. Options: Closest to 0 Closest to one half Closest to 1
Answer:
Convert each fraction to its percentage form:
= 36 / 40
= 90%
= 1/3
= 33.3%
= 70/100
= 70%
= 1 / 8
= 12.5%
Looking at the percentages:
= 36 / 40 is closest to 1.
= 1/3 and 70/100 are closest to one half which is 50%
= 1/8 is closest to 0.
can someone please Solve this equation for me 2x – 3 = 9
Answer:
x=6
Step-by-step explanation:
Hello There!
Our whole objective is to isolate the variable (x) by using inverse operations
2x-3=9
to get rid of the -3 we add 3
Remember whatever we do to one side we have to do to the other side so we add 3 to each side
-3+3 cancels out
9+3=12
now we have
12=2x
now to get rid of the 2 we divide by 2
so we divide each side by 2
2x/2=x
12/2=6
we´re left with
x=6
hey I'm chloe can you help me, i will give Brainlest, Thank you :)
Cylender A has a radius of 4 inches and height of 2 inches. Cylinder B has a radius of 2 inches. What is the height of cylinder B if both cylinders have the same volume?
Answer:
Cylinder B: The height would be 8 inches.
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
V = A * h
CA = 4² = 16 * 2 = 32π
CB = 2² = 4 * 8 = 32π
$3.16. What is the unit price? *
Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a radius of 11 feet and a height of 18 feet. Container B has a radius of 12 feet and a height of 14 feet. Container A is full of water and the water is pumped into Container B until Conainter B is completely full.
To the nearest tenth, what is the percent of Container A that is full after the pumping is complete?
Answer: The percentage ≅ 48.4%
Step-by-step explanation:
* Lets revise how to find the volume of a container shaped cylinder
- The volume of any container = area of its base × its height
- The base of the cylinder is a circle, area circle = 2 π r,
where r is the length of its radius
* In container A:
∵ r = 13 feet , height = 13 feet
∴ Its volume = π (13)² × (13) = 2197π feet³
* In container B:
∵ r = 9 feet , height = 14 feet
∴ Its volume = π (9)² × (14) = 1134π feet³
* So to fill container B from container A, you will take from
container A a volume of 1134π feet³
- The volume of water left in container A = 2197π - 1134π = 1063π feet³
* To find the percentage of the water that is full after pumping
is complete, divide the volume of water left in container A
by the original volume of the container multiplied by 100
∴ The percentage = (1063π/2197π) × 100 = 48.3841 ≅ 48.4%
Michaela caught 3 fish, which weigh a total of 19 1/2 pounds. One fish weighs 7 5/8 pounds and another weighs 5 3/4 pounds. How does the third fish weigh? i’m in fifth grade.
Answer:
ANSWER: 6 1/8
Step-by-step explanation:
Steps:
7 5/8 + 5 3/4
7 5/8 + 5 6/8
12 11/8
13 3/8
19 1/2 - 13 3/8
19 4/8 - 13 3/8
6 1/8
ANSWER: 6 1/8
A rectangle has a length of 7 cm and a width of (3x+4)cm. Which expression represents the perimeter?
Answer:
2{7 + (3x + 4)} represents the perimeter of the rectangle
Find the area of the polygon.
2cm 2cm 3m
Answer:
If its a specific shape then probably the formula would be different.
If it were to be a parallelogram then multiply all given lengths
2 x 2 x 3 = 12cm
James had a collection of 400 baseball cards at the beginning of the summer. After the summer, James had traded some of his baseball cards and now he has only 388 baseball cards. What is the percent decrease of his baseball card collection?
Answer:
3%
Step-by-step explanation:
find the mean of the given data. 147 141 120 124 128
[tex] \frac{2}{2m - 1} - \frac{1}{m + 2} = 1 \frac{2}{3} [/tex]
Answer:
m = 1
Step-by-step explanation:
2(m+2) - (2m-1) = 5
(m+2)(2m-1) 3
2m² -1m + 4m -2 = 3
2m² + 3m - 5 = 0
(2m+5)(m-1) = 0
m = 1 This is the only value that satisfies the equation
m = -5/2
Geometry, please help
Answer:
Answer below.
Step-by-step explanation:
CDEF = MSKX
FCD = XMS
ED = XS
CFE = MXK
XK = FE
find the area of the figure. please need help
Answer:
24
Step-by-step explanation:
help i’ll give brainliest
Answer:
the last one
Step-by-step explanation:
it's going right 6 so its increasing and going down it's decreasing by 3
Answer:
Each x-coordinate decreased by 6, and each y-coordinate increased by 3.
Step-by-step explanation:
The x coordinates went back 6, and the y coordinates went upward by 3.
if the width of a football field is (x-3) and the length is (4x-3), what is the area? need before 1:40 on 3-19-2021
Answer:
4x² - 15x + 9
Step-by-step explanation:
To find the area of a rectangle, you multiply the length by the width.
length: 4x - 3
width: x - 3
Multiply these expressions.
(4x - 3)(x - 3)
To multiply two binomials, you want to FOIL them
FOIL: first | outer | inner | last
(4x - 3)(x - 3)
F: 4x • x = 4x²
O: 4x • -3 = -12x
I: -3 • x = -3x
L: -3 • -3 = 9
Combine these values.
4x² - 12x - 3x + 9
Combine the variables that can be combined.
4x² - 15x + 9
This is the area as an expression.
Hope this helps!
Explain how you would find 90% of 120 will give brainliest if correct
Find the exact value of cos0. Express your answer as a fraction.
Trigonometric Functions -
[tex] \cos = \frac{adjacent}{hypotenuse} [/tex]
Find the opposite side, first of all.
Pythagorean Theorem -
[tex]a^{2} + b^{2} = c^{2} [/tex]
Input the hypotenuse and opposite sides to find b^2.
[tex]49 + {b}^{2} = 64[/tex]
Minus 49 from equations to get b^2 by itself.
[tex] {b}^{2} = 15[/tex]
Square root b^2 and 15 to get b by itself.
[tex]b = \sqrt{15} [/tex]
Now we can get to the trigonometry functioms!
[tex] \frac{ \sqrt{15} }{8} [/tex]
Divide them up, then find the percentage!
48% or...
[tex] \frac{ \sqrt{15} }{8} [/tex]
An angle measures 56° more than the measure of its supplementary angle. What is the measure of each angle?
Answer:
62,118
Step-by-step explanation:
Let one angle = x
So, other angle = x +56
x +x +56 = 180 {Combine like terms}
2x + 5 6 = 180 {Subtract 56 form both sides}
2x = 180 - 56
2x = 124 {Divide both sides by 2}
x = 124/2
x = 62
Other angle = 62 + 56 = 118
how do you prove something as a parallelogram?
Roland bought 6 tickets for him and his family to attend the high school basketball game. He bought a combination of student tickets for $3 each and adult tickets for $5 each. If he spent a total of $24 on the tickets, which system of equations could be used to find the number of student tickets, x, and the number of adult tickets, y, he bought?
Answer:
RM 21 for student and for adults
PLEASE HELP WILL GIVE BRAINLIEST!!!
Answer:
angle U ( the third option down)
Step-by-step explanation:
What is the area of the image below?
I will mark brainliest!!!
Answer:
116 square cm
Step-by-step explanation:
Find the area of each shape
7*10=70
4*4=16
1/2(15)*4=30
70+16+30=116
Of the last 6 trains to arrive at Norwood Station, 3 were on
time. What is the experimental probability that the next train
to arrive will be on time?
write the answer as a decimal rounded to the nearest tenth
Answer:
5/6 chance
Step-by-step explanation:
A sports tournament has d teams. Each team has 15 players. Using d, write an expression for the total number of players in the tournament.
Answer:
d x 15=total players.
Step-by-step explanation:
dx15=total number of players in the tournament.
Answer:
15d
Step-by-step explanation:
If there are d teams and 15 people in each team d x 15 = 15d
Justin's pay is represented by this line graph.
Pay (dollars)
300
280
260
240
220
200
180
160
140
120
100
80
60
40+
20+
0
10 20 30 40
Time Worked (hours)
How much is Justin paid for one hour of work?
$6.50
$7.50
$8.00
please help me with this and explain. It’s due in a bit :/
Answer:
choice D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
they have similar angles and similar sides, and the description choice D gives is also correct
Find the total surface area of a cuboid whose length,breadth,and height are 9cm,7cm,and 4cm respectively.pls help me guys.and I will make you brainliest.it is not false I am saying true
Answer:
length=9 cm breadth=7cm height=4cm area of a cubid=: we know that area of a cuboid= 252
Answer:
254
Step-by-step explanation:
Length : a
Width : b
Height : c
Surface : s
s = 2(ab + bc + ca)
s = 2(9x7 + 7x4 + 4x9)
s = 2(63 + 28 + 36)
s = 2(127)
s = 2 x 127
s = 254
find the value of x3-1 if x= 0, 1,-1
Step-by-step explanation:
Given
x³ - 1
When x = 0
0³ - 1 = - 1When x = 1
1³ - 1 = 0when x = - 1
( -1)³ - 1 = - 2Hope it will help :)❤
make p the subject of the formula A=p+prt÷100
Answer:
p = a - prt x 100
Step-by-step explanation:
a = p + prt ÷ 100
a - prt = p ÷ 100
a - prt x 100 = p
Hope this helps. :)
You deposit $200 in an account earning 8% interest compounded annually. How much will you have in the account in 20 years?
You would have saved up $932, gaining a total of $732 saved in interests