Answers
Answer:
i think the answer is C.7
sorry if its not right
Step-by-step explanation:
replace the f(x) with 0 and solve for x
Answer:
The time taken by the ball to reach the ground is 7 seconds.
Please give me brainliest :)
Related Questions
help a brotha out please
Answers
Second power =^2
i dont get this please help!
Answers
2. To solve the area of the rectangle which is (length times width) do 2x9 = 18
3. To solve the area of the triangle which is (length times width divided by 2) do 2x4/2 =4
4. Area = 18 + 4, 22 square units
I need help with this math problem
Answers
Answer:
tui kobic tor hada kobic furi
A bridge being designed will cross the river at a right angle. The equation of the left bank of the river is j = 2x+8. The center of the bridge will pass through (0,2). What is the equation of the line representing the bridge?
Answers
This is the same as y = -0.5x+2
==========================================================
Explanation:
Refer to the diagram below.
The blue line is the graph of y = 2x+8, which is the left bank of the river.
For now, ignore the y = (-1/2)x+2 in the diagram and pretend we don't know that just yet. The red line is the bridge and it's some linear equation in the form y = mx+b. We're told the bridge is perpendicular to the river, so the bridge must also be perpendicular to the riverbank.
The blue line has slope m = 2. Apply the negative reciprocal to this to end up with -1/2. This is the perpendicular slope, and the slope of the red line. Note how the two slopes (2 and -1/2) multiply to -1. Any two perpendicular lines will have their slopes multiply to -1, as long as neither line is vertical or horizontal.
Since we want the bridge to pass through (0,2), this must mean the y intercept is b = 2.
So with m = -1/2 and b = 2, we go from y = mx+b to y = (-1/2)x + 2 which is the equation of the bridge shown in red.
This is the same as y = -0.5x + 2 since -1/2 = -0.5
Two cubical boxes of side a cm are placed next to one another to form a cuboid. The total surface area of the cuboid so formed is?
Answers
Answer: 60
Step-by-step explanation:
can someone explain this to me T÷4 = 16
Answers
Answer:
t = 64
Step-by-step explanation:
Multiply by 4 on both sides and you get t = 64 :)
-5+x-7 what does x equal
Answers
Answer:
Since there is no equal sign x can not have an actual value, the equation simplified would be
x-12
Step-by-step explanation:
The way to solve this is to combine like terms
-5 + ( -7 ) = -12
If you have any questions feel free to ask - Mark
Solve the following trigonometric equation:
Answers
Answer:
45, 135, 195 and 345degrees
Step-by-step explanation:
Solve the following trigonometric equation:
2sin^22x + sin2x - 1 = 0
Let P = sin2x
Substitute
2P^2 - P - 1 = 0
Factorize;
2P^2 - 2P+P - 1 = 0
2P(P-1)+1(P-1) = 0
(2P+1)(P-1) == 0
2P+1 = 0 and P -1 = 0
P = -1/2 and 1
Since P = sin2x
sin2x = 1
2x = arcsin1
2x = 90
x = 90/2
x = 45degrees
Since sin is positive in the second quadrant
x = 180 - 45
x = 135 degrees
sin2x = -1/2
2x = arcsin(-0.5)
2x = -30
x = -15
Since sin is negative in the third and 4th quadrant
x = 180 + 15 = 195
x = 360 - 15 = 345
Hence the value of x are 45, 135, 195 and 345degrees
Jada completed her homework in 40 minutes. It took Andre 175% of Jada's time to complete the same homework. a) Who took longer to complete their homework? b) How long did it take Andre to complete his homework? Show your thinking on the tape diagram or another model.
add explanation too please
Answers
Answer: I think it took Andre 70 minutes
Step-by-step explanation:
Answer:
A.) Andre B.) 70 min
Step-by-step explanation:
A.) the key words are that it took andre 175% of Jada's time
B.)just take Jadars time 40 and multiply it by 175% or 1.75 as for the digram show Jadars as 100% and Andres as an extra 175% sorry i cant realy draw one right now
If a shirt cost 9.99, but there was a sale that said 15% of the original price, how much was the shirt?
Answers
Answer: $8.49
To solve this problem, you want to find out how much 15% of 9.99 is. To do that you have to multiply 9.99 by 0.15 (which equals 1.4985) to find out how much the shirt was discounted. Then take that number and subtract 9.99 from it which gives you 8.4915 (or $8.49 rounded)
Hope this helped you!
A piano that cost Sunset Planos 83, 250 has a markup rate of 52%. Find the selling price of the piano
Answers
Answer:
$160,096.15
Step-by-step explanation:
the key word in this problem is the words markup price meaning an increase of 52% from the $83,250 so divide the $83,250 by 52% or .52
Help me with this one math problem:)
Answers
Answer:
1/2
Step-by-step explanation:
It rises 1 and goes 2 units to the left, which is what rise/run means
And a tip:
I can tell you're using Goggle Forms. If you hit ctrl + U, you can find the answers to the questions in the code
Solve for x:
x =?
is it;
45?
30?
22.5?
Answers
Answer:
x+3x=90
90/4= 22.5
x-22.5
Answer:
22.5
Step-by-step explanation:
its a 90 degree angle
90=3x+x
90=4x
90/4=x
x=22.5
What does the variable "a" stand for in exponential functions represented by the equation y = a(b)x *
1.Starting amount
2.base
3.rate
4.multiplier
Answers
Answer:
Starting amount is the answer
What are the coordinates of point Q?
Answers
Answer:
(0,-3) because its the coordinate
can someone help me with this?
What is the solution to the system of linear equations graphed below?
A. (0,4)
B. (4,1/2)
C. (1/2,4)
D. (0,3)
Answers
Answer:
b. (4,1/2)
Step-by-step explanation:
plz hurry x3=−8 thanks have a good day
Answers
Answer:
x=-2
Step-by-step explanation:
-2 * -2 * -2 = -8
Find the other endpoint of the line segment with the given endpoint (-1,9) and midpoint (-9,-10).
Answers
Answer:
19/8
Step-by-step explanation:
Can use formula y2-y1/x2-x1 :
-10-9/-9--1
-19/-8
How many solutions exist for the given equation?
1/2(x + 12) = 4x-1
zero
one
two
infinitely many
Answers
Answer:
one
Step-by-step explanation:
Given
[tex]\frac{1}{2}[/tex] (x + 12) = 4x - 1 ( multiply through by 2 to clear the fraction )
x + 12 = 8x - 2 ( subtract x from both sides )
12 = 7x - 2 ( add 2 to both sides )
14 = 7x ( divide both sides by 7 )
2 = x
There is one solution to the equation, that is x = 2
A swimmer is training for a upcoming meet he swims 10 laps the first day each day he increases the number of laps he swims by 5 which best describes the function
Answers
10+5=15
He swam 15 laps the second day
I’ll give brainliest !!! Pls help!
Khafre was a son of Khufu. He also had a pyramid built, but it was not as big as his father's. The volume of the Pyramid of Khafre is about
2,115,072 cubic meters, and its height is about 136 meters. Approximate the length of each side of the base.
Answers
Answer:
S = √3*2,115,072/ 136 =216
Step-by-step explanation:
A camera has a listed price of $833.99 before tax. If the sales tax rate is 8.5%, find the total cost of the camera with sales
tax included.
Round your answer to the nearest cent, as necessary.
Answers
Answer:
904.88
Step-by-step explanation:
8.5% of 833.99 is 70.88915
70.88915 + 833.99 = 904.87915
904.87915 rounded to the closest cent is 904.88
Stay safe! <3
pls help question is on picture
Answers
Answer:
We know that a triangle has angles that equal to 180°
[tex]45 + x + 77 + x + 72 = 180 \\ 194 + 2x = 180 \\ 2x = 180 - 194 \\ 2x = - 14 \\ x = - 7[/tex]
A= x+72
=-7+72
=65°
Lines m and n are parallel. Which angles are supplementary to ∠4? Select each correct answer. ∠1 ∠2 ∠3 ∠5 ∠6 ∠7 ∠8
Answers
Answer:
2
Step-by-step explanation:
2 that was my answer.
Answer:
2
Step-by-step explanation:
took test
Jerry played with friends today, all at different times. He played with Tommy for hours, then Nathan for hours, then Chris for hours.
How many hours did Jerry play with his friends today?
Answers
Answer:
twelve hours
Step-by-step explanation:
Answer:
Undefined
Step-by-step explanation:
You told us that Jerry played with all of his friends for hours. You did not give us a specific number of hours for at least two of them. Therefore, we can conclude nothing.
It is undefined.
what is an indulgence?
Answers
Answer:
In the teaching of the Catholic Church, an indulgence is "a way to reduce the amount of punishment one has to undergo for sins".
Answer:
In the teaching of the Catholic Church, an indulgence is "a way to reduce the amount of punishment one has to undergo for sins"
Step-by-step explanation:
Indulgence is the action or fact of indulging. (in the Roman Catholic Church) a grant by the Pope of remission of the temporal punishment in purgatory still due for sins after absolution. The unrestricted sale of indulgences by pardoners was a widespread abuse during the later Middle Ages.
Indulgence sentence example. The indulgence accentuated the division between those who accepted and those who rejected it. German chocolates are my only indulgence . I went to a party last night, and there out of five ladies three were Roman Catholics and had the Pope's indulgence for doing woolwork on Sundays.
I'm not sure what the answer is.
Answers
Answer:
we can make some assumptions b/c of the marks. on the sides, the double marks means they are the same, and the single marks are also the same length. because those sides are the same lengths.. we can just add up all the sides to find the length around the shape... or the perimeter of it.
Step-by-step explanation:
I'll start with the 14 on the left, and go counter clock wise
14 + 6 + 9 + 5 + 9 + 7 + 14 + (6+7+5) = Perimeter
the last numbers in the parenthesis are from the sides opposite of the long top side, the parts of the other sides adds up to the long top side... sooo,
Perimeter = 82 ( I added in my head , so use a calculator to double check )
Im confused I need a bit of help
Answers
Answer:
A) 6x
Step-by-step explanation:
4x + 3x = 7x
7x - 1x (or just x) = 6x
hope this helped :)
A herd of 14 horses has 3 white and some black horses. What is the ratio of
black horses to all horses?
Answers
Answer:
11:14
Step-by-step explanation:
to find the amount of black horse you need to subtract 3 from 14
14 - 3 = 11
then you put it together
in this case the black horses were mentioned before all the horses so it would be:
11:14
1, 3/2 , 9,4 ...
Find the 9th term HELP ASAP
Answers
2
3
2
3
gives the next term. In other words,
a
n
=
a
1
⋅
r
n
−
1
a
n
=
a
1
⋅
r
n
-
1
.
Geometric Sequence:
r
=
2
3
r
=
2
3
This is the form of a geometric sequence.
a
n
=
a
1
r
n
−
1
a
n
=
a
1
r
n
-
1
Substitute in the values of
a
1
=
1
2
a
1
=
1
2
and
r
=
2
3
r
=
2
3
.
a
n
=
(
1
2
)
⋅
(
2
3
)
n
−
1
a
n
=
(
1
2
)
⋅
(
2
3
)
n
-
1
Apply the product rule to
2
3
2
3
.
a
n
=
1
2
⋅
2
n
−
1
3
n
−
1
a
n
=
1
2
⋅
2
n
-
1
3
n
-
1
Multiply
1
2
1
2
and
2
n
−
1
3
n
−
1
2
n
-
1
3
n
-
1
.
a
n
=
2
n
−
1
2
⋅
3
n
−
1
a
n
=
2
n
-
1
2
⋅
3
n
-
1
Cancel the common factor of
2
n
−
1
2
n
-
1
and
2
2
.
Tap for more steps...
a
n
=
2
n
−
2
3
n
−
1
a
n
=
2
n
-
2
3
n
-
1
Substitute in the value of
n
n
to find the
n
n
th term.
a
5
=
2
(
5
)
−
2
3
(
5
)
−
1
a
5
=
2
(
5
)
-
2
3
(
5
)
-
1
Simplify the numerator.
Tap for more steps...
a
5
=
8
3
(
5
)
−
1
a
5
=
8
3
(
5
)
-
1
Simplify the denominator.
Tap for more steps...
a
5
=
8
81
a
5
=
8
81