Answer:
125feet
Step-by-step explanation:
Given the equation that modeled the height expressed as h = -16t^2 + 80t + 25, where h is the height and t is the time in seconds.
The arrow reaches the maximum height at dh/dt = 0
dh/dt = -32t + 80
0= -32t+80
32t = 80
t = 80/32
t = 2.5secs
substitute t = 2.5 into the formula;
h = -16t^2 + 80t + 25
h = -16(2.5)^2 + 80(2.5) + 25
h = -16(6.25)+225
h = -100+225
h = 125
Hence the maximum height the arrow reaches is 125feet
HELP PLEASE == PGR is an isosceles triangle in which PQ=PR
M and N are points on PQ and PR such that angle MRQ and angle NQR.
Prove that triangles QNR and RMQ are congruent
Answer:
Angle NQR congruent to Angle MRQ because it is given
Side QR is congruent to side QR because they are the same side
Angle NRQ is congruent to angle MQR because they are the equal angles of an isosceles triangle
Triangle QNR is congruent to Triangle RMQ by ASA
Step-by-step explanation:
It's actually pretty simple. first you should be able to know angles NRQ and MQR are congruent because triangle PQR is isosceles . So now if you look at the two other triangles you can say angle NQR is congruent to angle MRQ, because of the information given, and with wht I just explained angles NRQ and MQR are congruent. So now you can say the two triangles are similar by the angle angle postulate.
To Say they are congruent since QR is the same for both triangles you can use the ASA postulate
please answer me this question
Answer:
x=0.4 and y=0.6
Step-by-step explanation:
Given :
[tex]\frac{x}{2} +y=0.8\\x+2y=1.6.......(1)\\\frac{7}{x+y/2} =10\\\frac{7}{2x+y/2} =10\\\frac{7*2}{2x+y} =10\\\frac{14}{2x+y} =10\\14=10(2x+y)\\14=20x+10y.....(2)[/tex]
From solving above equation (1) and (2)
x=0.4
y=0.6
Solve by finding the square roots: 3x2 - 9 = 3
Answer:
x= 2 or x= -2
Step-by-step explanation:
3x² -9= 3
+9 on both sides:
3x²= 9 +3
Simplify:
3x²= 12
Divide by 3 on both sides:
x² =4
Square root both sides:
[tex]x = \sqrt{4} [/tex]
x= 2 or x= -2
3
Find the value of x. Round your answer to the nearest tenth.
22
X
58
Answer:
13.7
Step-by-step explanation:
take 58 degree as reference angle
using tan rule
tan 58 =opposite/adjacent
1.600=22/x
x=22/1.600
x=13.75
x=13.7
Read the table.
What does the middle column show?
the names of the countries on the table
how long residents are likely to live
the average education of residents
how the birth rate has changed
Answer:
How long the residents are likely to live
hope this helps u out
Answer:
How long the residents are likely to live
Step-by-step explanation:
just did it on edge 2022
hope this helps
what is 4b + 6 ≤ 18. I don't know how to solve it and don't know the answer.
Answer:
b≤3
Step-by-step explanation:
For this problem, you want to solve it similarly to linear equations.
We start with 4b+6≤18.
Subtracting 6 from both sides gives 4b≤12.
From there, in order to isolate the b, we must divide both sides by 4, leaving b≤3.
**This content involves solving linear inequalities, which you may wish to revise. I'm always happy to help!
find p(0),p(1)in (a)p(X)=X⁴_X/2+3X (b) p(X)=2+y+2y²_y³
Answer:
i hope this will help u
Step-by-step explanation:
if p(0) so answer is 0
if p(1) so answer is 7/2 or 3.5
You roll 2 6-sided dice 50 times. How many times should you theoretically get a sum of 7?
Okay, so it sounds like you just need a die to do this assignment. If you need a website, you can use this: https://freeonlinedice.com/#dice
There should already be one die here. Just click "roll" and record the value at the top of the screen labeled "total." Do this 30 times and write down the values each time.
I am sorry for not giving you the answer right away, I would but my school blocked the website of the link I put above.
solve for x.round to the nearest tenth, if necessary.
please help me i need help
Answer:
108, 375 m²
Step-by-step explanation:
Rectangular field area: 280 m·390 m=109200 m²
Barn area: 25 m·33 m=825 m²
Subtract
109200 m²-825 m²=108375 m²
Length of radius r ?
Answer: 10
We know that the radius of a circle is always perpendicular to the tangent. And so apply the Pythagoras theorem.
Answer:
The answer would be 10.
Step-by-step explanation:
We're doing C^2 - B^2 = A^2 since we know the hypotenus. 26 x 26 is 676 and 24 x 24 is 576. Subtract the two products to get 100. The square root of 100 is 10.
(6x-4) (3x+4)º find the value of x.
Answer:
x = 20
Step-by-step explanation:
The angles form a straight line so they add to 180 degrees
6x-4 + 3x+4 = 180
Combine like terms
9x=180
Divide by 9
9x/9 = 180/9
x= 20
20
Hope this helps! :)
______________
The graph represents the piecewise function:
f(x)= { __, if -1 ≤ x ≤ 1; __, if 3 ≤ x ≤ 5 }
Answer:
4, x-1
Step-by-step explanation:
The first piece of this function goes from -1 to 1. Since that part of the function is a horizontal line at y=4, and has no slope, this first part is just 4.
The second piece of this function goes from 3 to 5. This piece does have a slope that you can either solve or just from reading the graph will give you a slope of 1. Since one of the points is (3, 2), we can figure out that the y-intercept is -1. (You can also just extend the line across the y-axis). When putting this equation together we get x-1 being the second part.
The solution is:
The graph represents the piecewise function:
f(x)= { 4, if -1 ≤ x ≤ 1;
(x - 1), if 3 ≤ x ≤ 5 }
What is graph?In mathematics, the graph of a function f is the set of ordered pairs, where {\displaystyle f(x)=y.} In the common case where x and f(x) are real numbers, these pairs are Cartesian coordinates of points in two-dimensional space and thus form a subset of this plane.
here, we have,
The first piece of this function goes from -1 to 1.
Since that part of the function is a horizontal line at y=4, and has no slope, this first part is just 4.
so, we have,
The second piece of this function goes from 3 to 5.
This piece does have a slope that you can either solve or just from reading the graph will give you a slope of 1.
Since one of the points is (3, 2), we can figure out that the y-intercept is -1. (You can also just extend the line across the y-axis).
When putting this equation together we get x-1 being the second part.
Hence, The solution is:
The graph represents the piecewise function:
f(x)= { 4, if -1 ≤ x ≤ 1;
(x - 1), if 3 ≤ x ≤ 5 }
To learn more on graph click:
brainly.com/question/17267403
#SPJ7
Question 6 of 10
If the coefficient of determination for a data set containing 8 points is 1, how
many of the data points must lie on the regression line for the data set?
A. 8
B. 6
C. 7
D. 5
SUBMIS
Answer:
5Sabihin mo po Kung maliAnswer:
A. 8
Step-by-step explanation:
Keep in mind my answer choices are in a different order.
find the value of x.
I NEED HELP WITH MATH
38.
f(3)
= 5(3) - 2
= 15 - 2
= 13
39.
5x - 20 = 0
=> 5x = 0 + 20
=> 5x = 20
=> x = 20/5
=> x = 4
38.)
option H
F(3) = 13
39.)
option C
40.)
{-4 , 8}
7) If £1 = €1.14.
Work out what €144 is in pounds.
Answer:
[tex]126\frac{6}{19}[/tex] £
Step-by-step explanation:
£1 = €1.14 /[tex]*\frac{144}{1.14}[/tex]
£[tex]\frac{144}{1.14}[/tex]=144€= [tex]126\frac{6}{19} \\[/tex]£
.find x in the following figure .plsss helppp!!!
For each equation choose a value for x and then solve to find the corresponding y value that makes that equation true. Write your solutions in the form of an ordered pair (x,y).
1)6x=7y
2) 5x+3y=9
3) y+5-(1/3)x =7
Answer:
3) y+5-(1/3)x =7
Step-by-step explanation:
Find at least three solutions to the equation y = 2x, and graph the solutions ... points to make a line. Find the slope of the line. y=3x- x. 3x-1 . -6 -5 -4 -3 -2 -1 ... Solve the following equation for y, and then identify the slope of the line
If 13 candy bars cost $21.97, how much do 20 candy bars cost?
pretty simple just fill in the blank from the drop down menu please !
Answer:
vertical hope this helps
Answer:
vertical, goodluck
Step-by-step explanation:
I took this
A communication tower is built on the slope of a hill. A surveyor, 50m uphill from
the base of the tower, measures an angle of 50 between the ground and the top
of the tower. The angle from the top of the tower to the surveyor is 60°.
Calculate the height of the tower to the nearest metre. [A2]
А
60
tower
50
O surveyor
50 m
B
Answer:
Step-by-step explanation:
a
The height of the tower is 44.23 meters after applying the sin law in a provided triangle.
What is the trigonometric ratio?The trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.
We have:
A communication tower is built on the slope of a hill.
A surveyor, 50m uphill from the base of the tower, measures an angle of 50 between the ground and the top of the tower.
Applying sin law:
sin50/AB = sin60/50
AB is the height of the tower.
sin50/AB = 0.0173
AB = 44.227 ≈ 44.23 meters
Thus, the height of the tower is 44.23 meters after applying the sin law in a provided triangle.
Learn more about trigonometry here:
brainly.com/question/26719838
#SPJ2
im gonna die. help me pls
Answer:
m = 14n, 6 and 8
Step-by-step explanation:
The m row is always 14x larger than the N.
The next two would be 6 and then 8
4 and one-third divided by 5 and StartFraction 1 over 6 EndFraction The reciprocal of a fraction must be found to solve the problem. What is the reciprocal fraction that is required?
Answer:
multiply by the reciprocal of 31/6
Step-by-step explanation:
4 and one-third = 4 1/3
5 and StartFraction 1 over 6 EndFraction = 5 1/6
Therefore,
4 1/3 ÷ 5 1/6
= 13/3 ÷ 31/6
To solve the problem, multiply 13/3 by the reciprocal of 31/6
The reciprocal of 31/6 = 6/31
So,
13/3 ÷ 31/6
= 13/3 × 6/31
= (13 * 6) / (3 * 31)
= 78 / 93
= 26/31
What is the last answer and how is it wrong?
Answer and Step-by-step explanation:
I think it wants you to keep it in the form it showed. I remember doing this this year, so it should be:
[tex]\frac{f(a+h)-f(a)}{h} = \frac{3a +3h + 6 -(3a + 6) }{h}[/tex]
Then after this step you distribute the negative, and combine like terms. After, you divide the h and you get 3 as your answer.
IF it still doesn't work like how I showed it, contact your teacher for help, saying you are pretty sure you got it right (if you put mine and it didn't work) but it is saying it is incorrect.
#teamtrees #PAW (Plant And Water)
HELP!!! Chords AB and BD intersect in circle O as shown in the diagram. Two of the angle measurements are marked. What is mCED?
A. 24 degrees
B. 65 degrees
C. 72 degrees
D. 130 degrees
Answer:
48+82)/2 = 65
Answer C
Step-by-step explanation:
48+82)/2 = 65
(I just had this exact same question so I saw the picture)
Match each equation with the correct description of what happened. Draw a line or write the letter to show the
matches. One of the descriptions will not have a match. Write two equations showing the described move.
3x +7 = 5x
12x + 3 = 6
10 - 6x = 4 + 5x
-3(4x - 3) = -15
4x - 3 = 5
5x = 12
-3 1
5x = -36
7 = 2x
7 - 6x = 1 + 5x
4x + 1 = 2
Add -3x to
Add 3x to each
Add-3 to each Multiply each
side.
side by%.
Multiply each
side by -3.
Multiply each
side by -%
each side.
side
E
F
A
B
Answer:
m
Step-by-step explanation:
pls help. I WILL KISS U!4!2!3! (REAL!!) pls n ty.
Answer:
AB=36
Step-by-step explanation:
BC=AC
AB=√(AC²+BC²)=√[(18√2)²+(18√2)²]=√(2×18²×2)=2×18=36
180 miles in 3 hours, what's the unit rate?
Answer:
60 or 60:1
Step-by-step explanation:
You will have to divide 180 by 3 which is 60 or you can divide 160 / 3 = 60 & divide 3 / 3 = 1.
Answer:
60
Step-by-step explanation:
60
Members of the drama club held a car wash to raise funds for their spring musical. They
charged $3 to wash a car and $5 to wash a pick-up truck or a sport utility vehicle. If they
earned a total of $425 by washing a total of 125 vehicles, how many of each did they wash?
Use c to represent the number of cars and to represent the number of trucks.
Answer:
100 cars
25 trucks
Step-by-step explanation:
$3c + $5t = $425
c + t = 125 vehicles
($3 * 100) + ($5 * 25) = $425
100 + 25 = 125
Therefore, they washed 100 cars and 25 trucks
Hope this helps!