What is the solution for x in the
system of the following
equations?
3x+4 y= 31
3x-4 y=-1
Answer:
5
Step-by-step explanation:
Yo can I get some help on this question please
Answer:
x=16
Step-by-step explanation:
x+15=6x-65
x+80=6x
80=5x
16=x
hope this helps :P
GEOMETRY-TRIG
Rampy Ronald is fixing to make a jump with his dirt bike across an 80-foot ravine full of lava. The ramp he’s going to hit to make the jump is 15 feet long, forms a 30° with the ground and ends 5 feet from the edge of the ravine. That said, if he hits the ramp at his bike’s full speed of 60mph, he’ll reach a maximum height of 30 feet.
6. From the start of the ramp to when he reaches his maximum height, how far will Rampy Ronald have traveled horizontally?
7. Is Rampy Ronald going to make the jump, or is he fixing to land in the ravine of lava and become Roasty Ronald? Give geometric constructions backed by mathematics to support your reasoning!!!
Answer:
6. The distance Rampy Ronald would have travelled horizontally is approximately 48.428 feet for an actual maximum height of 21.486 feet
7. Rampy Ronald is going to make the jump
Please find attached the graph of the motion of Rampy Ronald, created with Microsoft Excel
Step-by-step explanation:
6. The given parameters are;
The width of the ravine = 80 ft
The inclination of the ramp with which Rampy Ronald will jump = 30°
The distance from the edge of the ravine the ramp ends = 5 feet
The speed with which Rampy Ronald will make the jump = 60 mph
The maximum height he will reach = 30 feet
Therefore, we have;
The height of the end of the ramp = 15 × sin(30°) = 7.5
The height of the end of the ramp = 7.5 feet
The height of the jump = 30 - 7.5 = 22.5
The vertical velocity = 60 × sin(30°) = 30
The vertical velocity = 30 mph
The horizontal velocity = 60 × cos(30°) = 30·√3
The horizontal velocity = 30·√3 mph
From the kinematic equation, v² = u² - 2gh, we have;
u² = 2gh
h = u²/2g = 900/(2 × 32.17405) ≈ 13.986
The maximum height reached 13.986 + 7.5 = 21.486
From v = u - gt
t = u/g = 30/32.17405 ≈ 0.932
t ≈ 0.932 s
The distance Rampy Ronald would have travelled horizontally = 30·√3 × 0.932 ≈ 48.428
The distance Rampy Ronald would have travelled horizontally ≈ 48.428 feet
7. The time before Rampy Ronald reaches ground level again, is given by the following relation;
h = 1/2·g·t²
21.846 = 1/2 × 32.17405 × t²
t = √(21.846/16.087025) ≈ 1.165
t ≈ 1.366 s
The horizontal distance traveled is therefore;
The horizontal distance traveled from maximum height is 30·√3 × 1.165 ≈ 60.535
The horizontal distance traveled from maximum height is ≈ 70.979 feet
The total horizontal distance traveled ≈ 48.428 + 60.535 = 108.963
The total horizontal distance traveled ≈ 108.963 feet
The total horizontal distance required to make it across the ravine = 5 feet + 80 feet = 85 feet
Therefore, Rampy Ronald is going to make the jump
HELPPP ASAP WILL MARK BRAINILEST
Andy is correct! Andy has the function 4, his leading coefficient is negative, and his functions contains zeros. Hope this helps!
Here a easy question for yall.
Hannah has 10 apples and she gave her friend 5 out of it. how much does hannah has now?
Easy~ UwU
Answer:
5
Step-by-step explanation:
The answer is 5 because it just is
Answer:
5Step-by-step explanation:
__________________________________________________________
Hannah gave her friend 5, so now she has 5!
__________________________________________________________
We can solve this by subtracting!
__________________________________________________________
10 - 1 = 9
10 - 2 = 8
10 - 3 = 7
10 - 4 = 6
10 - 5 = 5
__________________________________________________________
Hope this helps! uwu
__________________________________________________________
HELPPP FASTTT PLEASE
Answer:
(3,-2)
Step-by-step explanation:
I used a graphing calculator to get the solution, attached is what I got with the graphing calculator.
hope this helps.
3 facts about "What is a Hurricane"?
How long will it be from December 18 from 8:25 am to December 24 to 4.30 pm
Find the hypotenuse, c, of the triangle.
А
4
B.
C С
12
Answer:
A.
Step-by-step explanation:
Solve the following system by using substitution:
x = -3y - 17
2x + 3y = -7
Answer:
x=10 and y=−9
Step-by-step explanation:
Answer:
(x,y) = (10,-9)
Step-by-step explanation:
x=-3y-17
2x+3y=-7
2(-3y-17)+3y=-7
y=-9
x=-3(-9)-17
x=10
Solve correctly and I’ll give brainliest.
Answer:
7
Step-by-step explanation:
-2 x 6 = -12
-6/1 ÷ -3/1 = 2
-12 - 2 = -14
-14 ÷ -2 = 7
ms. daring just finished a 7 mile run.
how long (in minutes) do you think it took ms. daring (she ran cross country in college even though she is more of a sprinter!)
Answer:
11.265 minutes.
Step-by-step explanation:
A minute is about a a kilometer so 7 miles is about 11.265 minutes.
Given the function f(x)= x^4 - 4x^3 -2, determine the absolute minimum value of ff on the closed interval [-2, 4].
Answer:
Absolute Minimum: (3,−29)
Step-by-step explanation:
Merida wrote the table of points below. Which explains whether or not Merida has described a proportional relationship, and why?
Answer:
B
Step-by-step explanation:
When graphed, it doesnt not pass through the origin, but it is completely staight/linear.
Answer:
d
Step-by-step explanation:
In a grocery store, a packet of chips that usually costs $12 is on sale for 30% off. What is the sale price after the discount?
Answer:
3 dollars 6 cents or 3.6
Step-by-step explanation:
you need to divide the 30 percent by the twelve dollars to get your answer
2.) Jennifer bought a shirt at Forever 21 for $21.50 after a 3% sales tax. What was the original price of the shirt?
Pls answer and expplain how you got it
Answer:
$20.87
Step-by-step explanation:
Divide 1.03 into 21.50
Find the percent increase. Round to the nearest percent.
From 95 books to 139 books.
The percent increase is __%
(I just need the answer, no need for explanation)
Answer:
32%
Step-by-step explanation:
at least twenty caters long
what is an equivalent fraction to 3/8 ? Find a common denominator for the pair of fractions. Then, write equivalent fractions with the common denominator. 3/8 and 9/28
Answer:
6 1/6
Step-by-step explanation:
A fraction that is equivalent to 3/8 is 6 1/6
can someone help me please !!!!!!
Answer: From top to bottom of the chart: -13, -6, 1, 8, 15
Step-by-step explanation:
You can solve the equation by putting the numbers in the graph (under the letter x) into the equation. Meaning when it says "-2", you can write 7(-2)+1, or 7 times negative 2 minus one, which equals -13. Do the same thing with the rest :]
Triangle B is a(n) ______________________ of Triangle A?
A) Reduction
B) Enlargement
Answer:
Enlargment
Step-by-step explanation:
Each week, high school students can collect a maximum of 347 cans of food for the town food pantry. What is the maximum number of cans that the high school students can collect in 35 weeks?
10,410 cans
10,415 cans
12,145 cans
12,245 cans
Answer:
12,145
Step-by-step explanation:
If 347 cans is the max PER week, and they have 35 weeks, then all we need to do is multiply 347 times 35.
347*35 = 12,145
The max amount of cans they can collect in 35 weeks is 12,145 cans.
Answer: 12,145
Step-by-step explanation:
Derive the equation, in the
form y = mx + b, for the line. (Look at the photo.)
Answer:
y=2x+1
Step-by-step explanation:
y=mx+c
y-intercept is 1
y=mx+1
gradient= rise/run= 2/1= 2
y=2x+1
I need help with this plz percent equations the question is blank % of 35 = 21
Answer:
60%
Step-by-step explanation:
fasfasdasfsadasfsadsfasdsad
Answer:
Is this just spam?
Step-by-step explanation:
If you need help let me know.
A recipe says that 2 cups of dry rice will serve 6 people. Complete the table as you answer the questions. Be prepared to explain your reasoning.
Find the slope of the line that passes through
(10, 1) and (5,2)
Answer:
-5
Step-by-step explanation:
2 - 1 = 1
5 - 10 = -5
-5 divided by 1 = -5
Find the total area:
8 cm
16 cm
29 cm
22 cm
Answer: 81, 664 is the total!
Step-by-step explanation:
Your aunt and uncle took turns driving on a 580-mile trip that took 10 hours. Your uncle drove at a constant speed of 60 mph and your aunt drove a constant speed of 55 mph. How long did each person drive?
A. Write the two equations.
B Solve the equations and give both answers.
Answer:
Aunt drove 4 hours
Uncle drove 6 hours.
Step-by-step explanation:
Equations:
580 = 55/x + 60/y
600 = 55x + 60y
Happy Holidays!
A taxi in myrtle beach charges $2 per mile and $1 per person. If a taxi cab ride for 2 people cost $12, how far did the taxi cab travel ( don’t include units (miles) in the answer)
Answer:
I belive the answer is 5
Step-by-step explanation:
$12- $2 for ppl= $10
$10÷$2 per mile = 5
According to a recent survey, the probability that the driver in a fatal vehicle accident is female (event F) is 0.2805. The probability that the driver is 24 years old or less (event A) is 0.1759. The probability that the driver is female and is 24 years old or less is 0.0424. Answer parts (a) through (d) below.
(a) Find the probability of FUA. P (FUA)Round to four decimal places as needed.)
(b) Find the probability of F'UA. P(FUA) (Round to four decimal places as needed.)
(c) Find the probability of FnA'
Question d:
(D) Find the probability of F'nA'
Answer:
0.4140
0.7619
0.2381
0.9576
Step-by-step explanation:
Given that :
Female in fatal accident P(F) = 0.2805
Driver is 24 years or less P(A) = 0.1759
Driver is female and 24 years or less P(FnA) = 0.0424
A.) Find the probability of FUA.
P(FUA) = P(F) + P(A) - P(FnA)
= 0.2805 + 0.1759 - 0.0424
= 0.4140
(b) Find the probability of F'UA.
P(F'UA) = 1 - P(F) + P(FnA)
= 1 - 0.2805 + 0.0424
= 0.7619
C.) P(FnA') = 1 - P(F'UA)
= 1 - 0.7619
= 0.2381
(d) Find the probability of F'nA'
P(F'nA') = (FnA)' = 1 - (FnA)
= 1 - 0.0424
= 0.9576