Please help, Picture included.
Jason jumps from a plane at an altitude of 1000m. his parachute opens after 10 seconds. The graph shows the relationship between his altitude and time. How far does he fall in the first 40 seconds?
A) 400m
B) 500m
C) 600m
D) 700m
Answers
Jason falls 800m in the first 40 seconds.
Explanation:
To find how far Jason falls in the first 40 seconds, we need to look at the graph provided. The graph shows that for the first 10 seconds, his altitude decreases from 1000m to 200m. So, in the first 10 seconds, he falls 1000m - 200m = 800m. Then, from 10 seconds to 40 seconds, his altitude stays constant at 200m, so he does not fall any further. Therefore, Jason falls a total of 800m in the first 40 seconds.
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Related Questions
HeLp PlEasE
A triangular lawn has sides that are 8 m and 12 m long with an included angle of 51°.
What is the area of this lawn?
Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.
Answers
.. A = (1/2)ab*sin(C)
.. = (1/2)(8 m)(12 m)sin(51°)
area ≈ 37.3 m^2
what is the area of this triangle 13in 94 degrees 7.5 in
Drake wants to save $750 so that he can take a class on computer analysis for cars. The class is being held on various dates over the next several months. Drake is planning to take the class 6 weeks from now, so he plans to save $125 each week. Unfortunately, Drake had to take out a little money from his savings in the 3rd week. After 4 weeks, Drake has $470. He knows that he must adjust his plan in order to meet his goal. Drake came up with the following options: Option A: Stay with saving the original amount each week but take the class a week later than originally planned. Option B: Increase the amount of money he saves each week by $15 from his original plan. Which of the following is a true statement? a. Only option A will allow him to meet his goal. b. Only option B will allow him to meet his goal. c. Both options A and B will allow him to meet his goal. d. Neither option A nor option B will allow him to meet his goal.
Answers
answer- C
total money required = 750
total money saved = 470
weeks left = 2
money earned in each week = 125
money earned in 2 weeks = 250
470 + 250 = 720( so, drake is short of 30 )
option A- by postponing the classes for 1 week, he will earn 125 more, so it is an option to meet his goal as 125>30
option B- by increasing the savings by 15 for two weeks, he will save 30 more which is the amount drake needs. so , it is also a good option
Sean has $65 to spend on CDs. If each CD costs $6.98, about how many CDs can he buy?
Answers
Answer:
9 (did it on college board)
Step-by-step explanation:
write the resulting function if the transformation f(x+3)+9 is applied on the function f(x)=x^2+1
a) x^2+13
b)x^2+19
c)x^2+6x+19
d)x^2+3x+13
Answers
f (x) = x ^ 2 + 1
We apply the transformation f (x + 3) +9:
g (x) = (x + 3) ^ 2 + 1 + 9
Rewriting we have:
g (x) = (x + 3) * (x + 3) + 1 + 9
g (x) = (x ^ 2 + 3x + 3x + 9) + 1 + 9
g (x) = (x ^ 2 + 6x + 9) + 1 + 9
g (x) = x ^ 2 + 6x + 9 + 1 + 9
g (x) = x ^ 2 + 6x + 19
Answer:
the resulting function if the transformation f (x + 3) +9 is applied on the function f (x) = x ^ 2 + 1 is:
c) x ^ 2 + 6x + 19
If Martha earns $3.25 per hour for babysitting, how much will she earn in: 1.5 hours? 2.5 hours? 3.5 hours?
Answers
IN 1.5 HOURS=3.25*1.5=4.88 DOLLARS
IN 2.5 HOURS=3.25*2.5=8.13 DOLLARS
IN 3.5 HOURS=3.25*3.5=11.38 DOLLARS
Martha in:
1.5 hours will make: $4.88
2.5 hours will make: $8.13
3.5 hours will make: $11.38
name the sine, cosine, and tangent of angle a in the figure below
Answers
now, we can simplify all those to
[tex]\bf cos(A)=\cfrac{24}{12\sqrt{5}}\implies \cfrac{2}{\sqrt{5}}\quad \stackrel{rationalizing~it}{\implies }\quad \cfrac{2\sqrt{5}}{5} \\\\\\ sin(A)=\cfrac{12}{12\sqrt{5}}\implies \cfrac{1}{\sqrt{5}}\quad \stackrel{rationalizing~it}{\implies }\quad\cfrac{\sqrt{5}}{5} \\\\\\ tan(A)=\cfrac{12}{24}\implies \cfrac{1}{2}[/tex]
PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER
Answers
What is 60% of 60? need help with this one can some one show me how to do it?
Answers
60 x 0.6 = 36
If we wanted to do it another way, we could multiply 60 by 0.5 and 0.1 seperately and add those numbers up.
[tex]\dfrac x{60}=\dfrac{60}{100}=60\%[/tex]
Multiply both sides by 60, so that
[tex]\dfrac{60x}{60}=\dfrac{60^2}{100}\implies x=\dfrac{3600}{100}=36[/tex]
Another way of doing it: you can easily find that 10% of 60 is 6. Then 60% would be 6 times 10%, and 6 times 6 is 36.
Choose the correct simplification of the expression (a2)3. a5 a8 a a6
Answers
Answer:
The correct answer is A to the 6th power, A^6
Step-by-step explanation:
First, apply the exponent rule. (a^b)^c = a^bc
You would get a^2*3 (* means times) (^ means to the power)
Second refine.
You would get A^6.
The answer is A^6.
99 POINTS!!!!! FAST
Which set represents the domain of the function shown?
{(−3, 6), (0, 2), (4, 7), (11, 15)}
A. {(6, −3), (2, 0), (7, 4), (15, 11)}
B. {2, 6, 7, 15}
C. {−3, 0, 4, 11}
D. {−3, 0, 2, 4, 6, 7, 11, 15}
(P.S. The 99 points were obviously fake XD)
Answers
The Domain of the function {(−3, 6), (0, 2), (4, 7), (11, 15)} is
What is Domain of Function?The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f(x) make up this set. A function's range is the collection of values it can take as input.
Given:
Set :{(−3, 6), (0, 2), (4, 7), (11, 15)}
So, the Domain is the input value
Domain = { -3, 0, 4, 11}
and, the range is output value
Range= {6, 2, 7, 15}
Hence, the domain is { -3, 0, 4, 11}.
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draw and label an example of two parallel lines that are perpendicular to a third line.
Answers
The result of rounding the whole number 53,679,012 to the nearest millions place is: 53,000,000. 50,000,000. 53,600,000. 54,000,000.
Answers
Final answer:
The number 53,679,012 rounded to the nearest million is 54,000,000. The digit in the hundred thousands place determines whether to round up or down. In this case, since it's a 6 (which is >= 5), we round up.
Explanation:
Rounding Whole Numbers to the Nearest Million
To round the whole number 53,679,012 to the nearest million, we need to look at the digit in the hundred thousands place, which is 6. Since this digit is 5 or greater, we round up. Therefore, we increase the digit in the millions place by one, giving us 54,000,000 as the rounded number to the nearest million.
For example, consider another number like 52,700,000. Using the same rounding principle, since the digit in the hundred thousands place is 7, which is greater than 5, we would round up to 53,000,000.
When rounding large numbers, the key is to look at the digit immediately to the right of the place value you are rounding to. If this digit is 5 or higher, you round up, and if it is 4 or lower, you round down.
The elevator in the Empire State Building can pass 80 floors in 45 seconds. How many floors can it pass in 9 seconds?
Answers
Which function represents a line with a slope of −4 and a y-intercept of −2?
A) y = 4x − 2
B) y = −4x + 2
C) y = −4x − 2
D) y = −2x − 4
Answers
Answer:
C) [tex]y = -4x - 2[/tex]
Step-by-step explanation:
The general equation of a line in the xy plane is as follows:
[tex]y = mx + b[/tex]
where [tex]m[/tex] is the slope of the line, and [tex]b[/tex] is the intercept with the y axis.
In this case we want a line with a slope of -4, therefore:
[tex]m = -4[/tex]
and we also want a y-intercept of -2, so:
[tex]b = -2[/tex]
Substituting in the general equation of the straight line:
[tex]y = mx + b[/tex]
⇒[tex]y = -4x-2[/tex]
wich is option C
PLEASE ANSWER
This graph shows a portion of an odd function. Use the graph to complete the table of values.
Answers
Answer:
The complete table is shown below.
Step-by-step explanation:
The given function be represented by f(x).
Since, the function f(x) is an odd function.
So, [tex]f(-x)=-f(x)[/tex].
On substituting the values of x, we get,
[tex]f(-2)=-f(2)=-2[/tex]
[tex]f(-3)=-f(3)=-1[/tex]
[tex]f(-4)=-f(4)=-2[/tex]
[tex]f(-6)=-f(6)=-3[/tex]
Thus, the corresponding table is given by,
x f(x)
-2 -2
-3 -1
-4 -2
-6 -3
Answer:
x f(x)
-2 -2
-3 -1
-4 -2
-6 -3
Step-by-step explanation:
edge 2020
ASAP PLEASE:
Using your knowledge of circles, label the following on the given diagram: chord, tangent, radius, secant, point of tangency and diameter. Name a minor arc and a major arc.
Answers
Blue line is a secant
Red is radius
the top purpulish pink is tangent
the one from C to A is chord
minor arc would be AD
point of tangency is the yellow point
The museum of science in boston estimated that 64% of all visitors came from within the state. on sunday, 2,500 people attended the museum. how many attended the museum from out of state?
Answers
Percentage of visitors who come from outside will be (100-64)=36%
The total number of attendees is 2500
the total number of of people who came from outside the state will be:
36/100×2500
=900 visitors
First, calculate the number of attendees from within the state by multiplying the total by 64% to get 1,600 people. Subtract this from the total to find the number of out-of-state attendees, 900 people.
Explanation:This is a problem of percentage utilization and subtraction. First, we must determine the number of in-state attendees by multiplying the total number of attendees (2500 people) by the given percentage of in-state visitors (64%).
So, 2500 people x 0.64 = 1600 people.
These are the people who attended from within the state. To find out how many visitors came from out of state, we subtract this number from the total: 2500 people - 1600 people = 900 people. Therefore, 900 people attended the museum from out of state on Sunday.
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Solve the equation. Show all steps and work. Then check your answers (show all work). Finally, write the solution set.
x+1=√9x-11
Answers
[tex]x+1=\sqrt{9x-11}\\ (x+1)^2=9x-11\\\ x²+2x+1-9x+11=0\\ x^2-7x+12=0\\ x²-4x-3x+12=0\\ x(x-4)-3(x-4)=0\\ (x-4)(x-3)=0\\ x=4\ or\ x=3 [/tex]
Sol={3,4}
(4,3) is the required solution set for the given equation
Given equation is x+1=√9x-11
Thus solving above equation for x :
[tex]x+1=\sqrt{9x-11}\\[/tex]
Squaring throughout we get,
[tex](x+1)^{2} =9x-11\\x^{2} +2x+1=9x-11\\x^2+2x-9x+1+11=0\\x^2-7x+12=0\\x^2-3x-4x+12=0\\x(x-3)-4(x-3)=0\\(x-4)(x-3)=0\\[/tex]
Thus we get :
Either (x-4) = 0 or (x-3) = 0
Thus we have x = 4 or x = 3
Hence x = 4 or x = 3 is the solution set
PLZ HELPP FAST
Solve the triangle. A=44 degrees, a = 7,b=8
Answers
Explanation:
1) Use the law of sines:
sin(A) sin(B)
----------- = --------- =>
a b
2) Solve for B:
sin(B) = b * sin(A) / a = 8 * sin(44°) / 7 = 0.79389528
=> B = arcsin(0.79389528) = 52.55°
3) A + B + C = 180° => C = 180° - A - B = 180° - 44° - 52.55° = 83.45°
4) Use the law of sines again:
sin(A) sin(C)
------------- = -------------
a c
5) Solve for c:
c = sin(C) * a / sin(A) = sin(83.45°) * 7 / sin(44°) = 10.0
Answer: a = 7, b = 8, c = 10.
Help with this question.
Answers
(x,y)
(cos[theta], sin[theta])
(4,-8)
So for cos to be POSITIVE, it can only be in either Quadrant I, or Quadrant IV
Quad I = (+,+)
Quad IV = (+,-) (Our cord has a negative sin, so that is it)
So it has to be in Quad IV, that is some information.
That narrows it down to either A or B.
If you have a calculator, you can put in:
cos(-2) or cos(-2/sq rt 5) i believe.... or its either the inverse, can’t entirely remember.
Im sorry I couldn’t help you more.
A manufacture of skateboards offered a 5/2/1 chain discount too many customers. Bobs sporting goods ordered 20 skateboards for a total of $625 list price. What was the net price of the skateboards?
Answers
1) Apply 5% discount to the original price.
2) Apply 2% discount to the result of step 1).
3) Apply 1% discount to the result of step 2).
We have then that the result will be given by:
625 * (0.95) * (0.98) * (0.99) = 576.05625 $
Then, the price of each skateboard is:
(576.05625) /20=28.8028125 $
Answer:
The net price of the skateboards was:
28.8028125 $
if mnp has vertices at m (-5,-7) , N (7,-2) andcp (2,10) is mnp isoscles?
Answers
now, clearly the longest side is MP, and for a triangle to be an isosceles, it has to have two equal sides, so two sides must be twins.
since MP is the longest one, that only leaves out NP and NM, are they twins?
[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\ \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &N&(~ 7 &,& -2~) % (c,d) &P&(~ 2 &,& 10~) \end{array}\\\\\\ % distance value d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ NP=\sqrt{[2-7]^2+[10-(-2)]^2}\implies NP=\sqrt{(2-7)^2+(10+2)^2} \\\\\\ NP=\sqrt{(-5)^2+12^2}\implies NP=\sqrt{25+144}\implies \boxed{NP=13}[/tex]
and now let's check NM
[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\ \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &N&(~ 7 &,& -2~) % (c,d) &M&(~ -5 &,& -7~) \end{array}~~~ \\\\\\ NM=\sqrt{[-5-7]^2+[-7-(-2)]^2}\\\\\\ NM=\sqrt{(-5-7)^2+(-7+2)^2} \\\\\\ NM=\sqrt{(-12)^2+(-5)^2}\implies NM=\sqrt{144+25}\implies \boxed{NM=13}[/tex]
ΔMNP IS isosceles.
A store has 20% off sale on coats.With this discount, the price of one coat is 34.50 Whats the price of the coat?
Answers
20% = 0.20
34.50 / 0.20 = 172.50
All four functions below are quadratic functions. Which function has the greatest maximum value? Answer options attached in pictures. (10 points!!)
Answers
Factor completely, then place the answer in the proper location on the grid. a ^2 - 25b ^2
Answers
Answer:
[tex](a+5b)(a-5b)[/tex]
Step-by-step explanation:
[tex]a^2 - 25b ^2[/tex]
Factor completely
write 25 in square form , 25= 5^2
[tex]a^2 -5^2b ^2[/tex]
[tex]a^2 -(5b)^2[/tex]
Apply difference of squares formula to factor it
[tex]x^2 - y^2 = (x+y)(x-y)[/tex]
[tex]a^2 -(5b)^2[/tex]
x= a and y=5b
[tex](a+5b)(a-5b)[/tex]
f(x) = 2x2 – 4x – 3
0 = 2x2 – 4x – 3
3 = 2(x2 – 2x)
3 + 1 = 2(x2 – 2x + 1)
4 = 2(x – 1)2
2 = (x – 1)2
± = x – 1
1 ± = x
Mica is solving for the zeros of a quadratic function by completing the square. Her work is shown. What error did Mica make?
ANSWER CHOICES
Mica should have set each x = 0 instead of f(x).
Mica should have added 2 to 3 instead of 1.
Mica should have multiplied both sides by 2 instead of dividing.
Mica should have subtracted 1 from both sides instead of adding.
Answers
Answer:
Mica should have added 2 to 3 instead of 1.
Step-by-step explanation:
f(x) = 2x^2 – 4x – 3
0 = 2x^2 – 4x – 3
Mica added 3 on boths sides and factored out 2
3 = 2(x^2 – 2x)
We have 2 outside the parenthesis , so we multiply 1 with 2 and add it one left side
3 + 1 = 2(x^2 – 2x + 1) Error in this step
The above step becomes 3 + 2 = 2(x^2 – 2x + 1)
Mica should have added 2 to 3 instead of 1.
The circle above has a radius of 9 cm. What is the area of the circle?
(Use PI = 3.14)
Answers
answer: 254.469
On this exercise is given that the radius of the circle is 9 cm and it is asked to find its area and use 3.14 as the value of π. Therefore, to find the area of the circle you should substitute the value of the radius and the value of pi into the formula A=πr^2.
A=πr^2
A=(3.14)(9)^2
A=(3.14)(81)
A=254.34
The area of the circle is 254.34 cubic centimeters.
PLEASE HELP ASSSAAAPPPPP
Answers
Brainliest?
It would mean a lot!
As viewed from a cliff 340 ft above sea level a ship is 450 feet from the shore what is the angle of depression from the cliff to the ship on the water below
Answers
To get the angle of depression we use the formula:
tan x=opposite/adjacent
where x is the angle of elavation
opposite is the height of the cliff
adjacent is the distance of the ship from the shore
thus
tan x=340/450
tan x=34/45
x=arctan 34/45
x=37.07
hence the angle of elevation= angle of depression=37.1°
A kite has a height of 36 inches and a width of 30 inches. Explain how to use the area formula for a triangle to find the area of the kite.
Answers
Height of the kite is = 36 inches.
Width of the kite is = 30 inches
One of the ways to find the area is to draw a vertical line to break the kite into two equal triangles. Mark the base as 36 inches and height as 15 inches .
Now we will use the formula [tex]area=\frac{1}{2}*base*height[/tex] to find the area of each triangle. Then we will add both the areas to find the area of the kite.
Area of 1 triangle = [tex]\frac{1}{2}*36*15[/tex] = 270 square inches
Area of the 2nd triangle is also = 270 square inches
Hence, area of the kite = 270+270 = 540 square inches
The area of the kite is 540 square inches
The dimension of the rectangle is given as:
Height = 36 inches. Width = 30 inches
The area of the kite is then calculated using:
[tex]Area = \frac 12 \times (Height \times Width)[/tex]
Substitute values for Height and Width
[tex]Area = \frac 12 \times (36 \times 30)[/tex]
Evaluate the expression in bracket
[tex]Area = \frac 12 \times 1080[/tex]
Evaluate the product
[tex]Area = 540[/tex]
Hence, the area of the kite is 540 square inches
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