Answer:
3
Step-by-step explanation:
its 8 because if you round it by 1 then you get 3
Kahleela starts the engine on her small private airplane. The engine drives a propeller with a radius of 8.5 feet and its centerline 11.5 feet above the ground. At idle, the propeller rotates at a constant speed of approximately 800 revolutions per minute. The height of one propeller tip as a function of time is given by h = 11.5 + 8.5 sin(800t), where h is the height in feet and t is the time in minutes. Find h when t = 5.5 minutes.
Answer:
a=21.1
Step-by-step explanation:
You can use the given (incorrect) equation and fill in the value of t to find h:
h = 12.5 +9sin(750(3.5)) = 3.68 . . . . feet
__
Or, you can use the correct equation, or just your knowledge of revolutions:
h = 12.5 +9sin(750(2π·3.5)) = 12.5 . . . . feet
in 3.5 minutes at 750 revolutions per minute, the propeller makes 2625 full revolutions, so is back where it started — at 12.5 feet above the ground.
Answer:
A. 3.1 feet is the answer i believe.........
Step-by-step explanation:
Find a cubic function with the given zeros.
3, -4, 7 (5 points)
f(x) = x3 - 6x2 - 19x + 84
f(x) = x3 - 6x2 - 19x - 84
f(x) = x3 + 6x2 - 19x + 84
f(x) = x3 - 6x2 + 19x + 84
Step-by-step explanation: its a+b which equals 182
IM EAT SOMETHING
Try to guess what im eating (you have 3 tries)
sour but a little sweet
DARK red
LOTS of seed
wish you luck
Answer:
Raspberry?
Step-by-step explanation:
Did I get it???
Hope you have a great day! :)
I think the answer is a pomegranate...
PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLEASE!!
Answer:
1) C
2) B
3) A,B, and C
4) C
5) B
6) C
Step-by-step explanation:
Answer:
1. C
2. B
3. A, B, C
4. C
5. B
6. C
Step-by-step explanation:
1. You can remember the name by just looking at their positions- they alternate and they're on the exterior
2. They are supplementary meaning they add to 180°, set the angle measures up to 180 and solve for x!
76 + 2x = 180
2x = 104
x = 52
3. Equilateral trinagles have these qualities
4. Those hashes on the sides of the triangles signify those sides are the same length- that means the angles opposite of those sides share the same angle measure. If you know two angles are 35, and the last angle is 2x, you can set up an equation:
35 + 35+ 2x = 180
70 + 2x = 180
2x = 110
x = 55
5. That square means a right angle which equals 90°, like question 4, you set up an equation!
90 + 5x + 5x = 180
90 + 10x = 180
10x = 90
x = 9
6. Set up a proportion.
12 : 30 // 12(x) = 30, x = 2.5
8 : y // 8(2.5) = y, y = 20
The angle of elevation from a boat to the top of a lighthouse is 50°.
If the boat is 150 feet from the base of the lighthouse, how tall is the lighthouse?
Round answer to the nearest foot.
9514 1404 393
Answer:
179 ft
Step-by-step explanation:
The applicable trig relation is ...
Tan = Opposite/Adjacent.
The height of the lighthouse is the opposite side of the right triangle. The adjacent side to the angle of elevation from the boat is the distance to the lighthouse base. Then ...
tan(50°) = height/(150 ft)
height = (150 ft)(tan(50°)) ≈ 178.76 ft
The height of the lighthouse is about 179 feet.
please help, and i will mark you BRAINLIEST
Solve:
A. 27
B. 343
C. 729
D. 216
Answer:
729
Step-by-step explanation:
9 x 9 = 81
81 x 9 = 729
Help me please...........
Answer:
6/19
Step-by-step explanation:
Answer:
6/19 subtracting 3 each time form the numerator
Step-by-step explanation:
Pls help! I WILL MARK BRAINLIEST IF YOU ARE CORRECT
Pls helpppp I need the answer asap
Answer:
CASH = 7284
Step-by-step explanation:
MATHEMATICS = 12345123678
CASH = ?
Find what number the letters represent:
M = 1
A = 2
T = 3
H = 4
E = 5
I = 6
C = 7
S = 8
Then, replace the numbers in the word CASH:
C = 7
A = 2
S = 8
H = 4
Therefore, the number is 7284.
Hope this helps and please mark Brainliest :)
Help please :( I am stuck
Answer: We all hate it when we are stuck! The slope is -1/2.
Step-by-step explanation: To find the slope, figure out the change of x divided by the change of y. The change of y is -1, and the change of x is 2. Therefore, the slope of the line is -1/2.
may you guys please help me (see picture)
Answer:
20
Step-by-step explanation:
We know that a triangle's angles must add up to 180 which means that
100+40+2x=180
solve for x
140+2x=180
2x=40
x=20
Please help I’m failing math and I might get held back
Answer:
[tex]tan 56 = \frac{26}{x}[/tex]
Step-by-step explanation:
[tex]tangent = \frac{opposite}{adjacent}[/tex]
Side z is the hypotenuse, since it is opposite the right angle.
Side x is the adjacent, since it is next to the angle you are solving for.
The side measuring 26 is the opposite, since it is opposite the angle you are solving for.
solve the derivative of f(x)= x^4e^tanx
Answer:
Step-by-step explanation:
How many yards are in 126 feet?
1 yard = 3 feet
everyone if you can help that would be great
Answer:
the answer is 2.87
Step-by-step explanation:
use the pythagorean theorem
2^2+b^2=4^2
that goes to b= 3.5
for the triangle with x you also need to use the pythagorean theorem
[tex]2^{2}[/tex]+[tex]x^{2}[/tex]=[tex]3.5^{2}[/tex]
4+[tex]x^{2}[/tex]=12.25
subtract 4 on both sides
[tex]x^{2}[/tex]=8.25
[tex]\sqrt{x}[/tex]=[tex]\sqrt{8.25}[/tex]
x=2.87
please someone help me no one willl
Answer:
2/36 (5.556%)
I believe so correct me if I am wrong
Com oordon
9)
Consider the sequence of steps to solve the equation: 2(x – 4) + 6x = 9x – 10
Given = 2(x - 4) + 6x = 9x - 10
Step 1 = 2x - 8 + 6x = 9x - 10
Step 2 = 2x + 6x - 8 = 9x - 10
Step 3 = 8x - 8 = 9x - 10
Step 4 = 8x – 8x - 8 = 9x - 8x - 10
Step 5 = 0 - 8 = x - 10
Step 6 = -8 = x - 10
Step 7 = -8 + 10 = x - 10 + 10
Step 8 = 2 = x + 0
Step 9 = 2 = x
Which step in solving this equation is justified by the distributive property
Answer:
Step 1
Step-by-step explanation:
The problem distributed 2 into x and -4 which resulted in 2x - 8
Help please I have a timer and it almost over
Answer:
2/25 or 0.08%
Step-by-step explanation:
one step equations word problems. I ONLY NEED 3-8!!!!
simplfy
(9b + 5) + (3b – 6)
What is the equation of the line in the graph? explanation, please.
A. y = –1/3x – 1
B. y = 7/3x + 5
C. y = –5x + 7
D. y = –1/2x – 7
the measure of the hypotenuse is? (side c)
The answer is 25
Sooooo to find the hypotenuse you gotta use this formula: a^2+b^2=c^2.
Lin runs five minutes around the track in 6 minutes. How many laps per minute is that ?
Answer:
1.2
Step-by-step explanation:
2(x + 5) = 30 what does x equal?
Answer:
x = 10
Step-by-step explanation:
(2x10) + (2x5) = 30
Answer:
10
Step-by-step explanation:
2(x+5)=30
30÷2=15
15-5=10
x=10
what is the answer to this question
Answer:
the height is 4
Step-by-step explanation:
it is a right triangle and also a perfect 3-4-5 right triangle
[tex] {3}^{2} + {h}^{2} \: equals \: {5}^{2} [/tex]
[tex]9 + {h}^{2} \: eqauls \: 25[/tex]
subtract 9 from 25
[tex] {h}^{2} \: equals \: 16[/tex]
then you square root 16
[tex] \sqrt{16} [/tex]
and now you height is 4
Use the formula C= dxd
Pix diameter = Circumference
A group of students stood in a circle to play a game. The circle had a diameter of 22 meters.
Which measurement is closest to the circumference of the circle in meters?
A 34.54 m
B 1,519.76 m
C 379.94 m
D 69.08 m
Answer:
69.08m
Step-by-step explanation:
Circumference of a circle = πd where
d is the diameter of the circle
Given
diameter = 22metres
circumference of the circle = 3.14(22)
circumference of the circle = 69.08m
Hence the circumference of the circle is 69.08m
Answer:
d i think sorry if im wronge
Step-by-step explanation:
Given this expression:
[tex]8 {x}^{3} + 16 {x}^{2} - 4x + 25[/tex]
what is the coefficient with the
[tex] {x}^{2} [/tex]
term.
Answer:
the coefficient of x^2 is 16
Step-by-step explanation:
is the number in front of the variable and exponent
change 4x - 5y = 10 into slope intercept form and graph
Answer:
Slope intercept form: y = 4/5x - 2
Step-by-step explanation:
(subtract 4x from both sides) -5y = -4x + 10
(divide everything by -5) y = 4/5x - 2
To graph, place a point at (0,-2), and then travel up 4 and over right 5 (or down 4 and to the left 5) to place the next point, then draw a line through the points
convert the fraction 4/11 to a decimal using long division
Answer:
Step-by-step explanation:
Answer:
0.36
Step-by-step explanation:
I used the long division method.
Hope this helps:)
How do I solve for X? 20 points.
Step-by-step explanation:
[tex] \underline{ \underline{ \text{Given}}} : [/tex]
[tex] \angle \: ABC = 65 \degree[/tex][tex] \underline{ \underline{ \text{To \: Find}}} : [/tex]
Value of x[tex] \underline{ \underline { \text{Solution}}} : [/tex]
[tex] \angle \: ACB = \angle \: ABC = 65 \degree[/tex] [ Base angles of isosceles triangle are equal ]
[tex] x \degree + 65 \degree + 65 \degree = 180 \degree[/tex] [ Sum of angle of a triangle ]
⟼ [tex] x \degree + 130 \degree = 180 \degree[/tex]
⟼ [tex] x \degree = 180 \degree - 130 \degree[/tex]
⟼ [tex] x = 50 \degree[/tex]
[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt{x = 50 \degree}}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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