Answer:
10x²+8x
Step-by-step explanation:
times everything in the bracket by 2x
The function y = -16t+^2 40 represents the height y (in feet) of a water droplet t seconds after falling from an icicle. After how many seconds does the water droplet hit the ground? Round your answer to two decimal places.
Answer:
The water droplet will hit the ground 1.58 seconds after it started falling.
Step-by-step explanation:
The function:
y = -16*t^2 + 40
represents the height of a water droplet t seconds after falling from an icicle.
We want to find the value of t such that the water droplet hits the ground, and this will happen when y = 0.
Then we only need to solve the equation:
0 = y = -16*t^2 + 40
0 = -16*t^2 + 40
16*t^2 = 40
t^2 = 40/16
t = √(40/16) = 1.58
The water droplet will hit the ground 1.58 seconds after it started falling.
you don't have to do all of them
Answer: lol your using canvas
1. 63
2. D
3. B
4. A
Sorry for the bland explinations havin a bad day.
Step-by-step explanation:
1. The way we solve this is by adding the degrees 72 and 45. then we subtract it by 180. this is because in all triangles the angles always add up to 180 degrees.
2. Like question one what set of angles measures to 180 degrees.
3. The sides of a triangle should define the angle measurements. you can also see if its a triangle if the numbers are continues like 3,4,5 or in this case 4,5,6
4. like in questions 1 and 2 the angles of a triangle has to equal 180 degrees so 60 times 3 is 180 so each angle would have to be 60 degrees.
i need help this is dude tomorrow
The difference of a number and 4 is no more than 8
Can someone help!?
Considering the definition of an inequality, the number must be less than 12.
Definition of inequalityAn inequality is the existing inequality between two algebraic expressions, connected through the signs:
greater than >.less than <.less than or equal to ≤.greater than or equal to ≥.An inequality contains one or more unknown values called unknowns, in addition to certain known data.
Solving an inequality consists of finding all the values of the unknown for which the inequality relation holds.
Inequality in this caseIn this case, you know that the difference of a number and 4 is no more than 8.
Being "x" the number you want to know, and considering that the difference is the difference between two numbers or expressions, the inequality that expresses the previous relationship is
x - 4 < 8
Solving:
x < 8 +4
x < 12
Finally, the number must be less than 12.
Learn more about inequality:
https://brainly.com/question/17578702
https://brainly.com/question/25275758
https://brainly.com/question/14361489
https://brainly.com/question/1462764
5x^+20x +15=0
Pls help
Neptune is 4.5 billion kilometers from the
sun. Represent this number in scientific
notation
Answer:
4.5 x 10 ^9
Step-by-step explanation:
Answer:
4.5*10^9
Step-by-step explanation:
PLEASE I NEED HELP ASAP
10 grade geometry, help me pleaseeeee
Answer:
Obtuse
Step-by-step explanation:
[tex]10^{2} > 3^{2} + 9^{2}[/tex]
4.) Show that sec 0 sin 0 cot 0= 1 is an identity
Answer:
1/sin(0)+sin(0)+cos0/sin0= 1
What is 89% of 602 I really need the help someone help me
Answer:
535.78
Step-by-step explanation:
Dont how to explain
Segments AB,DC, and EC intersect at point C. Angle DCE measures 148. Find the value
Answer:
x = 16°
Step-by-step explanation:
We can see that AB is a straight line. The sum of angles on a straight line adds up to 180°
∠ACD + ∠DCE + ∠ECD = 180° (sum of angles on a straight line)
∠ACD = x, ∠DCE = 148, ∠ECD = x
substituting the respected values for the angles gives:
x + 148 + x = 180
2x + 148 = 180
subtracting 148 from both sides:
2x + 148 - 148 = 180 - 148
2x = 32
Dividing both sides by 2, to get x:
2x/2 = 32/2
x = 16°
Given the function f(x)= -3(x)^2 , find the value of f(4).
Step-by-step explanation:
f(x) = -3x²
f(4) = -3(4²)
= -48
QUICK !!! FAST 15 POINTS
I NEED HELP!!!!!
Answer:
ECB
Step-by-step explanation:
I noticed they looked exactly the same.
Answer:
It should be ΔABD, ΔECD, and ΔECD
Step-by-step explanation:
Since ΔABE is a right triangle, one angle must be 90° with a square to signify it.
3x+30=180 degrees, what is the value of the letter x in this problem?
Answer:
50
Step-by-step explanation:
180-30=150/3=50
3x + 30 = 180
-30 -30 subtract 30 on both sides, solve for 180 - 30 which is 150.
___________
3x = 150
__ ___ divide 3 on both sides, solve for 150 ÷ 3 which is 50.
3 3
x = 50, final answer
hope this helps! :)
Please help meeeeeee!!!!! ill give BRAINLIEST
Answer:
Step-by-step explanation:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. y=6 is a straight line perpendicular to the y-axis at point (0,6) , which means that the range is a set of one value {6} .
The neighbors have $18.57 to spend on strawberry plants. A 6-pack of plants costs $2. How many packs can they buy?
Answer:
9
Step-by-step explanation:
the answer is 9 because 18 $÷2 = 9
Answer:
9 packs
Step-by-step explanation:
18.57/2=9.285
Can't buy 1.285 one so we go back to 9 which is buyable with the money there is.
Help brainy please help help help
Answer:y=-x
Step-by-step explanation:
A can in the shape of a cylinder has a diameter of 6 centimeters and a height of
10 centimeters. Which measurement is closest to the total surface area of the can in
square centimeters?
F 603.19 cm?
G 245.04 cm?
H 376.99 cm?
188.50 cm?
Answer:
I don't know the answer please
find the volume of the cylinder
Answer:
hope help you stay happy and safe
What is the Rotational speed of someone standing in Helsinki, Finland located at 60°11' N and 24°56' E.? (radius of the earth is 3960 miles)
Answer:
515.5 mph
Step-by-step explanation:
I am fairly confident we are taking the same test/quiz thing right now and I figured this one out so here ya go:
60 degrees + 11 sec = 60.183 degrees
3960 * cos(60.183) = 1969 some number in relation to the distance to the poles
2 * pi * 1969 = 12371.8
12371.8 / 24 = 515.5mph
look up "How to Calculate Rotational Speed Around Earths Axis" on YT, video is by " VAM! Physics & Engineering" that is where I found the formula stuffs
shoutout Woodinville
HI PLEASE HELP IM KINDA CONFUSED WITH KINETIC ENERGY AND POTENTIAL ENERGY ANYONE CAN HELP?
Answer:
P
K
P
K
P
K
Step-by-step explanation:
If it's not moving, it's potential energy
If it's moving, it's kinetic energy
PLEASE HELP ME WITH THIS IT IS 12 AM
Write each polynomial in standard form.
Then, give the leading coefficient.
I
7. 12 + 3x2 - X
What is X, the volume, and total surface area?? I hate my math class with a passion so please help me. :(((
Answer:
[tex]x {}^{2} = 4 {}^{2} + 3 { }^{2} \\ x {}^{2} = 16 + 9 \\ x {}^{2} = 25 \\ \sqrt{x {}^{2} } = \sqrt{25} \\ x = 5[/tex]
For rectangle ABCD, find m∠DEC.
1.02 sinusoidal graphs
Answer:
The answer is 20
Step-by-step explanation:
The wave starts at the origin and doesn't complete the cycle until unit 20.
Answer:
[tex]\displaystyle 20[/tex]
Step-by-step explanation:
[tex]\displaystyle \boxed{y = cos\:(\frac{\pi}{10}x - \frac{\pi}{2})} \\ \\ y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{5} \hookrightarrow \frac{\frac{\pi}{2}}{\frac{\pi}{10}} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{20} \hookrightarrow \frac{2}{\frac{\pi}{10}}\pi \\ Amplitude \hookrightarrow 1[/tex]
OR
[tex]\displaystyle \boxed{y = sin\:\frac{\pi}{10}x} \\ \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{20} \hookrightarrow \frac{2}{\frac{\pi}{10}}\pi \\ Amplitude \hookrightarrow 1[/tex]
You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the sine graph, if you plan on writing your equation as a function of cosine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of [tex]\displaystyle y = cos\:\frac{\pi}{10}x,[/tex] in which you need to replase "sine" with "cosine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the sine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the cosine graph [photograph on the right] is shifted [tex]\displaystyle 5\:units[/tex]to the left, which means that in order to match the sine graph [photograph on the left], we need to shift the graph FORWARD [tex]\displaystyle 5\:units,[/tex]which means the C-term will be positive, and by perfourming your calculations, you will arrive at [tex]\displaystyle \boxed{5} = \frac{\frac{\pi}{2}}{\frac{\pi}{10}}.[/tex]So, the cosine graph of the sine graph, accourding to the horisontal shift, is [tex]\displaystyle y = cos\:(\frac{\pi}{10}x - \frac{\pi}{2}).[/tex]Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph WILL hit [tex]\displaystyle [-15, 1],[/tex]from there to [tex]\displaystyle [5, 1],[/tex]they are obviously [tex]\displaystyle 20\:units[/tex]apart, telling you that the period of the graph is [tex]\displaystyle 20.[/tex]Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at [tex]\displaystyle y = 0,[/tex]in which each crest is extended one unit beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.
I am delighted to assist you at any time.
Help bestiess
7x=5x÷67
Answer:
7x=5x/67
Step-by-step explanation:
2. True or false: In an exponential expression, you multiply the base by the exponent.
True
False
Answer:
true
Step-by-step explanation:
if the diameter of the semicircle is 6 in fid the area in terms of pi?
Answer:
i think the is 14.13.
Step-by-step explanation:
I need helppp plzzzzz
Answer:
b^8
Step-by-step explanation:
Answer:
b^8, with m = 8
Step-by-step explanation:
Apply the algebraic rule: (x^a)/(x^b) = x^(a-b)
Note: This rule is true because we can cancel all b factors that occur in both numerator and denominator.
From this rule, we know that (b^10)/(b^2) = b^(10-2)
b^(10-2) can be written b^8