Answer: after 3 seconds
when the ball hit the ground => - 5t² + 14t + 3 = 0
⇔ (5t + 1)(t - 3) = 0
⇔ t = 3 or t = -1/5
but t is a positive integer => t = 3
so the ball will hit the ground after 3 seconds
Step-by-step explanation:
Question 4 asap thanks
Answer:
20x+45x+50 = 180
65x= 130
x = 2
so,
A = 20x = 20×2 = 40
hope u got it.
need help with this algebra problem ALG 2A
Answer:
If you are trying to simplify the expression, the answer is -14x^2+8x-37
Step-by-step explanation:
First, keep removing the parentheses.
(x-1)(2-x)+(x^2+5)(x-7) -x^2(x+6)
Next, try expanding the expression.
3x - x^2 - 2+ (x^2+5)(x-7)-x^2(x+6
3x-x^2-2+x^3-7x^2+5x-35-x^2(x+6
3x-x^2-2x^3-7x^2+5x-35-x^3-6x^2
Finally, simplify the expression.
-14x^2 8x-37
I hope this helped to answer your question.
plz, answer the question in the photo.
I'm pretty sure that the answer is a
Answer:
I believe it is D
Step-by-step explanation:
Hi if anyone gets this pls help i understand but i wanna be sure
Answer:
A. [tex]8x^{6}[/tex]
Step-by-step explanation:
Answer:
8x6
Step-by-step explanation:
need answers asap rnn
Answer: of each shape? 3 & 4?
Step-by-step explanation:
HELP PLZ THIS I NEED TO KNOW THIS
If something was sold for $270 after it was reduced by 1/3 of the original price, what was the original price
Answer:
$810
Step-by-step explanation:
you can multiply 210 by 3
Find the solution of the system of equations shown on the graph.
Answer:
(7,-6)
Step-by-step explanation:
The solution of the systems of equations is the point where the lines intersect. So just looking at the graph, you can see that the point (7,-6) is where the two lines intersect.
Hope this helps! :)
Find the length of Ac. Round your answer to the nearest tenth
Answer:
x ≈ 4.3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tan∅ = opposite over adjacentStep-by-step explanation:
Step 1: Identify Variables
Angle = 35°
Opposite Leg = 3
Adjacent Leg = x
Step 2: Solve for x
Substitute [tangent]: tan35° = 3/xMultiply x: xtan35° = 3Isolate x: x = 3/tan35°Evaluate: x = 4.28444Round: x ≈ 4.3BOTH PLEASE 20 POINTS,TYSM
Answer:
5.) 13,841,287,201 x 2,401. 6.) 64⁴.
Step-by-step explanation:
PEMDAS requires parenthesis first, then exponents, then multiplication/division, and then addition/subtraction. For 5, lets find 7¹². According to my calculations, that is 13,841,287,201. Now for 7⁴. According to my calculations, that is 2,401. Now, we have 13,841,287,201 x 2,401. In math, an expression is a problem. If I solve it, it wouldn't be an expression, so I'll just leave it at that. For 6, we do the parenthesis first. 8² is 64. 64 to the fourth power is 16,777,216. If I solved it, it wouldn't be an expression, so we have to leave it at 64⁴. If you are wondering, 64⁴ is equal to 16,777,216. I hope this helps!
Mr. Charles bought dinner for his family.
The dinner cost $46.95.
He left a 15% tip.
About how much tip did Mr. Charles leave?
A.
$4.00
B.
$1.50
C.
$5.00
D.
$7.00
Answer:
I believe the answer is D
Step-by-step explanation:
Ok so I’m getting braces in a week and I’m pretty scared about it. But however, does it hurt when they put them in?
Answer:
Ok so I've had braces and it doesn't really hurt getting put in but it does hurt when they tighten them but you have nothing to worry about :)
Step-by-step explanation:
Answer:
They don't hurt when they put them in however you will feel mild soreness and discomfort as your mouth adjusts to them as with anything, for example, fillings, they feel gritty and uncomfortable at first but your mouth adjusts to it.
" There will be mild soreness or discomfort after the orthodontic wire is engaged into the newly placed brackets, which may last for a few days to a week."
I know its can be scary at first but its for the health of your teeth and not everyone gets that privilege, just make sure to take care of them properly.
Step-by-step explanation:
Helppp I’ll mark you as brainlister you
Answer:
[tex]\triangle KLM \sim \triangle GFH[/tex]
Step-by-step explanation:
In similar triangles, the corresponding angles must be congruent. We see from the diagram that [tex]\angle K \cong \angle G[/tex], [tex]\angle L \cong \angle F[/tex], and [tex]\angle M \cong \angle H[/tex]. Therefore, [tex]\triangle KLM \sim \triangle GFH[/tex].
Solve
110.10+4x=150.104
Answer:
x=10.001
Step-by-step explanation:
Which number is less than 5.17 and greater than 5.04.
there can be infinitely many solutions
For example: 5.16 and 5.06
Combine the like terms to create an equivalent expression 11m + 1 + 3m +4
Im in need of help so please help[ :)))
Pentagon MVEDR is shown on the coordinate grid. Pentagon MVEDR is dilated with the origin as the center of dilation using the rule (x,y)→(23x, 23y) to create pentagon M'V'E'D'R'.
Which statement is true?
Pentagon M'V'E'D'R' is larger than pentagon MVEDR because the scale factor is greater than 1.
Pentagon M'V'E'D'R' is smaller than pentagon MVEDR because the scale factor is less than 1.
Pentagon M'V'E'D'R' is larger than pentagon MVEDR because the scale factor is less than 1.
Pentagon M'V'E'D'R' is smaller than pentagon MVEDR because the scale factor is greater than 1.
Coordinate plane with 4 quadrants. x-axis runs from negative 6 to 4 and y-axis runs from negative 5 to 5 and arrows on both ends. Pentagon with vertices at M at negative 5 comma 2, v at negative 2 comma 3, e at 3 comma 3, d at 3 comma negative 3, r at negative 2 comma negative 3 Vertices labeled with letters.
Given:
Consider the pentagon MVEDR is dilated with the origin as the center of dilation using the rule [tex](x,y)\to(\dfrac{2}{3}x,\dfrac{2}{3}y)[/tex] to create pentagon M'V'E'D'R'.
To find:
The correct statement.
Solution:
If a figure dilated by factor k, then the rule of dilation is
[tex](x,y)\to (kx,ky)[/tex]
Here,
If k>1, then the image is larger than the original figure.
If k<1, then the image is smaller than the original figure.
We have,
[tex](x,y)\to(\dfrac{2}{3}x,\dfrac{2}{3}y)[/tex]
Here, M'V'E'D'R' is image and MVEDR is original figure. The scale factor is
[tex]k=\dfrac{2}{3}<1[/tex]
Pentagon M'V'E'D'R' is smaller than pentagon MVEDR because the scale factor is less than 1.
Therefore, the correct option is B.
Option (B). Pentagon M'V'E'D'R' is smaller than pentagon MVDER because the scale factor is less than 1.
Transformation of a point by dilation: If a point (x, y) is dilated by a scale factor 'k' about the origin,
image point formed will follow the rule,
(x, y) → (kx, ky)
If k > 1, image will be lager than the preimage.If k < 1, image will be smaller than the preimage.
Given in the question,
Rule for the transformation → [tex](x,y)\rightarrow (\frac{2}{3}x,\frac{2}{3}y)[/tex]
Here, [tex]k=\frac{2}{3}[/tex] which is less than 1.
Therefore, image pentagon M'V'E'D'R' will be smaller than the original pentagon MVDER.
Option (B) will be the correct option.
Learn more about the transformation of a figure here,
https://brainly.com/question/2298651?referrer=searchResults
Find 12.43 more than 4.065.
Answer:
16.495
Step-by-step explanation:
plz mark B R A I N L I E S T
Answer:
16.405
Step-by-step explanation:
since you need to find more add 12.34 + 4.065= 16.405
1/2
Store A sells 3 t-shirts for $25. Store B sells the same t-shirts: 5 for $40. Which store has the better deal?
Show your work supporting your answer.
Answer:
Store B
Step-by-step explanation:
To figure out which store has the better deal, we need to figure out the price per unit. We can do this by dividing the price by the number of the shirts. Store A sells their t-shirts for 8.33 or 8 1/3 dollars per shirt, while Store B sells their shirts for 8 dollars a shirt. 8 < 8 1/3, therefore Store B has the better deal.
Answer:
B.
Step-by-step explanation:
If you do 3/25=5/x. You would get $41.6. Another way to show it is to divide 25/3 and 40/5, which would give us $8.3 and $8.
What is the remainder when
f(x) = 2x4 + x2 – 8x – 1 is divided
by x - 6?
Answer:
Step-by-step explanation:
x - 6 = 0
x = 6
f(x) = 2x⁴ + x² - 8x - 1
=2(6)⁴+ 6² - 8*6 - 1
= 2*1296 + 36 - 48 - 1
= 2592 + 36 - 48 - 1
= 2628 - 49
= 2579
Write and solve a proportion to answer the question.
34 is 60% of what number?
Answer: 20 2/5
Step-by-step explanation: 60/100=x/34
100x/100=2040/100
x=102/5=20 2/5
Keith made $65 for 5 hours of work. At the rate, how much would he make for 18 hours of work?
Answer:
234
Step-by-step explanation:
65 x
--- = ---
5 18
I NEED SOME HELP!!!
Ellena knows that 1/5 written as a decimal is 0.2. How can Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5?
Answer:
Adding up 0.2 till it reaches 9 times
Step-by-step explanation:
Brainlliest pls
Bus 26 takes 2 3/4 hours to complete its bus route. How many times can Bus 26 complete its route in 16 hours?
Answer:
i dont understand the question
Step-by-step explanation:
Plz help ASAP!!!!!!!!
Answer:
4 [tex]\sqrt5[/tex]
Step-by-step explanation:
Use Pythagorean theorem to get c^2 for the hypotenuse, which is equal to [tex]\sqrt80[/tex]. You then simplify to get the simplest radical form by [tex]\sqrt80[/tex] = [tex]\sqrt{8*10} = \sqrt{4*2*5*2} = \sqrt{16*5} = 4\sqrt{5}[/tex]
A file that is 261 megabytes is being downloaded. If the download is 18.7% complete, how many megabytes have been downloaded? Round your answer to the nearest tenth
Answer:
48.8
Step-by-step explanation:
if x -1/7,evaluate x²+1/x²
Answer:
[tex]given \: x = - \frac{1}{7} [/tex]
[tex]x {}^{2} + \frac{1}{x {}^{2} } [/tex]
[tex]( - \frac{1}{7} ) {}^{2} + \frac{1}{ ( - \frac{1}{7} ) {}^{2} } [/tex]
[tex] \frac{1}{49} + \frac{1}{ \frac{1}{49} } [/tex]
[tex] \frac{1}{49} + \frac{1 \times 49}{1} [/tex]
[tex] \frac{1}{49} + 49[/tex]
[tex] \frac{2402}{49} \: or \: 49.02[/tex]
Will give brinley crown thing! :)
Is x = 4 the correct solution to the equation 2x - 8 = 12 - 4x ? Explain your reasoning using a complete
sentence.
Answer:
x = 10/3
Step-by-step explanation:
What is X 15x - 7 + 8 - 6x
what is the sum of three consecutive even numbers is 30?
Answer:
here:
you can make an equation
x + ( x + 2) + (x + 4) = 30
then by combining like items you get
3x + 6 = 30
then solve
3x = 30 - 6 ; then 3x = 24 , and x = 8
so the three numbers are 8 ; 10 and 12.