Answer:
A. 28.27 ft^2
Step-by-step explanation:
You're looking for the area of the circle.
Area of circle = [tex]\pi r^{2}[/tex]
[tex]\pi (3)^{2}[/tex]
= 28.27 ft^2
$6.62 for 2 pounds of tomato’s
Answer:
$3.31 for each
Step-by-step explanation:
$6.62 divided by 2 = $3.31
Answer:
$6.62 divided by 2= $3.31
Step-by-step explanation:
What your going to do is divide 6 by 2 = 3
Next divided 62 by 2 = 32
Easy =)
Have a great day/night
A number, n, is multiplied by −0. 7. The product is -1/2. What is the value of n?
Step-by-step explanation:
-0.7n = -1/2
-0.7n = -0.5
n = 0.5/0.7
n = 0.715
help me I need to make sure I got the correct answer.
Answer:
I dont know pls ask you parents...
Step-by-step explanation:
I dont know
Latoya drove 585 miles in 9 hours. At the same rate, how many miles would she drive in 13 hours?
Answer:
845 miles
Step-by-step explanation:
Hope this helps!
please help me with this
Thanks~
Answer:
(-6,8)
Step-by-step explanation:
How to solve (3x)^0 for applying the exponent rule for zero exponents
Determine the amplitude or period as requested.
Period of y = negative one-third sine 2 x
a.
Negative one-third
b.
StartFraction pi Over 3 EndFraction
c.
One-third
d.
Pi
The time period of the given function will be π.
What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have the following expression -
y = (-1/3)sin(2x)
We have -
y = (-1/3)sin(2x)
We can write -
ωx = 2x
Now -
ω = 2π/T
(2π/T)x = 2x
2π/T = 2
T = 2π/2
T = π
Therefore, the time period of the given function will be π.
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can someone explain this to me and what the question means and is asking?
In other words, it shows when the ball hits the ground.
PLS HELPPP I HAVE NO IDEA WHAT THIS IS HELPPPPP
9(3+x)=4(3+x)
Answer with steps
Answer:
x = 2.5
Step-by-step explanation:
Expand the brackets[tex]27+9x=12+3x[/tex]Subtract 3x from both sides[tex]27+6x=12[/tex]Subtract 27 from both sides[tex]6x=-15[/tex]Divide both sides by 6[tex]x=2.5[/tex]Answer:
x = -3
Step-by-step explanation:
9(3+x) = 4(3+x)
9(3+x) - 4(3+x) = 0
(9-4)(3+x) = 0
5(3+x) = 0
15+5x = 0
-15 = 5x
x = -3
line A is perpendicular to line B. if the slope of line A is -5/3, what is the slope of line B?
Answer: 3/5
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals of each other.
Harry takes medicine every day. If the dosage is 0.2 of a gram per day, what is the total amount of medicine he consumes in a week?
Answer:
1.4 grams of medison for thr whole week combinded
Answer:
1.4 g
Step-by-step explanation:
0.2 gram per day x 7 days = 1.4 g total consumed in a week
What is b if a=2x and c= 8x on a right triangle
B is 5.625
A=2x
C=8x
5.625x2(x)*8(x)=90
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What is 3^2, 5^3, and 9^2? I need some test help.
Answer:
3^2=9 5^3=125 9^2=81
Step-by-step explanation:
exponent is just multiplying the base by itself however we many times the exponent's (the small number on the top right of the base) value is
base-->5^3<--exponent
3^2=3×3=9
5^3=5×5×5=125
9^2=9×9=81
example
6^4=6×6×6×6=1296
Pls Pls help!! It's due soon!!
Answer:
-2,4
Step-by-step explanation:
to do a reflection across the y axis, apply -x,y to your coordinates
Fill in the missing numbers
Answer:
(x - 4)
Step-by-step explanation:
x² - x - 12
to factor consider the factors of the constant term (- 12) which sum to give the coefficient of the x- term (- 1)
the factors are + 3 and - 4 , since
3 × - 4 = - 12 and + 3 - 4 = - 1 , then
x² - x - 12 = (x + 3)(x - 4) ← in factored form
0.21 Divided by 7 I would like to know how to solve the equation
Answer:
0.03
Step-by-step explanation:
[tex] \frac{0.21}{7} [/tex]
==>
[tex] \frac{0.21 \times 100}{7 \times 100} [/tex]
===>
[tex] \frac{21}{7} \times \frac{1}{100} [/tex]
==>
[tex]3 \times \frac{1}{100} [/tex]
==>
[tex] \frac{3}{100} [/tex]
==>
[tex]0.03[/tex]
Madden needs to choose an object for his math project that shows volume. He has a choice between a container for catching bugs and a poster from his favorite movie. Which item should Madden choose and why?
Answer:
container for catching bugs because posters have nothing to do with volume
Answer:
I think Madden should go for the poster because poster have more angles as well as width length and height.
Step-by-step explanation:
Brainliest??????
Find an equation for the line that passes through the points (6, -1) and (-6, 2).
Answer:
[tex]D : y = \frac{-1}{4}x + \frac{1}{2}[/tex]
Step-by-step explanation:
let D be the line that passes through the points (6, -1) and (-6, 2)
Then D has an equation of the form D: y = ax + b
Now we need to find a and b in order to be able to write the equation of the line D:
[tex]a = \frac{-1-2}{6-(-6)}= \frac{-3}{12}= \frac{-1}{4}[/tex]
Since the point (6 , -1) lies on the line D then :
-1 = (-1/4) × (6) + b
then
-1 = (-6/4) + b
then
b = -1 - (-6/4) = -1 + 6/4 = -4/6 + 6/4 = (-4+6)/4 = 2/4 = 1/2
then
b = 1/2
Conclusion:
Since a = -1/4 and b = 1/2 then
[tex]D : y = \frac{-1}{4}x + \frac{1}{2}[/tex]
pls help this is due in a bit
Answer:
multiply base area by 2 , and add the base perimiter and height
Step-by-step explanation:
hope this helped
Can someone help me solve this problem? 100-[5×(3+4)]
Answer:
65
Step-by-step explanation:
Use PEDMAS
P - Parenthesis ; E - exponents ; D -division ; M - mulitplication ;
A - Addition ; S- subtraction.
First do the operation in the inner most parenthesis.
100 - [ 5 *(3 + 4)] = 100 - [ 5* 7 ] {Now the outer parenthesis}
= 100 - 35
= 65
Please I Need Help 20pts
To rent a certain meeting room, a college charges a reservation fee of $39 and an additional fee of $9.80 per hour. The math club wants to spend at most $117.40 on renting the meeting room. What are the possible amounts of time for which they could rent the meeting room? Use t for the number of hours the meeting room is rented, and solve your inequality for t.
Answer:
0 < t ≤ 8 (in hours)
Up to (and including) 8 hours
Step-by-step explanation:
Let t = number of hours the room is rented
Given:
Reservation fee = $39Fee per hour = $9.80Maximum total cost = $117.40Create an equation using the given information and solve for t:
⇒ 39 + 9.8t ≤ 117.4
Subtract 39 from both sides:
⇒ 9.8t ≤ 78.4
Divide both sides by 9.8
⇒ t ≤ 8
Therefore, the possible amounts of time for which they could rent the meeting room is 0 < t ≤ 8 (in hours)
Answer:
8 is the very maximum number of hours the room can be rented. As long as 8 is not exceeded, the room is rentable for what money the math club has.
Step-by-step explanation:
Givens
Maximum payment = 117.40Cost per hour = 9.80Fixed charge = 39 dollarsFormula
payment ≥ 39 + 9.80*t where t is in hours.
Solution
117.40 ≥ 39 + 9.80*t Subtract 39 from both sides.
117.40 - 39 ≥9.80*t
78.40 ≥ 9.80*t Divide by 9.8
78.40/9.80 ≥ 9.80*t/9.80
8 ≥ t
Answer t≥ 8
Umberto bought a car for 28,000 the car is depreciating ata rate of 9% per year what wil be the approximent value of the car after 5 years
[tex]\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &28000\\ r=rate\to 9\%\to \frac{9}{100}\dotfill &0.09\\ t=years\dotfill &5\\ \end{cases} \\\\\\ A=28000(1 - 0.09)^{5}\implies A=28000(0.91)^5\implies A\approx 17472.90[/tex]
A car can travel 294 kilometers on 21 liters of gasoline. How much gasoline will it need to go 42 kilometers?
Answer:
7
Step-by-step explanation:
I’m not quite sure what the answers are, I have tired this problem a variety of times and still get it wrong.
Check the picture below, keeping in mind that opposides sides and interior angles in a parallelogram are congruent.
a student claims y=1 is not a linear equation because it does have the form y=mx+b. Do you agree or disagree explain why
The student is wrong because y = 1 represent lienar equation of a horizontal line. Disagree.
What is Linear Equation in Slope-intercept Form?Equation of a line in slope-intercept form, is y = mx + b, where m is the slope and b is the y-intercept of the linear graph.
Where m (slope) = 0, the linear equation would be, y = b, which suggest that the line is horizontal, and intersects the y-axis at point b.
Therefore, the student is wrong because y = 1 represent lienar equation of a horizontal line. Disagree.
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For the inverse variation equation xy = k, what is the constant of variation, k, when x = 7 and y = 3? three-sevenths seven-thirds 10 21
The value of the constant k when the value of x and y is 7 and 3 respectively in the equation xy=k is 21.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The value of the constant k when the value of x and y is 7 and 3 respectively in the equation xy=k can be written as,
[tex]xy=k\\\\(7) \times (3 ) =k\\\\k= 21[/tex]
Hence, the value of the constant k when the value of x and y is 7 and 3 respectively in the equation xy=k is 21.
Learn more about Equation:
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Answer:
D
Step-by-step explanation:
K=21
I need to put this equation into standard form help please!
-4.9t²+7.5t+1.8=21
20.5 yeah :)
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A garden measuring 8 feet by 12 feet will have a walkway around it. The walkway
has a uniform width, and the area covered by the garden and the walkway is
192 square feet. What is the width of the walkway?
A. 2 feet
B. 3. 5 feet
C. 4 feet
D. 6 feet
By solving a quadratic equation, we will see that the width of the walkway is 3ft.
How to get the width of the walkway?Remember that for a rectangle of length L and width W, the area is:
A = W*L
Now, we know that for our garden we have:
W = 8ft
L = 12ft
If we add a walkway of width x around the garden, then the new measures are:
W' = 8ft + 2x
L' = 12ft + 2x
So the area is:
A' = ( 8ft + 2x)*( 12ft + 2x)
And we know that it is equal to 192 ft^2, then:
192 ft^2 = ( 8ft + 2x)*( 12ft + 2x)
Now we can solve this for x.
192ft^2 = 96ft^2 + 4x^2 + 20ft*x
0 = 96ft^2 - 192ft^2 + 20ft*x + 4x^2
0 = -96ft^2 + 20ft*x + 4x^2
This is a quadratic equation, and the solutions are given by the Bhaskara's formula:
[tex]x = \frac{-20ft \pm \sqrt{(20ft)^2 - 4*4*(-96ft^2)} }{2*4} \\\\x = \frac{-20ft \pm 44ft}{8}[/tex]
We only take the positive solution, so we get:
x = (-20ft + 44ft)/8 = 3ft
So the width of the walkway is 3ft.
If you want to learn more about quadratic equations, you can read:
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Need help
read the question first
Answer:
A. horizontal velocity is constant at 25 m/s in every interval
B. downward velocity increases by 9.8 m/s each second, to 19.6 m/s, 29.4 m/s, 39.2 m/s, 49.0 m/s
Step-by-step explanation:
A.Since the ball is not rocket-powered, it has no acceleration in the horizontal direction. (We ignore slowing due to air friction.) The horizontal velocity remains constant at 25 m/s.
__
B.The vertical acceleration is given as 9.8 m/s² in the downward direction. That is, each second the ball is in motion, its velocity downward increases by 9.8 m/s. The table can be filled with ...
t = 2 s, v = -19.6 m/s
t = 3 s, v = -29.4 m/s
t = 4 s, v = -39.2 m/s
t = 5 s, v = -49.0 m/s
__
The sign is negative because the direction is downward. Positive is up.