Answer: 46.90mins
Step-by-step explanation:
The given data:
The diameter of the balloon = 55 feet
The rate of increase of the radius of the balloon when inflated = 1.5 feet/min.
Solution:
dr/dt = 1.5 feet per minute = 1.5 ft/min
V = 4/3·π·r³
The maximum volume of the balloon
= 4/3 × 3.14 × 55³
= 696556.67 ft³
When the volume 2/3 the maximum volume
= 2/3 × 696556.67 ft³
= 464371.11 ft³
The radius, r₂ at the point is
= 4/3·π·r₂³
= 464371.11 ft³
r₂³ = 464371.11 ft³ × 3/4
= 348278.33 ft³
348278.333333
r₂ = ∛(348278.33 ft³) ≈ 70.36 ft
The time for the radius to increase to the above length = Length/(Rate of increase of length of the radius)
The time for the radius to increase to the
above length
Time taken for the radius to increase the length.
= is 70.369 ft/(1.5 ft/min)
= 46.90 minutes
46.90mins is the time taken to inflate the balloon.
discriminant of 3x^2-2x=0
Answer:4
Step-by-step explanation:
discriminant = b^2-4ac
a = 3, b = -2, c = 0
(-2)^2-4(3)(0) = 4 - 0 = 4
4 is final answer
can y^4 / x^3 be simplify
Answer:
Nope! Thats as simplified as it gets!
Answer:seems like it cant
Step-by-step explanation:
hi, can someone help me on a p e x? learning
Sure whats the problem?
The value of the expression 5³ is 125.
We have,
The concept used in calculating the value of 5 raised to the power of 3 is exponentiation.
In mathematics, exponentiation is an operation that involves raising a base number to a certain power.
The base number (in this case, 5) is multiplied by itself repeatedly, where the number of times it is multiplied is determined by the exponent (in this case, 3).
When we raise 5 to the power of 3, we can interpret it as multiplying 5 by itself three times:
5³ = 5 x 5 x 5 = 125
So, the concept of exponentiation allows us to quickly calculate the result of multiplying a number by itself multiple times, where the exponent indicates the number of repetitions.
Thus,
The value of the expression 5³ is 125.
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The complete question:
What is the value of 5 raised to the power of 3?
Eukaryotes have a nucleus, and prokaryotes have a nucleoid. (4 points) True False
Answer:
false
Step-by-step explanation:
prokaryotes dont have any nucleous or nuclieiod
Answer:
TRUE
Step-by-step explanation: Prokaryotic cells dont have a nucleus that contains their genetic material as eukaryotic cells do, instead they have a nucleoid region, which is an irregular-shaped region that contains the cell’s DNA.
Help!! Please;-;
Choose the slope and y-intercept that
correspond with the graph.
Answer:
Y-intercept: -1Slope: -1/3Step-by-step explanation:
The y-intercept is the point where the line crosses the y axis (horizontal line in graphs). We can clearly see that the y-intercept is -1, since the line intersects the y axis at y = -1.
Ok, now for the slope, we will use this equation, where m is the slope we wish to find.
m = rise/run where rise is the change in y and run is the change in x.
To determine the rise and run, we need two coordinate pairs.
9, -4 and 0, -1 will do
Note: The coordinate pairs are x, y, but slope is y/x, it is important that we do not become confused.
Now, we will subtract one y from the other and then do the same for the x's. It is important that we use the same order for the x's as we do for the y's, in order for the answer to be valid.
Y -4 - -1 = -3
X 9 - 0 = 9
Slope is -3/9 or -1/3
Hope that this answer has helped you, please mark it brainliest if it did :)15. Examine the figure below.
If C is the midpoint of BD, what is the coordinate of point C if point B is at 0?
Answer:
13
Step-by-step explanation:
Given:
BC = 2x + 7
CD = x + 10
Coordinate of point B = 0
Required:
Coordinate of point C
SOLUTION:
Since C is the midpoint of BD, therefore:
BC = CD
2x + 7 = x + 10 (substitution)
Collect like terms
2x - x = -7 + 10
x = 3
BC = 2x + 7
Plug in the value of x
BC = 2(3) + 7 = 6 + 7
BC = 13
Thus, the coordinate of point C would be a distance of 13 units away from the coordinate of point B.
Since the coordinate of B is 0, 13 units away from 0, would be 13.
Therefore, the coordinate of point C = 13
The coordinate of point C if If C is the midpoint of BD will be (0, 13)
From the given diagram, if C is the midpoint of BD, hence;
BC + CD + BD
Given the following parameters
BC = 2x + 7
CD = x + 10
Since C is the midpoint of BD, hence BC = CD
2x + 7 = x + 10
2x-x = 10 - 7
x = 3
Get the measure of BC:
BC = 2x + 7
BC = 2(3) + 7
BC = 13 = CD
Hence the coordinate of point C will be (0, 13)
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A small town has two local high schools. High School A currently has 850 students and is projected to grow by 35 students each year. High School B currently has 700 students and is projected to grow by 60 students each year. Let AA represent the number of students in High School A in tt years, and let BB represent the number of students in High School B after tt years. Write an equation for each situation, in terms of t,t, and determine after how many years, t,t, the number of students in both high schools would be the same.
An equation for each situation, in terms of t, is y = 850e^35t and
y = 700e^70t
The required equation will be in the form y = Ae^kt
where:
k is the growth constantA represents the number of students in High School A in t years.B represents the number of students in High School B after t years.If High School A currently has 850 students and is projected to grow by 35 students each year, hence;
A = 850k = 35 (growth factor)Substituting into the formula, we will have:
y = 850e^35t
If High School B currently has 700 students and is projected to grow by 60 students each year, hence;
A = 700k = 60 (growth factor)Substituting into the formula, we will have:
y = 700e^70t
An equation for each situation, in terms of t, is y = 850e^35t and
y = 700e^70t
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Factorise completely 28x2y2-21x2y3
Answer: 7x4y5
Step-by-step explanation:
28x 2y 2 -21x 2y 3
add like terms
28x and -21x
2y and 2y
2 and 3
Can someone explain how to solve this?
Answer:
here you go. hope this helps!
A $270 suit is marked down by 10%. Find the sale price.
Find h, k and a, then write an equation for the following transformed function.
Answer:
On the graph h, k, and a are not labeled so do not find a way to find them
Step-by-step explanation:
give me brainliest
georgia made 48 cupcakes for her sister's birthday party. 1/4 of them are chocolate 1/6 of them are strawberry 5/12 of them are vanilla. how many cupcakes are lemon
Answer:
8
Step-by-step explanation:
I changed all of the denominators to 12. Added it all up and got 10. Multiplied it by 4 and got 40. There is 8 remaining, I hope this helps.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPP.
Square KLMN with vertices K(0,2), L(1,8), M(7,7), and N(6, 1): 270 counterclockwise about the orgin
Note: Consider we need to find the vertices of the image.
Given:
Square KLMN with vertices K(0,2), L(1,8), M(7,7), and N(6, 1).
It rotates 270 counterclockwise about the origin.
To find:
The vertices of the image after rotation.
Solution:
If a figure rotates 270 counterclockwise about the origin, then the rule of rotation is defined as
[tex](x,y)\to (y,-x)[/tex]
Using this rule, we get
[tex]K(0,2)\to K'(2,0)[/tex]
[tex]L(1,8)\to L'(8,-1)[/tex]
[tex]M(7,7)\to M'(7,-7)[/tex]
[tex]N(6,1)\to N'(1,-6)[/tex]
Therefore, the vertices of the image are K'(2,0), L'(8,-1), M'(7,-7) and N'(1,-6).
If PQ + RS = PS and RS = XY, then PQ + XY = PS.
a. Symmetric Property
b.Segment Addition Postulate
c.Substitution Property
d. Transitive Property
Answer:
B. Substitution Property
Step-by-step explanation:
Transitive property would be TX=GH and GH=PS then TX+PS
The substitution property of equality is one of many equality properties used to simplify expressions and solve equations.
If PQ + RS = PS and RS = XY, then PQ + XY = PS is an expression using substitution property.
What is substitution property?The substitution property states that 'If a variable x is equal to another variable y, then x can be substituted in place of y in any expression and y can be substituted in place of x in any expression.
We have,
If PQ + RS = PS and RS = XY, then PQ + XY = PS.
We are substituting RS with XY on PQ + RS = PS.
We get,
PQ + XY = PS
This expression has been solved using the substitution property.
Thus, If PQ + RS = PS and RS = XY, then PQ + XY = PS is an expression using substitution property.
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what is the answer
Answer:
-5,5
Step-by-step explanation:
Graph each pair of linear equation in one coordinate plane.
Graph po pls
The pair of linear equations graphed using a graphing software. The graphs are attached below :
Graph 1 :
x = 2x + 2 - - - - (1)
2y = 4x + 4 ;
Divide both sides by 2
y = 2x + 2 - - - - - (2)
Hence, the graph would be follow the same trends as the functions are the same.
Graph 2 :
y = x - 5 - - - - - - (1)
y = - x + 3 - - - - - (2)
The pair of lines intersect each other as seen on the graph.
Graph 3 :
y = 2x - 3 - - - - (1)
y = 2x + 4 - - - - (2)
Both Lines are parallel to one another.
The attached graphs are in the attachment below.
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The senior classes at High School A and High School B planned separate trips to the local amusement park. The senior class at High School A rented and filled 13 vans and 5 buses with 370 students. High School B rented and filled 12 vans and 10 buses with 600 students. Every van had the same number of students in it as did the buses. Find the number of students in each van and in each bus.
please show you work
Answer:
10 students/van
48 students/bus
Step-by-step explanation:
(a) 13v+5b = 370
(b) 12v+10b = 600
(a) - (b)
v -5b = -230
v = 5b-230
12(5b-230) + 10b = 600
60b+10b -2760=600
70b=3360
7b=336
b=48
v = 5(48) - 230 = 10
v = 10
Let's check
12(10) +10(48) = 600
Question 5 (1 point)
At the corner produce market, apples cost $2 each and
oranges cost $1 each.
Find the cost of:
a. 6 apples and 3 oranges:$
apples &
oranges
b. 4 apples and 4 oranges:$
apples &
oranges
c. 5 apples and 4 oranges:
apples &
oranges
d. 8 apples and 2 oranges:$ apples &
oranges
Blank 1:
Blank 2
Blank 3:
Blank 4:
Blank 5
Blank 6:
Blank 7
Blank 8:
Answer/Step-by-step explanation:
Unit cost of apple = $2 let each
Unit cost of orange = $1 per each
a. Cost of 6 apples = 6 × $2 = $12
Cost of 3 oranges = 3 × $1 = $3
b. Cost of 4 apples = 4 × $2 = $8
Cost of 4 oranges = 4 × $1 = $4
c. Cost of 5 apples = 5 × $2 = $10
Cost of 4 oranges = 4 × $1 = $4
d. Cost of 8 apples = 8 × $2 = $16
Cost of 2 oranges = 2 × $1 = $2
HELP ME PLZZ I NEED HELP WITH THIS!!
Answer:D
Step-by-step explanation:
what's the y intercept of y=3x+2
Answer:
2
Step-by-step explanation:
insert 0 for x
Y=-5/8x+3/2 in standard form
Answer:
y=0.625
Step-by-step explanation:
Answer:
Sorry about the way it is, I don't know how to fix it But I hope you can try and understand it.
Step-by-step explanation:
y
=
3
8
x
−
3
4
in standard form is
3
x
−
8
y
=
6
.
Explanation:
Standard form for a linear equation is
A
x
+
B
y
=
C
.
y
=
3
8
x
−
3
4
Simplify
3
8
x
to
3
x
8
.
Subtract
3
x
8
from both sides of the equation.
−
3
x
8
+
y
=
−
3
4
Multiply both sides by
−
1
.
−
3
x
8
(
−
1
)
+
y
(
−
1
)
=
−
3
4
(
−
1
)
=
3
x
8
−
y
=
3
4
Multiply both sides by
8
.
(
3
x
)
⋅
8
8
−
y
(
8
)
=
(
3
)
⋅
8
4
=
(
3
x
)
⋅
8
1
8
1
−
y
(
8
)
=
(
3
)
⋅
8
2
4
1
=
3
x
−
8
y
=
6
Find the value of x given m (I need a lot of help)
Answer:
x=7
Step-by-step explanation:
m angle SAR = m angle SQR (angles lying in the same segment of a circle are always equal)
that's why
7x+7=9x-7
9x-7x= 7+7
2x= 14
x=7
Answer:
x=7
Step-by-step explanation:
Given that measure of angle SAR= measure of angle SQR
7x+7=9x-7
-2x=-14
x=7
CHECK:
7(7)+7=56
9(7)-7=56
Samuel graphed the equation y = 2x + 2, and Monika graphed the equationy = -2x + 2. How do their two graphs compare?
A. As you trace their graphs from left to right, Samuel's graph rises and Monika's graph
falls.
B. As you trace their graphs from left to right, Samuel's graph falls and Monika's graph
rises.
C. Samuel's graph is a parabola that opens up, and Monika's graph is a parabola that
opens down.
D. Samuel's graph is a parabola that opens to the right, and Monika's graph is a
parabola that opens to the left.
Answer:
A
Step-by-step explanation:
Because if you look up y=2x+2 that graph rises and if you look up y=-2x+2 it decreases
Which trigonometric identity is the reciprocal of the cos identity?
A. cosec
B. sec
C. sin
D. cot
Step-by-step explanation:
The secant is the reciprocal of the cosine. It is the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle.
Can somebody plz answer these questions if u done it before thx!
WILL MARK BRAINLIEST WHOEVER ANSWERSS
Answer:
Step-by-step explanation:
23.) 0.29
24.) 0.32
25.) 0.04
26.) 0.73
27.) 0.65
28.) 0.88
(Excuse me, but what grade are you in?)
Answer:
23. 0.29 Dollars
24. 0.32 Dollars
25. 0.04 Dollars
26. 0.73 Dollars
27. 0.65 Dollars
28. 0.88 Dollars
Step-by-step explanation:
Fundamental Method ==>
[tex]1 \times \frac{percentge}{100} [/tex]
By Z.Khan
An angle measures 12° less than three times it’s supplement. Find the measure of the angle
Answer:
132 degrees.
Step-by-step explanation:
Let the supplement be x and the angle be y.
x + y = 180 degrees.
y = (3x - 12) degrees.
x + 3x - 12 = 180
4x = 192
x = 48 degrees
y = 132 degrees
Hope this helped!
Select the section(s) of the graph where the function is decreasing.
1. blue line
2. red line
3. curved blue line
4. green line
can be more than one
The graph where the function is decreasing is represented by, the blue line, red line and the green line.
What is decreasing function?"If the value of the function f(x) is decreasing on increasing the value of x, then the function is called as decreasing function."
For given situation,
we have been given a piecewise function and its graph.
From the graph of a function,
we can observe that the function f(x) is decreasing for x < -3 , -3 ≤ x ≤ 0, and x > 0
This is represented by, the blue line, red line and the green line
Therefore, the correct options are 1, 2, 4.
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Write the slope-intercept form of the equation of the line through the point (1,-3) with a slope of 2.
Answer:
The answer is
[tex] \huge y = 2x - 5[/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y + 3 = 2(x - 1) \\ y + 3 = 2x - 2 \\ y = 2x - 2 - 3[/tex]
We have the final answer as
[tex]y = 2x - 5[/tex]
Hope this helps you
10 points
slope of (-2,-4) and (6,7)
(explain)
Answer:
11/-8
Step-by-step explanation:
-2-6=-8
-4-7=11
then flip
Find all real square roots of 121
If there is more then one answer Separate then with commas if there are none, click on “None”
Answer:
11,-11
Step-by-step explanation:
This is correct.
hope this helps ;D
Answer:
All real square roots of 121 is +11 and -11.
When you square root something, you take the positive and negative of the number, so the square root of 121 would be 11 and -11.
When you do 11 times 11, you get 121 and when you do -11 times -11, you get 121 as well, this is why we do the negative as well.
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