Answer:
No, the number of sit-ups Anna does, are not proportional to the time she spends doing them.
Step-by-step explanation:
When Anna starts, she does a sit-up every 22 seconds.
•The total surface Areas of a cone of base radius r and perpendicular height h, his given by s=πr ² +πr√(r²+h²). iF r and h are each increasing at the rate of 0.5m/s and 0.2m/s respectively, find the rate at which s is increasing at the instant when r=3m and h =4m
The rate of change of the surface area of the cylinder is approximately to 18.473 square meters per second.
What is the rate of change of the surface area of a cone?
In this question we find a formula for the surface area of a cone, of which we must estimate its rate of change by applying derivative rules and the concept of rate of change. The rate of change is the first derivative of the equation:
ds / dt = 2π · r · (dr / dt) + π · √(r² + h²) · (dr / dt) + π · r · [0.5 / √(r² + h²)] · [2 · r · (dr / dt) + 2 · h · (dh / dt)]
If we know that r = 3 m, h = 4 m, dr / dt = 0.5 m / s and dh / dt = 0.2 m / s, then the rate of change of the surface area of the cone is:
ds / dt = 2π · (3 m) · (0.5 m / s) + π · √[(3 m)² + (4 m)²] · (0.5 m / s) + π · (3 m) · [0.5 / √[(3 m)² + (4 m)²] · [2 · (3 m) · (0.5 m / s) + 2 · (4 m) · (0.2 m / s)]
ds / dt ≈ 18.473 m² /s
The rate of change of the surface area of the cylinder is approximately to 18.473 square meters per second.
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What’s the next number in the pattern, and what is the formula to find the next number in the pattern?
7, 28, 63, 112..
Answer:
7, 28, 63, 112, 175, 252, 343, ...
Step-by-step explanation:
Step-by-step explanation:
7, 28, 63, 112, 175
7*1, 7*4, 7*9, 7*16, 7*25, ...
7*1², 7*2², 7*3^2, 7*4², 7*5²
Hence, 7n², n=1, 2, 3, 4, ...
7*6²=
7*6*6=
252
7*7²=
7*7*7=
343
Thus,
7, 28, 63, 112, 175, 252, 343, ...
14. Salena says 38 ÷ 5 = 7. How do you respond to Salena? Explain
how to use patterns with multiplication and division facts to explain
your thinking.
Answer:
Salena is incorrect. I would advise her to try reversing the question to check her work. Please see below to check it.
Step-by-step explanation:
38 ÷ 5 = 7
Try reversing to check.
7*5=35
38 divided by 5 does not equal to 7.
Hope this helps!
Please mark as brainliest if correct!
HI, I need help!! I'm so lost on how to solve this.
Answer:
3⁹
Step-by-step explanation:
you can use a calculater and it will give 19683 and 3⁹ gives 19683
PLEASE HELP MY DEADLINE IS TMR AND IVE BEEN TRYING TO DO THIS ALL DAY. I’ve tried using my notes it doesn’t make sense please help me answer all of the questions. THANK YOU!
13. 9,000 feet
14. 4,500 feet
15. descended 4,500 feet because 9000-4500=4500
16. base camp is 1,000 feet in elevation
17. during 3-4 pm he was descending the fastest because the slope between those two points is the greatest.
18. No because the graph is not linear.
Which equations show a line that is parallel to the line y = -5/4x + 1?
select all that apply
Choose one value that is in the domain of both y(x) = x² and y² = x and that is greater than
0. Substitute that value into y(x) = x² and y² = x and then simplify. Explain how your answers
help to show that the graph on the left represents a function while the graph on the right
represents a relation. Show your work and use function notation where possible
I
We take the value 2 for which y(2)=4 and [tex]y^{2}[/tex]=2 and see that y(x)=[tex]x^{2}[/tex] is a function and [tex]y^{2}[/tex]=x is a relation.
Domain is the set of values that a variable can take in an algebraic expression.For the equation y(x)=[tex]x^{2}[/tex], x can take any value from negative infinity to positive infinity so we can say that the domain for x is (-∞,∞). For the equation [tex]y^{2}[/tex]=x, x can take any value greater than or equal to zero. Since x=[tex]y^{2}[/tex] we can't take a negative value for x because squared numbers are always positive, so the domain of x will be [0,∞). The common domain for both the equations is [0,∞). Let us choose a value from this common domain,let's say 2. Then for
y(x)=[tex]x^{2}[/tex]⇒y(2)=4 ...(i)
[tex]y^{2} =x[/tex]=2 then y=±[tex]\sqrt{2}[/tex]...(ii)
A function always has an output variable and one or more input variables.For first equation, y is the output variable and x is the input variable. A relation states that two expressions are equal and one is not dependant on another. For equation (i) y is dependant on x but in equation (ii) both the variables are independant.
Thus we can conclude that y(x)=[tex]x^{2}[/tex] is a function and [tex]y^{2}[/tex]=x is a realtion.
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drag each tile to the correct box. not all tiles will be used. one solution each is given for four quadratic equations. assuming that each quadratic equation has two solutions, what is the second solution for each equation? arrowright arrowright arrowright
for the equation is, x = -4 - 5i
The solution will be, x = -4 + 5i
for the equation is, x = 4 + 5i
The solution will be, x = 4 - 5i
for the equation is, x = 5 - 4i
The solution will be, x = 5 - 4i
Quadratic equation defind as:Any equation in algebra that can be written in proper format as where x stands for an unknown, where a, b, and c stand for known numbers, and where a 0
According to the given information:If (a + bi) is a complex number and a quadratic equation has one solution,
The second solution to the equation will be the conjugate of the first.
Consequently, the alternative solution will take the form of (a - bi).
for the equation is, x = -4 - 5i
The solution will be, x = -4 + 5i
for the equation is, x = 4 + 5i
The solution will be, x = 4 - 5i
for the equation is, x = 5 - 4i
The solution will be, x = 5 - 4i
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PLEASE HELP!!!
Solve.
-2x+3y-z=-2
3x + y = 4
-2y+2z=4
Enter your answer, in the form (x, y, z), in the boxes in simplest terms.
Step-by-step explanation:
the second equation gives us right away
y = 4 - 3x
we can use that now in the 3rd equation :
-2(4 - 3x) + 2z = 4
-8 + 6x + 2z = 4
6x + 2z = 12
3x + z = 6
z = 6 - 3x
now we use both in the 1st equation :
-2x + 3(4 - 3x) - (6 - 3x) = -2
-2x + 12 - 9x - 6 + 3x = -2
-8x + 6 = -2
-8x = -8
x = 1
y = 4 - 3x = 4 - 3×1 = 4 - 3 = 1
z = 6 - 3x = 6 - 3×1 = 6 - 3 = 3
so,
(1, 1, 3)
rolling a fair dice, what is the probability that before you getting an odd number, you have got all the even numbers
The probability is [tex]\frac{1}{2}[/tex].
To solve this problem we need to recognize the idea of probability.
To calculate the probability we need to divide the desired final results with the aid of the overall number of consequences.
here, it is asked to locate the chance of having all even numbers earlier than getting an strange variety.
We know that the whole number of results when we roll a dice is 6.
We realize there are three odds and three even in the cube. So, the required
probability of getting even = [tex]\frac{3}{6}[/tex]
= [tex]\frac{1}{2}[/tex]
The required probability is equals to [tex]\frac{1}{2}[/tex].
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Help please. I cant figure this one out.
Answer:
x =52
Step-by-step explanation:
The angles shown are same side interior angles, and when the lines are parallel, same side interior angles add to 180 degrees
< 1 + <2 = 180
x+23 + x+53 = 180
Combine like terms
2x+ 76 = 180
Subtract 76 from each side
2x+76-76 = 180 -76
2x = 104
Divide by 2
2x/2 = 104/2
x =52
Answer:
x = 52
Step-by-step explanation:
Angle 1 and angle 2 are on the same side, and on the inside of the interior. This means that when added together they = 180
We can set up an equation
x+23+x+53 = 180
Simplify: 2x + 76 = 180
Subtract 76 from both sides
2x = 104
Now divide by 2
x = 52
James, fay and sal share 160 apples. james got 1/4 of the apples. fay and sal shared the remainder in the ratio 3:2 respectively. 1) find how many oranges fay received 2) how many oranges did sal receive than james?
Using the ratio given in the question,
Apples received by Fay are 72.Apples received by James are 40.Apples received by Sal are 48.What is Ratio?The relation between the quantities of two or more objects—referred to as a ratio—indicates how much of one object is contained in the other. The ratio formula can be used to represent a ratio as a fraction. The ratio formula is given as, for any two quantities, let's assume a and b.
a:b = a/b
Given that James, Fay and Sal share 160 apples.
Total number of apples = 160
Hence, apples received by James = 1/4(160)
= 40 apples
Remaining apples = 160 - 40 = 120 apples
It is also given that the remainder is shared by Fay and Sal in the ratio 3:2.
Hence, the total share will be 3+2=5
So, we can write that Fay's share will be 3/5 of total apples and Sal's share will be 2/5 of the total apples.
Fay's share = 3/5(120)
=3(24)
=72 apples
Sal's share = 2/5(120)
=2(24)
=48 apples
Therefore, the number of apples with Fay is 72.
The number of apples with Sal is 48.
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Avani is making smoothies. Each smoothie uses cup of yogurt. How many cups of
yogurt does she need to make 17 smoothies? Express your answer in simplest form.
5
16
Answer type: Mixed number
Submit Answer
Avani needs 6 cups of yogurt.
To find the amount of yogurt required for specified number of smoothies, simple multiplication operation needs to be performed.
For 1 smoothie, the required amount of yogurt = 3/8 cups
So, the required amount of yogurt for 17 smoothies = (3/8) × 17
Performing multiplication and division to find the amount of yogurt required
Amount of yogurt required = 51/8 cups
Converting the fraction into fraction into decimal -
Amount of yogurt required = 6.375 cups
Rounding off the number of cups to convert it in simplest form -
Number of cups of yogurt required = 6 cups
Hence, the amount of yogurt for making 17 smoothies is 6 cups.
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The complete question is -
Avani is making smoothies. Each smoothie uses 3/8 cups of yogurt. How many cups of yogurt does she need to make 17 smoothies? Express your answer in simplest form.
1/2x+1/2x= x+1
Solution:
(The answer can be no solution and infinitely many solutions)
Answer:
No solution
Step-by-step explanation:
On the left side we have one half x plus one half x which equals x. On the right side we have x + 1. So the equation becomes x = x + 1. Subtracting x from both sides we get 0 = 1, which is false. Therefore there is no solution to this problem.
Kurt spent $96.39 over 414 months on movie streaming services. if he spent the same amount of money each month, how much money, in dollars, did kurt spend per month on movie streaming services?
Using proportions, it is found that Kurt spent $22.68 a month on movie streaming services.
What is a proportion?A proportion is a fraction of a total amount, and equations can be built to find the desired measures in the problem using a rule of three, or operations such as multiplication and division.
These operations are used from the unit rates, as for example, when we have an amount over a period of time, the amount per unit of time is the total amount divided by the total time.
For this problem, we have that the important parameters are found as follows:
The total amount is of $96.39.The time is a mixed number, 4 and 1/4 months, hence it is of 4.25 months, as 4 + 1/4 = 4 + 0.25 = 4.25.Hence his monthly spending is given by the unit rate as follows:
96.39/4.25 = $22.68 a month.
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Write an equation for a line that passes through the points (1, 2) and (11, 22). The form is your choice
Its too confusing pls help!
hello! please read the instructions in the picture :)))
made just for you <3
Use the point slope form to write the equation of a line that passes through the point (1,-17) with slope 4
The equation of line passing through (1, -17) with slope 4 will be y = 4x - 21 .
What is the slope intercept form of a line ?
The equation of line that can be written as y = mx + c, where m is the slope and c is the line's y-intercept, is known as a slope intercept form.
The equation of a line which is passing through point (1 , -17) with slope m = 4 can be found by using the slope intercept form which is given by :
y = mx + c
Here ; m is the slope and c is the y - intercept of the line.
So ;
The point given is (x , y) = (1, -17) and slope m = 4. Let's use these values to find out the equation of the line. But before that let's find out the value of y-intercept (c).
-17 = (4 × 1) + c
c = - 17 - 4
c = -21
Hence , the equation of line passing through (1, -17) will be :
y = 4 × x + (-21)
or
y = 4x - 21
Therefore , the equation of line passing through (1, -17) with slope 4 will be y = 4x - 21 .
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martin s cat weighs 12.37 pounds. what is this weighs written as a mixed number
Answer:
your mixed fraction would be 12 37/100
Step-by-step explanation:
The number has two parts the whole number part is 12, and the decimal part is .37, 12 would be the whole number part of your mixed fraction and we will convert the .37 to become the fraction part of your mixed fraction.
You have to convert the decimal part into a fraction since there are two decimal places you will have 100 in the denominator .37 becomes 37/100 simplify this fraction if possible.
Find the value of x and y.
Bella has a bag that contains pineapple chews, lemon chews, and watermelon chews. She performs an experiment. Bella randomly removes a chew from the bag, records the result, and returns the chew to the bag. Bella performs the experiment 58 times. The results are shown below:
A pineapple chew was selected 53 times.
A lemon chew was selected 2 times.
A watermelon chew was selected 3 times.
the probability is pinapple 53/58
lemon 2/58
watermelon 3/58
The given values are
A pineapple chew was selected 53 Times
A lemon chew was selected 2 times
A watermelon chew was selected 3 times
The probability that you Bella remove from the bag is pineapple chew.
Probability is which we can't predict actual it is usually about the prediction
As we know
Probability - expected outcome/total outcome
The question Bela perform experiment 58 times then the total outcome will be 58 if you pineapple was selected 53 times the probability of the chew Bella pick of pineapple is 53/58
The probability of Bella pick chew of lemon -2/58
The probability of Bella pick watermelon is - 3/58
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Simplify the fraction 24/56 until it is in simplest form.
explain
Answer: 3/7
Step-by-step explanation:
You would divide this by the number 8.
8*3 = 24
8*7 = 56
Therefore the answer is 3/7
Hey there!
24/56
= 24 ÷ 8 / 56 ÷ 8
= 3/7
Therefore, your answer should be:
3/7
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Area of Circles Area of Circles Area of Circles
The area of the circle with the radius is 192 square feet
How to calculate the area of the circle?The figure represents the given parameter
On the figure, we have the radius (r) to be
r = 8 ft
The area of a circle is calculated as
A = πr^2
Where π is given as
π = 3
So, we have
A = 3 * 8^2
Evaluate the exponent
A = 3 * 64
Evaluate the product
A = 192
Hence, the area of the circle with the radius is 192 square feet
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the area of the circle is 201.06
write the algebric expression two less than four times a number
PLEASE SHOW WORK
The expression two less than four times a number is represented as 4x - 2
Algebraic expressionsAn algebraic expression is an expression which is made up of variables and constants, along with algebraic operations such as the addition, subtraction, division and multiplication.
According to the question, we are to transform two less than four times a number into expression
Let the unknown number be x such that
four times a number = 4x
two less than four times a number = 4x - 2
Hence the expression two less than four times a number is represented as 4x - 2
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choose the equation that represents the line that passes through the point (6, −3) and has a slope of one half. (1 point)
The equation that represents the line that passes through the point (6, −3) and has a slope of one half is 2y - x = 13.
The equation of a line is represented as,
y = mx + c equation1
x and y are the coordinates of the point from where the line is passing and m is the slope of the line.
As per the question the line is passing from the point (6, -3). This means value of x = 6 and that of y = -3. The slope of line is (1/2), means m = (1/2).
The slope of the line through the point (-1,6) can also be written as (y - 6)/(x - (-1)) = (y-6)/(x+1).
i.e., m = (y-6)/(x+1)
On equating both the values of m, we will get
(y-6)/(x+1) = 1/2
On simplifying, we get
2y - 12 = x +1
or 2y - x = 13
The equation that represents the line that passes through the point (6, −3) and has a slope of one half is 2y - x = 13.
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Find the LCM of 34 ( use prime factorisation method
The LCM of 34 using prime factorisation method is 2 and 17
1.
Steve drew line segments ABCD, EFG, BF, and C
as shown in the diagram below. Scalene ABFC i
formed.
Which statement will allow Steve to prove
ABCD||EFG?
1) LCFG = LFCB
2) LABF = LBFC
3) ZEFB=LCFB
4) ZCBF = LGFC
Answer:
Choice 1: ∠CFG = ∠FCB
Step-by-step explanation:
∠CFG and ∠FCB are interior alternate angles and equal only if ABCD||EFG
HELP- pleaseeee I’m beggginnngg
The ending number is related to the starting number by n + 9.
To start with this magic number puzzle, let us take a positive number and a negative number. After that we have to perform some simple mathematical operations,
Taking positive number as 10 and negative number as -8.
Now, performing the mathematical operations as described in the next steps.
First starting with positive number which is 10.
Step-1. Add 10
So, 10+10 = 20
Step-2. Multiply by 2
So, 20×2 = 40
Step-3. Subtract 2,
So, 40 - 2 = 38
Step-4. Divide by 2,
So, 38/2= 19
Number chosen in the starting was 10 and at the end it became 19. The number 9 got added to 10.
Now, performing the steps on our negative number which is -8,
Step-1. Add 10
So, 10-8=2
Step-2. Multiply by 2
So, 2×2 = 4
Step-3. Subtract 2
So, 4-2 = 2
Step-4. Divide by 2
So, 2/2 = 1.
Number chosen in the starting was -8 and after performing the steps it became 1.
Now, for any number 'n',
Step-1. Adding 10
So, n+10
Step-2. Multiply by 2
So, 2(n-10) = 2n+20
Step-3. Subtract 2
So, 2n+20-2 = 2n+18
Step-4. Divide by 2.
So, (2n+18)/2 = n+9
The number taken in the starting was n and now it became n+9.
So the ending number becomes 9 times more in the end then the starting number.
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What are the points of intersection between the graphs of the functions
f(x) = (x+3)(x − 1) and g(x) = (x + 1)(x − 3)
Step-by-step explanation:
THE POINT OF INTERSECTION IS WHERE F(x) = G(x)
[tex](x + 3)(x - 1) = (x + 1)(x - 3) \\ {x}^{2} + 2x - 3 = {x}^{2} - 2x - 3 \\ \\ {x}^{2} - {x}^{2} + 2x + 2x - 3 + 3 = 0 \\ 4x = 0 \\ \frac{4x}{4} = \frac{0}{4} \\ x = 0[/tex]
find the y coordinate by plugging in the value of c in any of the function.You will get thw same value
[tex]g(0) = (0 + 1)(0 - 3) \\ g(0) = 1( - 3) \\ g(0) = y = - 3[/tex]
The point of intersection is (0,-3)
a pedometer treats walking 2,000 steps as walking 1 mile. it assumes that one step is a bit over 18 inches (1 mile
The required code for the pedometer is illustrated below:
steps_per_mile=2000
def steps_to_miles(steps, inches_per_step):
distance = steps * inches_per_step
miles = distance / (steps_per_mile * inches_per_step)
return miles
if __name__ == '__main__':
steps = int(input())
inches_per_step=float(input())
miles_in_pedometer = steps_to_miles(steps,inches_per_step)
print(f"You walked {steps} steps which are about {miles_in_pedometer:.2f} miles.")
what is a pedometer?
which will matter steps and decide the gap traveled, pedometers are made to apprehend vertical hip motionthey're not able to offer data at the multivariate framework of regular workout or the period of time spent carrying out numerous activities of various intensities.The required code for the pedometer is illustrated below:
steps_per_mile=2000
def steps_to_miles(steps, inches_per_step):
distance = steps * inches_per_step
miles = distance / (steps_per_mile * inches_per_step)
return miles
if __name__ == '__main__':
steps = int(input())
inches_per_step=float(input())
miles_in_pedometer = steps_to_miles(steps,inches_per_step)
print(f"You walked {steps} steps which are about {miles_in_pedometer:.2f} miles.")
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What is the measure of XYZ?
V
33
Y
O D. 54°
N
X
75⁰
O A. 33°
OB. 75°
O C. 108°