Answer:
1.008
1.08
1.6
1.6071
Step-by-step explanation:
least to greatist
The diameter of a small pizza is 16 centimeters this is 2 centimeters more than two fiths of the diameter of a large pizza find the diameter of the large pizza
Answer:
35 cm
Step-by-step explanation:
Diameter of small pizza = 16
Let Diameter of large pizza = x
Diameter of small pizza = 2/5(x) + 2
2/5(x) + 2 = 16
(2x / 5) + 2 = 16
2x / 5 = 16 - 2
2x / 5 = 14
multiply both sides by 5
2x = 14 * 5
2x = 70
Divide both sides by 2
x = 70/2
x = 35
Diameter of large pizza = 35 mm
Meredith is playing games at the arcade to earn tickets that she can exchange for a prize. She has 278 tickets from a previous visit, and she earns 5 each game she plays. If Meredith needs 388 tickets to exchange for the prize, how many games does Meredith need to play?
Rewrite the following equation in standard form.
y = 3x + 9
3x-y=-9
Step-by-step explanation:
Answer: 3x - y = - 9
Step-by-step explanation:
Re-write the equation in the following form:
3x + 9 = y
Take the y to LHS:
3x + 9 - y = 0
Now, take the 9 to the RHS:
3x - y = -9. This is your answer.
A circle of radius r has area A and circumferance C aregiven respectively by
A=πr^2, C=2πr
If r varies with time t, for what value of r is the rate ofchange of A with respect to "t" equal to the rate of change of Cwith respect to "t"?
1.r=2π
2. r=π/2
3. r=π
4.r=1
5. r=2
6. r=1/2
r = 1 represents the value of r at which the rate of change of A with respect to t is equal to the rate of change of C with respect to t.
What is a circle?In mathematics, a circle is a basic geometric shape. It is a two-dimensional figure made up of all points in a plane that are equally spaced apart from the center, which is a fixed point.
We must differentiate both A and C with respect to t and set them equal to each other in order to get the value of r at which the rate of change of the area A with respect to t is equal to the rate of change of the circumference C with respect to t.
Given:
A = πr²
C = 2πr
Taking into account t, we can differentiate both equations:
dA/dt = d(πr²)/dt = 2πr(dr/dt)
dC/dt = d(2πr)/dt = 2π(dr/dt)
dA/dt is set to equal dC/dt:
2πr(dr/dt) = 2π(dr/dt)
The common terms (2) on both sides of the equation can now be eliminated:
r(dr/dt) = dr/dt
Now, we have the equation:
r(dr/dt) - (dr/dt) = 0
Factoring out (dr/dt):
(dr/dt)(r - 1) = 0
This equation must be satisfied by (dr/dt) = 0 or (r - 1) = 0.
If (dr/dt) = 0, then there is no change in the rate at which r changes with regard to t.
This suggests that r is not altering in relation to t. Consequently, r can be any value of a constant.
If (r - 1) = 0, it means that r = 1.
Consequently, r = 1 represents the value of r at which the rate of change of A with respect to t is equal to the rate of change of C with respect to t.
Hence the correct option is 4. r = 1.
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if possible help me in this. I need to find the two odd numbers...
Part (a)
Consecutive odd integers are integers that odd and they follow one right after another. If x is odd, then x+2 is the next odd integer
For example, if x = 7, then x+2 = 9 is right after.
Answer: x+2========================================================
Part (b)
The consecutive odd integers we're dealing with are x and x+2.
Their squares are x^2 and (x+2)^2, and these squares add to 394.
Answer: x^2 + (x+2)^2 = 394========================================================
Part (c)
We'll solve the equation we just set up.
x^2 + (x+2)^2 = 394
x^2 + x^2 + 4x + 4 = 394
2x^2+4x+4-394 = 0
2x^2+4x-390 = 0
2(x^2 + 2x - 195) = 0
x^2 + 2x - 195 = 0
You could factor this, but the quadratic formula avoids trial and error.
Use a = 1, b = 2, c = -195 in the quadratic formula.
\(x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(2)\pm\sqrt{(2)^2-4(1)(-195)}}{2(1)}\\\\x = \frac{-2\pm\sqrt{784}}{2}\\\\x = \frac{-2\pm28}{2}\\\\x = \frac{-2+28}{2} \ \text{ or } \ x = \frac{-2-28}{2}\\\\x = \frac{26}{2} \ \text{ or } \ x = \frac{-30}{2}\\\\x = 13 \ \text{ or } \ x = -15\\\\\)
If x = 13, then x+2 = 13+2 = 15
Then note how x^2 + (x+2)^2 = 13^2 + 15^2 = 169 + 225 = 394
Or we could have x = -15 which leads to x+2 = -15+2 = -13
So, x^2 + (x+2)^2 = (-15)^2 + (-13)^2 = 225 + 169 = 394
We get the same thing either way.
Answer: Either 13, 15 or -15, -13What is the maximum value of this function on the interval [-2,0]
Answer:
2,0?
Step-by-step explanation:
To do this, find your first derivative and then find where it is equal to zero. Because we are only concerned about the interval from -5 to 0, we only need to test points on that interval. (i really don't know hot to explain)
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answer:
y = 0.75x + 35
Step-by-step explanation:
x = number of minutes for a massage
y = total cure of pedicure and a massage
We can represent the information given as coordinate pais such as:
It would cost Angela $35 if she gets only pedicure => (0, 35)
This implies that she spends 0 minute (x) on massage, while total cost (y) is $35
If she spends 20 mins for massage, total cost would be $50 => (20, 50).
This implies she's spends 20 min (x) for massage, while total cost (y) would now be $50.
We can write an equation in slope intercept form, y = mx + b by finding the slope (m) and y-intercept (b).
✔️Using (0, 35) and (20, 50),
Slope (m) = change in y/change in x
m = (50 - 35)/(20 - 0) = 15/20
m = 0.75
The slope, m = 0.75 represents the cost of massage per minute ($0.75 per minute).
✔️The y-intercept (b) = 35, this is the initial cost without having a massage.
✅To write the equation in slope-intercept form, substitute m = 0.75 and b = 35 into y = mx + b.
Thus:
y = 0.75x + 35
in is 26 miles into a 62-mile backpacking trip in the wilderness. Jin ca
ike 6 miles per day. How many more days does Jin need to finish?
Jin needs how many
more days.
Answer:6 days
Step-by-step explanation:
62-26=36
36/6=
6
What is the solution to -1-7?
++
+
-10 -9 -8 -7 -6 -5 4 -3 -2 -1 0 1
+++
2 3 4 5 6 7 8 9 10
do do
O 6
O 8
Answer:
-8
Step-by-step explanation:
We can rewrite as - (1+7) = -8.
solve 58÷4(6×9)+7(7×3)
Answer:
answers 930 ok I hope it help
True or False A vector in space may be described by specifying its magnitude and its direction angles.
True. A vector in space can be described by specifying its magnitude and its direction angles. The magnitude of a vector represents its length or size, while the direction angles determine the orientation of the vector with respect to a reference axis system.
In three-dimensional space, a vector can be decomposed into its components along the x, y, and z axes. By using trigonometric functions, the direction angles of the vector can be determined. The direction angles are typically measured with respect to the positive x-axis, the positive y-axis, and the positive z-axis.
Once the magnitude and direction angles of a vector are known, the vector can be fully described. This description allows for precise calculations and analysis of vector quantities, such as displacement, velocity, and force, in various physical and mathematical contexts.
It's worth noting that there are alternative ways to describe vectors, such as using Cartesian coordinates or unit vectors. However, specifying the magnitude and direction angles provides a convenient and comprehensive representation of a vector in space.
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Find the volume to the nearest whole number.
(7) The volume of the square base pyramid is 122.5 in³.
(8) The volume of the equilateral base pyramid is 311.8 cm².
(9) The volume of the square base pyramid is 2,880 ft³.
What is the volume of the figures?The volume of the pyramids is calculated by applying the following formula as follows;
(7) The volume of the square base pyramid is calculated as;
V = ¹/₃Bh
where;
B is the base area of the pyramidh is the height of the pyramidV = ¹/₃ x (7 in x 7 in ) x 7.5 in
V = 122.5 in³
(8) The volume of the equilateral base pyramid is calculated as;
V = ¹/₃Bh
V = ¹/₃ x (a²√3/4) x h
V = ¹/₃ x (12²√3/4) x 15
V = 311.8 cm²
(9) The volume of the square base pyramid is calculated as;
V = ¹/₃Bh
where;
B is the base area of the pyramidh is the height of the pyramidV = ¹/₃ x (24 ft x 24 ft ) x 15 ft
V = 2,880 ft³
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what is a polynomial of the 5th degree with a leading coefficient of 7 and a constant term 6
Answer: A polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 can be expressed in the following form:
f(x) = 7x^5 + ... + ... + ... + ... + 6
Step-by-step explanation: Since the polynomial has a degree of 5, it will have 6 terms in total, including the constant term. However, the other coefficients are unknown, so we need more information to determine them. For example, we could be given additional roots or points on the curve.
Without any further information, the polynomial can only be expressed in this general form.
Please help ASAP!!! I will mark brainliest!
Format:
{Expression} = {Rewritten} = {Value}
Answer:
3/8 * 24 = 72/8 = 9
5/9 * 18 = 90/9 = 10
11/12 * 36 = 396/12 = 33
What is the approximate distance between the points (-5, 4) and (2, -3)? Round to the
nearest tenth.
Answer:
Step-by-step explanation:
Natasha use the distance formula
d = sq rt [ x2 - x1)^2 + (y2-y1)^2 ]
d = sq rt [ 2 - (-5) ) ^2 + (-3 - 4)^2 ]
d = sq rt [ 2 + 5 ) ^2 + -7^2 ]
d = sq rt [ 7^2 + - 7^2 ]
d = sq rt [ 49 +49]
d = sq rt { 98]
d = \(\sqrt{98}\)
d = \(\sqrt{7*7*2}\)
d = 7\(\sqrt{2}\)
leave it in that from b/c the square root is in exact form :)
A repeated-measures study comparing two treatments with n = 4 participants produces md = 2 and ss = 75 for the difference scores. what is the estimated standard error for the sample mean difference?
The estimated standard error for the sample mean difference is 2.5 .
According to the question
A repeated-measures study comparing two treatments
n = 4
MD(mean difference) = 2
SS (sum of square) = 75
Now,
error for the sample
Formula for standard error
\(S^{2} = \frac{SS}{n-1}\)
by substituting the value
\(S^{2} = \frac{75}{4-1}\)
\(S^{2} = \frac{75}{3}\)
S² = 25
S = 5 (s is never negative)
Standard error of the estimate for the sample mean difference
As
The standard error of the estimate is the estimation of the accuracy of any predictions.
The formula for standard error of the mean difference
standard error of the mean difference =\(\frac{standard\\\ error}{\sqrt{n} }\)
standard error of the mean difference = \(\frac{5}{\sqrt{4} }\)
standard error of the mean difference = 2.5
Hence, the estimated standard error for the sample mean difference is 2.5 .
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A florist charges $2 for each carnation in a bouquet and a $5 delivery fee. You have $25 to spend. Which of the following equations represents the number of carnations, c, that you can purchase?
A.2c+5=25
B.2c−5=25
C.5c+2=25
D.5c−2=25
Answer:
A. 2c + 5 = 25
Step-by-step explanation:
You have 25 dollars to spend so that's your end amount.
It costs 2 dollars for ever carnation, so it's 2 times the amount of carnations you get, hence 2c.
And it's 5 dollars for the delivery fee which you just add to 2c.
I hope this makes sense :)
29. The function f(t) =-16t^2 + 35 gives the height, f (in feet) of a ball t seconds after being dropped from a height of 35 feet above the ground. How long will it take for the ball to fall a distance of 10 feet? How do you know?
The time taken for the ball to fall a distance of 10feet is 1.25secs
Given the function modeled by the height expressed as:
f(t) =-16t² + 35
In order to determine the time taken by the all to fall a distance of 10 feet, hence;
f(t) = 10
10 = -16t² + 35
-16t² = 10 - 35
-16t² = -25
-t² = -25/16
t² = 25/16
t = √25/16
t = 5/4
t = 1.25secs
Hence the time taken for the ball to fall a distance of 10feet is 1.25secs
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Need help on this one
Answer:
basically u dont do it because it wount mean anything in da future.
Step-by-step explanation:
:)
What is 7 to the 2018th power
Answer: infinity
the answer should be infinity since the number 7 will have to be multiplied with itself 2018 times.
hope that helps....
brian, tim and kenny got paid a total of $240 for mowing neighborhood lawns . They split the money in the ratio of 5:9:10 . how much money did each boy make . PLEAEEEE SHOW THE work i’m really struggling rn
Answer:
$50 for Brian
$90 for Tim
$100 for Kenny
Step-by-step explanation:
Let 5x = amt for Brian
9x = amt for tim
10x = amt for ken
5x + 9x + 10x = 240
24x = 240
x = 10
5x = 5(10) = $50 for Brian
9x = 9(10) = $90 for Tim
10x = 10(10) = $100 for Kenny
Answer:
Step-by-step explanation:
5x + 9x + 10x = $240
x = $10
Brian got 5x = $50
Tim got 9x = $90
Kenny got 10x = $100
What is the mean in 74,75,80,76,75,81,78?
Answer:
77
Step-by-step explanation:
Add all the numbers up, then divide it by how many numbers there are in the set.
If y = 4 find slope, X-intercept and y-intercept.
Answer:
An equation in the form y = mx + b is in the 'slope y-intercept' form where m is the slope and b is the y-intercept. We can rewrite our equation, y = 4, in slope y-intercept form as follows: y = 0x + 4. Here, it is clear that the slope, or m, is zero. Therefore, the slope of the horizontal line y = 4 is zero
What is 2/3 to the 3rd power?
an alloy consists of steel gold and brass in the ratio 5:3:7 determine the amount of each metal in 150g of the alloy
Answer: 50g steel, 30g gold and 70g brass
Step-by-step explanation:
This means for every 5g of steel there is 3g of gold and 7g of brass. We will find how many g there are total for every 5g of steel.
5 + 3 + 7 = 15
Next, we will divide 150g by 15g to see how many times the ratio will "repeat" to create the 150g of alloy.
150g / 15g = 10g
Next, we will multiply each amount of metal in one ratio by 10.
5g * 10 = 50g steel
3g * 10 = 30g gold
7g * 10 = 70g brass
Answer:
Step-by-step explanation
150g of the alloy contains a certain amount of steel,gold and brass. We thus find the total ratio of steel,gold and brass which will be equal to 15 {5 + 3 + 7}If 15 which is the total ratio is equal to 150, what about 5 which is the ratio of steel?15=150g 5 * 150g/15[we cross multiply 5=? get 5 times 150 multiply by 15to get 50g of steel.
15=150g 3*150g/15 to get 30g of gold.3=?15=150g 7*150g/15 to get 70g of bras.7=?To confirm the answer, we take 50g of steel + 30g of gold + 70g of brass to get 150g of alloy.\
Theorem 4.4.3 - Transitivity of Divisibility
For all integers a, b, and c, if a divides b and b divides c, then a divides c.
Theorem 4.4.3 is the transitivity of divisibility theorem, which states that for all integers a, b, and c, if a divides b and b divides c, then a divides c. In other words, if a is a factor of b and b is a factor of c, then a is also a factor of c.
To prove this theorem, we can use the definition of divisibility, which states that if a and b are integers, then a divides b if and only if there exists an integer k such that b = ak. Suppose that a divides b and b divides c. Then, we can write b = am and c = bn, where m and n are integers.
Substituting b = am into the expression for c, we get c = anm. Since n and m are integers, their product nm is also an integer, which means that c = a(nm) is a multiple of a. Therefore, a divides c, which proves the transitivity of divisibility theorem.
This theorem is a fundamental property of divisibility and is often used in number theory and other mathematical areas. It allows us to establish relationships between divisors and can be used to simplify calculations involving factors and multiples of integers.
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the school has $925 to spend on new books for the libray .each book costs $9.95. estimate how many books can be bought
The number of books bought by the school is 92.
Here it is given that the school spend $925 to buy new books for the library.
The cost of each book is $9.95
So we have to find the number of books that can be bought.
By dividing the total money spent by the cost of each book we get the number of books bought.
Let n be the number of books bought.
n × 9.95 = Total money spend on the books
As we know the total money spend on the books is $925.
So we get:
925 = n × 9.95
n = 925/ 9.95
= 92
Therefore the total number of books bought is 92.
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category: 05 mathematics knowledge a teacher surveys the class to see how many hours of video games the students have played in the previous week. below are the results of the survey. hours played number of students 0 3 1 2 2 4 3 0 4 5 5 2 6 9 7 or more 2 what is the mode of the survey results?
The mode of the survey results is 6 hours, as this was the most commonly reported number of hours of video games played in the previous week.
The mode of the survey results is the most frequently occurring number of hours of video games played in the previous week. In this survey, the most commonly reported number of hours played was 6. This is because 9 students reported playing 6 hours of video games in the previous week, which is the highest number of students reporting any single amount of hours played. The other numbers of hours played were reported less often, with 2 students reporting 5 hours, 4 students reporting 2 hours, 2 students reporting 1 hour, and 3 students reporting 0 hours. Therefore, the mode of the survey results is 6 hours.
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Suppose you are interested in the determinants of college tuition prices. You collect data on a random sample of 500 colleges and universities in the U.S. in 2015. Then you estimate the following model using OLS, where tuition is measured in $1,000s: Tuition=7+4+Rank-0.20*Size+8*Private-0.4*LibArts Rank is the college's rank, ranging from 1 to 5, according to US News and World Report. Size is the number of students who attend the college, measured in 1,000s. Private is a binary variable that equals 1 if the college is private and equals 0 if the college is public. LibArts is a binary variable that equals 1 if the college is a liberal arts college and equals 0 otherwise. Standard error for betalhat=2 Standard error for betalhat=0.7 Standard error for beta2hat=0.12 Standard error for beta3hat=2 Standard error for beta4hat=0.6 R-squared=0.20 What is the predicted cost for a student who attends a private liberal arts college, which has 1,500 students, and a rank of 4.5? Suppose the student in question 1 switches from her college to a public, non-liberal arts college. Her new college has 15,000 more students than her old college, and its rank is 0.5 lower. How much money does she save in tuition?
The predicted cost for a student attending a arts college with 1,500 students and a rank of 4.5 can be calculated using the given regression model: Tuition = 7 + 4*Rank - 0.20*Size + 8*Private - 0.4*LibArts.
In this case, Rank = 4.5, Size = 1.5 (since it's measured in 1,000s), Private = 1 (since it's a private college), and LibArts = 1 (since it's a liberal arts college). Plugging these values into the model, the predicted tuition cost would be: Tuition = 7 + 4*(4.5) - 0.20*(1.5) + 8*1 - 0.4*1 = $26.1 thousand.
If the student switches from her current private liberal arts college to a public, non-liberal arts college with a rank 0.5 lower and 15,000 more students, we need to adjust the Size and Rank variables accordingly. Assuming the student's current college is still private, the new values would be Rank = 4.5 - 0.5 = 4 and Size = 1.5 + 15 = 16.5 (since it's measured in 1,000s). With the new values, we can calculate the predicted tuition cost for the public college: Tuition = 7 + 4*(4) - 0.20*(16.5) + 8*0 - 0.4*0 = $22.4 thousand.
To determine how much money the student saves in tuition, we calculate the difference between the predicted costs of the two colleges: $26.1 thousand - $22.4 thousand = $3.7 thousand. Therefore, by switching from her current private liberal arts college to a public, non-liberal arts college with a lower rank and larger size, the student saves $3.7 thousand in tuition.
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Which pair of triangles can be proven congruent by SAS?
Answer:
i don't know
Step-by-step explanation:
i am lower grade srry