Answer:
The correct answer is C. 160 minutes.
Step-by-step explanation:
Since Tammy has begun an exercise program, and she worked out five days the first week for 28 minutes, 32 minutes, 21 minutes, 38 minutes and 42 minutes, to find an estimate of the total number of minutes Tammy exercised during the week, rounding each figure to the nearest tenth, the following calculation must be performed:
28 + 32 + 21 + 38 + 42 = X
30 + 30 + 20 + 40 + 40 = X
160 = X
Thus, the estimated time of exercise that Tammy performed was 160 minutes.
What is the CIRCUMFERENCE of this pie?
Give an approximate answer by using 3.14 for π.
SHOW YOUR WORK!
Find the polynomial of degree 3 such that the coefficient of x2
is three less than the coefficient
of x3
; the coefficient of x is 3 times the coefficient of x2
; and the constant term is two more than
the coefficient of x3
. The sum of the coefficients is -4.
Answer:
1/5[8x³ –7x² –21x + 18]
Step-by-step explanation:
Let the polynomial be:
ax³ + bx² + cx + d
Where:
a => is the coefficient of x³
b => is the coefficient of x²
c => is the coefficient of x
d => is the constant term.
From the question given above,
Coefficient of x² (b) = a – 3 ..... (1)
Coefficient of x (c) = 3b ...... (2)
Constant term (d) = 2 + a ..... (3)
Sum of coefficient (a + b + c) = –4
a + b + c = –4
b = a – 3
c = 3b = 3(a – 3)
a + b + c = –4
a + (a – 3) + 3(a – 3) = –4
a + a – 3 + 3a – 9 = –4
Collect like terms
a + a + 3a = –4 + 3 + 9
5a = 8
Divide both side by 5
a = 8/5
Substitute the value of a into equation (1)
b = a – 3
a = 8/5
b = 8/5 – 3
b = (8 – 15)/5
b = –7/5
Substitute the value of b into equation (2)
c = 3b
b = –7/5
c = 3(–7/5)
c = –21/5
Substitute the value of a into equation (3)
d = 2 + a
a = 8/5
d = 2 + 8/5
d = (10 + 8)/5
d = 18/5
SUMMARY:
a = 8/5
b = –7/5
c = –21/5
d = 18/5
Thus, the polynomial:
ax³ + bx² + cx + d
8/5x³ + (–7/5)x² + (–21/5)x + 18/5
8/5x³ –7/5x² –21/5x + 18/5
1/5[8x³ –7x² –21x + 18]
Can you explain to me how to do these multiplications please?
Simplify this fraction: 9/33
Answer:
3/11
Step-by-step explanation:
Both numbers are easily simplified by 3 and that's as far as it can go because 11 is a prime number
9÷3=3
33÷3=11
3/11=9/33
Answer:
3/11
Step-by-step explanation:
Find the GCD (or HCF) of numerator and denominator
GCD of 9 and 33 is 3
Divide both the numerator and denominator by the GCD
9 ÷ 3
33 ÷ 3
Reduced fraction: 3/11
9/33 simplified gives you your answer which is 3/11
How many total hours did the girls spend cleaning their home
Answer:
it should be 12
Step-by-step explanation:
because 3x4=12
Answer: 12
Step-by-step explanation: each girl spent 3 hours cleaning, their was 4 girls so 4 x 3 = 12
Question 4
12 marks
4.1 a. In each case find the unit cost and then state which is the better buy.
4 marks
6kg of potatoes for $2.45 or
15 kg of potatoes for $5.9 or
10 kg of potatoes for $3.92?
Answer:
The better buy is to buy 10 kilograms of potatoes at $ 3.92, since each kilogram costs $ 0.392.
Step-by-step explanation:
To find the cost per unit in each case and then state which is the better buy, the following calculations must be performed:
6kg of potatoes for $ 2.45:
2.45 / 6 = 0.408
15 kg of potatoes for $ 5.9:
5.90 / 15 = 0.393
10 kg of potatoes for $ 3.92:
3.92 / 10 = 0.392
Thus, the better buy is to buy 10 kilograms of potatoes at $ 3.92, since each kilogram costs $ 0.392.
It takes your dog, Patches, 50 days to eat a 10 pound bag of dog food. How many pounds of food does your dog eat each day? Question 2 options: 0.2 lb 5 lbs 2 lbs 0.5 lb
Answer:
5 pounds of food each day
Step-by-step explanation:
So you do 50 divided by 10 and you get 5 pounds that your dog eats each day.
p.s. If I am wrong I am so sorry just trying to help people out.
Find the errors and correct the following mathematical sentences.
Answer:
This is your answer
What is the circumference of the circle with a radius of 31
Answer:
circumference = 194.68
Step-by-step explanation:
c = π2r
c = (3.14)(2)(31) = 194.68
What is the value of pi to the hundred-thousands place. (Answer quickly going for 45 points)
Answer:
3.14159
Step-by-step explanation:
pi
What is the average age of the porcupines at your zoo? What is the standard deviation? Round your answers to the nearest tenth.
Answer:
is there a pic?
Step-by-step explanation:
I need help with these
3 more than half a number is less than 20
2 times less than 16 is at least 50
100 is less than a number divided by 2.83
I just need them translated into numbers I can find the answer from there
Step-by-step explanation:
n/2 + 3 < 20
50 >= 16- 2n
n / 2.83 > 100
A female rabbit can give birth to over 40 baby rabbits a year. Suppose all of her offspring survived and reproduced, all of their offspring survived and reproduced, and so on. If that happened, in only eight years the mass of rabbits would exceed the mass of Earth!
So, why aren’t we overrun with rabbits? What keeps the rabbit population in check?
(It says Mathematics because I couldn't find the right subject!)
Answer:
rabbit predators >:)
Step-by-step explanation:
a rectangular garden will be fenced on all four sides. If 120 ft. of fencing are available, what should be the dimensions of garden to maximize the area? What is the maximum area
Answer:
30 by 30. Area=900
Step-by-step explanation:
The dimensions of the garden to maximize the area are length + width = 60 and the maximum area is 900 ft².
A rectangular garden will be fenced on all four sides.
120 ft. of fencing is available, what should be the dimensions of the garden to maximize the area and What is the maximum area to be determined.
The rectangle is a four-sided polygon whose opposites sides are equal and has an angle of 90° between its sides.
The perimeter of the rectangle = 120
Perimeter = 2 (length + width)
120 =2(length + width)
length + width = 120/6
length + width = 60 - - - -(1)
So, the sum of the sides of the rectangle should not increase by 120.
Now, the Maximum area of a rectangle,
Let Length = width
Equation 1
Length + Length = 60
length = 60/2
length = 30 = width
Area of the rectangle = length * width
= 30 * 30
= 900 ft²
So the maximum area of the rectangle is 900ft²
Thus, the dimensions of the garden to maximize the area is length + width = 60 and maximum area is 900 ft².
Learn more about rectangles here:
https://brainly.com/question/16021628
#SPJ5
Write an algebraic expression for each:
the sum of a number and 45
12 more than a number
the difference of 1 and a number
13 subtracted from a number
Answer:
X + 45
X + 12
1 - x
X - 13
Step-by-step explanation:
Using the keywords sum of, more than, and subtracted will help you. (You can also flip the expression since it didn't say how.
Lucy bought a couch that cost $1,000.00. she bought it using her debit card. She forgot she only has $900 in her checking account. What should lucy be worried about? 1) how much tax is included 2) discounts 3) nothing 4) overdraft fees
Answer:
4) overdraft fees
Step-by-step explanation:
if she now has a negative balance then she owes money to the couch store
Answer:
Overdraft fees
Step-by-step explanation:
An overdraft occurs when money is withdrawn in excess of what is on the current account. In this situation the account is said to be "overdrawn".
Raul has $460 in his checking account. Each month, $45 is automatically deducted from his account to pay for his cell phone plan. He makes no other deposits or withdrawals. He wants to always have more than $100 in his account. What is the greatest number of months he can pay for his cell phone and still have more than $100 in his account?
7 months
8 months
9 months
10 month
Answer:
8 months
Step-by-step explanation:
because it's right just trust me
Answer:
8 months
Step-by-step explanation:
right on edge nuity <3
What values of the variables highlighted would create an equation infinitely many solutions
2/3 times 21=
i need help again!!!
Answer:
14
Step-by-step explanation:
Rocky pays a flat rate of $5 per month plus $0.10 per minute for
his long-distance phone plan. He wants his total monthly bill to be
less than $20.
Need Help
What is the value of x?
I’LL MARK BRAINLIEST
value of X is 26 Y, is 23, Z is 8
I really need help on this!
hii! i just wanted to say hope you're having a fantastic day and hope that things are going well (: stay strong and stay safe!
If a punch bowl hold 216 ounces of punch how many 8 ounce glasses can be filled from the punch bowl
Answer:
27 glasses
Explanation:
216 divided by 8 is 27
One grocery clerk can stock a shelf in 25 min. A second clerk requires 45 min to stock the same shelf. How long would it take to stock the shelf if the two clerks worked together?
Answer:
clerk A and clerk B can simultaneously stock a shelf in 180/13 minutes
Step-by-step explanation:
Let the first clerk be A and the second clerk be B
A can stock a shelf in 20 min
B can stock a shelf in 45 min
Consider the complete work to be W
A’s rate of stocking = per minute
B’s rate of stocking = per minute
When, A and B work simultaneously, rate of work done =
Total work done simulatenously = 180/13
Therefore, clerk A and clerk B can simultaneously stock a shelf in 180/13 minutes
Answer:
Step-by-step explanation:
The rate of each clerk is 1/25 and 1/45 respectively so together they can stock the shelf
t/25+t/45=1 (the least common multiple of 25 and 45 is 225)
t/25(9/9)+t/45(5/5)=1
(9t+5t)/225=1
9t+5t=225
14t=225
t=225/14 min
t=16 minutes (rounded to nearest minute)
( or 16 minutes and about four seconds :) )
3. A square candy box has sides the
What is the candy box's area?
Step-by-step explanation:
you need to know something about numbers in order to answer this question
According to the graph, how much money is spent on education?
8 million
16 million
12 million
4 million
Answer:
16
Step-by-step explanation:
Write an that
5. Hog head cheese costs $2.15 per pound. ad equation best represents y, the total
cost of x pounds of Hog Head cheese?
Answer:
[tex]y = 25x[/tex]
Step-by-step explanation:
Given
[tex]Rate = 25[/tex]
Required
Cost of x pounds
To do this we simply multiply x by the rate
[tex]y =Rate * x[/tex]
[tex]y = 25 * x[/tex]
[tex]y = 25x[/tex]
I’m confused on this one I have one more
Answer:
because the diagonals are congruent, you're going to set them equal.
2x+13=4x-1
13=2x-1
14= 2x
x=7
it's that easy
The series converges by the Limit Comparison Test. Each term is less than that of a convergent geometric series. The series converges by the Limit Comparison Test. The limit of the ratio of its terms and a convergent p-series is greater than 0. The series diverges by the Limit Comparison Test. Each term is greater than that of the divergent p-series. The series diverges by the Limit Comparison Test. The limit of the ratio of its terms and the harmonic series is greater than 0.
Answer:
hello your question has some missing information attached below is the complete question
answer : The series diverges by the Limit Comparison Test. The limit of the ratio of its terms and the harmonic series is greater than 0.
Step-by-step explanation:
steps to determine if the series converges
step 1 : apply series limit comparison test
step 2 : consider Cauchy's convergence condition ; which states that ∑an converges if and only if for every ∈ > 0 there is a natural number N
attached below is the detailed solution
Which statement best describes the effect on a image when it is reflected over the x axis
Answer:
Vertical flip