Answer:
Step-by-step explanation:
(2.2×10^4)*(7.1×10³)
=(2.2×7.1)×10{4+3}
=15.62×10^7
=1.562×10^8
The Scale drawing of a rectangular room measures 10 cm long by 6cm wide. The actual width of the room is 15 feet. What is the actual perimeter of the room ,in feet?
Answer:
80 ft
Step-by-step explanation:
6cm is 15ft
10cm is ?ft
10x15 is 150
150 divided by 6 is 25
25+15+25+15 is 80
What is the remainder in 32 divided by 1848
Answer:57.75
57 Remainder 24
Step-by-step explanation
Stephanie can run 5 miles in 45 minutes. How long will it take her to run 10 miles?
Answer:
89
Step-by-step explanation:
so u have 5 miles in 45 mins so u do 45 x 2 then u get 89 minutes
Answer:
Stephanie can run 5 miles in
= 45 minutes
She can run 1 mile in
= 45/5
= 9 minutes
So, she can run 10 miles in
= 10×9
= 90 minutes or 1 hr 30 minutes
Please help!!! Due today!! Will mark brainliest!!!!
Answer:
$231Step-by-step explanation:
Given:
A = 44000i = 0.375% or 0.00375n = 12*12 = 144 (12 years and 12 periods per year)d = ?Use the given formula and find d:
[tex]44000 = d(\frac{(1+0.00375)^{144}-1}{0.00375})[/tex][tex]44000 = d*190.47[/tex][tex]d = 44000/190.47[/tex][tex]d = 231[/tex]Can you please help me
Answer:
63
Step-by-step explanation:
27/6=4.5
14*4.5=63
9x + 3y = 39
-5x – 3y
-35
Add to eliminate y.
O Subtract to eliminate y.
Subtract to eliminate x.
O Add to eliminate x.
Answer:
I don't know
Step-by-step explanation:
thanks for the points
Find the volume of the sphere.
6
Answer 35
Which of the lines below has a negative slope? A B C D A. Line A O B. Line B G Line C D. Line D
Answer:
A. Line A
Step-by-step explanation:
Line A is decreasing so it has a negative slope.
An investigator predicts that dog owners in the city spend more time walking their dogs than do dog owners in the country. The investigator gets a sample of 23 city owners and 21 country owners. Do dog owners in the city spend more time walking their dogs than do dog owners in the country?
Answer:
less time
Step-by-step explanation:
because there is more space for them to move around
The product of 0.4 and a number is 8.
(a) Represent the statement as an equation. Use n for the variable.
(b) Determine the solution set using the replacement set .
Answer:
20 is a solution to the equation by using the replacement set.
Let the unknown variable be n.Given the following data:
Output = 8a. To represent the statement as an algebraic equation:
In this exercise, you're required to write a mathematical expression (algebraic equation) that represents the word sentence given.
Translating the word sentence into an algebraic expression, we have;
The product of 0.4 and a number is 8:
[tex]0.4n = 8[/tex]
b. To determine the solution set using the replacement set:
Let's use the following set of numbers (0, 1, 10, 20)When n = 0:
[tex]0.4(0)=8\\\\0\neq 8[/tex]
When n = 1:
[tex]0.4(1)=8\\\\0.4\neq 8[/tex]
When n = 10:
[tex]0.4(10)=8\\\\4\neq 8[/tex]
When n = 20:
[tex]0.4(20)=8\\\\8= 8[/tex]
Therefore, 20 is a solution to the equation by using the replacement set.
Find more information on algebraic expression here: https://brainly.com/question/4728821
Answer:
20 is the answer.
Step-by-step explanation:
Two sides of a triangle are 11 can and 14 cm what are all the possible values for the length of the third side
Answer:
Step-by-step explanation:
The third side is thus, less than 14 + 11 = 25 cm. The side cannot be less than the difference of the two sides. Thus, the third side has to be more than 14 - 11 = 3 cm. So, the length of the third side could be any length greater than 3 cm and less than 25 cm.
If using the method of completing the square to solve the quadratic equation
x^2+2x – 31 = 0, which number would have to be added to "complete the
square"?
==
Answer:
See belowStep-by-step explanation:
Given equation:
x² + 2x - 31 = 0Complete square as follows:
x² + 2x + 1 - 31 = 1(x + 1)² = 32x + 1 = ± √32x = - 1 ± 4√2Step-by-step explanation:
We need to solve the equation using completing the square method .
=> x² - 2x - 31 = 0
=> x² -2*1*x + 1² - 1² - 31 = 0
=> ( x -1)² - 32 = 0
=> (x+1)² = 32
=> x +1 = ±√32
=> x = ±4√2 - 1
6. (a) Find a recurrence relation for the number of n-digit binary sequences with no pair of consecutive 1s. (b) Repeat for n-digit ternary sequences
(a) There are 2 sequences of length 1 that fit the bill: 0 and 1. So if [tex]b_n[/tex] is the number of permissible sequences, then [tex]b_1=2[/tex].
To the sequence 0, we can attach either 0 or 1 at the end, while the sequence 1 must be followed by 0. Then the permissible sequences of length 2 are 00, 01, and 10, so [tex]b_2=3[/tex].
Now consider a sequence of length n + 1, of which there are [tex]b_{n+1}[/tex].
• If the last digit is 0, then we got this sequence by simply joining 0 to one of [tex]b_n[/tex] sequences. In other words, there are [tex]b_n[/tex] permissible sequences of length n + 1 that end in 0.
• If the last digit is 1, then the previous digit must have been 0. Put another way, we join 01 to a permissible sequence of length n - 1 (there are [tex]b_{n-1}[/tex] of them). So there are [tex]b_{n-1}[/tex] permissible sequences of length n + 1 that end in 1.
These cases are mutually exclusive, so the number of (n + 1)-length permissible sequences is given by
[tex]\begin{cases}b_1 = 2 \\ b_2 = 3 \\ b_{n+1} = b_n + b_{n-2} & \text{for }n\ge2\end{cases}[/tex]
(b) The reasoning for a permissible ternary sequence is similar. Let [tex]t_n[/tex] be the number of sequences of length n not containing 11.
We first note that [tex]t_1 = 3[/tex], since we can have 0, 1, or 2; and [tex]t_2 = 8[/tex], since we can have 00, 01, 02, 10, 12, 20, 21, or 22.
Consider a sequence of length n + 1 ([tex]t_{n+1}[/tex] of these).
• If the last digit is 0, then we joined 0 to a permissible sequence of length n. So there are [tex]t_n[/tex] permissible sequences of length n + 1 ending in 0.
• If the last digit is 1, then the last two digits must be either 01 or 21. Since there are 2 choices for the n-th digit, there are [tex]2t_{n-1}[/tex] permissible sequences of length n + 1 ending in 1.
• If the last digit is 2, then we essentially have the same situation as if the sequence ended in 0, so there are [tex]t_n[/tex] sequences of length n + 1 ending in 2.
Then the recurrence for ternary permissible sequences is
[tex]\begin{cases}t_1 = 3 \\ t_2 = 8 \\ t_{n+1} = 2t_n + 2t_{n-1} & \text{for }n\ge2\end{cases}[/tex]
Juanita borrowed $600 to purchase a new computer. She was charged 7% interest for two years. She used the simple interest formula to find the interest.
I = 600(7)(2)
What error did Juanita make and how will her error affect the interest she calculates? Explain.
please help
Answer:
The error she made was multiplyng by 7. This would affect her calculations as 7 in percentage form is represented as 700%. The 700% interest would basically mean she owes 7 times the amount she borrowed. The correct number would be 0.07 because 0.07 represents 7% which is the interest. Another error that was made was multiplying 2 to the entire equation. The only thing that needs to be doubled is the interest as every year the interest takes 7%. The correct way would be to put 0.07*2 in paranthesis. The correct equation is
I = 600(0.07*2)
Simplifica e indica la opción del resultado de 9 + 3 {4/[ 6-(6-2)] + 5 }
Seleccione una:
a. 24
b.3
C. 30
d. 20
Answer:
a ang anwers
Step-by-step explanation:
no explanation
4x - 1 all over 2 = x + 7
What is x
Answer:
Step-by-step explanation:
4x-2x=7+1 2x=8 x=4.
Lines A and B are parallel
Answer:
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
Step-by-step explanation:
Answer:
....................
3 If 3/4 gallon of paint covers 1/3 of the wall, then how much paint is needed for the entire wall?
Answer:
2/3 I think so but not sure
Rita spent a total of $60 at the grocery store.Of this amount,she spent $21 on fruit.What % of the total did she sepend on fruit.
Answer:
35%
Step-by-step explanation:
21/60*100 =2100/60 it is equal to 35%
to calculate percent it is number over total answer multiplied by hundred
brainiest, please
The phone costs $600. The sales tax is 6% of the price of the phone. Which statements are true? Select each correct statement. A.The sales tax on a $600 phone is $36. B The total price of the phone with sales tax is $636. C. The sales tax on a $600 phone is $3.60. D The total price of the phone with sales tax is $603.60
Answer:
A. 6 percent of 600 is 360.
Step-by-step explanation:
Multilply 6 x 600 =36
Answer:
A.The sales tax on a $600 phone is $36.
Step-by-step explanation:
$600 * 0.06= 636
Will give brainlest pls help
Answer:
i believe it is (c)
Step-by-step explanation:
Answer:
C) 3
Step-by-step explanation:
See the image
1) A survey asked the question, “Do you think a vaccination should be mandatory to enter
shopping areas?!” to a random sample of 1068 Jordanians. The results showed that 71.2%
responded that vaccination should mandatory. Determine which of the following is an
observation, a variable, a sample statistic (value calculated based on the observed sample), or a
population parameter.
(a) A Jordanian that was asked the question.
(b) The response of the Jordanian (Yes: vaccination should be mandatory. No: vaccination
should not be mandatory).
(c) 71.2%.
(d) The percentage of all Jordanians who agreed with the statement that vaccination should
be mandatory to enter shopping areas.
Given that a survey asked the question, "Do you think a vaccination should be mandatory to enter shopping areas?" to a random sample of 1068 Jordanians, and the results showed that 71.2% responded that vaccination should mandatory, to determine which of the following is an observation, a variable, a sample statistic (value calculated based on the observed sample), or a population parameter, the following statistical reasoning must be performed:
(a) A Jordanian that was asked the question.
-An observation, as the person questioned is part of the study and therefore, it is an individual observation that makes up the trend.
(b) The response of the Jordanian.
-A variable, since it is one of the two possible answers that the survey has.
(c) 71.2%.
-A population parameter, because it represents a specific percentage with respect to the total population.
(d) The percentage of all Jordanians who agreed with the statement that vaccination should be mandatory to enter shopping areas.
-A sample statistic, since it is a statistical element that arises from the survey.
Learn more in https://brainly.com/question/17716064
Which one is this. I don't really understand
Answer:
i need points and this is a long question from before
thanks for the points
Step-by-step explanation:
Irene is N years old. If Tom is twice as old, which of the following algebraic statements shows his age now?
A. 2n
B. 2n + x
C. 2 - n
D. n - 2
Explanation:
The n is a placeholder for a number. Writing 2n means we multiply by 2.
For example, if Irene is n = 20 years old, then Tom is 2n = 2*20 = 40 years old.
Let y be a function of x such that 2x - 3y = 6. What is the rate of change of y with respect to x?
Given the equation 2x -3y= 6
since we are to find the rate of change of y with respect to x we make y subject of formula
2x -3y= 6
3y = 2x - 6
divide through by 3
y= 2x/3 - 6/3
y=2x/3 - 2
dy/dx = 2/3
what is 32,020.20 rounded to the nearest tenths
Answer:
32,020
Explanatiojn:
6/23 divided by 1/5 plz help
Answer:
30 / 23
Step-by-step explanation:
to divide two fractions, multiply by the reciprocal.
The reciprocal of 1/5 is 5/1. We will rewrite the equation as:
[tex]\frac{6}{23}[/tex] times [tex]\frac{5}{1}[/tex]
6 x 5 = 30
23 x 1 = 23
the answer is 30 / 23
The Quotient is 30/23.
What is Division?One of the four fundamental mathematical operations, along with addition, subtraction, and multiplication, is division. Division is the process of dividing a larger group into smaller groups so that each group contains an equal number of things.
Given:
6/23 divided by 1/5
As, division is not possible in fraction so we will perform the multiplication
= 6/23 ÷ 1/5
= 6/23 x 5
= 30/ 23
Learn more about Division here:
https://brainly.com/question/21416852
#SPJ5
Find the length of line AC in the following picture.
I've been at a loss at how to do this one for a while. Someone, please help? No links, no spam. If you don't know the answer, then don't answer.
Answer:
12.72 m
Step-by-step explanation:
You're going to use the left side from the middle of AD up to point A. You see that's the same as a radius, so its length is 4.5. Then you can use the Pythagorean theorem to find the hypotenuse, the blue line from X to A.
(4.5)^2+(4.5)^2=x^2
40.5=x^2
x=6.36
and AC is two of the line you just figured out so 6.36x2=12.72m
A car renting agency charges a fixed rate of $8 per day plus 8 cents per mile. If a family paid the agency $260 for the use of a car on a 2,450 mile trip, how many days was the car use
Answer: 8 days your welcome (:
Answer:
8 days
1day = $8.08
$8.08 * 8 = $64.64 so this is wrong.
$260/$8.08= about 31 days.
What fraction is equal to 2 1/2?
Answer:
5/2
Step-by-step explanation:
