Answers
We have our initial unit of speed: 343 m/s.
We want to find how many kilometers sound will travel when the air is at 68 degrees in five seconds.
Step 1: Multiply 343 by five. (1 sec. to 5 secs.)
343 * 5 = 1715
Step 2: Divide 1715 by 1000. (1 m. to 0.001 km)
1715/1000 = 1.715 km/5 secs.
At a temperature of 68°, sound will travel 1.715 km in 5 seconds.
Related Questions
parallel lines intersect in two points true or false
Answers
Answer:
it's false.
Parallel lines don't intersect in two points
polynomials -7x^2+4x-1
Answers
Answer:
that is a trinomial it is only two signs
Which set of integers is ordered from least to greatest -13 , 4, 0, -8 -5 , -2, 3, 1 -12 , -18 , -4 , 7 -15, 6 , -9 , -21
Answers
Given:
The set of integers in the options.
-13 , 4, 0, -8
-5 , -2, 3, 1
-12 -18 , -4 , 7
-15, 6 , -9 , -21
To find:
The set of integers that is ordered from least to greatest.
Solution:
We know that the larger negative value is the smaller value and the larger positive value is the greater value.
Ordered from least to greatest means first we need to write the smallest value, write the value larger than and the greatest value occurs at the end.
In option A, we have -13 , 4, 0, -8. Here, 4>0. So, the option A is incorrect.
In option B, we have -5 , -2, 3, 1. Here, 3>1. So, the option B is incorrect.
In option C, we have -12 -18 , -4 , 7 Here, -12>-18. So, the option C is incorrect.
In option D, we have -15, 6 , -9 , -21. Here, 6>-9. So, the option D is incorrect.
Therefore, all the options are incorrect.
4. The population of a small town is given by the function p=35t +1450, where t is the number
of years since 2015. What would the town's population be in 2020?
(1) 1,485
(3) 1,625
(2) 1,570
(4) 1,700
Answers
Answer:
1625
Step-by-step explanation:
[tex]35(5) + 1450 = 1625[/tex]
35 x 5 = 175
175 + 1450 = 1625
4 A triangle with a height of 3 cm and a base
of x cm is the result of reducing each
dimension by a scale factor of one-third.
The area of the original triangle is
162 cm². What was the original length of
the base?
Answers
Answer:
L = 36
Step-by-step explanation:
"A triangle with a height of 3 cm and a base of x cm is the result of reducing each dimension by a scale factor of one-third"
We are looking for the original. This triangle was reduced by 1/3, so we would have to mulitply by 3 to get the original triangle measurements.
height = 3 x 3 = 9
length = x * 3
"The area of the original triangle is 162 cm²."
Area = Base x Height/2
162 = (x*3) * 9/2
324 = (x*3)*9
36 = x*3
x = 12
What was the original length of the base?"
Length = x * 3
= 12 * 3
Length = 36
I hope this helped!
quantos segundos tem 80 anos?
Answers
Answer:
2,522,880,000 segundos.
Can you help me with my work don’t send no link
Answers
Answer:
A and C!
Step-by-step explanation:
a: for a just move all the terms not containing x to the right side of the equation!
c: divide each term by 4 and simplify!
-
hope this helped <3
Which expression is equal to x^2- y^5?
Answers
x^2-y^5 would equal 0
I need help please hurry up
Answers
Answer:
6
Step-by-step e6xplanation:
Please help my test is tomorrow thank you god bless you all
Answers
Answer:
"(2x - 1) (x - 7)." i think
Step-by-step explanation:
1. Find the surface area of the rectangular prism below.
7 in. 12 in
A. 1620 in2
B. 882 in2
C. 300 in2
D. 810 in2
Answers
Answer:
I think its c!!!!!!!!!!!!!!!!!
if an is defined as a geometric sequence, is the sequence 1/an also a geometric sequence? explain your reasoning.
Answers
Answer:
Since An/An-1 = r
(1/An)/(1/An-1) = An-1/An = 1/r
so, the ratio between terms is still constant.
Step-by-step explanation:
If an is defined as a geometric sequence, is the sequence 1/an also a
geometric sequence because the ratio between terms remain constant.
What is a geometric sequence and how to find its nth terms?Suppose the initial term of a geometric sequence is a and the term by which we multiply the previous term to get the next term is r
Then the sequence would look like
[tex]a, ar, ar^2, ar^3, \cdots[/tex]
(till the terms to which it is defined)
Thus, the nth term of such sequence would be[tex]T_n = ar^{n-1}[/tex]
Since An/An-1 = r
(1/An)/(1/An-1) = An-1/An = 1/r
Therefore, the ratio between terms is still constant.
Learn more about geometric sequence here:
https://brainly.com/question/2735005
#SPJ2
What is the value of the expression 8 − (7 − 4) + 12 x 2?
Answers
Answer:
19
Step-by-step explanation:
im smart
Answer:
29
Step-by-step explanation:
just do the math lol
how do u convert -95 3/4 as a decimal ?
Answers
Answer:
Simply -95.75
Step-by-step explanation:
3/4 or 3 ÷ 4= 0.75
-95 + -0.75 = -95.75
Wiki
Help I’ll give Brainly est
Answers
Write the following quadratic expression in standard form: ( 2 x − 1 ) ( 3 x − 1 )
Answers
Answer:
6[tex]x^{2}[/tex] - 5[tex]x[/tex] + 1
Step-by-step explanation:
Standard form is: [tex]ax^{2} +bx+x[/tex]
To reach that you have to distribute:
(2x - 1) (3x - 1)
2x (3x - 1) = 6[tex]x^{2}[/tex] - 2[tex]x[/tex]
-1 (3x - 1) = -3[tex]x[/tex] + 1
Combine like terms:
6[tex]x^{2}[/tex] - 5[tex]x[/tex] + 1
The sum of two numbers is 25. The difference between twice the first number and the second number is -10. Find the numbers
Answers
Answer:
15 and 10
Step-by-step explanation:
Let the two numbers be x and y
x+y= 25
2x-2y=-10
An 18-foot board is leaning against a wall. It is set 6 feet from the base of the wall. How far up the wall does the board reach? Round your answer to the nearest tenth of a foot.
Answers
Answer: 19
Step-by-step explanation:
What is the value of h?
Answers
Answer: d
Step-by-step explanation:
Hector made a scale drawing of the front of a
building.
• The front of the actual building is in the
shape of a rectangle with a height of
21 feet and a width of 15 feet.
• The height of the building in Hector's
drawing is 3.5 inches, and the width is
2.5 inches.
What scale factor did Hector use in his scale
drawing?
A. 1 inch : 2 feet
B. 1 inch : 4.3 feet
C.1 inch : 6 feet
D. 1 inch : 8.4 feet
Answers
Option B is correct. I did the test and it shows 100% I hope it helped!
Jenny has $300. She found a bank with an interest rate of 3.8% compounded monthly. How much interest would she earn in one year? (Round to the nearest cent-- 2 decimal places)
Answers
Answer:
311.60
Step-by-step explanation:
4x + 3 = x + 2(x + 7)
step by step
Answers
Answer:
x=11
Step-by-step explanation:
4x + 3 = x+ 2x + 14
4x + 3 = 3 x + 14
4x - 3x = 14 -3
x= 14 - 3
x= 11
Answer:
x=11
Step-by-step explanation:
Distribute :
4x + 3 = x + 2( x+ 7)
4x + 3 = x + 2x + 14
Combine like terms :
4x + 3 = x + 2x + 14
4x + 3 = 3 x+ 14
Subtract 3 from both sides of the equation :
4x + 3 = 3x + 14
4x + 3-3 = 3x + 14 -3
Simplify :
what ever way you know how to subtract the numbers you should get this answer :
4x = 3x + 11
Subtract 3 from both sides of the equation :
4x = 3x + 11
4x - 3x = 3x + 11 - 3x
Simplify :
combine like terms
multiply by 1
combine like terms
x= 11
An arithmetic sequence is represented by the explicit formula A(n) = 2 +(n − 1)(− 5)
What is the recursive formula?
Answers
Answer:
a+(n-1)d please do you get it or
Answer:
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] - 5
Step-by-step explanation:
Given the explicit formula
A(n) = 2 - 5(n - 1)
Compare with the standard form
A(n) = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 2 and d = - 5
A recursive formula allows a term in the sequence to be found by adding d to the previous term.
Then recursive formula is
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] - 5 , with a₁ = 2
Four lines are shown as a possible line of best fit" for the given data points.
Based on the plotted points which line is the BEST fit?
Aline a
B
line b
C
linec
lined
D
Answers
Answer:
line d
Step-by-step explanation:
my brain
hajsuwyiwhsbs
If 5x - 2 = -12. then x =
Answers
Answer:
x = -2
Step-by-step explanation:
First let's solve the given equation.
5x - 2 = -12
Combine the constants by adding 2 to both sides.
5x = -10
Isolate x by dividing both sides by 5.
x = -2
This is your answer.
Check your answer by plugging x = -2 back into the equation.
5x - 2 = -12
5(-2) - 2 = -12
-10 - 2 = -12
-12 = -12
Your answer is correct.
Hope this helps!
Mr. Turner has two Math 2 classes, with one class, he lectured, and the students took notes.
In the other class, the students worked in small groups to solve math problems. After the first
test, Mr. Turner recorded the student grades to determine if his different styles of teaching
might have impacted student learning,
Class 1: 80, 81, 75, 70, 72, 74, 76, 77, 77, 79, 84, 88, 90, 80, 78
Class 2: 70, 90, 88, 89, 86, 86, 82, 77, 79, 84, 84, 86, 87, 88, 88
Answers
Please help me with this!!!
Answers
Answer:
True
they intersect at only one point
hope it will help you
your day will full of happiness
Answer:
i think true
Step-by-step explanation:
corret because vertical Lines intersect at one point after a certain amount of time
receive 5% commission sold for $ 65000 much is my commission
Answers
Answer: $3,250
Step-by-step explanation:
5% is the same as 0.05
$65,000 x 0.05 = $3,250
Mrs. Moore is making packages of art supplies for an art project. Each package contains sheets of white paper and blue paper. There are 84 sheets of blue paper and 96 sheets of white paper available to be used in the packages. Each package has the same number of blue paper. Each package has the same number of white paper. Mrs. Moore makes the maximum number of packages possible. There are no sheets of paper left over. What is the maximum number of packages that can be made and how many sheets of blue paper and white paper are in each package
Answers
Answer:
The maximum number of packages that can be made are 12 packages
The number of sheets of blue paper and white paper per package = 7 and 8 sheets respectively
Step-by-step explanation:
The number of sheets of blue paper available to Mrs. Moore = 84 sheets
The number of sheets of white paper available to Mrs. Moore = 96 sheets
The number of blue paper in each package = The number of white paper in each package
Therefore, the maximum number of packages that can be made is given by the Highest Common Factor, HCF, of 84 and 96 which is found as follows;
The prime factors of 84 = 2² × 3 × 7, from which we have;
Factors of 84 = 4 × 3 × 7 = 12 × 7
The prime factors of 96 = 2⁵ × 3, from which we have;
Factors of 96 = 4 × 8 × 3 = 12 × 8
∴ The HCF of 84 and 96 = 12
The maximum number of packages that can be made = Twelve packages
The number of sheets of blue paper in each package = Seven
The number of sheets of white paper in each package = Eight.
One angle of an isosceles triangle measures 40°. Which other angles could be in that isosceles triangle?
Answers
Answer:
100° and 70°
Step-by-step explanation:
100°, 40°, and 40°
and
40°, 70°, and 70°
Answer:
100° and 70°
Step-by-step explanation:
100°, 40°, and 40°and40°, 70°, and 70°