Answer:
8840
Step-by-step explanation:
10^2=100;
(6.8*100)*(1.3*10)
680*13
8840
Answer:
8.84 × 10³
Step-by-step explanation:
(6.8 × 10²) (1.3 × 10)
(6.8 × 1.3) (10² × 10) = (8.84) (10³)
8.84 × 10³
mrs.shipley ran at a rate of 8.2 miles per hour.how many feet per second is this
Mrs. Shipley moved at a speed of 12.0266 feet per second which was originally expressed in miles per hour.
What does unit conversion mean?The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles.What is feet per second in miles per hour?The miles per hour multiplied by 1.466667 gives the speed in feet per second.
Mrs. Shipley ran at an average speed of 8.2 miles per hour.
These units must be converted into feet/second.
We know that,
1 miles/hour = 1.466667 feet/second
So, 8.2 miles/hour = 8.2 × 1.466667 feet/second
∴ 8.2 miles/hour = 12.0266 feet/second
Therefore, Mrs. Shipley ran at a rate of 12.0266 feet per second, which was originally expressed in miles per hour.
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Plssss help with this question
Answer:
[tex](-5y^4+4y^3)+(3y^2-2y)[/tex]
Graph each equation by using the x and y intercepts
Question 3: 1.5x+3y=9
in a city, building P is 455 feet taller than two times the height of building Q. the height of building P is 879 feet. what is the height of building Q
Answer:
212 ft
Step-by-step explanation:
[tex]455+2Q=879 \\ \\ 2Q=424 \\ \\ Q=212[/tex]
A college student completed some courses worth 3 credits and some courses worth 4 credits. The student earned a total of 65 credits after completing 21 courses
How many 3 credit courses did the student complete?
How many 4 credit courses did the student complete?
Based on the fact that there are courses with 3 credits and 4 credits, with the total that a student can earn being 65 credits, the number of 3 credit courses that the student completed was 19 courses and the number of 4 credit courses was 2 courses.
How to find the number of courses?Assuming that the number of courses worth 3 credits are denoted as x and the number of courses worth 4 credits are denoted by y, the system of equations would be:
3x + 4y = 65
x + y = 21 courses
Using substitution for y gives:
x + y = 21
y = 21 - x
The number of courses with 3 credits is:
3x + 4y = 65
3x + 4(21 - x) = 65
3x + 84 - 4x = 65
84 - 65 = 4x - 3x
1x = 19
x = 19 courses
Number of 4 credit courses is:
= 21 - x
= 21 - 19
= 2 courses
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three more than eight times a number equal to 19
Solve for the indicated variable for each one.
1.) For a:a+r=t
2) For x: x/2-b=s
Answer: 2(s+b)
Step-by-step explanation:
1) a + r = t
a = t - r
2) x/2 - b = s
x/2 = s + b
x = 2(s + b)
x = 2s + 2b
Simplify 5x(- 4y)+ 3x(— Зу
Answer
- 29xy
Step-by-step explanation:
5x(- 4y) = - 20xy
3x(- 3y) = - 9xy
- 20xy + - 9xy = - 29xy
The table shows the allowance balance for the children in the Martinez family.
Question 16
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The table shows the allowance balance for the children in the Martinez family.
Child Allowance Balance ($)
Annemarie ─12.50
Charles ─5.75
Maria ─15.25
Sylvester ─8.00
What is the difference between Maria's allowance balance and Charles' allowance balance? Write your answer as a decimal to the nearest hundredth.
Answer:
if you mean between them both then 9.5
if you mean divide then 2.65217391 or rounded as 2.65
Answer: 9.5/2.56
Step-by-step explanation:
I wasn't sure if you meant all of them or not, sorry.
4+3x<22 find the solution for the inequlity
Answer:x<6
Step-by-step explanation:
Step-by-step explanation:
4+3x<22
3x<22-4
3x<18
3x÷3<18÷3
x<6
The diagram shows the layout of Mandy’s garden. The garden is the shape of combined rectangles.what is the area of the garden
Divide. Express your answer in scientific notation.
7.2x10-4
3x10-3
Help
Answer:
0.24
Step-by-step explanation:
First, you would do 7.2 x 10^-4 which equals 0.00072
Next, 3x10^-3 would equal 0.003
Then , you would divide 0.00072/0.003 = 0.24
PLEASE HELP
Solve negative a minus four sevenths equals two thirds for a.
a equals negative 26 over 21
a equals 26 over 21
a equals negative 2 over 21
a equals 2 over 21
Value of 'a' for the given statement the negative a minus four sevenths equals two thirds for a after solving is equal to negative 26 over 21.
As given in the question,
Given statement :
Negative a minus four sevenths equals two thirds for a
Represent the statement in equation form :
-a -(4 / 7) = ( 2 / 3 )
Solve by adding both the side ( 4 / 7 ) we get,
-a - (4 /7) + (4 /7) = (2/3) +(4/7)
⇒ -a = (2/3) + (4/7)
least common multiple of 3 and 7 is 21.
-a = ( 14 /21) + (12 /21)
⇒ -a = 26 /21
⇒ a = -26/21
Therefore, value of 'a' for the given statement the negative a minus four sevenths equals two thirds for a after solving is equal to negative 26 over 21.
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the expert answer is wrong
The record for the most rolls of wrapping paper sold for the school fundraiser is 593. Let w be the number of rolls of wrapping paper sold.
Which inequality represents the numbers that would beat the school record?
The required inequality would be w > 593 which represents the numbers that beat the school record, where w is the number of rolls of wrapping paper sold.
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
We have been that 593 rolls of wrapping paper set the record for the most rolls ever sold at a school fundraiser.
Let w be the number of rolls of wrapping paper sold.
As per the given condition, the required inequality would be as :
⇒ w > 593
Therefore, the required inequality would be w > 593 which represents the numbers that beat the school record.
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Solve 2x^2 + 31 = 17. The solutions are x= and x=
Answer:
x=±√7
Step-by-step explanation:
2x²+31=17
2x²=31-17
2x²=14
x²=14÷2
x²=7
x=±√7
133g =__oz
What the answer I need help
Answer:
4.69144 oz
Step-by-step explanation:
Can somebody help me with this??? Emma helps her mother walk the dog 2 weeks per month. How many weeks per year does Emma walk the dog?
Answer: 24 weeks
Step-by-step explanation:
There are 12 months in a year
In each of those months, Emma walks the dog for 2 weeks
2 times 12 is 24
so Emma walks the dog 24 weeks per year
A ball thrown horizontally from an apartment balcony hits the ground in 5 seconds. if the horizontal velocity of the ball is doubled, how long will it take to hit the ground? a. 2.5 seconds b. 5.0 seconds c. 7.5 seconds d. 10 seconds e. 12 seconds
Still 5 seconds.
(Assuming the Earth around that building is flat.
Write an equation that represents the line.
Use exact numbers.
PLEASE HELP
Find the converse and determine if it is true or false.
Statement: Obtuse angles are not right angles.
Response: Converse: If an angle is not a right angle, then it is obtuse. True.
Answer:
Obtuse angle is not a right angle
Obtuse angle are angles between 90° and 180°
How many miles would it take for an airplane to travel from Portugal to the United States?
Answer:
The total flight duration from the United States to Portugal is 9 hours and 41 minutes.
Step-by-step explanation:
The distance between Portugal and United States is 4680 miles. The fastest way to get from Portugal to the United States is to fly. Taking this option will cost €220 - €1500 and takes 10h 29m. The distance between Portugal and United States is 4680 miles.
A car rental advertised a car for $27.95 per day and $0.26 per mile. If someone rents the car for 4 days how many whole miles can he drive in a $150 budget
(Round down to the nearest whole mile)
The number of miles he/she can drive with a budget of 150 dollars is 469 miles.
How to find the number of miles he can drive?The car rental advertised a car for $27.95 per day and $0.26 per mile.
If someone rents the car for 4 days and he has a budget of 150 dollars, the number of miles he can drive can be calculated as follows:
The equation used to represent the situation is as follows:
let
x = number of miles drove
Therefore,
150 = 27.95 + 0.26x
subtract 27.95 from both sides of the equation
150 - 27.95 = 27.95 - 27.95 + 0.26x
0.26x = 122.05
divide both sides by 0.26
x = 122.05 / 0.26
x = 469.423076923
x = 469 miles
Therefore, the number of miles he can drive is 469 miles.
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2) I read 120 pages yesterday and 132 pages today.
85 pages were left to read.
O How many pages did I read yesterday and today?
Answer:
A total of 252 pages
Step-by-step explanation:
In other words, 120 pages of a book were read yesterday and 132 pages of a book were read today. There are still 85 pages left to read in order to finish the book.
This word problem may seem tricky because it throws in the “85 pages left to read”, but you don’t have to pay attention to that because all the actual question is asking is for you to add the number of pages you already read.
To figure out how many pages were read in total, you must add.
So, 120 + 132 = 252
To do this addition problem mentally:
1. Add the 100s place, so 100 + 100 = 200
2. Add the 10s place, so 20 + 30 = 50
3. Add the 1s place, so 0 + 2 = 2
4. Add up all the sums that you got, so 200 + 50 + 2 = 252
You read 120 pages yesterday and 132 pages today. The values are correct.
What is an expression?An expression is a grouping of one or more mathematical or logical operators, operands (values, variables, or other expressions), and brackets in mathematics and computer programming that denote a computation that can be evaluated to generate a value.
Let x be the number of pages that you read yesterday, and let y be the number of pages that you read today.
From the problem, we know that:
x + y = 120 + 132 (the total number of pages you read over the two days)
x + y + 85 = total number of pages in the book
We can simplify the second equation by combining like terms:
x + y + 85 = total number of pages in the book
x + y = total number of pages in the book - 85
We can substitute the first equation into the second equation to eliminate x + y:
120 + 132 = total number of pages in the book - 85
252 = total number of pages in the book - 85
total number of pages in the book = 252 + 85 = 337
Now we can substitute this value for the total number of pages in the book into the first equation to solve for x and y:
x + y = 120 + 132
x + y = 252
We can solve for one variable in terms of the other by subtracting y from both sides:
x = 252 - y
Now we can substitute this expression for x into the equation x + y = 252 and solve for y:
252 - y + y = 252
y = 132
So you read 120 pages yesterday and 132 pages today.
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Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
The members of a cooking club are making cakes, which they will sell at a street fair for $8 apiece. It cost $14 for a booth at the fair, and the ingredients for each cake cost $1. At some point, the club members will sell enough cakes so that their sales cover their expenditures. How many cakes will they have sold? How much will the sales and expenditures be?
Once the members of the club have sold
cakes, they will break even, with sales and expenditures of $
.
Answer:
Oggy Oggy oggy
Step-by-step explanation:
boogy boogy
Help with this problem please :)
The value of the unknown angle is as follows:
m∠BGF = 80 degreesHow to find angles?An angle bisector or the bisector of an angle is a ray that divides an angle into two equal parts
Therefore, CH bisects ∠GCD.
Therefore, it divide ∠GCD into two equal halves.
GC bisect ∠BGD.
Therefore, it divides ∠BGD into two equal halves.
Hence,
m∠BGC = m∠CGF
Therefore,
m∠BGC = 7x - 2
m∠CGF = 8x - 8
7x - 2 = 8x - 8
7x - 8x = -8 + 2
-x = -6
x = 6
Therefore,
m∠BGF = 7x -2 + 8x - 8
m∠BGF = 15x - 10
m∠BGF = 15(6) - 10
m∠BGF = 90 - 10
Therefore,
m∠BGF = 80 degrees
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Please help quick!!!
Answer:
D
Step-by-step explanation:
-6 times 3 is obviously -18 and if you type in -6 times -2/3 on a caculator it gives you 4 and its positive because when you times two negatives you get a positive
lines k and e are parallel and the measure of angle ABC is 19 degress
Lines k and e are parallel, then the measure of angles are,
∠ABC = 19° and ∠ BCD = 19°
∠ABC = ∠ BCD = 19°
Based on the given conditions,
Lines k and e are parallel
The measure of angle ABC is = 19 degrees
We can see the Image,
∠ABC and ∠ BCD are equal,
Because k and e are parallel
So,
We can write,
∠ABC = ∠ BCD
Then Given condition is,
Angle ABC is 19 degrees
We can write,
∠ABC = 19°
So, ∠ABC = ∠ BCD
Then,
∠ BCD = 19°
Therefore,
Lines k and e are parallel, then the ∠ABC = 19° and ∠ BCD = 19°
∠ABC = ∠ BCD = 19°
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need help on this, thanks
Answer:
m<1 = 159˚
m<2 = 21˚
m<4 = 21˚
Step-by-step explanation:
Angle one is a vertical angle to angle 3 so they have the same angle. Angle 2 and 4 are adjacent angles to angle 3, so they are supplementary angles with angle 3, which 180-159 = 21˚.
today, the waves are crashing onto the beach every 4.8 seconds. the times from when a person arrives at the shoreline until a crashing wave is observed follows a uniform distribution from 0 to 4.8 seconds. round to 4 decimal places where possible.
A person will wait at least 1.8720 seconds before the wave crashes when the waves are crashing onto the beach every 4.8 second
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The probability that we find a value X lower than x is given by the following formula.
[tex]P(X\leq x)[/tex] = x-a / b-a
Uniform distribution from 0 to 4.8 seconds.
This means that a=0 , b=4.8
61% of the time a person will wait at least how long before the wave crashes in?
This is the 100 - 61 = 39% percentile, which is x for which [tex]P( X\leq x)= 0.39[/tex] . So
[tex]P(X\leq x)= \frac{x-a}{b-a}[/tex]
x= 1.8720
the time a person will wait at least 1.8720 seconds before the wave crashes in.
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what is the domain for f: y=4 x^(2)+12 x-5
The domain of the function f(x) = 4 · x² + 12 · x - 5 is the set of all real numbers.
How to determine the domain of a polynomic function
Functions are characterized by three features:
Domain - The input of all values of x such that the function f(x) exists.Range - The output of all values of y associated with the function f(x).Relations - Relations between the input and output sets.In this problem we need to find the set of all x - values of the polynomic function described in the statement. According to function theory, polynomials are continuous and their domain are always the set of all real numbers.
The domain of the polynomic function is the set of all real numbers.
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