Answers
Answer:
n = ±7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving quadraticsStep-by-step explanation:
Step 1: Define equation
-3n² + 147 = 0
Step 2: Solve for n
Subtract 147 on both sides: -3n² = -147Divide -3 on both sides: n² = 49Square root both sides: n = ±7Related Questions
It takes 115 pounds of seed to completely plant a 12-acre field. How many pounds of seed are needed per acre?
Answers
Answer: 9.5
Step-by-step explanation:
You need to do 115/12 and the answer is 9.5 so if that is not an answer it will be10 rounded up
i need this asap !
write the equation of a line perpendicular to y=-2x+8 that passes through the point (-4,1)
Answers
Answer:
y = 1/2x + 3.
Step-by-step explanation:
y = -2x + 8
Gradient = -2
Gradient of the line passing through point (-4,1)
is given as 1/2. i.e it is perpendicular to y = -2x + 8
Its equation is given as:
y - y1 = m(x - x1)
y - 1 = 1/2(x -(-4))
y - 1 = 1/2(x + 4)
y - 1 = 1/2x + 2
y = 1/2x + 3.
Chinisa is swinging on a swing. Her maximum height above the ground is 7 feet and her minimum height above the ground is 1 foot.
Select all of the equations that could model Chinisa's height above the ground (y) after x seconds of swinging assuming that the x-axis represents the ground.
A.
y = 6 sin(2x) + 4
B.
y = 6 cos(2x) + 4
C.
y = 6 tan(2x) + 4
D.
y = 3 sin(2x) + 4
E.
y = 3 cos(2x) + 4
F.
y = 3 tan(2x) + 4
Answers
I need help with this question right now please and thank you!
Answers
|10 7/9|,|-9 9/8|, |-10 4/9|, |-10 5/9|, |-10 8/9|
amy jogs 1/3 of a mile in 1/15 of an hour while john takes 1/30 of an hour to jog 1/5 of a mile if they continued at this who would jog the farther in one hour and by how much
Answers
Answer:
John would jog 1 more mile than any
Step-by-step explanation:
If you solve for the rate of which they both jog you would know that John jogs 6 miles an hour and Amy would jog at a rate of 5 miles an hour
HELP ME PLEASE! how do you write 610 as a scientific notation ??
Answers
If you have been looking for 610 in exponential form, 610 as a power of 10, or what is 610 in scientific notation, then you are right here, too.
In this post you can find everything about the scientific notation of 610, including the normalized form and the number written in e-notation.
Read on to learn everything about the scientific notation of six hundred and ten.
To answer the question what is 610 in scientific notation let’s recall how to convert 610 to scientific notation as detailed on our home page.
When you split the number 610 into a coefficient and a power of 10 you do get 610 in exponential form, but there is an indefinite number of possibilities.
As you probably want 610 in normalized scientific notation, the coefficient or significand of 610 in scientific notation must be in the interval [1,10[.
As there are many ways to express 610 in scientific notation, in this post we mean 610 in normalized scientific notation, unless stated otherwise. Therefore:
610 in scientific notation = 6.1 × 102.
This can also be expressed as 6.1 × 10^2, using the caret symbol, or as 6.1e+2, which is called 610 in e-notation, further discussed in the section ahead.
Regarding our converter:
Our tool changes any decimal number including 610 to standard index form. If your press the swap button, then 610 is changed back to decimal form.
Our tool displays converted numbers in a special form of scientific notation, which means that the superscripted part of × 102 is denoted by ^2.
I hope and help you is the answer and a little explanation!!
Marcus can read 126 pages in one hour. How many pages can he read in 15 minutes?
Answers
Answer:
31.5 or 32
Step-by-step explanation:
Divide 126 by 4
All you do is 126 divided by 4
-30<x/-4 answer must be simplified
Answers
Answer:
x<120
Step-by-step explanation:
-30<x/-4
In order to simplify this, we must isolate the x value by multiplying both sides by -4
Since we are dealing with inequalities and we are multiplying by a negative number, we have to switch the sign (<,>)
-30(-4)>x
x<120
Maddox is stacking cans to make a display at the grocery store. The bottom row of the stack has 20 cans. Each row has 4 fewer cans than the row below it until there are no cans left.
How many rows of cans are in Maddox’s stack
Answers
Answer: 5
Step-by-step explanation:
Solve
2x- 4 = -3 +3
Answers
Answer:
x=2
Step-by-step explanation:
Thanks guys for the help! heres another question
Answers
Answer:
Step-by-step explanation:
Putting values in the equation
1/3 / 1/2 = 0.166
Answer:
lol i already answered this its 2/3
Step-by-step explanation:
im not typing it again u can look at ur other question tho i put it there lol
Need Help ASAP
Formula 1 can be written alternatively as formula 2. Use algebra to show your steps how formula 1 can be manipulated to create formula 2.
Formula 1:
[tex]f(n)=\left\\ ({\sqrt[{12}]{2}}\,\right)^{n-49}\times 440\,{\text{Hz}}\,}[/tex]
Formula 2:
[tex]f(n) = 440 (2)^{\frac{n-49}{12} }[/tex]
Answers
Answer:
Steps are shown
Step-by-step explanation:
Exponent Rules
We need to recall this fundamental rule for exponents:
[tex]\displaystyle \sqrt[n]{a^m}=a^{m/n}[/tex]
We are given the expression:
[tex]f(n)=\left ({\sqrt[{12}]{2}}\,\right)^{n-49}\times 440\,{\text{Hz}}[/tex]
We'll use algebra and the above rule to manipulate the expression.
First, get rid of the unit Hz and move the coefficient 440 to the left:
[tex]f(n)=440\left ({\sqrt[{12}]{2}}\,\right)^{n-49}[/tex]
Now we convert the radical into an exponent form:
[tex]\displaystyle \left ({\sqrt[{12}]{2}}\,\right)^{n-49}=(2)^{\frac{n-49}{12}}[/tex]
Substitute:
[tex]f(n)=440\left ({\sqrt[{12}]{2}}\,\right)^{n-49}=440~(2)^{\frac{n-49}{12}}[/tex]
This is the very same expression in formula 2, as required.
all poets are loners. All loners are taxi drivers. therefore, all poets are taxi drivers
is this valid or invalid?
Answers
Answer:valid
Step-by-step explanation:
What is the value of the expression below when c=5 and d=4?
Answers
Answer:
138.....................
Answer:
888
Step-by-step explanation:
C equals 5 so u do 6 times 5. Then you have to do that by the exponent of 2 which equals 900. Because d equals 4 u do 5 times 4 which equals 20. So 900 minus 20 equals 880 plus 8 equals 888
how to find the y-intercept from a table AND from a graph.
Answers
Answer:
When Finding the Y-Intercept from a Graph and Table, you are searching for the point of intersection between the equation and the y-axis. When finding the Y-Intercept from a Graph, you should find where the line from the equation crosses the y-axis. The point where the equation crosses the y-axis is the Y-Intercept.
Step-by-step explanation:
Да се намери обемът на правилна четириъгълна призма с лице на околната повърхнина 1600см² и обиколка на основата 12 см
Answers
Answer:
се намери обемът на правилна четириъгълна призма с лице на околната повърхнина 1600см² и обиколка на основата 12 см
The tail of a kite is 1.5 feet plus twice the length of the kite. Together, the kite and tail are 15.5 ft long. Find the length of the tail.
What is the length of the kite?
7 ft
10 8/15 ft
5 2/3 ft
4 2/3 ft
Answers
Answer:
c i think your answer is c
Step-by-step explanation:
Elena went to a store where you can scoop your own popcorn and buy as much as you want. She bought 10 ounces of spicy popcorn for $2.50. How much popcorn can you buy per dollar? Do not include units (oz) in your answer.
Answers
Answer:
4
Step-by-step explanation:
$2.50 → 10 ounces
$1.00 → (10/2.50 x 1.00) ounces = 4 ounces
NEED HELP ASAP!!!
Which function does this graph represent?
A. F(x)= 3 (x+1)^2+2
B. F(x)= -3 (x+1)^2+2
C. F(x)= -3 (x+1)^2+2
D. F(x)= 3 (x-1)^2+2
Answers
I’m kinda confused of where I out the yes
Answers
Answer:
put the yes in the second box, fourth box, and fifth box.
Step-by-step explanation:
trust me, your welcome
the length of the Triangle are 5 inches amd 8 inches. which of the following lengths could be the length of the third side of triangle? select all apply
a = 5 inches
B= 13 inches
C = 7 inches
D = 4 inches
Answers
Answer:
A, C, DStep-by-step explanation:
Triangle inequality theorem states than the sum of any two sides must be greater than the third sideA = 5 inches
CorrectB = 13 inches
Incorrect as 5 + 8 = 13C = 7 inches
CorrectD = 4 inches
CorrectWrite the equation of the line with a
slope of -2 and passes through (4, -1).
Answers
Answer:
Step-by-step explanation:
y=mx+b
y= -2x + 3[tex]\frac{1}{2}[/tex]
hope this helped :)
according to exponent rules, when we multiply like bases, we ______ the exponents
Answers
Example: 4x^2(5x^2)= 20x^4
Enter the number in standard notation.
7.037 x 10^9 =
Answers
Answer:
7,037,000,000
Step-by-step explanation:
Move the decimal to the right 9 times
70.37 1
703.7 2
7,037.0 3
70,370.0 4
703,700.0 5
7,037,000.0 6
70,370,000.0 7
703,700,000.0 8
7,037,000,000 9
Bill has a large collection of paperback books. He decided to donate 1/3 of them to his local library. If he had 126 to start with, how many does he have left?
Answers
Answer:
42
Step-by-step explanation:
A market sells blueberries for $3 per pint. The first day, the market sold a total of $35 worth of blueberries. The second day, the market sold a total of $47 worth of blueberries. And the third day, the market sold a total of $57 worth of blueberries. Estimate how many pints the market sold over the three days.
Answers
Answer:Around 50 pints
Step-by-step explanation:
$35=$40
$47=$50
$57=$60
$40+$50+$60=$150/3=50
Gavin has 50 tokens in KG use the weather roller coaster three times every hour. Gibson has 12 tokens And fines two more tokens on the ground each hour. How long until they have the same amount number of tokens
Answers
Answer:
They have the same amount of tokens after t = 7.6 hours
Step-by-step explanation:
Since Gavin initially has 50 token and rides the roller coaster three times per hour, he uses 3 token per hour. So, the number of token he losses after t hours is 3 token per hour × t hours = 3t. Thus, the number of tokens left after t hours is T = 50 - 3t
Since Gibson initially has 12 tokens and finds two tokens on the ground per hour, he gains 2 tokens per hour. So, the number of token he gains after t hours is 2 token per hour × t hours = 2t. Thus, the number of tokens he has after t hours is T' = 12 + 2t
To calculate the time t when they will have the same tokens, T must be equal to T', that is T = T'.
So, 50 - 3t = 12 + 2t
collecting like terms, we have
50 - 12 = 3t + 2t
38 = 5t
dividing both sides by 5, we have
t = 38/5
t = 7.6 hours
So, they have the same amount of tokens after t = 7.6 hours
How do I solve this equation?
Answers
Answer:
X = 4 X = -6
Step-by-step explanation:
X + 1 = 5 X + 1 = -5
X = 5 - 1 X = -5 -1
X = 4 X = -6
Answer:
Step-by-step explanation:
What absolute values of x will fit.
l4+1l=5
l -6+1l=5
Someone please answer! 8th grade math question.
Answers
Answer: there is 3 terms
Step-by-step explanation: each term is separated by a sybol (addition, substation, multiplication, etc).
what is the experimental probability of rolling a 3 or 4?
Answers
If it's 3 or 4 the probability is:
2/6 or 1/3
We call the outcomes in an event its "favorable outcomes". If a die is rolled once, determine the probability of rolling a 4: Rolling a 4 is an event with 1 favorable outcome (a roll of 4) and the total number of possible outcomes is 6 (a roll of 1, 2, 3, 4, 5, or 6). Thus, the probability of rolling a 4 is .