Answer:
79.2 km/hour
Step-by-step explanation:
1 m/sec= 3.6 km/hour 22m/sec= ? so just multiply 22 m/sec by 3.6 km/hour then the answer will be :- 79.2 km/hour
Please help with systems of equations need super urgent
*Check the pic*
Answer:
y = ±5
x = ±6
Step-by-step explanation:
Here we have the system:
x^2 + y^2 = 61
x^2 - y^2 = 11
Notice that we have both variables squared, then we can define:
x^2 = X
y^2 = Y
And write our system as:
X + Y = 61
X - Y = 11
To solve this, the first step is to isolate one of the variables in one of the equations, i will isolate X in the second equation:
X = 11 + Y
Now we can replace this in the other equation to get:
(11 + Y) + Y = 61
Now we can solve this for Y
11 + 2*Y = 61
2*Y = 61 - 11 = 50
Y = 50/2 = 25
Y = 25
And remember that Y = y^2
then:
y^2 = 25
y = √25 = ±5
And using the equation: X = 11 + Y
X = 11 + 25 = 36
X = x^2 = √36 = ±6
The store brought a pair of shoes for 40$ and sold it for 50$. What percentage was the markup?
Answer:
20%
Step-by-step explanation:
You would do 40/50 and then 40/50 is also 80/100. Then you'd take the remainder and that'd be the mark up price.
There are 21 Year 8 pupils in a music club, out of a total of 37 pupils.
Write this proportion as a percentage.
Give your answer correct to 1 decimal place when appropriate.
Answer:
.567
Step-by-step explanation:
The original ratio is 21:37
Any ratio is a fraction
A fraction is a division problem
Rewrite the ratio as a fraction : 21:31---> 21/31
Divide 21 by 31 and you get .567
please I need help ASAP
The population of Dawn land is changing exponentially. This change is modeled by the function f(x) = 60,000(1.01)x . Interpret the function to describe how the population changes. Explain how you know.
Answer:
The function has an initial population size of 60,000 which increase at a rate of 1%
Step-by-step explanation:
Given the expression :
f(x) = 60,000(1.01)^x
Since 1.01 > 1 (exponential
The general form of an Exponential growth function.
y = p(1 + r)^x
p = 60000 = initial population
1 + r = 1.01 ; where r = growth rate
r = 1.01 - 1 ; r = 0.01 =
r = 0.01 * 100% = 1% growth rate
Find the volume of the box. HELP DUE AT 5:00PM
Answer:
6.3
Step-by-step explanation:
Volume formula:
V = whl
V = 3.5(0.8)(2.25)
V = 63/10
Answer could be:
63/10[tex]6\frac{3}{10}[/tex] 6.3Triangle PQR is reflected across a line, P = (4,–5), and P’ = (–4, –5). What is the line of reflection?
the x-axis
the y-axis
the line y = x
the line y = –x
Answer:
it is b
Step-by-step explanation:
edge2021
(WILL GIVE BRAINLIEST PLEASE HELP I HAVE A DBA AND THESE ARE THE QUESTIONS)
Do you know what an arithmetic sequence is? An arithmetic
series? What is the difference between the two?
Do you know how to use the formulas?
Do you know what an geometric sequence is? An geometric
series? What is the difference between the two?
Do you know to use the formulas?
What is the difference between arithmetic and geometric?
Do you know how to find the average rate of change?
What is sigma notation? What are the parts?
What does it mean for a graph to be discrete? Continuous?
Answer:
down here. I dont expect you to copy paste
Step-by-step explanation:
Arithmetic sequence: An arithmetic sequence is a sequence where each term increases by adding/subtracting some constant k.
Arithmetic series : An arithmetic series is the sum of a sequence in which each term is computed from the previous one by adding (or subtracting) a constant
Difference: A sequence is defined as an arrangement of numbers in a particular order. On the other hand, a series is defined as the sum of the elements of a sequence.
How to use them : maybe
Geometric Sequence : A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.
Geometric series : In mathematics, a geometric series is the sum of an infinite number of terms that have a constant ratio between successive terms.
Difference: A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.In mathematics, a geometric series is the sum of an infinite number of terms that have a constant ratio between successive terms.
How to use: maybe
Arithmetic and geometric difference: The main difference between arithmetic and geometric sequence is that arithmetic sequence is a sequence where the difference between two consecutive terms is constant while a geometric sequence is a sequence where the ratio between two consecutive terms is constant.
Average rate of change : To find the average rate of change, we divide the change in the output value by the change in the input value.
Sigma notation :Often mathematical formulae require the addition of many variables Summation or sigma notation is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable.
Graph: A continuous function allows the x-values to be ANY points in the interval, including fractions, decimals, and irrational values. A discrete function allows the x-values to be only certain points in the interval, usually only integers or whole numbers.
what is the effect of the graph of the function f(x)=x^2 when f(x) is changed to f(x+8)?
Answer:
Step-by-step explanation:
graph is translated left by 8 units
Which graph represents y as x as a function of x
Answer: A
because yesterday I had a test and I got it right.
Step-by-step explanation:
How to find a tangent ratio
Answer:
The tangent ratio is the value received when the length of the side opposite of angle theta is divided by the length of the side adjacent to angle theta. It is very commonly abbreviated as tan.
please help!!!! find the value of x
Answer:
The answer is x+2=7,
Step-by-step explanation:
because x is a variable
19u=2,527. Solve the equation
Answer:
=133
Step-by-step explanation:
1. Divide both sides of the equation by the same term
19=2527
2. Simplify
If you divide numbers you will get:
=133
And that's the answer
I hope this helps :)
based on the graph how many pieces of popcorn were eaten per minute in the first 4 minutes
Answer:
50
Step-by-step explanation:
intersection of 4 mins hits 50
Please help me I need to get this turned in now!!
Answer:
(25. 12) unitStep-by-step explanation:
The radius of the circle is ( r = 4) so
[tex]p = 2\pi \times r \\ p = 2(3.14)(4) \\ p = 25.12[/tex]
Don leaves home at 2pm. He drives 45 miles from home in the first hour. He stops for 90 minutes. He then drives home at an average speed of 15mph. Draw a distance-time graph to show Don's journey.
Brainliest if you want :)
Answer:
3pm-5pm-7.30pm
Step-by-step explanation:
pls help me with this question. will give brainliest.
q)Calculate the length of the side marked x in each of the following.
Answer:
points
Step-by-step explanation:
Someone help and please make sure the answer is right :)
What is the first common factor of 6 and 8.25?
Answer:
omo
___
Step-by-step explanation:
find the total surface area, leave your terms in pi.
Answer:
75.39822
Step-by-step explanation:
welppppppppppppppppppppppppppppppppppppppp
Answer:
They are all acute triangles or iscoles triangles
Step-by-step explanation:
Veronikas five test scores are 59 80 95 and 93 if the outlier of 59 is removed what is the mean absolute deviation of the remaining four test scores?
Complete Question
Veronikas four test scores are 59, 80, 95, 88 and 93 if the outlier of 59 is removed what is the mean absolute deviation of the remaining four test scores?
Answer:
5
Step-by-step explanation:
We have the four test scores
80, 95, 88 and 93
Step 1
We find the mean of the 4 test scores
= 80 + 95 + 88 + 93/4
= 356 / 4
89
Step 2
The formula for Mean Absolute Deviation =
Summation( x - Mean)/n
Hence,
|(80 - 89 )+( 95 - 89) + (88 - 89) + (93 - 89)|/5
= 9 + 6 +1 + 4/4
= 20/4
= 5
what is 420 X 420 i'll give brainliest
Answer:
176,400
Step-by-step explanation:
Answer:
It equals 176400
Whats 2 * 2 * 3 * 5 * 13 * 89
Step-by-step explanation:
80% of c is 30. what is c?
Answer:37.5 is C
Step-by-step explanation:
You get this by using Butterfly method 80/100 = 30/x
Which term best describes the sequence 1,5,9,13,17,...?
a.Geometric
b.Arithmetic
c.Quadratic
d.Neither
Answer:
Arithmetic sequence
Step-by-step explanation:
Each term is the previous term +4 so it is an arithmetic sequence
solve this pls thank you
Answer:21
Step-by-step explanation:9+10=21
Answer:
ok nlol how u been
Step-by-step explanation:
Formula is S=2nr squared
If r=7 and n=3.14,calculate S rounded off to two decimal places.
Answer:
307.72
Step-by-step explanation:
S=2nr²
S=2×3.14×7²
S=307.72
What is 5 to the 9th power over 5 to the 3rd power?
Answer:
15,625
Step-by-step explanation:
Answer:
15625
Step-by-step explanation:
Which trend line properly describes the data relationship in the scatterplot?
Answer:
The correct answer is B :)))
Step-by-step explanation:
2021
Definition - Trend line is referred to as a line of the best fit, which lines that are used to represent the behavior of a set of data to determine if in a certain pattern. Thus, A trend line is an analytical tool used most often in conjunction with a scatter plot to see if there is a relationship between two variables.
The main purposes of a trend line are:Predicting unknown or future data points are: This graph is shown to temperatures for ten days. Also, we can be attempting to predict the temperature on the 11th day based on behalf of this graph, then we can estimate would be 70.5 degrees. It also mentions a graph below. Then, If a set of points exhibits a positive trend, Then Determine a negative trend or no trend at all. Looking at the red trend lines in the examples which are mentioned below with sets of data.
Learn more about
https://brainly.com/question/14327659
x+2y=2
3x+4y=0
solve by graphing
Step-by-step explanation:
I think this is helpful so you wanted by graphing and this is what I saw I hope it is helpful and good luck