Answer:
She is correct because 30 percent of 30 is 9 or in other words if you multiply 30 by 30 percent you get 9.
Step-by-step explanation:
Answer:
Yes she is correct cause 30 times 30 percent is 9
Step-by-step explanation:
Find the regression equation, letting the first variable be the predictor (x) variable. Find the best predicted Nobel Laureate rate for a country that has 78.8 Internet users per 100 people. How does it compare to the country's actual Nobel Laureate rate of 2 per 10 million people
The table is missing, so i have attached it.
Answer:
Regression equation is;
y = 0.2028x - 8.443
The predicted value is not at all close to the actual novel rate
Step-by-step explanation:
The internet users will be the x-values while the novel laureates will be the y-values.
Thus, sum of x values is;
Σx = 79.5 + 79.6 + 56.8 + 67.6 + 77.9 + 38.3 = 399.7
Sum of y values is;
Σy = 5.5 + 9 + 3.3 + 1.7 + 10.8 + 0.1
Σy = 30.4
Σx² = 79.5² + 79.6² + 56.8² + 67.6² + 77.9² + 38.3²
Σx² = 27987.71
Σy² = 5.5² + 9² + 3.3² + 1.7² + 10.8² + 0.1²
Σy² = 241.68
Σxy = (79.5 × 5.5) + (79.6 × 9) + (56.8 × 3.3) + (67.6 × 1.7) + (77.9 × 10.8) + (38.3 × 0.1)
Σxy = 2301.16
The regression line will be;
y = b1(x) + b0
b1 is expressed as;
b1 = [nΣxy - (Σx • Σy)]/[nΣx² - (Σx)²]
Where n is number of given data which is n = 6.
Thus;
b1 = [(6 × 2301.16) - (399.7 × 30.4)]/[(6 × 27987.71) - (399.7)²]
b1 = 1656.08/8166.17
b1 = 0.2028
b0 is expressed as;
b0 = [(Σy • Σx²) - (Σx • Σxy)]/[nΣx² - (Σx)²]
b0 = [(30.4 × 27987.71) - (399.7 × 2301.16)]/[(6 × 27987.71) - (399.7)²]
b0 = -68947.268/8166.17
b0 = -8.443
Thus, regression equation is;
y = 0.2028x + (-8.443)
y = 0.2028x - 8.443
Best predicted value is given as;
y¯ = (Σy)/n
y¯ = 30.4/6
y¯ = 5.067 per 10 million people.
The predicted value is far greater than the actual value of 2 per 10 million people.
Thus, we can say that the predicted value is nowhere close to the actual value
pls answer pls.mill mark brainliest
Answer:
x^10
Step-by-step explanation:
Standard form of a line that has a slope of -1 and passes through (-5,-1)
Step-by-step explanation:
y + 1 = -(x+5)
y + 1 = -x - 5
y = -x - 6
x + y = -6
PLEASE HELP IT'S ON A TEST!
What is an equation of the line that passes through the point (2, 4) and is perpendicular to the line whose equation is y = 2x + 1?
Answer:
y=-1x+6
Step-by-step explanation:
desmos
Monica is a lawyer who earns $8.322.65 every month. She spends $830.98 on rent, $210.36 on food, and $120.45 on gas every month. After these expenses, she has left from her earnings.
What is an equation of the line that passes through the points (-5, 4) and (5, -8)?
Answer:
Y= -1.2x-2
Step-by-step explanation:
Use elimination to solve the system.
5x - 2y - 39 = 0
2x + 5y - 33 = 0
The solution set is { }
(Simplify your answer. Type an ordered pair.)
Answer:
the answer to your question is (9,3)
2/3 times 4/7 Plz thx
Answer:
8/21
Brainliest? :)
Step-by-step explanation:
Louis's age is three years more than twice the age of Sanchez. The sum of their ages is 39. How old are Sanchez and Louis? 3 +2s+s =39
Answer:
According to your formula, she's 12
Step-by-step explanation:
Double the difference of a number n and 3 is -10. Which equation models this "number riddle" correctly?
A. 2 - n - 3 = -10
B. 2(3 - n) = -10
C. 2 (-10) = 3
D. 2(n - 3) = -10
the difference between a two-digit number and that number reversed is 18. What could that number be. List all possibility's.
9514 1404 393
Answer:
20, 31, 42, 53, 64, 75, 86, 97
Step-by-step explanation:
The difference of 18 means the difference of digits is 18/9 = 2. Since the number you seek is the larger number, the 10s digit will be 2 more than the 1s digit. Possible numbers are ...
20, 31, 42, 53, 64, 75, 86, 97
_____
If t and o are the tens and ones digits respectively, the relation you seek is ...
(10t +o) -(10o +t) = 18
9(t -o) = 18
t - o = 2 . . . . as above
Since both t and o must be single digits, the minimum will be t=2, o=0, and the maximum will be t=9, o=7.
Answer:
10a+b=10b+a-18
9a+9b = -18
9(a+b) = -18
a+b = 18/9
a + b =2
Step-by-step explanation:
Which algebraic expression represents the phrase “seven more than half of a number”?
7 minus one-half x
Negative 7 + one-half x
One-half x + 7
Negative one-half x minus 7
Answer:
C: 1/2x +7
Step-by-step explanation:
The altitude of a tree affects the rate at which the tree grows. G(A),models the growth rate (in millimeters per year) of a certain kind of tree at an altitude A (in kilometers above sea level). Match each statement with the feature of the graph that most closely corresponds to it.
Answer:
y-intercept: at sea level, the tree grows by 1.4 millimetres each year, Relative minimum or maximum: the fastest possible growth rate is 2.6 millimetres per year, Increasing or decreasing interval: as the altitude surpasses 7 kilometres above the sea level, the growth rate of the tree declines
Step-by-step explanation:
°ω°
Help me with the top please
Answer:
Step-by-step explanation:
first option
Answer:
where you can define or adjust what you share and how your account is handled!
5/3 rewrite fraction with a denominator of 12
Answer: 20/12
Step-by-step explanation: In order to get a 12 in the denominator
of 5/3, we multiply top and bottom of 5/3 by 4 to get 20/12.
So 20/12 is an equivalent fraction.
i need bro with this problem
Answer:
what is the question ????
Suppose a rope is nailed to a pole 35 meters above the ground and extended away from the base of the pole. The distance from the base of the pole to the end of the rope is 15 meters. What is the angle made by the rope and the ground?
A. 21.2∘
B. 66.8∘
C. 25.4∘
D. 64.6∘
Answer:
[tex]B. \: \boxed{66.8}[/tex]
Step-by-step explanation:
[tex]to \: solve \: this \: little \: poblem : we \:apply \: the \: pythagrean \: rule \to \\ \boxed{SOH} \boxed{CAH} \boxed{TOA} \to \\ we \: are \: been \: given : \to \\ the \: \boxed{opp }\: of \: the \: required \: angle \: = 35. \\ the \: \boxed{adj }\: of \: the \: required \: angle \: = 15. \\ now \: lets \: apply \: \boxed{TOA}\to \: \tan( \theta) = \frac{opp}{adj} \to\\ \tan( \theta) = \frac{opp}{adj} = \frac{35}{15} = 2.3333333333 \\ \theta = \tan {}^{ - 1} (2.3333333333) \\ \boxed{\theta = 66.80}[/tex]
♨Rage♨
PLS HELP I AM BEING TIMEDD
ANSWER:
ANSWER:
Answer:
Answer:
Answer:
write the expression n n n n n n using an exponent. Name the base and the exponent.
Answer:
n⁶
Step-by-step explanation:
Base= n
exponent=⁶
PLEASE PLEASE PLEASE HELP ME!!!!!!!!!!!!!
Answer:
c
Step-by-step explanation:
the graph has a y intercept of (0, -4) and a slope of 3
the equation is y = 3x - 4
Hi :) could I have some help?
Answer:
1) -6 2/3
2) \sqrt{36} (square root of 36)
3) 6.4
4) 71/11
Step-by-step explanation:
put them all as a decimal, it might make it easier
Find the value of x and y
Answer:
I found it hard to explain through text so the answer and explanation is there in the picture given above.
don't mind my handwriting....
I was writing fast....
Step-by-step explanation:
i hope this helps...
please can I have brainliest?
it would be really nice if I got one...
have a great day ahead :)
Solve for A please :)
Answer:
a = 54 deg
Step-by-step explanation:
Recall that for a triangle, any exterior angle equals the sum of its two remote interior angles (see attached for reference).
In our case the exterior angle is 2a and the remote interior angles are (a+10) and 44
hence,
2a = (a+10) + 44
2a = a + 10 + 44
2a = a + 54 (subtract a from both sides)
2a - a = 54
a = 54 deg
What is a term I’m doing this math
Answer:
A term is one part of an equation in math, for example 9x+2x=3. a term would be 9x
Step-by-step explanation:
Type an equation that can be used to answer the question in
the first box.
Then type the solution to the equation in the second box.
You are reading a book that has 150 pages. You have
already finished 60 pages and you are reading 3 pages per
day.
How many days will it take for you to finish the book?
Use d as the variable.
Answer:
3d + 60 = 15030 daysStep-by-step explanation:
Required equation is:
3d + 60 = 150Solution:
3d = 150 - 603d = 90d = 90/3d = 30 daysplease help asap question 2*****
Answer:
(11, 4)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define systems
x + y = 15
-2x + 5y = -2
Step 2: Define variables
Given: x = 11
Step 3: Solve for y
Define equation: x + y = 15Substitute in x: 11 + y = 15Isolate y: y = 4$3.00 markup 72%
Thanks for helping
Answer:
$5.16
Step-by-step explanation:
3.00 times 0.72 is 2.16. Because it's a markup that means you add. 3.00 plus 2.16 is 5.16.
Please help me with this question and explain it
Answer:
(1, 1)
Step-by-step explanation:
Multiply x and y by 0.25 to find the new coordinates after dilation
What is the value of the expression below?
6 + 5(9 ÷ 3)2
Answer:
36
Step-by-step explanation:
Divide 9 and 3
6 + 5 x 3 x 2
6+30
= 36
Someone plzz help you get 10 points.
Jason wants to solve the following system using the elimination method:
x + 3y = 10
2x + y = 5
What number should the equation 2x + y = 5 be multiplied by to eliminate y?
a. 2
b. -3
c. -2
d. 3
Answer:
No single Correct answer. Both b and d will work
Step-by-step explanation:
You want to get rid of y.
The first equation has a 3 in front of the y
Therefore you would have to multiply the second equation by 3 or - 3
If you use -3 you would add the two equations
If you use 3 you would subtract the two equations.
It is either b or d. Both will give you the same answer.
- Three
x + 3y = 10
-6x - 3y = - 15 Add
-5x = - 5 Divide by - 5
x = -5/-5
x = 1
+ Three
x + 3y = 10
6x + 3y = 15 Subtract
-5x = - 5
x = -5/-5
x = 1 Same thing.