Answer:
Mean, median, mode is 7 and the range is 4
Scotty bought a used truck for $3,000. If it had been new, he
-would have paid $15,000.-What is the percent decrease?
Answer:
20%
Step-by-step explanation:
Percentage Calculator: 3000 is what percent of 15000? = 20%
Write an equation of a line passing through the point (-4, -11) and perpendicular to the line 4x +5y equals -45
5 1/5 - 5/12 ÷ (1/6 × 2/3)=
Answer:
47.8
Step-by-step explanation:
What you want to do first is 5 1/5 - 5/12 which is 4.78,
then 1/6 x 2/3, which is 0.1,
then you do 4.78 divided by 0.1, which is 47.8
Which equation represents the statement: Three times the sum of a number and 5 is -30
Answer:
Not 100 percent but im pretty sure it is 3(n+5)=-30 i found other sites saying its that its up to you if you wanna believe me
Step-by-step explanation:
16 x 0.2 please answer correct
Answer:
3.2
Step-by-step explanation:
Answer:
I believe it's 3.2!
If cosθ = x, then = ± √1+x/2.
A. sin θ/2
B. cos2θ
C. sin2θ
D. cos θ/2
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[tex] \cos( \alpha ) = x[/tex]
[tex] {sin}^{2}( \alpha ) = 1 - {cos}^{2}(x) [/tex]
[tex] {sin}^{2}( \alpha ) = 1 - ({x})^{2} [/tex]
[tex] \sin( \alpha ) = ± \sqrt{1 - {x}^{2} } [/tex]
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Look :
[tex] \sin(2 \alpha ) = 2. \sin( \alpha ) . \cos( \alpha ) [/tex]
[tex] \sin(2 \alpha ) = 2 \times ( ± \sqrt{1 - {x}^{2} })(x) \\ [/tex]
[tex] \sin(2 \alpha ) = ± \: 2 \: x \: \sqrt{1 - {x}^{2} } [/tex]
________________________________
[tex] \cos(2 \alpha ) = {cos}^{2}(x) - {sin}^{2}(x) [/tex]
[tex] \cos(2 \alpha ) = {x}^{2} - ({± \: \sqrt{1 - {x}^{2} } })^{2} \\ [/tex]
[tex] \cos(2 \alpha ) = {x}^{2} - |1 - {x}^{2} | [/tex]
If | 1 - x² | ≥ 0 :
[tex] \cos(2 \alpha ) = {x}^{2} - (1 - {x}^{2}) [/tex]
[tex] \cos(2 \alpha ) = {x}^{2} - 1 + {x}^{2} [/tex]
[tex] \cos(2 \alpha ) = 2 {x}^{2} - 1 [/tex]
If | 1 - x² | < 0 :
[tex] \cos(2 \alpha ) = {x}^{2} - ( - 1 )(1 - {x}^{2} ) \\ [/tex]
[tex] \cos(2 \alpha ) = {x}^{2} + 1 - {x}^{2} [/tex]
[tex] \cos(2 \alpha ) = 1 [/tex]
_________________________________
[tex] {sin}^{2}( \frac{ \alpha }{2} ) = \frac{1 - \cos( \alpha ) }{2} \\ [/tex]
[tex] {sin}^{2}( \frac{ \alpha }{2} ) = \frac{1 - x}{2} \\ [/tex]
[tex] \sin( \frac{ \alpha }{2} ) = ± \sqrt{ \frac{1 - x}{2} } \\ [/tex]
_________________________________
[tex] {cos}^{2}( \frac{ \alpha }{2} ) = \frac{1 + \cos( \alpha ) }{2} \\ [/tex]
[tex] {cos}^{2}( \frac{ \alpha }{2} ) = \frac{1 + x}{2} \\ [/tex]
[tex] \cos( \frac{ \alpha }{2} ) = ± \sqrt{ \frac{1 + x}{2} } \\ [/tex]
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Thus the correct answer is (( D )) .
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Can someone check This answer for me and tell me if it’s 7 or 6 PLEASE ASAP THX
Answer:
im pretty sure its 6
Step-by-step explanation:
1. Solve the equation. (1 point)
5x-1= 14
Answer:
the answer is 3
Step-by-step explanation:
you multiply 5 by 3 and subtract it by 1 to get 14
Write the equation for a line that passes through (5,-4) and is perpendicular to the
linear function 2x - 10y = 0
Answer:
y = -5x -24
Step-by-step explanation:
Given parameters:
Coordinates of the line = (5, - 4)
Linear function ;
2x - 10y = 0
Solution:
The equation of the line perpendicular to this line will have a slope that is the a negative inverse of the given line;
2x - 10y = 0
Equation of a line is given as;
y = mx + c
y and x are the coordinates
m is the slope
c is the y-intercept
We find the slope and y-intercept of the new line;
From: 2x - 10y = 0
Rewrite;
-10y = -2x
y = [tex]\frac{-2}{-10}[/tex]x
y = [tex]\frac{1}{5}[/tex]x
The slope of this line is [tex]\frac{1}{5}[/tex] , the line perpendicular will have slope of -5
For the new line;
y = mx + c
let us find c;
-4 = -5( -4) + c
-4 = 20 + c
c = -20 - 4
c = -24
The equation of the perpendicular line is;
y = -5x -24
Find the value of x.
Answer:
The answer is 109 degrees.
Step-by-step explanation:
Any triangle's angles add up to 180 in total, so we can create the equation 64+45+__=180. Using some simple algebra we can change this equation into the equation 180-109=71. This solves the inner triangle, and the outside angle, x is supplementary (meaning it adds up to 180) to 71. 180-71 = 109.
Glad I could help!
What is (1 +i)5?
-4-4i
-4+4i
4-4i
4+4i
Answer:
It's -4 -4i
Step-by-step explanation:
Because it is
A
-4-4i
For the person that commented. the 5 is an exponent.
The Farmers Market sells apples by the bushel, and each bushel of apples weighs 42 lbs. A bushel of large apples contains 84 apples. If a bushel of small apples contains twice as many apples as a bushel of large apples, how many small apples are in 1 lb of apples?
Megan purchased a bushel of apples from the Farmers Market that contained only large and small apples. There were exactly 129 apples in the bushel Megan purchased. Based on this and information from the previous problem, what is the positive difference between the number of large apples and the number of small apples in the bushel of apples Megan purchased?
Which car will travel the greatest distance (in miles) per gallon?
A. The total distance that a Toyota Prius can travel in miles (M) given any gallons of gas (g) is given by M
= 35g.
B. A Toyota Sienna used 2.5 gallons to travel 55 miles.
C AND D ATTACHED
BEST ANSWER GETS BRAINLIEST
9k + 3 > 6k - 18
9k + 3 > 6k - 18
Answer:
k > −7
Step-by-step explanation:
1 Subtract 6k6k from both sides.
9k+3-6k>-189k+3−6k>−18
2 Simplify 9k+3-6k9k+3−6k to 3k+33k+3.
3k+3>-183k+3>−18
3 Subtract 33 from both sides.
3k>-18-33k>−18−3
4 Simplify -18-3−18−3 to -21−21.
3k>-213k>−21
5 Divide both sides by 33.
k>-21/3
6 Simplity 21/3 to 7.
k>-7
Hope This Helps.
Answer:
k > -7
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :
9*k+3-(6*k-18)>0
Step by step solution :
STEP 1:
Pulling out like terms
1.1 Pull out like factors :
3k + 21 = 3 • (k + 7)
Equation at the end of step 1:
STEP 2:
2.1 Divide both sides by 3
Solve Basic Inequality :
2.2 Subtract 7 from both sides
k > -7
Inequality Plot :
2.3 Inequality plot for
3.000 X + 21.000 > 0
One solution was Made :
k > -7
HOPE THIS HELPS!
PLEASE MARK BRAINLIEST IF THIS HELPED YOU LEARN! :)
Simplify 2•5^2 . Please
Help
Answer:50
Step-by-step explanation:
Answer: 50
Step-by-step explanation: according to pemdas you do exponets first so 5 over 2=5*5=25 then multiply by 2=25*2=50
What is the estimated sum of 69,129,139,97
Answer:
440
Step-by-step explanation:
70 + 130 + 140 + 100 = 440
What is an equation of the line with slope 5 and y-intercept 8?
Answer:
y=5x+8
Step-by-step explanation:
You need have the slope-intercept formula:
y=mx+b
m=slope
b=y-intercept
You replace the m and b with the slope and y-intercept which is 8
y=5x+8
Hope this helps!
Suppose 56V% of politicians are lawyers. If a random sample of size 787787 is selected, what is the probability that the proportion of politicians who are lawyers will differ from the total politicians proportion by greater than 4%4%
Answer: 0.0238
Step-by-step explanation:
Given : Proportion of politicians are lawyers: p= 0.56
Sample size : n= 787
Let [tex]\hat{p}[/tex] be th sample proportion.
The the probability that the proportion of politicians who are lawyers will differ from the total politicians proportion by greater than 4% will be :-
[tex]P(|\hat{p}-0.56|>0.04)=P(-0.04>\hat{p}-0.56>0.04)=\\\\ P(-0.04+0.56>\hat{p}>0.04+0.56)\\\\=P(0.52>\hat{p}>0.60)\\\\=P(\dfrac{0.52-0.56}{\sqrt{\dfrac{0.56(1-0.56)}{787}}}>\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.60-0.56}{\sqrt{\dfrac{0.56(1-0.56)}{787}}})\\\\=P(-2.26>z>2.26)\ \ \ [Z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}]\\\\=1-P(-2.26<z<2.26)\\\\=1-(2P(Z > 2.26)-1)\ \ \ [P(-z<Z<z)=2P(Z > |z|)-1]\\\ =2-2P(Z > 2.26)\\\\=2-2(0.9881)=0.0238[/tex]
Hence, the required probability = 0.0238
Find the number of five-digit numbers less than 40 000 in which the three-digit numbers formed by a consecutive digits are all divisible by either 17 or 23. Remember, zero cannot be the first digit in a three-digit number.
Please show grade 7 math work
Answer:
Following are the code to this questiuon:
def fiv(y):#defining a method fiv that hold a parameter
x = str(y) #defining a variable x that convert the value y in string
return three(x[0:3]) and three(x[1:4]) and three(x[2:5])#use return keyword to call the method three
def three(x): #defining a method three that hold x variable as a parameter
y = int(x) #use y to convert x in integer
return y>=100 and (y%17==0 or y%23==0) #use return that gives a value which is divisiable by 17 or 23
print([y for y in range(10000,40000) if fiv(y)])#use print method to print value
Output:
Please find the attached file.
Step-by-step explanation:
In the above code, two methods "fiv and three" is declared that accepts one variable as a parameter, which can be defined as follows:
In the fiv method, an "x" variable is defined that covert the value into a string and use to call the three methods.Inside the three methods, a y variable is declared, that convert the value into integer and use return keyword, that checks value is divisible by 17 or 23. In the print method, it accepts the given value, which is passed in the loop to print the value.the distance from point A to line BD
1. Michelle bought 30 marbles at the flea market. She wants to put them into itte bags with 5 marbles in each bag. How many bags will she needs Show how you found your answer.
Answer:
She will need 60 bags.
Step-by-step explanation:
You would need to divide 5 marbles by 30 marbles and get 60 groups. So 60 bags.
Given a quadratic function that is reflected across the
1
X-axis, vertically compressed by a factor of shifted
3
3 units to the right, and 2 units down, write the equation
of this quadratic function in vertex form.
Answer:
y=1/3 x2
Step-by-step explanation:
Jewelry store buys a gold watch to sell the price of the watch is marked up 45% the store sells the watch for $2610 how much did the jewelry store pay for the watch
I put this as the answer 1174.50 and my teacher said I got the answer wrong
Answer:
$1435.50 is your answer
Step-by-step explanation:
$2610 - 45% = 1435.50
Solve for the missing variables.
x= ?
y= ?
report mean explanation with an example please please someone answer me please i want someoone to help me please please i will put brainliest answer and thank him and vote 5 stars please answer me please
neil runs every day after school. the table shows the distance run in minutes.
No. one variable is always a constant value times the other. That constant is know as the "constant of proportionality". This does not have that. Hope this helped
=3
<3
Add or subtract as indicated.
(3 + 3i) - (3 + 2i) + (1 + 41)
Answer:
i+42
Step-by-step explanation:
(3+3i) - (3+2i) + (1+41)
= 3+3i-3-2i+1+41
= 3i-2i+1+41
= i+42
Solve it please I need help
A rectangular garden must have a perimeter of 155 feet and an area of at least 1400 square feet. Describe the possible lengths of the garden. Round your answers to the nearest foot. The approximate length of the garden is at least feet and at most feet.
Answer:
Step-by-step explanation:
Perimeter of a garden = 2(L+W)
Area of the gerden = LW
L is the length
W is the width
Given
Perimeter = 155ft
Area = 1400ft²
Substitute
1400 = LW
155 = 2L+2W
from 1;
W = 1400/L
Substitute into 2;
155 = 2L + 2(1400/L)
155 = 2L + 2800/L
155L = 2L² + 2800
2L²-155L + 2800 = 0
Factorize
L = 155±√155²-4(2)(2800)/4
L = 155±√24025-22400/4
L = 155±√1625/4
L = L = 155±40.31/4
L = 194.31/4
L = 48.82 feet and;
L = 155-40.31/4
L = 28.67ft
Hence the approximate length of the garden is at least 28.67 feet and at most 48.82 feet.
The possible lengths of the garden are:
The least approximate length = 29 feet
The most approximate length = 49 feet
The area of the rectangle is at least 1400 square feet
That is:
Area ≤ 1400
Let the length be represented by L
Let the width be represented by W
Let the area be represented by A
The area of a rectangle is:
Area = Length x Width
A = LW
LW ≥ 1400....................(1)
The perimeter of the rectangle is 155 feet
P = 2(L + W)
2(L + W) = 155............(2)
Make W the subject of the formula
L + W = 155/2
L + W = 77.5
W = 77.5 - L.............(3)
Substitute W = 77.5 - L into equation (1)
L(77.5 - L) ≥ 1400
77.5L - L² ≥ 1400
-L² ≥ 1400 - 77.5L
0 ≥ L² - 77.5L + 1400
L² - 77.5L + 1400 ≤ 0
Solving the quadratic inequality above
29 ≤ L ≤ 49
The least approximate length of the garden = 29 feet
The most approximate length of the garden = 49 feet
Learn more here: https://brainly.com/question/19308936
Which shows the greatest common factor of these numbers being 14?
Answer:
of what numbers
Step-by-step explanation:
Answer:
The answer is b
Step-by-step explanation:
The reason it is b is because i just did the question and it was right