Answer:
A = 12.554 square inches
Step-by-step explanation:
Let's start with the formulas:
Circumference = [tex]2\pi r[/tex]; Area = [tex]\pi r^{2}[/tex]
We can use the circumference to find the radius, r, which we need for the area
12.56 = [tex]2\pi r[/tex]
Isolating r gives us [tex]\frac{12.56}{2\pi } = r[/tex]
A = [tex]\pi (\frac{12.56}{2\pi })^{2}[/tex]
Solving gives us 12.554, which you can further round if necessary.
how many milliliters are equivalent to 7.3 liters
Triangle A has side lengths 2, 3, and 4. Triangle B has side lengths 4, 5, and 6. Is Triangle A similar to Triangle B ? (will give brainliest)
Answer:
No
Step-by-step explanation:
there is a loss of 20% by selling a photocopy machine for rs 60000 at what price will the machine be sold to gain 12% find it
Answer:
Step-by-step explanation:
Loss is 20%
S.P=Rs60000
C.P=S.P*100/100-loss%
=60000*100/80=Rs75000
So he brought is at Rs75000
Now he wants 12% profit
So
S.P=(100+profit%)/100*C.P
=100+12/100*75000
=112/100*75000=Rs 84000
He will have to sell Rs14000 more to gain profit of 12%
Help.: 'A triangle has the side lengths shown.'
'Write an expression in simplest form that represents the perimeter of the triangle.'
Answer:
[tex]9x + 30[/tex]
Step-by-step explanation:
Perimeter is the sum of all sides so just add the length of all the sides together.
Remember to expand 4(x+3)
answer the questions!!!!!!!!
Answer:
hiiiiii
Step-by-step explanation:
The table shows the average cost of gasoline in the United States in dollars per gallon for the given years.
Year 1995 1996 2000 2001 2005 2006 2010 2011 2013 2014
Price per gallon ($) 1.13 1.14 1.33 1.49 1.88 2.36 2.77 3.15 3.39 3.40
(a) Write the least squares regression equation that models the data. Let x = time in years since 1995 and let y = price per gallon.
(b) Use the equation to estimate the price per gallon in 2030. Show your work.
From the given table, the year values, and prices, we have the following
equation and values;
(a) The least squares regression equation is; y ≈ 0.1316·x - 261.73
(b) The estimate of the price per gallon in 2030 is approximately $5.418
How can the equation and price be obtained from the table?(a) The coefficients of the least squares regression formula are
presented as follows;
[tex]a = \mathbf{\overline y - b \cdot \overline x}[/tex]
[tex]b = \mathbf{\dfrac{\sum \left(x_i - \bar x\right) \times \left(y_i - \bar y\right) }{\sum \left(x_i - \bar x\right )^2 }}[/tex]
Entering the given values in MS Excel, we have;
[tex]\overline x[/tex] = 2005.1
[tex]\overline y[/tex] = 2.204
[tex]b = \dfrac{56.456 }{428.9} \approx 0.1316[/tex]
a = 2.204 - 0.1316 × 2005.1 ≈ -261.73
The least squares regression equation is therefore;
[tex]\underline{y =0.1316\cdot x - 261.73}[/tex](b) In the year 2030, we have;
The price, y ≈ 0.1316 × 2030 - 261.73 = 5.418
In the year 2030, the price per gallon will be approximately $5.418
Learn more about least squares regression here:
https://brainly.com/question/26875415
The temperature of a hot iron rod drops by 8° every hour. If the temperature of the iron rod is 118°, find the temperature after 4 hours.
118 - 4 x 8 = 118 - 32 = 86°
need help fast----Which equation is y = (x + 3)2 + (x + 4)2 rewritten in vertex form?
y = 2 (x + seven-halves) squared minus one-fourth
y = 2 (x + seven-halves) squared minus one-half
y = 2(x + 7)2 – 73
y = (x + 7)2 – 24
Answer:
The Answer Is B
Step-by-step explanation:
Took the quiz
Answer:
its B
Step-by-step explanation:
i did the quiz and im verifying the other person's answer :)
What is the area of this composite figure
189.25 in2
228.5 in2
150 in2
78.5 in2
Answer:
189.25 in²
Step-by-step explanation:
First, let us find the area of the rectangle.
Area = Length × Width
= 15 in × 10 in
= 150 in²
Then let us find the area of the semicircle.
Area = [tex]\frac{1}{2}[/tex] × π r²
= [tex]\frac{1}{2}[/tex] × 3.14 × 5 × 5
= 0.5 × 3.14 × 25
= 1.57 × 25
= 39.25 in²
Now let us find the total area of the composite figure.
Total area = Area of the rectangle + Area of the semi-circle.
= 150 in² + 39.25 in²
= 189.25 in²
Does the system of equations below have no solution, 1 solution, or infinite solutions
= 2 − 1
= 2 + 4
Answer:
no solution
Step-by-step explanation:
y = 2x - 1 → (1)
y = 2x + 4 → (2)
substitute y = 2x - 1 into (2)
2x - 1 = 2x + 4 ( add 1 to both sides )
2x = 2x + 5 ( subtract 2x from both sides )
0 = 5 ← not possible
This indicates the system has no solution
Your annual salary is $28,460 your State personal deductions total $88 for a weekly pay period. The state tax rate is 3.6% of taxable income. The city rate is 1.7% of gross pay. Medical and group life insurance is paid by the company. Social security and Medicare are withheld .Union dues are $156 per year. FIT is $67 per pay period what is your net pay for each weekly pay period
Answer:
First, in one year you win:
$28,460
Now yearly we can subtract:
3.6% for the taxable income
1.7% for the gross pay:
(Those apply to the complete annual salary)
3.6% + 1.7% = 5.3%
This in decimal notation is 0.053, then paying those two things we have left:
$28,460*(1 - 0.053) = $26,951.62
Now we need to subtract the union dues, which are $156 per year.
$26,951.62 - $156 = $26,795.62
Now, this is yearly, and we want to know the weekly pay.
In one year we have 365 days.
One week has 7 days.
Then in one year, we have:
365/7 = 52.14 weeks.
Then the pay per week is:
$26,795.62/52.14 = $513.92
And now, each week we must pay $88 for state personal deductions, and $67 for FIT.
Then we have:
$513.92 - $88 - $67 = $358.92
Then the net pay for each weekly pay period is: $358.92
Jan says that 2 is between 0 and 3/4 on a number line. Do you agree? Why or why not?
Answer:
No
Step-by-step explanation:
2 is a positive whole number with a value greater than 1. 3/4 is NOT greater than 1. So 2 is greater than both 0 AND 3/4 and cannot be between the two numbers.
No, Jan is wrong because 2 is not in between 0 and 3/4 on a number line.
What is Number line?
Number line is a horizontal line where numbers are marked at equal intervals one after another form smaller to greater.
Given that;
Jan says that 2 is between 0 and 3/4 on a number line.
Here, The numbers on the number line are 0 and 3/4.
⇒ 3 / 4 = 0.75
So, We get;
⇒ 2 > 0
And, 3/4 < 2
Thus, The number 2 is not in between 0 and 3/4 on a number line.
Learn more about the number line visit:
brainly.com/question/28223520
#SPJ2
A cylinder has a base radius of 10in and a height of 10in. What is its volume in cubic
in, to the nearest tenths place?
Answer:
3141.59
Step-by-step explanation:
V=πr2h=π·102·10≈3141.59265
Which best describes the solution set of the compound inequality below?
2 + x ≤ 3x – 6 ≤ 12
a: 4 ≤ x ≤ 9
b: 4 ≤ x ≤ 6
c: –2 ≤ x ≤ 2
d: –2 ≤ x ≤ 3
I can't see it redo it so I can answer
Answer:
I believe the answer is B
draw a graph of f(x) =(x-5)^2 by shifting rule
[tex] \tt \tiny \gray{thanks}[/tex]
A 20% apple juice drink is mixed with a 100% apple juice drink. The function f(x)=(2)(1.0)+x(0.2)2+x models the concentration of apple juice in the drink after x gallons of the 20% drink are added to 2 gallons of pure juice. What will be the concentration of apple juice in the drink if 6 gallons of 20% drink are added? Give the answer as a percent but do not include the percent sign (%).
Answer: 40
Step-by-step explanation:
The concentration of pineapple when 2 gallons of pineapple juice are added to 6 gallons of the other juice is; 8.24
What are Functions?The function is a type of relation, or rule, that maps one input to a specific single output.
Given that the functions that model the concentration of apple juice in the drink after x gallons of the 20% drink are added to 2 gallons of pure juice.
f(x)=(2)(1.0)+x(0.2)²+x
If the concentration of apple when 2 gallons of apple juice are added to 6 gallons of the other juice;
f(6) = (2)(1.0)+ 6(0.2)²+ 6
f(6) = 2.0 + 6.24
f(6) = 8.24
Hence the concentration of pineapple when 2 gallons of pineapple juice are added to 6 gallons of the other juice is; 8.24
Learn more on functions here:
brainly.com/question/2833285
#SPJ2
Please help me with this question.. please.
y= 30,000x - 2000
y= -2000x +30,000
Answer:
y = -2000x + 30,000 is the correct answer.
Step-by-step explanation:
For slope intercept equation we first determine the intercept on the axis.
The intercept is a constant value, c, in the slope intercept equation.
In this case, the constant value is 30,000.
Our height, y, is directly proportional to minute,x, taken to descend.
y = mx + c
M is the slope/ gradient which is -2000 since the airplane is descending.
Since the plane descends 2000 feet per minute, its height after 1 minute should be:-
y = -2000(1) + 30,000
y = 28,000
This calculation confirms our above answer.
Talhah drove 45 miles in 1 hour. At this rate, how many miles will he drive in 4 hours?
Answer:
He will drive 180 miles in 4 hours. ( I think)
Step-by-step explanation:
If he keeps going at his rate which is 45 mph then if you multiply that by 4 then your answer should just be 180 miles.
Answer:
180 miles
Step-by-step explanation:
so he goes 45 miles per hour
since you need to find 4 hours just multiply 45 by 4
45 x 4 = 180
there's your answer
Karen spent half of her weekly allowance playing mini golf. To earn more money her parents let her wash the car for $9.
What is her weekly allowance if she ended with $15?
Define the variable :
Write an equation with the variable to represent the situation:
Solution (value of the variable) :
Answer:
$12
Step-by-step explanation:
(1/2)allowance plus 9 = 15
1/2x + 9 = 15
allowance is $12
Answer my question in the image please :)
Answer:
B
Step-by-step explanation:
I hope this helps! :) If you need an explanation, let me know. Other than that, have a lovely day!! <3
A(2;3) is ok on B and C
B(2 ; 6) is ok on B
C (8 ; 7) is ok on B as well
and
D (8 ; 3) is ok on B
=> B
0.6x-5=0.1x+7 what is the answer
Answer:
x = 24
Step-by-step explanation:
0.6x=0.1×x+7+5
0.6x=0.1×x+12
0.6x−0.1×x=12
0.5x=12
x=24
Answer:
x=24
Step-by-step explanation:
what is the product of? (2x - 1)(x + 3)
Can u solve this for me guys
The second exercices are equations
Answer:
the answer for number one is -2851/5 simplified its -570 1/5 or -570.2
(u can use photo math)
Step-by-step explanation:
Subtract 3x-4 from -7x+2 help asap I am on a math assignment and I don’t know the answer
the answer is :
[tex]-4x-2[/tex]
how to do it:
[tex]3x-7x-4+2[/tex]
[tex]3x-7x-2[/tex]
[tex]-4x-2[/tex]
Find the slope between the two points given. Then, use the slope and the first point to write the equation of the line in Point-Slope form. State the slope. Point One: (−4,5) Point Two: (0,0)
The slope is -5/4 and the equation of the line in point-slope form is y-5 = -5/4(x+4) + c.
What is slope of a line?The slope or gradient of a line is a number that describes both the direction X and Y and the steepness of the line. It is the ratio of the vertical change to the horizontal change between any two distinct points on a line.
For the given situation,
The points are (x1,y1) is (−4,5) and (x2,y2) is (0,0)
The formula of slope is
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
⇒ [tex]m=\frac{0-5}{0-(-4)}[/tex]
⇒ [tex]m=\frac{-5}{4}[/tex]
The equation of the line in point-slope form is
[tex]y-y1=m(x-x1)[/tex]
⇒ [tex]y-5=\frac{-5}{4} (x-(-4))[/tex]
⇒ [tex]y-5=\frac{-5}{4} (x+4)[/tex]
Hence we can conclude that the slope is -5/4 and the equation of the line in point-slope form is y-5 = -5/4 (x+4).
Learn more about slope of a line here
https://brainly.com/question/18894159
#SPJ3
What is the greatest six-digit number that can be written using all six digits below?
948285
Answer:
988542
Step-by-step explanation:
Highest numbers first because they hold greater values.
Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
Kevin claims that the smallest angle of rotation through the center of a regular 15-gon that carries it onto itself is 156° since 180(15−2)15=156. Decide if Kevin is correct. If Kevin is correct, enter 156 below. If Kevin is incorrect, enter the correct value of the smallest angle of rotation through the center of a regular 15-gon that carries it onto itself.
Answer:
Step-by-step explanation:
The formula for calculating the interior angle of a polygon is expressed as;
sum of internal angle = (n-2)180 where;
n is the number of sides of the polygon in consideration.
Given a 15 sided polygon, n = 15
sum of internal angle = (15-2)180
sum of internal angle = (13)180
sum of internal angle = 2340
Hence kevin is wrong, the correct answer is 2340
In parallelogram BKMH (angle)K = 6x – 15 and (angle) M = 2x + 19. Find the degree measure of angle B
Answer: 63
Step-by-step explanation:
HELP ASAP.....NO LINKS AND NO TROLLING PLS
How the equation changes
Flip over x-axis: __________ the entire function by a negative number
Flip over y-axis: __________ every x in the function by a negative number
Answer:
When you flip over the the x-axis, the y-coordinate becomes the additive inverse. I.e. ; if I flipped over the x-axis, a (x,4) would become (x,-4). When you flip over the y-axis the x becomes the additive inverse. (x,4) will become (-x,4)
Step-by-step explanation:
If this helped you, you're welcome. If you have any questions, LMK.
Have a good day, and good luck! ⭐
What is the perimeter of a square if its area is 50 cm??
Answer:
28.4 (rounded)
Step-by-step explanation:
7.1 times 7.1 is 50. To calculate area, you need to multiply 2 of the sides. so, that is the side length.
then, you multiply it by 4 for all four sides. that would be 28.4.
Answer:
54 or 30
Step-by-step explanation:
Perimeter is adding all the sides together. Area is multiplying LxW and 50 can be gotten by multiplying 5 by 10, or 25 by 2. So if you went by 5x10, both lengths would be 5 and the widths would be 10 or vice versa. Same goes for if you multiplied 25 by 2.