the perimeter of a semi-circle is 25.17cm
calculate the value of the radius
Answer:
r = 4.01cm
r = radius
Step-by-step explanation:
Answer:
pie× r = 25.17cm
so, radius = 25.17/pie
25.17 / 22/7
1.14 cm( approx)
Find the common difference of the arithmetic sequence
-17, -15, -13, ...
Answer:
term 1 - term 2 = sequence
so
-17-(-15) = -2
and if you minus the rest by -2 it will give you the next term
-15-(-2) = -13
-13-(-2) = -11
Answer:
2
Step-by-step explanation:
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...................................................
Answer:
Brand A
Hope this helped!
Step-by-step explanation:
Question one: Carlie biked 26 miles in four hours. What was Carlie’s average speed in miles per hour?
Question two: If Carlie continues to bike at the same rate, about how many hours will it take her to bike 78 miles?
Answer:
OOOOOOOOHHH SHUTE BROTHER SORRY WISHED I COULD HELP but im blonde so sowwy
Step-by-step explanation:
How much does a $90 investment earn in interest at a yearly rate of 15% over the course of 1 year?
QUICK PLEASE
Answer:
$13.50
Step-by-step explanation:
You can use the simple interest formula here: I(interest)=P(principal amount)r(interest rate)t(years). I=Prt. So just plug in the numbers. I=90x.15x1=13.5
A tutor works with a group of students. She charges $40 for the tutoring session plus $30 for each student in the group.
What's the equation?
2x - 8 = 12 - 4x
solve for variable
Answer:
x = [tex]\frac{10}{3}[/tex] or [tex]3\frac{1}{10}[/tex]
Step-by-step explanation:
2x - 8 = 12 - 4x
1) Add 8 on boths sides:
2x - 8 + 8 = 12 - 4x + 8
2x = 20 - 4x
2) Add 4x to both sides:
2x + 4x = 20 - 4x + 4x
6x = 20
3) Divide 6 on both sides
[tex]\frac{6x}{6} = \frac{20}{6}[/tex]
x = [tex]\frac{10}{3}[/tex] or [tex]3\frac{1}{10}[/tex]
find the value of given expression
=》
[tex] \frac{ \sqrt{64} }{16} [/tex]
Answer:
the answer to your question is
[tex]0.5 \: or \: \frac{1}{2} [/tex]
The first two steps in the derivation of the quadratic formula by completing the square are shown below.
Which answer choice shows the correct next step?
Step 1: ax^2+bx+c =0
Step 2: ax^2+bx=-c
Answer: C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
how does using scientific notation help when computing with very small or very large numbers
Answer:
It abbreviates or shortens the numbers that you are working with making them easier to do calculations with.
Step-by-step explanation:
Example : 10,000 in scientific notation = 1.0x10^4
1,000,000 = 1.0x10^6
What is an equation of the line that passes through the points (5, 5) and (5, -8)
Answer:
Write the problem as a mathematical expression. (5,5), (5,−8)
Use y=mx+b to calculate the equation of the line, where m represents the slope and b represents the y-intercept. To calculate the equation of the line, use the y=mx+b format.
Slope is equal to the change in y over the change in x , or rise over run.
m=(change in y)/(change in x)
The change in x is equal to the difference in x-coordinates (also called run), and the change in y
is equal to the difference in y-coordinates (also called rise).
m=(y2−y1) / (x2−x1)
Substitute in the values of x and y
into the equation to find the slope.
m=(−8−(5)) / (5−(5))
Finding the slope m.
Undefined
x=5
Step-by-step explanation:
Answer:
m = undefined
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (5, 5)
Point (5, -8)
Step 2: Identify
(5, 5) → x₁ = 5, y₁ = 5
(5, -8) → x₂ = 5, y₂ = -8
Step 3: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{-8-5}{5-5}[/tex][Slope] Subtract: [tex]\displaystyle m=\frac{-13}{0}[/tex]Here we see that we have a number divided by 0. Since we know that we cannot divide any number by 0, our slope will be undefined. This will be a vertical line on a Cartesian plane of x = 5.
please help ASAP! thank you
Answer:
c
Step-by-step explanation:
5/9 = ?/54 whats the answer
Answer:
30/54
Step-by-step explanation:
1st make and equation so 5/9=x/54
now cross-multiply.
5/9=x/54
(5)*(54)=x*(9)
270=9x
you can flip the equation.
9x=270 (next divide both sides by 9)
x=30
so 30/54=5/9
hope this helps :)
The dollar value v (t) of a certain car model that is t years old is given by the following exponential function.
V (t) = 26,000 (0.84)^t
Find initial value of the car and the value after 11 years. Run your answers to the nearest dollar is necessary.
Initial value: $26,000
Value after 11 years: $_____
Answer:
$ 3820
Step-by-step explanation:
When the car is new, it is 0 year old. It means, t = 0
Initial value = 26,000 (0.84)^0 = 26,000(1)
Initial value = $ 26000
Similarly, when car is 11 year old, t = 11
=> 26000(0.84)¹¹ = 26000(0.14691)
≈ $ 3819.842
≈ $ 3820 (round to near ten)
really confused and need answers :) i need it to be factored
Answer: 15(5z^2+4z+8)
Step-by-step explanation:
You take out the common values
a members only speaker series allows people to join for $7 and then pays $1 for every event attended. what is the maximum number of events someone can attend for a total cost of $50
Answer:
7 event
Step-by-step explanation: 50/7=7
For Ms. Small birthday, her class bought her a watch for $76.50 and a Make-up kit for $23.95
About how much money will each student pay if there were 21 students in the class?
Answer: Each student will pay about $4.78
Step-by-step explanation: You have to add 76.50 and 23.95 and you will get 100.45 then divide by 21 and your product is $4.78. Hope it helped.
can anyone answer this????
Answer:
4x^2[tex]\sqrt{7x^{2} }[/tex]
A group of 10 people is choose a chairperson and vice-chairperson. They put all 10 peoples names into a bar. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and Vice-chair are there ?
Answer:
90
Step-by-step explanation:
A group of 10 people is choose a chairperson and vice-chairperson. They put all 10 peoples names into a bar. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and Vice-chair are there ?
This is calculated using the Permutation formula
nPr = n!/(n - r)!
Where:
n = 10 people
r = 2 = 2 positions to be filled , Chairman and Vice chairman
Hence:
10P2 = 10!/(10 - 2)!
= 90 ways
Solve for n. 5^{n} = 5^[11] x 5^ [3]
Answer:
n = 14
Step-by-step explanation:
[tex]5^n = 5^{11} * 5^3[/tex]
simplify the right side
[tex]5^n = 5^{14}[/tex]
Then you can easily see that
[tex]n = 14[/tex]
Answer:
n = 14
Step-by-step explanation:
[tex]a^{x}*a^{y}=a^{x+y}\\\\5^{n} = 5^{11}*5^{3}\\\\5^{n} = 5^{11+3}\\\\5^{n}=5^{14}\\\\[/tex]
n = 14
The mean of (x + 5), (x + 3), (2x + 1) and (x - 6) is 12. What is the
value of x?
Answer:
x=9
Step-by-step explanation:
answers too short so cigdtusrysyksrytf7hiuf6s4td6figiio
Find two numbers that add up to 158. The greater number is 40 more than the lesser number
HELPPP MEEE PLEASEEE!!!!
Answer:
1) 3 , 2)Add 8 floats 3) -2 4) Remove 8 anchors.
Step-by-step explanation:
Anybody know this ? I need help
Answer:
-15
Step-by-step explanation:
they are opposite angles so they are congruent
x+70=55
x=55-70
x=-15
Ms. Browne cut a 6 meter rope into 3 equal-size pieces to make jump ropes, Mr. Ware on 5-meter rope into 3 equal size pieces to make jump ropes, which class has longer jump rope
Below are two parallel lines with a third line intersecting them.
34°
Answer:
x = 34°
Step-by-step explanation:
corresponding angles made by a transversal intersecting parallel lines are congruent.
How many 14-inch cubes does it take to fill a box with width 214 inches, length 212 inches, and height 134 inches?
Answer:
It takes 40 14-inch cubes
Step-by-step explanation:
4 +y = 12. Substitute 8 for x.
Answer:
where should I substitute 8 for x? if its like this 4(8)+y=12 than its y=-20
Step-by-step explanation:
Find the slope given the graph (Don't forget to simplify!!):
NO "I UPLOAD THE ANSWER ON THIS SITE
help me out thank you have a wonderful day!
Answer:
x= 1/4
Step-by-step explanation:
i hope this helps :)