Answer: 9cm
Step-by-step explanation:
The circumference of a circle is given as: = 2πr
where,
π = 3.142
r = radius = unknown
Since circumference = 56.52cm, we'll slot it into the formula which will be:
Circumference = 2πr
2πr = 56.52
2 × 3.142 × r = 56.52
6.284r = 56.52
r = 56.52 / 6.284
r = 8.99
r = 9cm approximately
The sides of a triangle formed a geometric progression with a ratio r. For what values of r, it is possible?
Answer:
ok so i really shouldnt get points for this, but i wanted to help. The person who solved the problem here: https://math.stackexchange.com/questions/2911546/suppose-the-sides-of-a-triangle-form-a-geometric-progression-with-common-ratio-r is correct, but it is not very clear. Basically, he rounded to the third decimal point (since a sqrt has infinate decimals), and this might have been what got you the wrong answer. Basically the important thing is that r has to be between the (-1+√5)/2 and (1+√5)/2, or (-1+√5)/2 < r < (-1+√5)/2
The period of a pendulum is the time the pendulum takes to swing back and forth. The function L=0.81t^2 relates the length L in feet of a pendulum to the time t in seconds that it takes to swing back and forth. A convention center has a pendulum that is 50 feet long. Find the period.
Answer:
7.86seconds
Step-by-step explanation:
Given the expression used to model the length of the pendulum as
L=0.81t^2 where t is the period
IF the pendulum is 50 feet long, then L = 50 feet
Substitute
50 = 0.81t^2
t² = 50/0.81
t² = 61.7283
t = 7.86 seconds
Hence the period is 7.86seconds
The time in minutes for each of Sam's phone calls this week are shown in the list.
{9, 15, 5, 7, 9, 12, 11, 4}
Which statement is true regarding the duration of his calls?
Answer:15
Step-by-step explanation:
Is x = 5 a solution of the inequality x - 3<2 ? Explain
Answer:
No
Step-by-step explanation:
Plug in 5 for x
5 - 3<2
2<2
this is not true it should be equal to 2.
Answer:
Not a solution
Step-by-step explanation:
Plug in x = 5 in the equality,
x - 3 = 5 - 3 = 2 not < 2
So, x = 5 is not a solution
The hypotenuse of a right triangle measures 18 cm and one of its legs measures 16 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer: 8.25cm
Step-by-step explanation:
Use Pythagorean's Theorem for a right triangle:
[tex]a^2+b^2=c^2[/tex]
'A' and 'B' being the legs and 'C' being the hypotenuse.
[tex]16^2+b^2=18^2\\256+b^2=324\\b^2=68\\b=\sqrt{68}=8.25cm[/tex]
A triangle has of sides of lengths 19 centimeters,19 centimeters,and 26 centimeters and angle measures of 84 degrees ,48 degrees, and 48 degrees. Which image shows this triangle?
Answer:
I think it should be 2 triangle
If it get wrong , so sorry for wrong answer
Answer:
the 2nd one
Step-by-step explanation:
How do I solve 6+x/3=16
Answer: x=30
Step-by-step explanation:
1.Subtract 6 from both sides of the equation
2.Simplify
3.Multiply all terms by the same value to eliminate fraction denominators
4.Simplify
how many terms are in the following?
5x-7+8k+2x+k
Which inequality matches the graph?
A) x < -1
B) x > -1
C) × = 1
D) x < -1
Answer:
D) x < -1
Step-by-step explanation:
The open circle means it is <
100 POINTS!!!! The median of the set of numbers 12, 38, 45, $x$, 14 is five less than the mean. If x is a negative integer, what is the value of x?
Answer:
-14
Step-by-step explanation:
Since x is negative, the median of the set is 14. Therefore, the mean of the set is 14 + 5 = 19, and its sum is 19 · 5 = 95. Since 12, 38, 45, and 14 sum to 109, the remaining integer x must be 95 − 109 = −14 .
Answer:
x = -14Step-by-step explanation:
Given set of numbers:
12, 38, 45, x, 14Put them in ascending order, considering the x is negative
x, 12, 14, 38, 45The median is 14
The mean is 5 greater than median:
14 + 5 = 19The mean is calculated:
(x + 12 +14 + 38 + 45)/ 5 = 19x + 109 = 19*5x = 95 - 109x = -14If a coin is tossed 2 times, and then a standard six-sided die is rolled 2 times, and finally a group of two cards are drawn from a standard deck of 52 cards without replacement, how many different outcomes are possible?
Answer:
190,944 possibilities
Step-by-step explanation:
2 x 6 x 52 x 51
"Identify the like terms in the expression 10x+5+3x+1." I wasnt paying attention and so I dont know the answer help
Answer:
Simplifying
10x + -5(3x + -1) = 15
Reorder the terms:
10x + -5(-1 + 3x) = 15
10x + (-1 * -5 + 3x * -5) = 15
10x + (5 + -15x) = 15
Reorder the terms:
5 + 10x + -15x = 15
Combine like terms: 10x + -15x = -5x
5 + -5x = 15
Solving
5 + -5x = 15
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + -5x = 15 + -5
Combine like terms: 5 + -5 = 0
0 + -5x = 15 + -5
-5x = 15 + -5
Combine like terms: 15 + -5 = 10
-5x = 10
Divide each side by '-5'.
x = -2
Simplifying
x = -2
Step-by-step explanation:
Scott is 72 inches tall and Chris is 185 centimeters tall who is taller I know that Chris is taller but how tall is Chris in inches?
Answer: Chris is taller by 5 inches.
Step-by-step explanation:
You need to convert one of them to the other's unit of measurement so as to be able to measure effectively.
Assuming we convert to inches.
An inch is 2.54 cm.
Since Chris is 185 cm tall, Chris's height in inches is:
= 185 / 2.4
= 77 inches
Chris is therefore taller by 5 inches.
Plz answer no fake stuff plz
=======================================================
Explanation:
The first number along the top is 40, and it multiplies with the second number along the side to get 40 x 5 = 200
You can think of it as 4 x 5 = 20, then you tack on an extra 0 to the '4' and to the '2' as well, so it keeps things balanced.
So this explains how choice D is one of the answers.
-------------------------
After 200 fills in that question mark, we'll have these four numbers inside the table: 2400, 420, 200, and 35
Those four values add up to: 2400+420+200+35 = 3055
This shows that choice A is one of the answers.
--------------------------
Finally, choice E is the third answer because along the top we have 40+7 = 47, and along the side we have 60+5 = 65
Put another way, the total top length is the sum of the two smaller pieces of 40 and 7, which explains how the total top length is 47 units long. A similar argument happens for the left side values as well.
We ultimately have a rectangle that is 47 units across in the horizontal direction, and 65 units tall in the vertical direction.
With your calculator, you should note that 47*65 = 3055 to help confirm everything lines up.
--------------------------
Extra info:
Choice B is false because this contradicts choice D.
Choice C is false because it contradicts choice E
Dexter plans and records his spending. In the coordinate
plane below, the x-axis represents the number of days
before or after today. For example, -1 would represent
yesterday. The y-axis represents the amount of money
Dexter planned to spend in dollars. The points (-5,8)
and (2,8) represent Dexter's planned spending on two
separate days.
Plot the two points on the coordinate plane.
Answer:
mark me as brilliant ~_~Step-by-step explanation:
Answer:
7
Step-by-step explanation:
6th grade math help me pleaseee
Answer:
0
Step-by-step explanation:
7c =
7(0) = 0
hope you understand
Answer:
since the c is 0.. then substitute c as 0 in 7c...
hence the equation will be 7(0)...
equals to 7×0
the answer is 0
What is the image of the point (2, 8) after a rotation of 270 counterclockwise about the origin ?
Answer:
(8,-2)
Step-by-step explanation:
x and y switch places and x's sign is changed
15 out of 25 perfer skittles to M&MS. what percent of students prefer skittles
Answer:
60%
Step-by-step explanation:
Just divide 15 by 25 and then move the decimal point 2 places to the right. Then turn that number into a percentage.
Answer:
The answer is 60%
Step-by-step explanation:
You could check it by using a calculator, just enter 25x60%= 15
Find two consecutive integers whose product is 272.
pls help ...
Describe three ways to transform the graph of f(x) = log x to obtain the graph of g(x) = log 100x -1. Justify your answer.
Answer:
Translation up by one unitStep-by-step explanation:
Given
f(x) = log xLet's see what relationship has the function g(x) and f(x):
g(x) = log 100x - 1 = log 100 + log x - 1 = 2 + log x - 1 = log x + 1 = f(x) + 1g(x) = f(x) + 1As we see the function g(x) is the translation of the function f(x) up by one unit
Note: there is one transformation as described above. The interim steps in the solution could possibly be considered as different ways (like two units up and one unit down). The final position is just one way translation.
Plz guyss helpp;(
The question is above
Answer:
40
Step-by-step explanation:
The frequency column gives the number of houses in the sample, then
number of houses = 5 + 11 + 23 + 1 = 40
Triangle A: 6 cm, 8 cm, and 10 cm Triangle B: 310 in, 25in, and 35in Triangle C: 8 ft, 15 ft, and 17 ft Triangle D: 0.32 mm, 0.96 mm, and 1 mm Which of the four triangles is obtuse
Answer:
Triangle B
Step-by-step explanation:
For a triangle with sides a, b and c,
If c² = a² + b²
Then triangle will be a right triangle.
If c² > a² + b²
Triangle will be an obtuse triangle
If c² < a² + b²
Triangle will be an acute triangle.
By applying these properties in the given triangles,
Triangle A:
6 cm, 8 cm and 10 cm
6² + 8² = 36 + 64
6² + 8² = 100 [c² = a² + b²]
Therefore, it's a right triangle.
Triangle B:
310 in, 25 in and 35 in
25² + 35² = 625 + 1225
= 1850
Since, 310² = 96100
And 96100 > 1850 [c² > a² + b²]
Therefore, It's an obtuse triangle.
Triangle C:
8 ft, 15 ft and 35 ft
8² + 15² = 64 + 225
= 289
Since, 17² = 289 [c² = a² + b²]
Therefore, It's a right triangle.
Triangle D:
0.32 mm, 0.96 mm and 1 mm
(0.32)² + (0.96)² = 1.024
Since, 1² = 1
And 1 < 1.024 [c² < a² + b²]
Therefore, triangle will be an acute triangle.
:D PLEASE ANSWER QUICK
Answer:
1 and 7
Step-by-step explanation:
Alternate means that they are on opposite sides of the transversal, and exterior means that they are outside of the parallel lines
Answer:
C. The third option
Step-by-step explanation:
Do you see how 1 and 7 are both on the outside of the line? Since they are they would be alternate exterior angles and they are also congruent so that would still make them alternate exterior angles. (Sorry I am not really sure how to explain this)
Hope this helps :)
Please help me I don’t know the steps to solving/finding the measure of A (Geometry)
please help I don't get it
How are greater than and greater than or equal to similar?
How are they different
Suppose that $3000 is placed in an account that pays 17% interest compounded each year. Assume that no withdrawals are made from the account. Follow the instructions below. Do not do any rounding. (a) Find the amount in the account at the end of 1 year. (b) Find the amount in the account at the end of 2 years.
Answer:
After one year the balance in the account will be 3510. after two years the balance will be 4020
Step-by-step explanation:
Sorry I know I’m asking a lot of questions but what is Simplify - n x 8 x n
Answer:
-8n²
first multiply - on n times + on n = -n² ,then multiply by 8,it gives-8n²
Write four words that describe the operas
can be used with expressions
Sophie planted 1/5 of the garden lucas planted some too 2/3 still need seeds how much seeds did lucas plant
Answer:
2/15
Step-by-step explanation:
Sophie planted 1/5 of the garden lucas planted some too 2/3 still need seeds how much seeds did lucas plant
Let us represent the total number of seeds planted as = 1
Total number of seeds planted = Number of seeds( Sophie planted + Lucas planted + The number of seeds Lucas needs to plant)
Let the number of seeds Lucas needs to plant be represented by = x
1 = 1/5 + x + 2/3
x = 1 - (1/5 + 2/3)
Lowest Common Denominator = 15
x = 1 - (3 +10/15)
x = 1 - 13/15
x = 2/15
The number of seeds that Lucas planted = 2/15
Answer:
2/15
Step-by-step explanation: