Answer:
Thomas age is 7
Step-by-step explanation:
X + 2x =21
3x=21
x=7
The radius of a circle is 7 cm . Find its circumference in terms of pi?
The radius of a circle is 7 cm. Find its circumference in terms of π.
Solution:-Radius (r) of a circle = 7 cm. (Given)
We know,
[tex] \dag [/tex] Circumference of a circle is 2πr.
So, its circumference is 2 × π × 7
Its circumference is 14π cm.
Its circumference in terms of π is 14π cm. [Answer]Answer:
Radius (r) of a circle = 7 cm. (Given)
We know,
Circumference of a circle is 2πr.
So, its circumference is 2 × π × 7
Its circumference is 14π cm.
Its circumference in terms of π is 14π cm.
A rectangular portrait is 4 feet wide and 4 feet high. It costs $9.00 per foot to put a gold frame around the portrait. How much will the frame cost?
Answer:
$144
Step-by-step explanation:
perimeter = 4 + 4 + 4 + 4 = 16 feet
16 x 9 = $144
3x^5 + 2x^2 What is the degree of this polynomial?
A. 1
B. 3
C. 5
D. 6
option ( C )
5
...........
Answer:
C. 5
Step-by-step explanation:
The degree is the highest exponent in the polynomial and in the polynomial given, 3x^5 has the highest exponent, being 5, so that would be the degree.
Hope this helps :)
At a point 70 feet from a tree, a forester measures the angle of elevation to the top of the tree to be 62°. How tall is the tree to the nearest foot?
Answer:
The tree is about 62ft tall
Step-by-step explanation:
sin(62)=x/70
70sin(62)=x
61.8=x
what is the radius of the cylinder
Answer:
5.99
Step-by-step explanation:
brainliest pwease??
The volume of a cylinder can be found with the following equation
[tex]V = r^2h\pi[/tex]
After inputting the known information we get
[tex]980\pi = r^220\pi \\\\[/tex]
Which simplifies to
radius = 7 or (-7)
For proof's sake, we can try the equation again with the known radius
[tex]980\pi = r^220\pi \\980\pi = (7^2)20\pi \\980\pi = (49)20\pi \\980\pi = 980\pi \\[/tex]
And because the radius is being squared, it can either be negative or positive.
What is the standard form of a trinomial?
Answer:
ax2 + bx + c
Step-by-step explanation:
the 2 is the square
Find the indicated measure. Round answers to the nearest hundredth.
I need help ASAP how do I do this
3. Here are diagrams that represent 0.137 and 0.284.
tenths
hundredths
thousandths
a. Use the diagram to find the value of. Explain your reasoning.
b. Calculate the sum vertically.
0.1 3 7
0.2 8 4
+
help please ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Answer:
A , 10 unit square
B , 13 unit square
C , 9 unit square
D , 25 unit square
Step-by-step explanation:
I HOPE IT HELPS:))) !!!!
Micheal is using the table below to find the value of 128 x 72 .
Thank you to anyone who answers .
Answer:
it's 128 x 72 =9,216
Step-by-step explanation:
N = 560
Kevin is painting a border around his dining room. What measurement does Kevin need to know about the wall before he starts?
1: Area
2: Volume
3:Perimeter
Answer:
Perimeter
Step-by-step explanation:
Perimeter is the distance around an object. In this scenario the object in question would be Kevin's dining room. Keyword for perimeter here is around.
answer for brainilest and 11 points
Answer:
-16/3
Step-by-step explanation:
I am not sure if you are aware of this but I am not sure if you are aware of the fact
The amount of sprinkles needed for a cookie recipe is proportional to the number of
cookies. A batch of 26 cookies calls for 2 tablespoons of sprinkles. What is the
constant of proportionality between the number of cookies and the number of
tablespoons of sprinkles?
Can someone please help me? And explain and show work.?
Answer:
C. 13
Step-by-step explanation:
26 ÷ 2 = 13
Let me know if that helped!
Thanks for letting me answer!
Explain Jan’s error
Answer:
Please check explanations
Step-by-step explanation:
To find the volume of the surface area of a cone, we need to use the height and not the slant height of the cone
The slant height, the height and the base radius forms a right triangle with the slant height being the hypotenuse of this triangle
By Pythagoras’ theorem, the square of the hypotenuse (slant height) equals the sum of the squares of the two other sides
6.5^2 = 2.5^2 + h^2
h^2 = 36
h = √36
h = 6 cm
So we have the volume as;
V = 1/3 * pi * r^2 * h
where r in this case is base radius of 2.5 cm
V = 1/3 * pi * 2.5^2 * 6 = 39.3 cm^3
37).
I have read 313 pages of my 1298 pages book. How many pages
must I read until I reach the middle?
Answer:
336
Step-by-step explanation:
Answer:
you should read 336 pages for you to reach the middle.
Step-by-step explanation:
1298/2--649
649-313--336
How much time does it take for a bird flying at a speed of 45km/h to travel a distance of 1800km?
Answer:
40 hours
Step-by-step explanation:
Time=Distance/Speed
Time=1800/45
Time=40 hrs
Answer:
[tex]40h[/tex]
Step-by-step explanation:
[tex]speed = \frac{distance}{time} \\ time = \frac{d}{s} \\ = \frac{1800km}{45kmh ^{ - 1} } \\ = 40h[/tex]
hope this helps you.
Can I have the brainliest please?
Have a nice day!
During Christmas sale, a local store in Virginia has marked all items 20% off. George Walker bought a microwave that normally sells for $100 and a refrigerator that usually goes for $250. Calculate the total sale price.
Answer:
it looks like the answer to this problem is $280.
Step-by-step explanation:
i got this answer because you add $100 and $250 together. You will get $350. Then you take 20% of that total. So, 20% of 350 is 70. Now take 350-70, which = 280. and that should be your final answer.
You are dealt one card from a standard 52-card deck. Find the probability of being dealt a spade.
The probability of being dealt a spade is
Answer:
The probability of being dealt a spade is 13/52.
Step-by-step explanation:
The perimeter of an equilateral triangle with side length x - 3 can be represented by the expression 3(x - 3) and the perimeter of a square with side length 2x + 1 can be represented by the expression 4(2x + 1). Which of the following expressions represents the total perimeter of the two shapes? Your answer 11x + 5 11X-5 5x + 13 3x-2
A:11× + 5
B:11×-5
C:5×+13
D:3×-2
A teacher is making worksheets for the next unit. He can create 3 worksheets in an hour and has 10 worksheets already created from the previous year. Which of the following lengths of time worked will not be long enough for the teacher to have created 27 worksheets. * Check All That Are True*
6 hours, 10 hours, 8 hours, 2 hours, 4 hours
Answer:
2 hours, 4 hours
Step-by-step explanation:
So lets go over what we know.
There are already 10 worksheets created.
Every 1 hour 3 more are made.
27 worksheets need to be made.
Ok, the first thing we can do is subtract the amount of worksheets needed by the amount we laready have:
27-10
=
17
Now, lets divide the amount of worksheets we still need, by how many we make each hour:
17/3
=
Well, 3 goes into 15, 5 times. Then 2 is left. So we know it takes 5 2/3 hours to create all 27 worksheets.
Looking at the answers, 6 hours, 8 hours, and 10 hours would work. However 2 hours and 4 hours would not work.
Hope this helps! ;)
The area of a rectangular park is 300 sq.M. If the length of the park is 25 m, find the breadth. *
Answer:
Breadth = 12 m
Step-by-step explanation:
Area of a rectangle is given by the formula,
Area = Length × Width
Value of area and length of the rectangular park has been given in this question.
Therefore, by substituting these values in the formula,
300 = 25 × Width
Width = [tex]\frac{300}{25}[/tex]
= 12 m
Therefore, width or breadth of the rectangular park will be 12 m.
Can you pllllsssssss help meeeeee
Answer:
0
Step-by-step explanation:
find mean : 2+3+4+7 divided by 4 equals 4
subtaract mean from valuses: 2-4= -2 , 3-4= -1 , 4-4= 0 , 7-4= 3 ,
find mean with new numbers: -2+-1+3+0 divided by 4 equals 0 (everything cancels out)
The number of members in an organization, M, changes as a function of t months. In which situation is M a linear function of t?
Answer: d
Step-by-step explanation:
The membership increases by 50 members in each of the six warmest months and decreases by 50 members in each of the other six months
Amy plotted these four points on a coordinate grid.
• Point A: (-2,-9)
•Point B: (-2,9)
•Point C: (2,-9)
•Point D: (2,9)
Which point is the first quadrant?
Answer:
Point D: (2, 9)
Step-by-step explanation:
The first quadrant includes points that have a positive x coordinate and a positive y coordinate. The only point that meets these conditions is point D, (2, 9).
A tree grew 92 4/5 feet in 19 1/3 years. What was the average yearly growth rate of the tree
Answer:
4 247/290 or 4.85 ft/year
Step-by-step explanation:
93 4/5 ÷ 19 1/3 = 469/5 ÷ 58/3 = 469/5 x 3/58 = 1407/290 = 4 247/290
Barry is saving up to put new tires on truck the tires will cost 860 he has 180 plans to save 68dollars a week how many weeks will it take to save his money
Answer:
167.36 weeks
Step-by-step explanation:
Given: Currently has $180, the cost is $860, and he plans to save $68 a week
To find: How many weeks will it take to save his money
Solution: If Barry currently has $180 and needs $860 for his tires also saves $68 a week, divide the amount he wants to save by the amount he saves a week, to find how many weeks will it take to save his money
860 ÷ 68 = 12.64
Subtract 180 because he already has $180 saved currently
180 - 12.64 = 167.36
Hence, it will take approximately 167 weeks to save his money up to $860
Use the graph that shows the solution to f(x) = 9(2).
What is the solution to f(x) = g(x)?
Select each correct answer
Answer:
Step-by-step explanation:
hello :
the first graph : 1 and -1 at second ; 2
I need help please...
Answer:
i think your answer would be $38.60
Step-by-step explanation:
i hope its right
Find the area of the triangle
A. 12 Square units
B. 5.5 square units
C. 24 Square units
D. 11 Square units
Answer:
A. 12 sq. units.
Step-by-step explanation:
Area of the triangle = 1/2 * base * height
= 1/2 * 6 * 4
= 12.
