Answer:
12.56 in.
Step-by-step explanation:
A=Pi*R to the 2nd power
A=3.14*2 to the 2nd power
A=3.14*4
A=12.56
Let me know if im wrong
Area of the circle is 12.56 square units which has radius 2 inches.
What is Circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
Given that radius of a circle is 2 inches.
We need to find the area of circle.
Radius= 2 inches.
π=3.14
We know that area of circle=πr²
Area of circle=3.142×2²
=3.142×4
=12.56 square inches.
Hence, area of the circle is 12.56 square units which has radius 2 inches.
To learn more on Circles click:
https://brainly.com/question/11833983
#SPJ2
ï will give the brainlist
Answer:
x = 28°Step-by-step explanation:
3x - 21° = 63°3x = 63°+ 21°3x = 84°x = 28°MARK ME AS BRAINLISTAnswer: X=28
Step-by-step explanation:
(3x-21) = 63
3(28)-21 = 63
3(28) = 84
84 - 21 = 63
63 = 63
un bebe tiene 26.000.000.000 celulas. un adulto tiene cerca de 4.94×10¹³ celulas ¿ cuantas celulas mas tiene un adulto que un recien nacido? escribe la respuesta en notacion cientifica
el adulto tiene 13 células más que el bebe
You have 0.2 liter of an acid solution whose acid concentration is 16 moles per liter. You want to dilute the solution with water so that its acid concentration is only 12 moles per liter. Use the given model todetermine howmany liters of water you should add to the solution.
Answer: 0.067 litres of water
Step-by-step explanation:
The mode is:
Concentration of new solution = Moles of acid in original solution / (Volume of original solution + Volume of water added)
Assume volume of water added is w.
12 = 16 (0.2) / (0.2 + w)
(0.2 + w) * 12 = 3.2
0.2 + w = 3.2 / 12
w = (3.2 / 12) - 0.2
w = 0.067 litres of water
The amount of water you should add to the solution is 0.067 liters.
Given
You have 0.2 liters of an acid solution whose acid concentration is 16 moles per liter.
You want to dilute the solution with water so that its acid concentration is only 12 moles per liter.
The concentration of new solution;You can also use the solution dilution calculator in order to calculate the concentration of ions in a diluted solution.
The amount of water you should add to the solution is given;
[tex]\rm Concentration \ of \ new \ solution =\dfrac{\text{Moles of acid in original solution } }{\text{Volume of original solution + Volume of water added}}\\\\12=\dfrac{16(0.2)}{0.2+w}\\\\12 (0.2+w)=16(0.2)\\\\2.4 +12w=3.2\\\\12w=3.2-2.4\\\\12w=0.8\\\\w=\dfrac{0.8}{12}\\\\w=0.067[/tex]
Hence, the amount of water you should add to the solution is 0.067 liters.
To know more about concentration click the link given below.
https://brainly.com/question/882576
Cement costs $76 per cubic yard. What is the cost of cement for a sidewalk that is 4 in. Thick, 3ft wide,and 40 ft. Long?
Answer:
112.46 yd³
Step-by-step explanation:
1 inch = 0.0278 yds
1 feet = 0.333 yd
Thickness = 4 inches = (4 * 0.0278) = 0.1112 yds
Width = 3 feets = (3 * 0.333) = 0.999 yds
Length = 40 feets = (40 * 0.333) = 13.32 yds
Volume of sidewalk :
Thickness * Width * Length
0.1112 * 0.999 * 13.32 = 1.479702816 yd³
1 yd³ of cement = $76
Cost :
1.479702816 yd³ * $76
= 112.457414016
= 112.46 yd³
3x-2.(x+1)=-2 denklemini sağlayan, x'in değeri kaçtır?
Answer:
3x - 2(x +1) =-2
3x - 2x - 2 =-2
x = - 2 +2
x = 0
hope it helps
Find the area of a triangle with:
b: 14 cm
h: 23 cm
ANSWERS
322 cm2
322 cm3
161 cm2
161 cm3
Answer:
161cm2
Step-by-step explanation:
Area: 1/2 x base x height
1/2 x 14 x 23=161
Area is measured in cm2
Hope this helps!
find the m and b of the table
9514 1404 393
Answer:
m = 1/2
b = -7
Step-by-step explanation:
The formulas for these can be used.
m = (y2 -y1)/(x2 -x1) . . . . . . . . . formula for slope given 2 points
m = (-9 -(-11))/(-4-(-8)) = 2/4
m = 1/2
__
b = y1 -m·x1 . . . . . . . . . . . . formula for y-intercept given slope and point
b = -11 -(1/2)(-8) = -11 +4
b = -7
please please answer will give brainliest
Answer:
c
Step-by-step explanation:
.5xBxH=.5x16x5=8x5=40
Answer:
c
Step-by-step explanation:
sources: dude trust me
help, look at picture
Answer:
y= 5/3 which is 1 2/3
Step-by-step explanation:
trust me
y=5/3
.......................
Simplify the expression. 25(z-4)
Answer:
25z-100
Step-by-step explanation:
What is the board feet of lumber if it has a 2-inch thickness, 3-inch width and length is 7ft?
A. 1
B. 3.5
C.5
D. 7.5
Answer:
B. 3.5
Step-by-step explanation:
2inch×3inch×7ft=board ft
2×3=6inch
7ft=84
6×84=504
504inch³=3.5board ft
#gamer
Mario has 160 pizzas and is collecting two pizzas a week. Write the equation for the number of pizzas Mario has
Answer:
160+2x
Step-by-step explanation:
Answer:
Mario has after 5 weeks 170 pizzas.
Step-by-step explanation:
Each time add to the chart 2 Pizzas and move a week.
here are 36 points lovely person but first any advice for a student - kid
Plz help me with this question
Answer:
C
Step-by-step explanation:
Remark
There are probably a couple of ways that you could do this. I'm going to pick the most obvious way.
Givens.
KN = 2.5
NO = 10
LM = 3
MP = x
Equation
NO/KN = PM / LM
Solution
10 / 2.5 = x / 3 Cross multiply
2.5x = 10 * 3 Combine
2.5x = 30 Divide by 2.5
x = 30/2.5
x = 12
That looks like it should be the answer, and it almost is, but you are asked for LP.
LP = LM + MP
LP = 3 + 12
LP = 15
The answer is 15
Find the volume of a right circular cone that has a height of 18 m and a base with a
radius of 5.8 m. Round your answer to the nearest tenth of a cubic meter.
Answer:
V=634.0 cubic meter.
Step-by-step explanation:
By formula V=πr^2(h/3)
so V=π5.8^2(18/3)
then 5.8square2 =33.64 ,18/3=6 and pi
multiply everything you'll get V=634.0990612
finally it says round to the nearest tenth which mean , V=634.0 cubic meter.
Answer:
634.1
Step-by-step explanation:
what is the solution to the inequality -x/10>-11
Answer:
x<110
Step-by-step explanation:
-x/10>-11
-x>-11*10
-x>-110
x>110
x<110
Answer:
x > - 110
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the greater than a sign from both sides of the inequality :
x / 10 - ( -11 ) > 0
x
Simplify ——
10
x
—— - -11 > 0
10
Subtracting a whole from a fraction
Rewrite the whole as a fraction using 10 as the denominator :
-11 -11 • 10
-11 = ——— = ————————
1 10
Equivalent fraction: The fraction thus generated looks different but has the same value as the whole
Common denominator: The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x - (-11 • 10) x + 110
——————— = ———————
10 10
x + 110
——————— > 0
10
Multiply both sides by 10
Subtract 110 from both sides
x > -110
Inequality plot for
0.100 x + 11.000 > 0
x > -110
2. Pierre works full time and is paid an hourly rate of $12.50 for 35 hours a week. He is paid for 52
weeks of the year. What are his total earnings for ONE YEAR?
Answer:
$22,750
Step-by-step explanation:
First, find out how much Pierre is paid per week: $12.50 x 35 -> $437.5/week
Then, multiply to find how much he is paid the whole year: $437.5 x 52 -> $22,750
-2.7F + 0.4F - 11 - 9
How do I solve this, like I understand the first few parts but when I have to combine Like terms I get stuck♀️
Answer:
-2.3F-20
Step-by-step explanation:
-2.7F + 0.4F - 11 - 9 = -2.3F-20
Answer:
I think when you collect all the like terms the equation comes out to be
Step-by-step explanation:
-2.3F - 20
Find the area of the triangle... HURRRY PLZ HELP HELP HELP. ILL MARK BRAINLYIST THINGY
Answer:
38.25
Step-by-step explanation:
A = 1/2(8.5)(9)
Answer:
[tex]38.25 mm^{2}[/tex]
Step-by-step explanation:
Area of a triangle = 1/2bh
b = 8.5
h = 9
1/2(8.5)(9) = 38.25
!!!!!!Plss Help Me!!!!!!!
Write the problem as an equation:
5n <65
Solve for n by dividing both sides by 5:
n <13
Because the inequality does not contain an equal sign, n (13) is not included in the answer so there would be an open circle on the number 13
The correct answer would be A.
Write an equivalent expression by distributing the "
−−" sign outside the parentheses:
−(3h−2.3k)−7
Answer:
= -3h + 2.3k -7
Step-by-step explanation:
you want to distribute your negative to each value in parentheses
remember that negative x negative = positive
remember that negative x positive = negative
i’m so confused by this does anyone have this figured out
Answer:
you have to find the angels
Step-by-step explanation:
The perimeter of the triangular park shown on the right is 15x-2 what is the missing length
Answer:
missing length is 6x - 1
Step-by-step explanation:
To find missing length, add two known sides and subtract from perimeter
(15x - 2) - (4x + 4 + 5x - 5)
(15x - 2) - (9x - 1) = 6x - 1
7. The ratio of the weight of cement to the weight of sand in a concrete mixture is 1:3.
Complete the table to show the different weights of cement or sand in the concrete mixture.
60 people attend a game night everyone chooses to play chess a two player game or cribbage a four player game all 60 people are playing chess or cribbage if there were 8 games of cribbage played how many games of chess was played
Answer:
there were 14 games of chess
Answer:
14 games of chess
Step-by-step explanation:
HELP I NEED HELP ASAP
how to divide 134 800 by 240 using long method?
Answer:
sumando
Step-by-step explanation:
sumando 240 134800 veces
− 2/3m = −1/2 solve for m
Answer:
m=-18
Step-by-step explanation:
-12=2/3m
How many degrees of rotational symmetry does the flower have
Answer:
It has 5-fold rotational symmetry (72 degrees). The Clematis shown has 8-fold rotational symmetry (45 degrees). It has 8 flower petals arranged around the center of the flower.
Step-by-step explanation:
What is the slope of the line?
y + 2 = -2 ( x - 3 )
A: -1/2
B: -2
C: 1
D: -1
D:) o b what ? you very whell
Step-by-step explanation:
A b. d. c
Answer:
The answer is -2
Step-by-step explanation:
I got this answer on Khan Academy.
Hope this helps! :)
