Find the exact TSA (total surface area) and volume of the following shape. You will need to use Pythagoras
Answers
Answer:
114 m²
Step-by-step explanation:
a² + b² = c²
a=3, b=8/2=4
3² + 4² = 9 + 16 = 25 = c²
c = 5
sooooo
3(6*5) + 2(3*4) = 114 m²
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Write an equation to solve this problem: Twenty-four is 25 percent of what number? Find the answer .
you and a child are on skates an you give each other a push if the mass of the child is half of your mass who has the greater acceleration
Answers
Simplify the following:
(3 + 1/3)/(2 + 2/5)
Put 2 + 2/5 over the common denominator 5. 2 + 2/5 = (5×2)/5 + 2/5:
(3 + 1/3)/((5×2)/5 + 2/5)
5×2 = 10:
(3 + 1/3)/(10/5 + 2/5)
10/5 + 2/5 = (10 + 2)/5:
(3 + 1/3)/((10 + 2)/5)
10 + 2 = 12:
(3 + 1/3)/(12/5)
Put 3 + 1/3 over the common denominator 3. 3 + 1/3 = (3×3)/3 + 1/3:
((3×3)/3 + 1/3)/(12/5)
3×3 = 9:
(9/3 + 1/3)/(12/5)
9/3 + 1/3 = (9 + 1)/3:
((9 + 1)/3)/(12/5)
9 + 1 = 10:
(10/3)/(12/5)
Multiply the numerator by the reciprocal of the denominator, (10/3)/(12/5) = 10/3×5/12:
(10×5)/(3×12)
The gcd of 10 and 12 is 2, so (10×5)/(3×12) = ((2×5) 5)/(3 (2×6)) = 2/2×(5×5)/(3×6) = (5×5)/(3×6):
(5×5)/(3×6)
3×6 = 18:
(5×5)/18
5×5 = 25:
Answer: 25/18
Answers
The nearest whole number to decimal number 8.525 will be 9.
A decimal number 8.525 is given in the question.
We have to round it to nearestwhole number.
What will be the value ; if 2.3456 is rounded off to thousands place ?
The value will be 2.346.
As per the question ;
The given decimal number is 8.525.
We have to round it to nearest whole number
As, the number right to decimal number is greater than 500 , we need to change it to 1000. So , the nearest whole number will be ;
= 9.000 or 9
Thus , the nearest whole number to decimal number 8.525 will be 9.
To learn more about decimal number conversion to nearest places click here ;
#SPJ2
4 or less, let it rest, 5 or more, raise the score lol
Answers
Answers
Answer:
D
Step-by-step explanation:
We need the formula for arc length (in radians) to solve this problem. The formula is:
Where
s is the arc length
r is the radius of the circle
is the intercepted angle
In this diagram, we can see that is beign intercepted by the big arc with measure 20 cm. So arc length, s, is 20
Also, if we look, we see that the radius is 5 cm, so r = 5
Now, we substitute into formula and find :
This is given in radians, so is 4 radians
D is the correct answer choice.
Answers
Answer:
43.30cm²
Step-by-step explanation:
Use Herons formula
S = (a+b+c)÷2
Where a, b, c is the sides of the triangle
If perimeter is 30cm
Since it's an equilateral triangle, all sides are equal.
Then
Perimeter = 3a = 30
a = 30/3 = 10cm
b = 10cm , c = 10cm
Therefore ,s= (10+10+10)÷2 = 30÷2 = 15cm
From Herons formula
Area = square root of s(s-a)(s-b) (s - c)
Area = sq rt 15(15 - 10)(15 - 10)(15 - 10)
Area = sq rt 15.× 5 × 5 ×5
Area = sq rt 1875
Area = 43.30cm²
I hope this was helpful, please rate as brainliest
Answer:
≈ 43.3 cm²
Step-by-step explanation:
The area (A) of an equilateral triangle is calculated as
A = ( s is the side length )
The 3 sides of an equilateral triangle are congruent, thus
s = 30 ÷ 3 = 10 cm
A = =
= 25
≈ 43.3 cm²
b. side = 15 cm, side = 7 cm, side = 9 cm
c. side = 14 cm, side = 6 cm, side = 7 cm
d. side = 14 cm, side = 6 cm, side = 8 cm
Answers
B i think im not sure sorry
Give them brainliest.