Answer:
-40a⁴b⁸
Step-by-step explanation:
(8ab⁶)(-5a3b²)
(8ab⁶)(-5a³b²)
=(8×-5)(a×a³)(b⁶×
=-40(a⁴)(b⁸)
=-40a⁴b⁸
Answer:
3 hours 15 minutes
Step-by-step explanation:
Simon is ironing shirts it takes him 15 minutes to iron 2 shirts.
2 shirts = 15 minutes
1 shirt = (15/2) minutes
For 26 shirts,
or
Time = 3 hours 15 minutes
Hence, it will take 3 hours 15 minutes to iron 26 shirts.
240 cm squared
Explanation: split it into two figures, 6x7x4 and 2x4x9 and then add them. It’s a lot easier
The approximate angle will be made by the stairway with the ground is 46.24°.
As we are been given that, the length of the stairway from the ground is 18 feet, under the right angle triangle, that will be the length of the hypotenuse. Next, since the elevation of the top of the stairway from, the ground is 13 feet, which is considered to be the length of the perpendicular of the assumed right angled triangle.
Now, we are asked to find the angle x,
Since, we know that
sin θ = perpendicular/ hypotenuse
So, substituting the required values the desired angle we get is :
sin θ = 13/18
sin θ = 0.7222
θ = sin ⁻¹ (0.7222)
= 46.2364
x = 46.24
the angle θ or x is 46. 24°.
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Answer:
Step-by-step explanation:
Suppose the cost C(x), to build a football stadium of x thousand square feet is approximated by C(x) = 7,250,000/x + 60. Given the function, we can substitute values for x to determine the cost of a particular size of stadium or we can substitute values for C(x) to determine the number of square feet.
if the cost of the stadium was $8,000, the, we would determine the size of the stadium, x by substituting x $8,000 for C(x). It becomes
8000 = 7250,000/x + 60
8000 - 60 = 7250000/x
7940 = 7250000/x
7940x = 7250000
x = 7250000/ 7940
x = 913 ft^2