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liq [111]
2 years ago
10

A rectangle is 9 ft long and 40 in. wide. What is its area in square feet? (Note: 1 ft = 12 in.)

Mathematics
2 answers:
ivolga24 [154]2 years ago
4 0

Answer: first option

Step-by-step explanation:

Let's make the following conversion:

40 inches to feet (Knowing that 1 feet=12 inches):

(40in)(\frac{1ft}{12in})=3.333ft

The formula for calculate the are of  a rectangle is:

A=l*w

Where l is the lenght and w is the width.

Therefore, when you substitute values, you obtain the following result:

l=9ft\\w=3.33ft\\\\A=(9ft)(3.333ft)\\A=30ft

ad-work [718]2 years ago
3 0

Answer:

The correct answer is first option 30 ft²

Step-by-step explanation:

Formula:-

Area of rectangle = l x b

l - Length of rectangle

b - Breadth of rectangle

It is given that,A rectangle is 9 ft long and 40 in

<u>To find the area</u>

here l = 9 ft

b = 40 in = 40/12 ft

Area = l x b = 9 x (40/12) = 30 ft²

Area of rectangle =  30 ft²

The correct answer is first option  30 ft²

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Answer:

<h2>The answer is 0.23(approx).</h2>

Step-by-step explanation:

The given die is a three sided die, hence, there are only three possibilities of getting the outcomes.

We need to find the probability of getting exactly 3s as the result.

From the sequence of 6 independent rolls, 2 rolls can be chosen in ^6C_2 = \frac{6!}{2!\times4!} = \frac{30}{2} = 15 ways.

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Probability of not getting a outcome rather than 3 is 1 - \frac{1}{4} = \frac{3}{4}.

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2 years ago
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S_A_V [24]
The paraboloid meets the x-y plane when x²+y²=9. A circle of radius 3, centre origin. 

<span>Use cylindrical coordinates (r,θ,z) so paraboloid becomes z = 9−r² and f = 5r²z. </span>

<span>If F is the mean of f over the region R then F ∫ (R)dV = ∫ (R)fdV </span>

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<span>∫ (R)fdV = ∫∫∫ [θ=0,2π, r=0,3, z=0,9−r²] 5r²z.rdrdθdz </span>

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Answer:

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Hope this helps <3

Stay safe

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Ps. It would mean a lot if you marked this brainliest

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