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satela [25.4K]
3 years ago
12

The area of a rectangle is 7.35m squared . The width is 2.1 m. What is the length?

Mathematics
1 answer:
Kryger [21]3 years ago
5 0

Answer:

this is easy. so take the equation used for finding the area (A = LW). you then place the sizes in the proper places (making 7.35 = 2.1L). now all you have to do is divide 7.35 (area) by 2.1 (width) to get your length (3.5).

Step-by-step explanation:

7.35 = 2.1L

7.35/2.1 = 3.5

L = 3.5

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How do I Determine if ratios are equivalent
Veseljchak [2.6K]

Step-by-step explanation:

multiply the ratio by the second ratios second number

4 0
3 years ago
Let X denote the life of a semiconductor laser (in hours) with the following probabilities: P(X ≤ 5000) = 0.05 and P(X > 7000
Anna [14]

Answer:

a) P [ x ≤ 7000] is 0.55

b) P [ x > 5000 ] = 0.95

c)  P [ 5000 < x ≤ 7000 ] = 0,5

Step-by-step explanation:

a)  P [ x > 7000 ]  =  0.45   straightforward    P [ x ≤ 7000] is 0.55

The whole spectrum of probabilities is 1 which in this particular case is divided in two parts having 7000 as a limit, then we subtact 1 - 0.45

b) P [ x ≤ 5000]  = 0.05   again we get P [ x > 5000] taking 1-0.05 to get

P [ x > 5000 ] = 0.95

c) P [ 5000 < x ≤ 7000 ]

Under Normal curve distribution the probability of  x ≤ 7000 includes values   smallers  ( to the left of 5000) so we subtract from 0.55 - 0.05 = 0.50

c) P [ 5000 < x ≤ 7000 ] = 0,5

6 0
3 years ago
Help me please answer
neonofarm [45]

Answer:

Volume of cone = 90 ft³

Step-by-step explanation:

diameter of cone = 6ft

radius of cone = 3ft

height = 10ft

Volume of cone = \frac{\pi r^2h}{3}

V = (3 × 3 × 3 × 10)/3

V = 270/3

V = 90 ft³

3 0
2 years ago
7(x+2)+34=55 (Find X in the following question)
nydimaria [60]

Answer:

x = 1

Step-by-step explanation:

7(x+2)+34=55

7(x+2)+34=55

(7)(x)+(7)(2)+34=55

7x+14+34=55

7x+48=55

7x = 55 - 48

7x=7

<h3>x =  \frac{7}{7}</h3>

x = 1

<h3>Hope it is helpful.....</h3>
8 0
3 years ago
Read 2 more answers
Model the following problem with a quadratic equation. Then solve. Find the length of a side of a square with an area of 75 ft2.
Vaselesa [24]

Answer:

x = 8.6603 m

Step-by-step explanation:

If x is the length of a side of the square, the area of the square will be x^2.

So, if the area of the square is 75 ft2, we can formulate the quadratic equation:

x^2 = 75

Now, solving the equation, we just need to make the square root of 75:

x = sqrt(75) = ±8.6603

x1 = 8.6603

x2 = -8.6603

Now, as x represents the length of a side of the square, and measurements can't be negative, we take only the positive value, so:

x = 8.6603 m

5 0
3 years ago
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