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siniylev [52]
2 years ago
10

If a simple machine requires an effort of 20 newtons to lift a load of 100 newtons, its

Mathematics
2 answers:
Tcecarenko [31]2 years ago
8 0
A. 5
Hope this helps!
umka2103 [35]2 years ago
3 0

Answer:

A. 5

Step-by-step explanation:

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Josh is putting up a fence around a garden that is next to a wall. He only has 54 feet of fence and the length of the garden mus
vova2212 [387]

Answer:

Length = 12 feet

Width = 30 feet

Step-by-step explanation:

Let l be the length of the garden and let w be the width:

We have system of equations

2w + l = 54

l = 2w + 6

We substitute 2w + 6 for l

2w + 2w + 6 = 54

4w + 6 = 54

4w = 54 - 6

4w = 48

w = 48/4

w = 12 feet

Width(w) = 12 feet

We find the Length

l = 2w + 6

l = 2(12) + 6

l = 24 + 6

I = 30 feet

7 0
2 years ago
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Choose the inequality that represents the following graph.
Anarel [89]
The answer is A I’m pretty sure
5 0
2 years ago
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The first one to answer this correctly I will give them 5 stars, a thank you AND brainlest!!!!
disa [49]

Answer:

never

Step-by-step explanation:

8 0
2 years ago
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Find the number b such that the line y = b divides the region bounded by the curves y = 36x2 and y = 25 into two regions with eq
Gemiola [76]

Answer:

b = 15.75

Step-by-step explanation:

Lets find the interception points of the curves

36 x² = 25

x² = 25/36 = 0.69444

|x| = √(25/36) = 5/6

thus the interception points are 5/6 and -5/6. By evaluating in 0, we can conclude that the curve y=25 is above the other curve and b should be between 0 and 25 (note that 0 is the smallest value of 36 x²).

The area of the bounded region is given by the integral

\int\limits^{5/6}_{-5/6} {(25-36 \, x^2)} \, dx = (25x - 12 \, x^3)\, |_{x=-5/6}^{x=5/6} = 25*5/6 - 12*(5/6)^3 - (25*(-5/6) - 12*(-5/6)^3) = 250/9

The whole region has an area of 250/9. We need b such as the area of the region below the curve y =b and above y=36x^2 is 125/9. The region would be bounded by the points z and -z, for certain z (this is for the symmetry). Also for the symmetry, this region can be splitted into 2 regions with equal area: between -z and 0, and between 0 and z. The area between 0 and z should be 125/18. Note that 36 z² = b, then z = √b/6.

125/18 = \int\limits^{\sqrt{b}/6}_0 {(b - 36 \, x^2)} \, dx = (bx - 12 \, x^3)\, |_{x = 0}^{x=\sqrt{b}/6} = b^{1.5}/6 - b^{1.5}/18 = b^{1.5}/9

125/18 = b^{1.5}/9

b = (62.5²)^{1/3} = 15.75

8 0
3 years ago
If each month in reno had the same average rainfall as in august, what would the total number of millimeters be after 12 months
Inessa [10]

Answer:

  12 times the August rainfall

Step-by-step explanation:

The total of 12 of the same value is 12 times that value. Multiply the August average by 12 to get your answer.

3 0
3 years ago
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