3 years ago

Evaluate- x=23, y=7: x-1 divided by y+4

Mathematics

1 answer:

julia-pushkina [17]3 years ago

8 0

Answer:

Step-by-step explanation:

23 - 1/7+4

22/11 = 2

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Find the Equation of the line

romanna [79]

Answer:

$y = \frac{1}{2}x + \frac{1}{2}$

Step-by-step explanation:

Mark any two point on the line

(-1 , 0) & (-3 , -1)

Slope = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\$

$= \frac{-1-0}{-3-[-1]}\\\\= \frac{-1}{-3+1}\\\\= \frac{-1}{-2}\\\\= \frac{1}{2}$

m = 1/2 ; (-1 , 0)

Equation: $y - y_{1} =m(x -x_{1})$

$y - 0 = \frac{1}{2}(x - [-1])\\\\y = \frac{1}{2}(x + 1)\\\\y = \frac{1}{2}x + \frac{1}{2}$

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3 years ago

A rectangular lamina of uniform density is situated with opposite corners at (0,0) and (15,4). calculate its radii of gyration a

Sphinxa [80]

First, you have to find the moment of inertia along the x and y axes. Constant density is denoted as k.

$I_{x}= \int\limits^15_0\int\limits^4_0 {k y^{2} } \, dx dy= \frac{1}{3}k (15-4)^4=4880.33k$

$I_{y}= \int\limits^15_0\int\limits^4_0 {k x^{2} } \, dx dy= \frac{1}{3}k (15-4)^4=4880.33k$

Then, the radii of gyration for

x = √[I_x/m]
y = [I_y/m]

where m = k(15-4)² = 121k. Then,

x = y = [4880.33k/121k] = 40.33

I hope I was able to help you. Have a good day.

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3 years ago

124oz Equals what to lb

Korolek [52]

124 Oz is the same as 7.75 pounds

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3 years ago

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Semmy [17]

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One side of a triangle measures 10 inches. Which could be the measures of the other 2 sides of the triangle?

stellarik [79]

Answer:

B. 4 and 6 in

Step-by-step explanation:

The triangle inequality rule states: the length of a side of a triangle is less than the sum of the lengths of the other two sides and greater than the difference of the lengths of the other two sides.

So for the first qualification, we can eliminate A, C, and D. Therefore the answer is B, 4 & 6 in

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3 years ago