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vladimir1956 [14]
3 years ago
14

If ABCD is a parallelogram find the value of unknown size of angle ​

Mathematics
1 answer:
fiasKO [112]3 years ago
3 0

b=7×10(opposite angle of parallelogram)

b=70

3x+10+b=180(cointerior angles)

3x=10

x=33.33

a+70=180(cointerior angles)

a=110

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Mr. Brown's class is collecting books for a book drive. They started with 2 books. On the first day, they had 6 books. On the se
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Answer:

the answer is b i click it and it was right

y=2(3)^x

Step-by-step explanation:

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Which describes the graph of mc014-1.jpg on [0, 3)? The steps are at –2 from 0 to 1, at –1 from 1 to 2, and at 0 from 2 to 3. Th
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1) The graph consists of three horizontal segments, with discontinuities (jumps) at x = 1, x = 2, and x = 3. 
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Kisachek [45]

Answer:

55 hours

Step-by-step explanation:

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Where 'x' is each hour the pond is being drained.

Then, solve.

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Use cramers Rule to solve the following system:
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Answer:

The solution to the system is x=1,y=-2 and z=-5

Step-by-step explanation:

Cramer's rule defines the solution of a system of equations in the following way:

x= \frac{D_x}{D}, y= \frac{D_y}{D} and z= \frac{D_z}{D} where D_x, D_y and D_z are the determinants formed by replacing the x,y and z-column values with the answer-column values respectively. D is the determinant of the system. Let's see how this rule applies to this system.

The system can be written in matrix form like:

\left[\begin{array}{ccc}5&-3&1\\0&2&-3\\7&10&0\end{array}\right]\times \left[\begin{array}{c}x&y&z\end{array}\right] = \left[\begin{array}{c}6&11&-13\end{array}\right]

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x= \frac{D_y}{D}=\frac{-398}{199}\\ y=-2

x= \frac{D_z}{D}=\frac{-995}{199}\\ x=-5

3 0
3 years ago
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