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stepladder [879]

3 years ago

9

Determine the coefficient matrix of the system of equations latex: 3x-2y = 7,\; x+4y=2. 3 x − 2 y = 7 , x + 4 y = 2. what is the

determinant? g

1 answer:

Amanda [17]3 years ago

4 0

When put in matrix form, the coefficients of

... 3x -2y = 7

... x + 4y = 2

look like

$\left[\begin{array}{cc}3&-2\\1&4\end{array}\right]$

The determinant is 3×4 - 1×(-2) = 14.

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svetoff [14.1K]

$\bold{\huge{\underline{ Solution\: 2 }}}$

The name of the circle is <u>IJKL</u>
The name of central Angle
$\sf{\underline{= {\angle} IHJ }}$
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${\bigstar}$ Circle :- It is a round figures, which has no end points.

${\bigstar}$ Central angle :- It the angle ,which lie in the middle of the circle.

Here, H is the mid point of the circle .So, Angle IHJ is the central angle.

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Here, KL is the line which acts as a secant because it intersect the circle from point K and point L.

$\bold{\huge{\underline{ Solution\: 3 }}}$

Semicircle = FGH and FIH
Minor Arc :- FG or GH
Major Arc :- FHG or GFH

${\bigstar}$ Semicircle :- Semicircle is nothing but the half of the circle.

<u>Here</u><u>, </u><u>In </u><u>second </u><u>diagram </u>

FGH and FIH are acting as two semicircles which simulatineously forming one circle.

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<u>Here</u><u>, </u>

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<u>Here</u><u>, </u>

FHG or GFH is the major arc as it is larger than the semicircle of the given circle .

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2 years ago

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Answer:

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2 years ago

A population of size 320 has a proportion equal to .60 for the characteristic of interest. What are the mean and the standard de

tiny-mole [99]

Answer:

The answer is c.) 0.6 and 0.14

Step-by-step explanation:

Given population has a size of 320.

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Therefore $\hat{q}$ = 1 - $\hat{p}$ = 1 - 0.6 = 0.4

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