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4 years ago

PLEASE HURRY! I NEED AN ANSWER, THANKS! :)

Mathematics

1 answer:

Svetradugi [14.3K]4 years ago

5 0

Answer: D) Inverse does not exist

<u>Step-by-step explanation:</u>

The top row is 0 0 , which makes the determinant equal to zero.

The reciprocal of 0 is undefined so there cannot be an inverse for this matrix.

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Please help me, i'm not the best at math. Thank you !

8_murik_8 [283]

That he forgot the x in 2x after he did the problem and put it in the simplified form

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4 years ago

A video rental company offers a plan that includes a membership fee of $5 and charges $1 for every DVD borrowed. They also offer

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Answer:

for $5 plan if he rents 47 dvd it will pay 47% as one DVS cost 1 $ .

Step-by-step explanation:

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3 years ago

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Find the sum of the measures of the intereor angles of each convex polygon.

serious [3.7K]

Step-by-step explanation:

To find the sum of the measures of the intereor angles of each convex polygon

we using formula

$(x - 2)180°$

we can put the value of x is 54

then,

$\longrightarrow \: (54 - 2) \times 180°$

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we can put the value of x is 292

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we can put the value of x is 5

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8 0

3 years ago

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The equation of circle having a diameter with endpoints (-2, 1) and (6, 7) is

densk [106]

Answer:

$(x-2)^{2}+(y-4)^{2}=25$

Step-by-step explanation:

step 1

Find the diameter of the circle

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

$A(-2,1)\\B(6,7)$

substitute the values

$d=\sqrt{(7-1)^{2}+(6+2)^{2}}$

$d=\sqrt{(6)^{2}+(8)^{2}}$

$d=\sqrt{100}$

$d=10\ units$

The radius is half the diameter

$r=10/2=5\ units$

step 2

Find the center of the circle

the center of the circle is the midpoint between the endpoints of the diameter

The center is

$(\frac{-2+6}{2},\frac{1+7}{2})$

$(2,4)$

step 3

Find the equation of the circle

The equation of the circle is

$(x-h)^{2}+(y-k)^{2}=r^{2}$

substitute the values

$(x-2)^{2}+(y-4)^{2}=5^{2}$

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3 years ago