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3 years ago

Z to the -7th power times z to the 2nd power equals

Mathematics

1 answer:

Andrej [43]3 years ago

4 0

Answer:

z⁹ hope that helps you ...

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What is the value of z?

andreyandreev [35.5K]

Answer:

122 degrees, because x and z are alternate interior angles

122 degrees, because 58 degrees and z are same side interiors which add to 180

Step-by-step explanation:

1) we know that

m∠x=m∠z -----> by alternate interior angles

m∠x+58°=180° ----> by supplementary angles (form a linear pair)

m∠x=180°-58°=22°

therefore

m∠z=22°

2) m∠z+58°=180° ----> by same side interior angles

solve for z

m∠z=180°-58°=122°

therefore

122 degrees, because x and z are alternate interior angles

122 degrees, because 58 degrees and z are same side interiors which add to 180

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3 years ago

Help picture below problem 20

crimeas [40]

Answer:

it's.. parallelogram..

Step-by-step explanation:

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2 years ago

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Find mZA. Round to the nearest degree. 10 10 B 13 11

nadezda [96]

Step-by-step explanation:

${13}^{2} = {10}^{2} + {11}^{2} - 2 \times (11)(10) \cos(a) \\ 169 = 100 + 121 - 110 \cos(a) \\ 52 = 110 \cos(b) \\ \cos(b) = \frac{26}{55} \\ b = 61.78 \: degrees$

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3 years ago

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-1 1/8 - 5/8 answer plz

tiny-mole [99]

Answer:

-1 6/8

Step-by-step explanation:

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3 years ago

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Csc^3x-csc^2x-cscx+1=cot^2x(cscx-1)

belka [17]

Verify the identity:

$csc^3x-csc^2x-cscx+1\qquad =cot^2x(cscx-1)\\\\csc^2x(cscx-1)-1(cscx-1) =\quad \downarrow\\\\(csc^2x-1)(cscx-1)\quad \qquad \ =\quad \downarrow\\\\\bigg(\dfrac{1}{sin^2x}-\dfrac{sin^2x}{sin^2x}\bigg)(cscx-1)\ =\quad \downarrow\\\\\\\bigg(\dfrac{1-sin^2x}{sin^2x}\bigg)(cscx-1)\qquad \ =\quad \downarrow\\\\\\\bigg(\dfrac{cos^2x}{sin^2x}\bigg)(cscx-1)\qquad \qquad =\quad \downarrow\\\\\\cot^2x(cscx-1)\qquad \qquad \qquad =cot^2x(cscx-1)\qquad \checkmark$

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3 years ago

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