2 years ago

Simplified expression of 7z + 8 + 5z – 5z – 9?

Mathematics

1 answer:

Likurg_2 [28]2 years ago

6 0

Answer:

7z-1 hope this helps

Step-by-step explanation:

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vladimir2022 [97]

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2 years ago

In circle o, mZWBY = 72°.

likoan [24]

Answer:

Answer is B. 36 degrees

Step-by-step explanation:

From the diagram,

angle WBY = 2 × angle WXY

angle WBY = 72°

angle WXY =

$\frac{angle \: WBY}{2}$

$= \frac{72}{2}$

$= 36 \: degrees$

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3 years ago

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PolarNik [594]

Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Find the arc length of the semicircle. Either enter an exact answer in terms of π or use 3.14 and enter your answer as a decimal

cricket20 [7]

Answer:

The arc length of the semicircle is $5 \pi\ units$ or $15.7\ units$

Step-by-step explanation:

The complete question in the attached figure

we know that

The circumference of a semicircle is given by the formula

$C=\frac{1}{2}\pi D$

where

D is the diameter of the semicircle

we have

$D=10\ units$

substitute

$C=\frac{1}{2}\pi (10)$

$C=5 \pi\ units$ ----> exact value

Assume

$\pi =3.14$

$C=5(3.14)=15.7\ units$ ----> approximate value

therefore

The arc length of the semicircle is $5 \pi\ units$ or $15.7\ units$

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3 years ago