3 years ago

I will mark you brainiest if you can answer this

Mathematics

1 answer:

Sladkaya [172]3 years ago

4 0

Answer:

0.80

Step-by-step explanation:

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The circumference of a circle is 22 cm.

valkas [14]

$\bf \: Circumference \: of \: a \: circle = 2\pi \: r$

$\implies22 = 2 \times \dfrac{22}{7} r$

$\implies22 = \dfrac{44}{7} \times r$

$\implies \: r = \dfrac{22 \times 7}{44}$

$\implies \boxed{ r = \dfrac{7}{2} }$

Now,

$\bf \: Area \: of \: circle = \pi {r}^{2}$

$\rightarrow \: \frac{22}{7} \times ({ \frac{7}{2}) }^{2}$

$\rightarrow \frac{22}{ \cancel7} \times \frac{ \cancel{49}}{4}$

$\rightarrow \: 22 \times \frac{7}{4}$

$\rightarrow \: 11 \times \frac{7}{2}$

$\rightarrow \frac{77}{2}$

$\rightarrow \: 38.5 \: cm {}^{2}$

Area of rectangle = 38.5 cm².

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3 years ago

Maria bikes 15 miles per hour and starts at 10 miles. Glen bikes 20 miles per hour and starts at 0 mile. At what time and distan

Ilya [14]

10/(20-15)=2 hours
20*2=40 miles
15*2+10=40 miles
Glen catch up with Maria after 2 hours at 40 miles

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3 years ago

-5 +8 + (9) =<br> What is the answer for the following equestion

AlexFokin [52]

Answer:

Step-by-step explanation:

So we use PEMDAS:

-5 + 8 = 3

3 + 9 = 12

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A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 26

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Answer:

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Step-by-step explanation:

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PLEASE HELP ME I BEG YOU BRAINLIEST ALWAYS!!!!!

s2008m [1.1K]

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The measure of an inscribed angle is half the measure of the arc it intercepts. The sum of all arcs in a circle is 360°. Inscribed angles that intercept the same arc are congruent. Pretty simple algebra and geometry. It should take you less time to work these than it does to post them.

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