3 years ago

What’s the formula to find the shaded area?

Mathematics

2 answers:

Natalka [10]3 years ago

4 0

Answer:

Shaded area = 123.84

Step-by-step explanation:

Shaded area = 576 - 452.16

Shaded area = 123.84

trapecia [35]3 years ago

3 0

shaded area = area of outer figure - area of inner figure........

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Please answer this question

Vladimir [108]

Answer:

a = 3/2
b = -1/2

Step-by-step explanation:

$\dfrac{\sqrt{5}-1}{\sqrt{5}+1}=\dfrac{(\sqrt{5}-1)(\sqrt{5}-1)}{(\sqrt{5}+1)(\sqrt{5}-1)}\\\\=\dfrac{5-2\sqrt{5}+1}{5-1}=\dfrac{6-2\sqrt{5}}{4}\\\\=\dfrac{3}{2}-\dfrac{1}{2}\sqrt{5}$

Comparing this to the form a+b√5, we see that ...

a = 3/2

b = -1/2

8 0

3 years ago

Describe how to use a ten fact to find the difference for fifteen take away eight

sertanlavr [38]

15 - 8

8 + 2 is 10, so there are 5 leftover. 2 + 5 is 7, so 8 + 7 is 15.

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3 years ago

Mrs. Clever rolls a number cube once.

Zinaida [17]

Answer:

I think it would be 1 out of 6 or B.

Step-by-step explanation:

I think so because there are 6 sides to a cube and if Mrs.Clever only rolls it once then it would be 1 out of 6.

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3 years ago

What is the slope of a trend line that passes through the points (1.3) and (10, 25)?

taurus [48]

Answer:

Step-by-step explanation:

-1/2

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3 years ago

Read 2 more answers

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NikAS [45]

Answer:

5mins- 300s

210mins- 12600s

5mins-3

210mins-?

300/3=12600/x

x=12600/300 x 3

=126

or 210/5=42

42x3=126

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3 years ago