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3 years ago

Which decimal is equivalent to 8.118181818?

Mathematics

2 answers:

astra-53 [7]3 years ago

7 0

Answer:

the answer would be d

Step-by-step explanation:

grandymaker [24]3 years ago

4 0

The last one!!! (sorry I can't do recurring signs on my phone!) hope this helps :)

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The diagram above shows a rectangle inscribed in a circle AB=10 and AC =12 caculate the total surface area of the shaded part

erastova [34]

Answer:

$71.63 \: \: \mathrm{cm^2 }$

Step-by-step explanation:

Once we know the diameter of the circle, we can figure out the problem.

The diameter of the circle = The diagonal of the rectangle inscribed in the circle

To find the diagonal of the rectangle, we can use a formula.

$d=\sqrt{w^2 + l^2}$

The width is 10 cm and the length is 12 cm.

$d=\sqrt{10^2 + 12^2}$

$d \approx 15.62$

The diagonal of the rectangle inscribed in the circle is 15.62 cm.

The diameter of the circle is 15.62 cm.

Find the area of the whole circle.

$A=\pi r^2$

The $r$ is the radius of the circle, to find radius from diameter we can divide the value by 2.

$r = \frac{d}{2}$

$r=\frac{15.62}{2}$

$r=7.81$

Let’s find the area now.

$A=\pi (7.81)^2$

$A \approx 191.625$

Find the area of rectangle.

$A=lw$

Length × Width.

$A = 12 \times 10$

$A=120$

Subtract the area of the whole circle with the area of rectangle to find area of shaded part.

$191.625-120$

$71.625 \approx 71.63$

5 0

2 years ago

A statement with the word "per" is always a unit rate. true/false

11111nata11111 [884]

Answer:

True

Step-by-step explanation:

The definition of per is for each. Per is used with units to express a rate.

3 0

2 years ago

What is the product?

sveticcg [70]

Answer:

third answer is correct

Step-by-step explanation:

hello,

we need to compute

5*(-1)+(-2)*(-1)=-5+2=-3

-6*(-1)+(2)*(-1)=6-2=4

so the correct answer is

-3

hope this helps

8 0

3 years ago

Maria does weightlifting for 30 seconds and then aerobics for 60 seconds. She repeats this 10 times. If she does not take any br

VikaD [51]

Answer:

15 minutes

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Anyone know how to do this? Look at picture

wlad13 [49]

A) if they were the same function, they would have identical graphs ⇒ it's not A
B) it's flipped vertically, but it's not moved ⇒it's not B
C) it's flipped vertically, not horizontally ⇒ it's not C
So it must be D)

6 0

3 years ago