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4 years ago

What’s the correct answer for this?

Mathematics

1 answer:

Luba_88 [7]4 years ago

6 0

Answer:

B. The radius

Step-by-step explanation:

The area of a sector of a circle is ½ r² ∅, where r is the radius and ∅ the angle in radians subtended by the arc at the centre of the circle so we need to know the radius for it

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Which value is equivalent to 7 multiplied by 3 multiplied by 2 whole over 7 multiplied by 5, the whole raised to the power of 2

vivado [14]

Answer:

Option b) 36 over 25 is correct

That is given expression is equivalent to $\frac{36}{25}$

Step-by-step explanation:

Given expression can be written as below:

$(\frac{7\times 3\times 2}{7\times 5})^2\times \frac{7^0}{5^{-3}}\times 5^{-9}$

To find the value of given expression:

$(\frac{7\times 3\times 2}{7\times 5})^2\times \frac{7^0}{5^{-3}}\times 5^{-9}=(\frac{6}{5})^2\times (\frac{1}{5^{-3}})^3\times \frac{1}{5^9}$

$=(\frac{6}{5})^2\times (5^3)^3\times \frac{1}{5^9}$

$=\frac{36}{25}\times 5^9\times \frac{1}{5^9}$

$=\frac{36}{25}$

Therefore $(\frac{7\times 3\times 2}{7\times 5})^2\times \frac{7^0}{5^{-3}}\times 5^{-9}=\frac{36}{25}$

Option b) 36 over 25 is correct

That is given expression is equivalent to $\frac{36}{25}$

4 0

4 years ago

Explain how the diagram can help find the area of a circle

anastassius [24]

Answer:

Step-by-step explanation:

This is a really famous diagram! The circle has been divided into many wedges (think slices of pizza!). The wedges have been colored alternately blue and yellow, then the wedges were rearranged to form a "rectangle" -- well, it's approximately a rectangle because the wedges have arcs (pieces of a circle) on them. See how the bottom and top edges of the rectangle look bumpy?

The area of the "rectangle" is approximately $\pi r^2$ . The reason is that the height of the rectangle is <em>r</em> , the radius of the circle. And the length of the rectangle is about $\pi r$ -- half the circumference of the circle. It's half because the circumference is in the bumpy parts of the wedges--half blue, half yellow.

The approximation improves as the number of wedges increases. In fact, as the number of slices (sorry, pizza again) gets larger, the length of the rectangle gets closer and closer to half the circumference. In other words, making more wedges makes the rectangle less bumpy!

3 0

3 years ago

The number of mosquitoes active near a pond is given by the function f(x)=32x−2 , where x is the number of minutes after dusk

galina1969 [7]

Answer:

Yes. The interval (0, 5) is a reasonable solution because the function is positive in that region

Step-by-step explanation:

Hope it helps and I also hope yoh have a great rest of your day!

3 0

3 years ago

17 This conversion graph is used to convert between US dollars and British pounds.

IgorLugansk [536]

Answer:

Step-by-step explanation:

a) 10 pounds

b) 24 pounds

c) dk this hopes this helps so far

3 0

3 years ago

Read 2 more answers

A bacteria colony is quickly growing in a petri dish. The number of bacteria, y , is modeled by the function y=2(10)^2 where x i

koban [17]

Answer:

C = 159600

Step-by-step explanation:

Because its Y=2 (10) square so times by its self.

7 0

4 years ago