2 years ago

What is a rational number that is between 5.2 and 5.5

1 answer:

4 0

A rational number can be represented in a ratio of a/b.

Therefore, 5.3 would be a rational number in between 5.2 and 5.5, as it can be represented as 53/10.

Hope that helps!

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Find the area of sector AOB. Express your answer in terms of pi and rounded to the nearest tenth.

STatiana [176]

63 $\pi$

The sector is $\frac{70}{360}$ ; there are 360 degrees in a circle.
You use the formula $\pi r^{2}$ .
18cm is the radius, and then you square it to get 324.
Multiply 324 by $\frac{70}{360}$
You get 63 $\pi$

7 0

3 years ago

X^2 + 11x + 28 = 0 please help gotta make this longer

RideAnS [48]

Answer:

x= -7 x = -4

Step-by-step explanation:

x^2 + 11x + 28 = 0

What two numbers multiply to 28 and add to 11

7*4 = 28

7+4 =11

(x+7) (x+4) =0