Is 17 heartbeats in 15 seconds a unit rate? Why or why not?

1 answer:

8 0

No, because it is not per second. You would have to simplify to per one second for it to be a unit rate. Hope it helps! :)

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(6z 2 - 4z + 1)(8 - 3z).

Yakvenalex [24]

Distributive property
a(b+c)+ab+ac
a(b-c)=ab-ac

(6z^2-4z+1)(8-3z)
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(8-3z)(6z^2-4z+1)
distribute
8(6z^2-4z+1)-3z(6z^2-4z+1)=
48z^2-32z+8-18z^3+12z^2-3z=
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4 years ago

Math problem : suppose you cut a sheet of papper into fourths and throw away three of the fourths. you cut the reminding fourths

Darina [25.2K]

(1/4)^6 = 1/4^6 = 1/4096

3 0

3 years ago

1. The measure of angle GHI is 120°. Angle GHI is cut in half with ray HK, if angle

andrezito [222]

Answer:

Step-by-step explanation:

Ray HK is an angle bisector, which means that it cuts the angle exactly in half. So half of GHI is 60. If GHK is 3x + 48, and that is half of angle GHI. then

3x + 48 = 60 and

3x = 12 so

x = 4

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4 years ago

Which expression is equivalent to

Nat2105 [25]

Answer : The correct option is $\frac{1}{36a^{4}b^{10}}$

Step-by-step explanation :

According to the BODMAS rule, when the expression contains brackets open ((), {}, []) we have to first simplify the bracket followed by of (powers and roots etc.) and then we have to solve the division, multiplication, addition and subtraction from left to right order (respectively).

The given expression is:

$[\frac{(2a^{-3}b^4)^2}{(3a^5b)^{-2}}]^{-1}$