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yan [13]
3 years ago
9

Helppp pleaseeeeeeeee

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0

Answer:

2n - 7 = 3n - 3

Step-by-step explanation:

Just count the n's and the (-1)'s

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I’ll give brainly The measure of ABC = 180°.
PolarNik [594]

Answer:

y=37

Step-by-step explanation:

the addition of the 3 angles is 180°

then 40 + y +29 +2y  = 180

        69 + 3y =180

        3y  = 180 -69

        3y= 111

        y =111 ÷ 3

        y = 37

5 0
3 years ago
Which expression is equivalent to 1/27 ( 1 over 27 ) ?
harkovskaia [24]

Answer:

Option D

Step-by-step explanation:

Option A:

(3)¹ × (3)⁻¹⁰   =  (3)⁽¹⁻¹⁰⁾   = 3⁹

= 4\frac{1}{3^9}

= 4\frac{1}{19683}

Option B :

(3)⁻¹ × (3) ¹⁰   = 3⁽¹⁰⁻¹⁾

= 3⁹

= 19683

Option C :

(3⁻⁴) × (3)⁷   = 3⁽⁷⁻⁴⁾

               = 3³

Option D :

3⁴ × 3⁻⁷ = 3⁴⁻⁷

= 3⁻³

=  4\frac{1}{3^3}

= 4\frac{1}{27}

Therefore, option D is the answer.

3 0
3 years ago
Read 2 more answers
Someone help 9th grade math i will give brainliest
DENIUS [597]

Answer:

I think it may be H. but let me know if i am wrong. if i am right plz mark brainliest

Step-by-step explanation:

27 divided by 3 is 9, 27/3=9 because 27/3 is the same exact thing as 27 divided by 3. So the answer has to be 9

6 0
3 years ago
Please help! Picture below.
Lady bird [3.3K]
Positive correlation as they go to bottom left to top right

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which has a greater effect on the volume - changing the radius by a given amount or changing the height by the same amount/ why?
AURORKA [14]
Assuming we’re talking about a cylinder, whose volume formula is V = pi r^2 h…

It will have a greater effect to change a variable’s value that has a greater power on it.

Changing h from 1 to 2 doubles the volume.
Changing r from 1 to 4 quadruples the volume, because 1^2 = 1 and 2^2 = 4. The effect of the change on r is amplified by the power.
3 0
3 years ago
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