2 years ago

How do I change my username on this app?

Mathematics

2 answers:

julia-pushkina [17]2 years ago

4 0

You cant change your username

elena-s [515]2 years ago

3 0

You must contact a moderator (best if you contact one from the emergency moderator list) and let them know what you want them to change it to.

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Please I need the correct answer please

Rzqust [24]

(−1

2 )(n^3)+

1

2 n^2+4.6n+(−

1

2)(n^3)+

1

2 n^2+4.5n

−1

2 n^3+

2 n^2+4.6n+

−1

2 n^3+

2 n^2+4.5n

Combine Like Terms:

−1

2 n^3+

1

2 n^2+4.6n+

−1

2 n^3+

1

2 n^2+4.5n

=(−1

2 n^3+

−1

2 n^3)+(

1

2 n^2+

1

2 n^2)+(4.6n+4.5n)

=−n^3+n^2+9.1n

Answer:

=−n^3+n^2+9.1n

Everything underlined means its a fraction/divided hope this helps :D

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2 years ago

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Juliette [100K]

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2 years ago

5 divide 3/4 and simply

Aloiza [94]

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3 years ago

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2 years ago

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the ratio of the measures of the sides of a triangle is 21:8:14. if the perimeter of the triangle is 215 ft, find the length of

Anestetic [448]

Answer:

see explanation

Step-by-step explanation:

the perimeter is the sum of the 3 sides of the triangle

add the parts of the ratio 21 + 8 + 14 = 43

divide the perimeter by 43 to find the value of one part of the ratio

$\frac{215}{43}$ = 5 ft ← 1 part of the ratio, hence

21 parts = 21 × 5 = 105 ft

8 parts = 8 × 5 = 40 ft

14 parts = 14 × 5 = 70 ft

the 3 sides of the triangle are 105 ft, 40 ft and 70 ft

6 0

3 years ago