3 years ago

3/8 + 4/5 in simplest form

Mathematics

2 answers:

wel3 years ago

8 0

Answer:

47/40 or 1 7/40

Step-by-step explanation:

(3x5)+(4x8)/8x5

lianna [129]3 years ago

6 0

Answer:

1 7/40

Step-by-step explanation:

3/8 + 4/5

15/40 + 32/40 (need common denominators to add)

47/40

1 & 7/40

cannot simplify because 7 is prime

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Maisha has 3(x+2) hours reading a book 8x-5 hours sleeping and 2x hours playing.How many hours did she spend in all of these act

Mandarinka [93]

Add all the activities together

=3(x+2) + (8x-5) + 2x
multiply 3 by all in parentheses
=(3*x) + (3*2) + (8x-5) + 2x
=3x + 6 + 8x - 5 + 2x
combine like terms
=(3x + 8x + 2x) + (6 - 5)
=13x + 1

ANSWER: 13x + 1

Hope this helps! :)

6 0

3 years ago

Find the zeros of the polynomial function and state the multiplicity of each.

zheka24 [161]

$\bf f(x) = 4(x + 7)^2(x - 7)^3\implies 0 = 4(x + 7)^2(x - 7)^3
\\\\\\
0=(x+7)^2(x-7)^3\implies 
\begin{cases}
0=(x+7)^7\\
\qquad 0=(x+7)(x+7)\\
\qquad -7=x\\
\qquad -7=x\\
----------\\
0=(x-7)^3\\
\qquad 0=(x-7)(x-7)(x-7)\\
\qquad 7=x\\
\qquad 7=x\\
\qquad 7=x
\end{cases}$

the -7 is found there twice, so it has a multiplicity of 2
the +7 is there thrice, so it has multiplicity of 3

7 0

3 years ago

Who ever answers this will get 20 points and a 5 star rating

Artist 52 [7]

Answer:

its B

Step-by-step explanation:

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3 years ago

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I need help with number 4 plz answer it

Nataly_w [17]

Answer is 10 c brianliest is appreciated

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3 years ago

What is the absolute value of -62/3

Firlakuza [10]

Answer:

Step-by-step explanation:

The absolute value is 62/3

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