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Ilia_Sergeevich [38]

3 years ago

9

eamon is arranging 39 books on 3 shelves. if he puts the same numbers of books on each shelf, how many books will there be on ea

ch shelf?

1 answer:

Leona [35]3 years ago

7 0

Answer:

13 books on each shelf.

Step-by-step explanation:

39 divided by 3

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If a(x + 1) + b(x − 1) − 2 = 0 for all real x, then a =

jek_recluse [69]

Answer:

D) 1

Step-by-step explanation:

using the distributive property we have ax+a+bx-b-2=0. because the equation is true for all real x, ax=-bx. this means a-b-2=0 and a=-b. a-b-2=0 becomes a=b+2. then we substitute a for -b and get -b=b+2 which becomes 2b=-2 so b=-1. since a=-b, a=1

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20 POINTS! HELP PLEASE!

nevsk [136]

Answer:

False

Step-by-step explanation:

i did this question and got it right

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A building may fail by excessive settlement of the foundation or by collapse of the superstructure. Over the life of the buildin

patriot [66]

Answer:

0.1536

Step-by-step explanation:

The computation of probability that the building failure will occur over its life is shown below:-

P(building failure) is

$P(ES \cup C)\\\\ = P(ES) + P(C) - P(ES\cap C)\\\\ = P(ES) + P(C) - P(ES) P (C | ES)\\\\ = 0.12 + 0.06 - 0.12 \times 0.22$

now we will solve the above equation

= 0.18 - 0.0264

After solving the above equation we will get

= 0.1536

Therefore for computing the probability that the building failure will occur over its life we simply applied the above formula.

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3 years ago

Solve z ÷ (–7) = –1.<br> A. 7 B. -7 C. 1/7 D. 6

aalyn [17]

Answer:

A. 7

Step-by-step explanation:

z ÷ (–7) = –1.

multiply each side by -7

z ÷ (–7)*-7 = –1.*-7

z = 7

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Multiply (2x^3 + 1)(5x^2 +4) and write your result in simplest form.

tatyana61 [14]

(2x^3)*(5x^2)+(2x^3)*(4)+(1)*(5x^2)+(1)*(4)
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