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3 years ago

The product of two consecutive integers is 72. The equation x(x + 1) = 72 represents the situation, where x

Mathematics

2 answers:

amm18123 years ago

5 0

Answer:

x^2 + x - 72 = 0

Step-by-step explanation:

x(x + 1) = 72 should be re-written in the standard form of a quadratic:

x^2 + x - 72 = 0. Same as the first answer choice.

olchik [2.2K]3 years ago

5 0

Answer:

x^2+x-72=0

Step-by-step explanation:

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Find the sum of the sequence. 39 +40 +41 +42 + ... + 138

Elis [28]

Answer:

Sol1 you can use "first(first+last)/2" is 138(138+1)/2 - 38(38+1)/2 = 8850

Sol2 or you can look this 39+40+41+....+100+(100+1)+(100+2)+....+(100+38) = 1+2+3+.....+99+100+100(38) = 5050+3800 =8850

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3 years ago

What goes in the thousands place???

Olin [163]

Step-by-step explanation:

8 goes in the place of thousands

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3 years ago

Se the FOIL method to evaluate the expression: (5+2)(4-5)

DaniilM [7]

The FOIL method is a method of expanding two given brackets by following the required steps. Thus using the FOIL method, the required answer is: -7

Expansion of brackets may be done using different methods, but these methods would give the same answer. Some methods that can be used are the binomial expansion method, FOIL method, etc.

The FOIL method is a shortened form of the steps required for the process. These required steps are First, Outside, Inside, and last.

Thus to expand the given brackets in the question, we have;

(5+2)(4-5) = 5(4 - 5) + 2(4 - 5)

= 20 - 25 + 8 - 10

= 28 - 35

(5+2)(4-5) = -7

Thus using the FOIL method, the answer to the question is -7.

Quick check: (5+2)(4-5) = (7)(-1)

= -7

For more clarifications on expansion of brackets using the FOIL method, visit: brainly.com/question/1592629

#SPJ 1

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2 years ago

What is 30/72 in simplest form?

AleksandrR [38]

Answer:

30/72 is 0,4166666666666

15/36

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2 years ago

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Rachel has taken 6 tests so far and has received scores of 83%, 92%, 79%, 88%, 89%, and 95%. What must Rachel receive on her sev

Vinil7 [7]

Let the score on her seventh test be "x".

SO,

$\frac{83+92+79+88+89+95+x}{7} =90\\\\ \frac{526+x}{7}=90\\\\ 526+x=630\\\\x=630-526\\\\ \boxed{x=104}$

∴ He must get 104% on his seventh test to get an average score of 90%

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3 years ago

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