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3 years ago

3(7 + 4)2 − 14 ÷ 7. i need help and the 2 is squared

Mathematics

2 answers:

olga2289 [7]3 years ago

8 0

(this answer has been removed)

lorasvet [3.4K]3 years ago

3 0

Answer:

361

Step-by-step explanation:

To solve this you need to use the Order of Operations or PEMDAS.

The Order of Operations is Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.(PEMDAS)

So first you need to solve what's in the parentheses which is 7 + 4, this equals 11.

Then rewrite the problem as 3*11^2 - 14/7

Next you need to solve the exponents which is 11 squared. So 11 squared equals 121.

3*121 - 14/7

Now you need to multiply 3 by 121 since multiplication comes next in the order of operations. So 3*121 = 363

363 - 14/7, Next you need to divide 14 by 7 which is 2.

363 - 2, 363 subtracted by 2 is 361

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What is the product (4s+2)(5s^2+10s+3)

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anzhelika [568]

Answer:

$c + d = 3$

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2 years ago

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3 years ago

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Sherry claims that the expression 1/x will always be equivalent to a repeating decimal whenever x is an odd number greater than

fomenos

Answer:

The correct options are :

b. 5

e. 25

Step-by-step explanation:

The question is incomplete. The missing part is :

'' Which of these values will prove Sherry's claim is false :

a. 3

b. 5

c. 7

d. 11

e. 25 ''

One way to prove that Sherry's claim is false is finding one odd number greater than 1 that when we replace it in the denominator of the expression $\frac{1}{x}$ the result isn't equivalent to a repeating decimal.

Let's analyze each option :

a. 3

3 is an odd number greater than 1 ⇒ If we replace in the expression $\frac{1}{x}$ ⇒

$\frac{1}{3}$ ≅ 0.3333 (repeating decimal)

The option a. 3 won't prove that Sherry's claim is false.

b. 5

5 is an odd number greater than 1 ⇒ If we replace in the expression $\frac{1}{x}$ ⇒

$\frac{1}{5}=0.2$

The result isn't a repeating decimal.

The option b. 5 will prove that Sherry's claim is false.

c. 7

7 is an odd number greater than 1 ⇒ If we replace in the expression $\frac{1}{x}$ ⇒

$\frac{1}{7}$ ≅ 0.1428 (repeating decimal)

The option c. 7 won't prove that Sherry's claim is false.

d. 11

11 is an odd number greater than 1 ⇒ If we replace in the expression $\frac{1}{x}$ ⇒

$\frac{1}{11}$ ≅ 0.0909 (repeating decimal)

The option d. 11 won't prove that Sherry's claim is false.

e. 25

25 is an odd number greater than 1 ⇒ If we replace in the expression $\frac{1}{x}$ ⇒

$\frac{1}{25}$ ≅ 0.04

The result isn't a repeating decimal

The option e. 25 will prove that Sherry's claim is false.

3 0

3 years ago