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olya-2409 [2.1K]
3 years ago
11

Evaluate 3(x-1) + 2 when x= 5. A. 18 B. 16 C. 4 D. 14

Mathematics
2 answers:
zavuch27 [327]3 years ago
8 0

Answer:

the answer is D

Step-by-step explanation:

the answer is 14 or D

brainly would be epic

choli [55]3 years ago
3 0
3(5-1) + 2
3(4) + 2
12+2
14
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Evaluate the expression using a calculator:
tester [92]

The value of the expression is 0.0265. Using exponents and power rules, the required value is calculated.

<h3>What are the exponent and power rules?</h3>

The important exponent and power rules are:

  • a⁻ⁿ = 1/aⁿ; negative exponent
  • (ab)ⁿ = aⁿ × bⁿ; power of a product rule
  • aⁿ × aˣ = aⁿ⁺ˣ; multiplication rule
  • aⁿ/aˣ = aⁿ⁻ˣ; division rule
  • a^{\frac{x}{y} } = \sqrt[y]{a^x}; fractional exponent

<h3>Calculation:</h3>

The given expression is 126^{-3/4}

Using calculator: 126^{-3/4} = 0.0265

Applying the exponent rule for evaluating the given expression:

126^{-3/4}

Applying the negative power rule;

I.e., a⁻ⁿ = 1/aⁿ

⇒ 126^{-3/4}=\frac{1}{126^{3/4}}

Applying fractional exponent rule;

I.e., a^{\frac{x}{y} } = \sqrt[y]{a^x}

⇒ \frac{1}{126^{3/4}}=\frac{1}{\sqrt[4]{126^3} }

⇒ 1/\sqrt[4]{2000376}

⇒ 1/37.6077

⇒ 0.0265

Therefore, the value of the given expression is 0.0265.

Learn more about exponent rules here:

brainly.com/question/11975096

#SPJ1

4 0
9 months ago
A quiz has 1 true-false question and 2 multiple choice questions that each have 4 answers what is the probability that someone q
Anit [1.1K]
1 true and false question = 1 / 2 chances
2 multiple choice question = 2/8
1/2 + 2/8 =
4/8 + 2/8 = 6/8.

6/8 = 3/4

you have a 75% chance of getting all 3 answers correct and getting a 100% on the quiz

hope this helps :D


8 0
2 years ago
Use the conditional statement to answer the question.
anygoal [31]
The statement is true, but the inverse is false.
4 0
3 years ago
What is the answer to 336 is 48% of what number?
Doss [256]
Is means =
'of' means multiply
percent means parts out of 100 so 48%=48/100=4.8/10=0.48/1=0.48
 so it is
336=0.48 times something
divide both sides by 0.48
700=something
the numbe ris 700
7 0
3 years ago
Least common multiple of 6 and 42
4vir4ik [10]
7 is the leases common I’m pretty sure
4 0
3 years ago
Read 2 more answers
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