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3 years ago

Which expression represents "3 more than twice a number"? Choices: 2n−3 3−2n 2n+3 2+n+3

Mathematics

2 answers:

Licemer1 [7]3 years ago

8 0

Answer:

2n+3

Step-by-step explanation:

I took the test online in K12 and when I reviewed it said that 2n+3 is the correct answer.

Alekssandra [29.7K]3 years ago

5 0

2n+3

i have to make word count so dont mind this lol... ehfilerflaeiurbgfiluq3filueiulsailflibs jkkbfbefvbif efieriebr efivbiefbfe ibeivbuoef

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3 years ago

What is the approximate value of b, rounded to the nearest tenth?

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we know that

m∠ZWY=m∠WXY --------> given problem

In the right triangle ZWY

$tan\ ZWY=\frac{ZY}{YW}=\frac{5}{6}$

In the right triangle XWY

$tan\ WXY=\frac{WY}{XY}=\frac{6}{a}$

$\frac{6}{a} =\frac{5}{6} \\ \\5*a=6*6 \\ \\a=\frac{36}{5}=7.2\ units$

Find the value of b

Applying the Pythagorean Theorem

In the right triangle XWY

$b^{2}=6^{2}+a^{2} \\b^{2}=6^{2}+7.2^{2}\\b^{2}=87.84\\ b= 9.4\ units$

therefore

the answer is the option

D) 9.4 units

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