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3 years ago

16=2x+3x+1 Solve for X

Mathematics

2 answers:

stiks02 [169]3 years ago

7 0

The answer is 3

5x = 16-1
5x = 15
x = 3

Nat2105 [25]3 years ago

4 0

Answer:

x = 3

Step-by-step explanation:

1. combine like terms. 16 = 5x + 1

2. subtract. 15 = 5x

3. divide. 15/5 = x

4. simplify. 3 = x

Brainliest welcome

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Civil an airport, a factory, and a shopping center are at the vertices of a right triangle formed by three highways. the airport

vekshin1

Answer:

<em>The shortest possible length for the service road is 2.88 miles.</em>

Step-by-step explanation:

According to the below diagram, $A, B$ and $C$ are the positions of airport, shopping center and factory respectively.

Given that, $AB= 3.6 miles, BC= 4.8 miles$ and $AC= 6.0 miles$

In right triangle $ABC$

$tan(\angle ACB)=\frac{AB}{BC} \\ \\ tan(\angle ACB)= \frac{3.6}{4.8}=0.75\\ \\ \angle ACB= tan^-^1(0.75)=36.8698.... degree$

The shortest possible length for the service road from the shopping center to the highway that connects the airport and factory is $BD$ .

That means, $\triangle BCD$ is also a right triangle in which $\angle BDC=90\°$ , Hypotenuse $(BC)= 4.8$ miles and $BD$ is the opposite side in respect of $\angle DCB$ or $\angle ACB$ .

Now in right triangle $BCD$

$Sin(\angle ACB)=\frac{BD}{BC}\\ \\ Sin(36.8698...)=\frac{BD}{4.8}\\ \\ BD=4.8*Sin(36.8698...)=2.88$

So, the shortest possible length for the service road is 2.88 miles.

4 0

4 years ago

How do i solve it and round to the nearest tenth of a percent

Zepler [3.9K]

Divide 42 by 89
now the answer is 0.4719... but to get a percent multiply by 100
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4 years ago

Find the area and the circumference of a circle with diameter 4 ft

GenaCL600 [577]

Answer:

Circumference is 12.56

Area is 6.28

Step-by-step explanation:

4×3.14=12.56

2×3.14=6.28

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3 years ago