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3 years ago

Which scenario best matches the inequality x greater than 3 ?

Mathematics

1 answer:

iris [78.8K]3 years ago

5 0

Answer:

Step-by-step explanation:

i got an 100 on the test :)

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What's the area of the room in this diagram?

GenaCL600 [577]

I believe it should be B.156 square feet because in order to find the area of a square, you gotta multiply 13ft and 12ft. Once that is solved your answer should be 156.

3 0

4 years ago

What are the measurements of the two angles in the sketch?

Setler79 [48]

Answer:

Step-by-step explanation:

So you got (4x-15) and x

We know it will equal 180 total so you will do

(4x-15)+x=180

Add 15 to each side

4x+x=195

5x=195

Divide each side by 5

x=39

So if X equals 39, your only possible answer is A

6 0

4 years ago

Which right rectangular prism does not have a volume of 48 cubic centimeters?

borishaifa [10]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The answer to this equation

12345 [234]

Answer:

x=3

Step-by-step explanation:

We are given the equation

$log5x=log(2x+9)$

This can be rewritten as

$log5x-log(2x+9)=0$

Now using the quotient rule for logarithms we can combine these two

$log(\frac{5x}{2x+9} )=0$

Next we can remove the log by using an inverse operation

$10^{log(\frac{5x}{2x+9} )} =10^0\\\\\frac{5x}{2x+9}=1$

Now we can solve for x

$\frac{5x}{2x+9}=1\\\\5x=2x+9\\\\3x=9\\\\x=3$

4 0

4 years ago

Initially 100 milligrams of a radioactive substance was present. After 8 hours the mass had decreased by 2%. If the rate of deca

4vir4ik [10]

Answer:

The half life of the radioactive substance is 277 hours.

Step-by-step explanation:

initial mass, No = 100 mg

mass decayed = 2% = 2 mg

Mass remained , N = 98 mg

time, t = 8 hours

Let the half life is T.

Use the equation of radioactivity

$N = No\times e^{\frac{-0.693 t}{T}}\\\\98 = 100 \times e^{\frac{-0.693\times 8}{T}}\\\\0.98 = e^{\frac{-5.54}{T}}\\\\ln 0.98 = -\frac{5.54}{T}\\\\-0.02= -\frac{5.54}{T}\\\\T = 277 hours$

5 0

3 years ago