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3 years ago

Solve for x . 173 = 88- x

Mathematics

2 answers:

son4ous [18]3 years ago

7 0

-85 is the correct answer

Len [333]3 years ago

4 0

The answer is -85, negative+nagative=positive

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Find the volume thank you

IgorC [24]

Answer:

the answer is: 27

Step-by-step explanation:

3 x 3 x 3 = 27

4 0

3 years ago

A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in living trees. How long ago, to th

maxonik [38]

Answer:

The artifact was made approximately 13,306 years ago

Step-by-step explanation:

The half-life of Carbon-14 = 5730 years

The formula for radioactive decay is given by the equation:

$N=N_0 e^{- \lambda t}\\where:\\N = Number\ of\ particles\ at\ time\ t\\N_0= Number\ of\ particles\ at\ time\ t_0\\\lambda = decay\ constant = \frac{In}{t_{1/2}} ; t_{1/2} = half-life\\t = time\ in\ years$

The amount of Carbon-14 left = 20% = 20/100 = 0.2

$\therefore \frac{N}{N_0} = 20 \% = 0.2$

$N=N_0 e^{- \lambda t}\\\\dividing\ both\ sides\ by\ N_0\\\frac{N}{N_0} = e^{- \lambda t}\\0.2 = e^{- \lambda t}\\taking\ natural\ logarithm\ of\ both\ sides\\In 0.2 = Ine^{- \lambda t}\\In0.2 = -\lambda \times t\\but\ \lambda = \frac{In2}{t_{1/2}} \\\therefore In0.2 = -\lambda \times t\\\\= In0.2 = - \frac{In2}{t_{1/2}} \times t\\where\ t_{1/2} = 5730\ years\\-1.6094 = - \frac{0.6931}{5730} \times t\\-1.6094 = - 0.00012095 \times t\\t = \frac{-1.6094}{-0.00012095} \\t = 13,306.32$

t ≈ 13,306 years

7 0

3 years ago

F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of h(f(g(2)))

Alinara [238K]

Answer:

- 27

Step-by-step explanation:

Evaluate from the ' inside out ' , that is

Evaluate g(2) then use this value to evaluate f(x) then use this value to evaluate h(x)

g(2) = 4(2)² - 9 = 4(4) - 9 = 16 - 9 = 7, then

f(7) = 7 + 7 = 14 , then

h(14) = - 2(14) + 1 = - 28 + 1 = - 27

6 0

3 years ago

The legend on a map states that 1 inch

ExtremeBDS [4]

Answer: 1350 miles

Step-by-step explanation:

Given that one inch is 450 miles. We can use a proportion to solve for miles at 3 inches.

$\frac{1in}{450mi } =\frac{3in}{x}$

x=450*3=1350 mi

4 0

3 years ago

Suppose an account pays 2.5% interest that is compounded annually. At the beginning of each year, $10,000 is deposited into the

mart [117]

Answer:

The answer is 75,474

Step-by-step explanation:

6 0

2 years ago