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Rzqust [24]
3 years ago
10

Simplify by using order of operations 3x-4+20=55

Mathematics
1 answer:
Lina20 [59]3 years ago
7 0

Answer:

x= 13

Step-by-step explanation:

3x-4+20= 55

combine like terms:

3x+16= 55

subtract 16 from both sides:

3x = 39

divide 3 to both sides:

x= 13

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Leastest to greatest 0.5,3/16,0.75,5/48
Mamont248 [21]
Least to greatest : 5/48 (0.10), 3/16 (0.18), 0.5, 0.75
4 0
3 years ago
Given the function g(x)=x^2+2x-5g(x)=x
dimaraw [331]

We have been given a function g(x)=x^2+2x-5. We are asked to find average rate of change of the function over the interval -6\leq x\leq 1.

We will use average rate of change formula to solve our given problem.

\text{Average rate of change}=\frac{f(b)-f(a)}{b-a}

For our given function b=1 and a=-6.

\text{Average rate of change}=\frac{g(1)-g(-6)}{1-(-6)}

g(1)=1^2+2(1)-5

g(1)=1+2-5

g(1)=-2

g(-6)=(-6)^2+2(-6)-5

g(-6)=36-12-5

g(-6)=19

\text{Average rate of change}=\frac{-2-19}{1+6}

\text{Average rate of change}=\frac{-21}{7}

\text{Average rate of change}=-3

Therefore, the average rate of change of the function is -3 over the interval -6\leq x\leq 1.

4 0
4 years ago
Archeologists use carbon-14 which has a half-life of 5730 years to determine the age of the artifact in carbon dating. How much
Musya8 [376]

Answer:

50 percent

5,730 years; The graph shows that 50 percent of the carbon-14 atoms have decayed after 5,730 years, so 5,730 is the half-life of carbon-14. 2. 12.5% 3.

Radiocarbon dating involves determining the age of an ancient fossil or specimen by measuring its carbon-14 content. ... Green plants absorb the carbon dioxide, so the population of carbon-14 molecules is continually replenished until the plant dies. Carbon-14 is also passed onto the animals that eat those plants.

3 0
3 years ago
Evaluate the function below for x = 2.<br>f (x) = 4x^3 - x^2 - 5x+7<br>​
nexus9112 [7]

Answer: f(2)=25

Step-by-step explanation:

You know that the given function is:

f(x)=4x^3-x^2-5x+7

You know that you must evaluate this function for x=2.

Then, to evaluate the function for x=2, you need to substitute this value into the given function and simplify it.

Therefore, you get:

f(x)=4x^3-x^2-5x+7\\f(2)=4(2)^3-(2)^2-5(2)+7\\f(2)=4(8)-(4)-10+7\\f(2)=32-4-10+7\\f(2)=25

So, the answer is: f(2)=25

8 0
3 years ago
Whats 78 × 4 × 56 × 7 ×2 <br><br><br> This is random just for fun:)
Dafna11 [192]

Answer: 244608

Step-by-step explanation: Multiply all of the numbers!

8 0
3 years ago
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