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Roman55 [17]
2 years ago
8

Henry measured a line to be 7.8 inches long. If the actual length of the line is 7.4 inches, then what was the percent error of

the measurement, to the nearest tenth of a percent?
Mathematics
1 answer:
Margarita [4]2 years ago
3 0
The percent error of the measurement is 5.4%
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Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated
Illusion [34]

Answer:

x=-2,0,3

Step-by-step explanation:

We have been given a function f(x)=15x^3-15x^2-90x. We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

15x^3-15x^2-90x=0

Now, we will factor our equation. We can see that all terms of our equation a common factor that is 15x.

Upon factoring out 15x, we will get:

15x(x^2-x-6)=0

Now, we will split the middle term of our equation into parts, whose sum is -1 and whose product is -6. We know such two numbers are -3\text{ and }2.

15x(x^2-3x+2x-6)=0

15x((x^2-3x)+(2x-6))=0

15x(x(x-3)+2(x-3))=0

15x(x-3)(x+2)=0

Now, we will use zero product property to find the zeros of our given function.

15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0

15x=0\text{ (or) }x-3=0\text{ (or) }x+2=0

\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0

x=0\text{ (or) }x=3\text{ (or) }x=-2

Therefore, the zeros of our given function are x=-2,0,3.

7 0
3 years ago
What are 2 fractions closer to 1 than to 0?
solniwko [45]
1 and 1/2, 1 and 1/3
3 0
3 years ago
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**** HELP*****
Mademuasel [1]

Birmingham and Montgomery both have a state sales tax rate of 4 percent and a local tax rate of 6 percent – although the report notes that part of Birmingham lies in Shelby County, meaning the combined rate is only 9 percent in some parts of the city.



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3 years ago
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Find the slope of the line represented by the table of values
schepotkina [342]

Answer:

The slope》<em><u>-5</u></em>

Step-by-step explanation:

hope it helps

have a great day!!

3 0
3 years ago
3^8•3^-9 can you please help no work needed
netineya [11]
3^8 = <span>6561
3^9 = </span><span>19683
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quite a big number</span>
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3 years ago
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