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SIZIF [17.4K]
3 years ago
7

Clara estimates that the length of a hiking trail is 5.75 km. She later learns that its actual length is 6.25 km. What is the pe

rcent error in Clara's estimate, to the nearest tenth of a percent?
Mathematics
1 answer:
Hunter-Best [27]3 years ago
8 0
Percent error : (approximate value - exact value) / exact value.....x 100

percent error : (5.75 - 6.25) / 6.25......ignore any negative signs
0.5 / 6.25 = 0.08.....x 100 = 8% error <==
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frutty [35]

Answer:

18

Step-by-step explanation:

f(x) = 2(1/3)^x

[x = -2]

f(-2) = 2(1/3)⁻²

= 2(9)

= 18

5 0
2 years ago
Simplify this expression
antiseptic1488 [7]

Answer:

2/(3x-2)²

Step-by-step explanation:

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6 0
3 years ago
PLEASE HELP! I NEED TO FINISH THIS IN 5 MINUTES!
andriy [413]

Answer: C

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve the equations below:
Lelu [443]
<h2><em><u>Answ</u></em><em><u>er</u></em><em><u>:</u></em><em><u>-</u></em></h2>

<h3>1.) 3x + 2 = 15</h3>

➪ 3x = 15 - 2

➪ 3x = 13

★ \large\pink{x = \sf{\dfrac{13}{3}}}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>2.) 5x - 8 = 52</h3>

➪ 5x = 52 + 8

➪ 5x = 60

➪ x = \sf\dfrac{60}{5}

★ \large\pink{x = 12}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>3.) 2(x+1) = 14</h3>

➪ 2x + 2 = 14

➪ 2x = 14 - 2

➪ 2x = 12

➪ x = \sf\dfrac{12}{2}

★ \large\pink{x = 6}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>4.) 1/4 x + 6 = 12</h3>

➪ \sf\dfrac{1}{4} \times x = 12 - 6

➪ \sf\dfrac{1}{4} \times x = 6

➪ \sf 1 \times x = 6 \times 4

★ \large\pink{x = 24}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>5.) 1/5 + 2y = 2/5</h3>

➪ \sf 2y = \dfrac{2}{5} - \dfrac{1}{5}

➪ \sf 2y = \dfrac{2-1}{5}

➪ \sf 2y = \dfrac{1}{5}

➪ \sf y = \dfrac{1}{5 \times 2}

★ \large\pink{y = \dfrac{1}{10}}

5 0
3 years ago
DOES THIS SET OF ORDERED PAIRS<br> REPRESENT A FUNCTION?<br> {(2,4),(2,5), (2,6), (2,7) }
vlabodo [156]
Answer:
No, this set of ordered pairs does not represent a function.

Explanation:
Functions have one y-value for a given x-value.

Ordered pairs are written (x, y).

In this set, when x=2, it has four y-values (4, 5, 6 and 7), so it cannot be a function.
7 0
2 years ago
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