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yKpoI14uk [10]
3 years ago
10

Louisa Hight 7 miles of a 21 mile trail what percent of the trail did she hike

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0
It is 35% because you need to divide 21 out of 100 then multiply the answer you get by 7
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Here is a list of numbers:<br> 7.3, 4.2, 7.3, 6.7, 4.2, 9.3, 1.2 ,1.1 ,6.4 ,8<br> State the median.
morpeh [17]
First order the numbers then cross out the numbers till in the middle the numbers 6.4 and 6.7 add then divide by two to get the middle and the median
13.1/2 =6.55

Answer:6.55

1.1
1.2
4.2
4.2
6.4
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6 0
3 years ago
Use the parabola tool to graph the quadratic function y=-1? - 2.0 +8
Andreas93 [3]

Answer:

see explanation

Step-by-step explanation:

I don't have graphing facilities but can give you the vertex and 1 other point.

Given a parabola in standard form

y = ax² + bx + c ( a ≠ 0 )

Then the x- coordinate of the vertex is

x = - \frac{b}{2a}

y = - x² - 2x + 8 ← is in standard form

with a = - 1 and b = - 2 , then

x = - \frac{-2}{-2} = - 1

Substitute x = - 1 into the equation for corresponding value of y

y = - (- 1)² - 2(- 1) + 8 = - 1 + 2 + 8 = 9

vertex = (- 1, 9 )

To obtain another point substitute any value for x into the equation

x = 0 : y = 0 - 0 + 8 , then (0, 8 ) is a point on the graph

x = 2 : y = - (2)² - 2(2) + 8 = - 4 - 4 + 8 = 0  then (2, 0 ) is a point on the graph

3 0
3 years ago
The height h of a thrown object as a function of horizontal distance d that it has traveled is a quadratic function. An object i
omeli [17]

Answer:

  h(d) = (17/3249)(-d² +114d)

Step-by-step explanation:

For this purpose, it is convenient to translate and scale a quadratic parent function so it has the desired characteristics. We can start with the function ...

  f(x) = 1 -x² . . . . . . . has zeros at x = ±1 and a vertex at (0, 1)

We want to horizontally expand this function by a factor of 57, so we can replace x by x/57. We want to vertically scale it by a factor of 17, so the vertex is at (0, 17). Finally, we want to translate the function 57 m to the right, which requires replacing x with x-57. After these transformations, we have ...

  f(x) = 17(1 -((x-57)/57)²) = (17/3249)(-x²+114x)

Using the appropriate function name and variable, we have ...

  h(d) = (17/3249)(-d² +114d)

5 0
3 years ago
What is 778 x 8 please answer
nikdorinn [45]

Answer:

6224

Step-by-step explanation:

Just multiply the two subjects.

Hope this helps :)

6 0
3 years ago
Read 2 more answers
What is the 3 equivalent fractions for <br> 0.75
Phoenix [80]

The three fractions that are all equivalent to 0.75 are . . .

75/100

15/20

3/4

6/8

12/16

72/96

111/148

114/152

330/440

729/972


6 0
3 years ago
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