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Thepotemich [5.8K]
3 years ago
7

Wendy kept track of the number of text messages she sent each day for three weeks. Drag and drop each number into the boxes to c

omplete the frequency table .

Mathematics
1 answer:
NeX [460]3 years ago
8 0

Answer:

0-9 = 4

10-19 = 3

20-29 = 9

30-39 = 5

Step-by-step explanation:

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One day is about 0.00274 years. How is this expressed in scientific notation?
Verdich [7]

Answer: C

Step-by-step explanation:

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3 years ago
The opposite of which number is closest to -5?<br> A) -8 <br> B) -7 <br> C) -6 <br> D) 7
Rina8888 [55]

the answer is 7 because all of the other numbers opposites aren't negative

6 0
3 years ago
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What is the equation of the quadratic graph with a focus of (3, 1) and a directrix of y = 5?
telo118 [61]

Answer:

f(x)=-\frac{1}{8}(x-3)^2+3

Step-by-step explanation:

We want to find the equation of the parabola with a focus of (3,1) and directrix y=5.

Considering the directrix, the quadratic graph must open downwards.


The equation of this parabola is given by the formula,

(x-h)^2=4p(y-k), where (h,k) is the vertex of the parabola.


The axis of this parabola meets the directrix at (3,5).

Since the vertex is the midpoint of the focus and the point of intersection of the axis of the parabola and the directrix,


h=\frac{3+3}{2}=3 and k=\frac{5+1}{2}=3.


The equation of the parabola now becomes,


(x-3)^2=4p(y-3).


Also |p| is the distance between the vertex and the directrix.


|p|=2


This implies that p=-2\:or\:2.


Since the parabola turns downwards,


p=-2.



Our equation now becomes,


(x-3)^2=4(-2)(y-3).


(x-3)^2=-8(y-3).


We make y the subject to get,

y=-\frac{1}{8}(x-3)^2+3).


This is the same as

f(x)=-\frac{1}{8}(x-3)^2+3).









4 0
3 years ago
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kozerog [31]

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Step-by-step explanation:

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6 0
3 years ago
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How many cups are in 4 liters? (1 liter = 1.06 quarts and 1 quart=4 cups)
Lynna [10]

Answer:

16.907

Step-by-step explanation:

7 0
3 years ago
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