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lyudmila [28]
3 years ago
5

Pls help have to turn in soon

Mathematics
1 answer:
hjlf3 years ago
3 0

Answer:

The one you already have selected along with

428

Step-by-step explanation:

anything to the 0 power is itself

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On a trip from Buffalo, New York, to St. Augustine, Florida, a family wants to travel at least 250 miles in the first 5 hours of
sergeinik [125]
Speed = distance / time
speed = 250/5
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8 0
4 years ago
What is an approximate equation passing through the lines (2,4) and (3,7)
babymother [125]

First, let's find what m is, the slope of the line...

m= y2-y1/x2-x1

m=7-4/3-2 You end up with 3/1 or 3 as your slope.

so far you have... y=3x+b

<span>Take (2,4). y=mx+b or 4=3*2+b, solving for b: b=4-(3)(2). b=-2.</span>

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<span>y = 3x-2</span>

4 0
4 years ago
Identify the reflection rule in the given figure.
saul85 [17]

Answer: A) Reflection along the line y = -1

===========================================================

Explanation:

Point A is at (1,5). Point A' is at (1,-7).

Apply the midpoint formula to find the center of these two points.

You should get (1,-1) as that midpoint.

Follow these steps for B(-1,3) and B'(-1,-5) to get the midpoint (-1,-1)

Those midpoints we found are located on the mirror line. We only need two such points to plot it. Drawing a line through (1,-1) and (-1,-1) graphs the equation y = -1. This is the horizontal line through -1 on the y axis.

7 0
3 years ago
Which decimal is equivalent to -
lord [1]

Answer:

Do you have a picture of the question?

6 0
3 years ago
How many L of A 90% saline solution must be mixed with 4 L of a 50% saline solution to make a 74% solution ?
insens350 [35]

Answer:

6 L

Step-by-step explanation:

Given two solutions:

1st solution is 90% saline solution. Let the volume of this solution be x litres.

2nd solution is 50% saline solution. Volume of this solution = 4 L

Resultant solution is 74% saline.

To find:

The volume of 1st solution = ?

Solution:

Total volume of the 74% saline mixture = (4+x) Litres

We can write equation here, as per the percentage of saline in the mixtures.

90% of x L + 50% of 4 L = 74% of (x+4)

\Rightarrow \dfrac{90x}{100} + \dfrac{50}{100}\times 4 = \dfrac{74}{100}\times (x+4)\\\Rightarrow 90x + 200 = 74x+296\\\Rightarrow 90x-74x = 296-200\\\Rightarrow 16x = 96\\\Rightarrow x = \bold{6\ L}

Therefore, the volume must be <em>6 L</em>.

8 0
3 years ago
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