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LenKa [72]
3 years ago
12

6sqrt20 + 8sqrt5 - 5sqrt45

Mathematics
1 answer:
marta [7]3 years ago
4 0

Answer:

11.1803398875

Step-by-step explanation:

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Find the equation of a line that passes through the point (4,15) and is perpendicular to the equation below.
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The answer is D because to find the slope of a line that is perpendicular to another, you have to find the opposite reciprocal. so here the slope would be -1/4. now, take that slope and put it into an equation. like the following:
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now to find b you must insert the points into the equation (plug in 4 for x, and 15 for y).
15 =  \frac{ - 1}{4} (4) + b
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The newspaper in Haventown had a circulation of 80,000 papers in the year 2000. In 2010, the circulation was 50,000. With x = 0
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A Point-Slope equation of a straight line has this form: y - y1 = m(x-x1)

We can recognize any points of the graph.
(0,80000) ; (10,50000)

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Over which interval on the x-axis is there a negative
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4 I’m not that sure though
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Vlad1618 [11]

Answer:

1. it is not a direct variation because the value <em>k</em> is not kept throughout the ordered pairs

2. -a^5 - 2a³ + 2a², leading coefficient is -1

Step-by-step explanation:

1. to find the direct variation, we will use y/x = k with k representing our constant throughout the chart. if every value is equal to k, it is a direct variation

for this problem we will assume that the cup sizes are x and the cost is y

so the ordered pairs are (8, 0.90), (12, 1.35), (16, 1.80), and (24, 2.25)

.90/8 = 0.1125 <-- this is our <em>k</em> value for which every result has to be equal to

1.35/12 = 0.1125

1.80/12 = 0.1125

2.25/24 = 0.09375

since the value <em>k</em> was not kept throughout the ordered pairs, this is not a direct variation

2. the standard form of a polynomial is the exponents in descending order.

we have the following polynomial: 2a² - a^5 -2a³

to write it in standard form, we will go in descending order of the exponents. the largest exponent being first

-a^5 - 2a³ + 2a²

the leading coefficient of the polynomial is -1, as there is a negative sign in front of the newly formed polynomial

4 0
3 years ago
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