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3 years ago

Includes the graph.

Mathematics

1 answer:

Anarel [89]3 years ago

5 0

Answer:

They are proportional, for every day that passes the number of bottles increases by 4

Step-by-step explanation:

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Select the two values of x that are roots of this equation.<br> X2 + 2x - 5 = 0

LenaWriter [7]

Answer:

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

Step-by-step explanation:

$x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

Ignore the A before the ±. It wouldn't let me type it correctly.

x² + 2x - 5 = 0

a = 1

b = 2

c = - 5

$x=\frac{-2±\sqrt{2^{2}-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4-4((1)(-5)) } }{2(1)}$

$x=\frac{-2±\sqrt{4+20 } }{2(1)}$

$x=\frac{-2±\sqrt{24 } }{2}$

$x=\frac{-2±\sqrt{(2)(12) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(6) } }{2}$

$x=\frac{-2±\sqrt{(2)(2)(2)(3) } }{2}$

$x=\frac{-2±(\sqrt{2} )(\sqrt{2})(\sqrt{(2)(3) )} }{2}$

$x=\frac{-2±2\sqrt{6 } }{2}$

Two separate equations

$x=\frac{-2+2\sqrt{6 } }{2}$

$x=\frac{-2-2\sqrt{6 } }{2}$

$x=-1+\sqrt{6 }$

$x=-1-\sqrt{6 }$

7 0

3 years ago

Graph the solution set: x-2y>4 <br> (with explaining please)

KatRina [158]

the Answer is x>2y+4

x−2y>4

Step 1: Add 2y to both sides.

x−2y+2y>4+2y

Answer: x>2y+4

7 0

3 years ago

I need to know the answers of 10, 12, and 14

k0ka [10]

Answer:

10: 2

12: 0

14: 24

4 0

3 years ago

Hanz’s class had a goal to collect 250 cans of food for the school food drive. They collected 290 cans. What percent of their go

soldi70 [24.7K]

Given:

Goal = 250 cans

Number of collected cans = 290

To find:

The percent of their goal they achieved.

Solution:

The percent of their goal they achieved is:

$\text{Required percent}=\dfrac{\text{Number of collected cans}}{\text{Goal}}\times 100$

$\text{Required percent}=\dfrac{290}{250}\times 100$

$\text{Required percent}=\dfrac{29}{25}\times 100$

$\text{Required percent}=29\times 4$

$\text{Required percent}=116$

Therefore, they achieved 116% of their goal.

3 0

3 years ago

Your company offers warranty coverage for MP3 players. The policy provides for the replacement of MP3 players that fail within 3

Finger [1]

Answer:

181 MP3 players

Step-by-step explanation:

Given data:

Replacement of MP3 that fail within 3 years

expected lifetime of MP3 = 5 years

number of MP3 players purchased = 1000

number of MP3 players replaced in the first year = ?

To determine the number of MP3 replaced in the first year we will employ this formula:

$E(To) = \frac{1}{u} = e_{x} ^{0} =\int\limits^a_0 {po} \, dt$

a = ∞

since the given problem is an exponential distribution

1/u = 5 hence u = 0.2

next we will determine the number of MP3's to fail in its first year of purchase

qo = failure

po = success

number of purchase = 1000

attached below is the remaining part of the solution

7 0

3 years ago

Includes the graph.​

Includes the graph.