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2 years ago

Write four different equations that have –3 as the solution.

Mathematics

2 answers:

vodomira [7]2 years ago

8 0

1 + -4

2 + -5

3 + -6

4 + -7

Scorpion4ik [409]2 years ago

8 0

5 + -8

6 + -9

7 + -10

8 + -11

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( 8k + 9) - (6k + 5)

Katena32 [7]

Answer:

The expression is 2k + 4.

Step-by-step explanation:

You have to collect like-terms :

(8k + 9) - (6k + 5)

= 8k + 9 - 6k - 5

= 2k + 4

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3 years ago

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Nina graphs the function y = ⌊x⌋ to learn the properties of the parent floor function. What is the value of y when x =5.7?

Studentka2010 [4]

I think the answer is 5

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3 years ago

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Directions - Identify the key components, create an exponential equation, then answer the questions.

Tamiku [17]

Answer:

Directions - Identify the key components, create an exponential equation, then answer the questions.

Exponential Form: y=a\cdot b^{x},\ a\ is\ the\ \textit{starting}\ \textit{value},\ b\ is\ the\ base\ (rate).\y=a⋅b

, a is the starting value, b is the base (rate).

In a small town, the stray dog population is rapidly increasing. there are currently 15 stray dogs, and it is estimated that the population will triple every year. How many dogs will there be after 1 year? 2 years? 3 years?

1) a = 15

4) Dogs after 1 years = 45

2) b = 3

5) Dogs after 2 years = 135

3) Equation:

y= 15 ×3x

6) Dogs after 3 years =

405

Step-by-step explanation:

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3 years ago

Medicare Hospital Insurance The average yearly Medicare Hospital Insurance benefit per person was $4064 in a recent year. Suppos

horrorfan [7]

Answer:

The answer is "0.0764"

Step-by-step explanation:

Please find the complete question in the attached file.

$\to \mu = \$ \ 4064\\\\\to \sigma = \$ \ 460 \\\\\to \sigma \bar{x} = \frac{\sigma}{\sqrt{n}}\\\\$

$= \frac{460}{\sqrt{21}}\\\\ = \frac{460}{4.58257569}\\\\=100.3802$

$\to P(\bar{x}< \$ \ 3920) = \frac{P((\bar{x} - \mu \bar{x})}{\frac{\sigma \bar{x}$

$\to P(z < -1.43) = 0.0764 \\\\\to P(\bar{x}< \$ \ 3920) = 0.0764\\\\$

7 0

3 years ago

a woman buys a plot of land of area 0.36hectares she pays $8.50 per square meter for the land what is it's total cost

Elena L [17]

Answer:

$30,600

Step-by-step explanation:

1 hectare = 10,000 $m^2$

0.36 hectare = 0.36 * 10000 $m^2$ = 3600 $m^2$

She pays $8.50 per square meter. Thus, the total cost is:

$3600 * 8.50 = \$30,600$

Answer: $30,600

3 0

3 years ago