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3 years ago

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If the area of a park is exactly halfway between 2.4 and 2.5 acres, what is the area of the park? Explain. Please if you know th

is is please tell me right away! Thank you for your participation even though you got the answer wrong!

1 answer:

grandymaker [24]3 years ago

8 0

"If the area of a park is exactly halfway between 2.4 and 2.5 acres, what is the area of the park" its 2.45 acres.

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Send help please help :D

Svetllana [295]

Answer:

A) Slope =

$m = \frac{1}{4} x$

explanation:

Take 2 random points off the line, I used (4,1) & (8,2)

The formula to find the slope when given 2 points is

$m = \frac{rise}{run} = \frac{y2 - y1}{x2 - x1}$

so in this case x1 & y1 are assigned to (4,1)

4 = x1
1 = y1

and x2 & y2 are assigned to (8,2)

8 = x2
2 = y2

so substitute the numbers into the formula and solve !

$m= \frac{y2 - y1}{x2 - x1} = \frac{2 - 1}{8 - 4} = \frac{1}{4}$

this will result in the answer I got above!!

B) yes it does show a constant rate of change cause it's increasing in 1/4x intervals

C) just because you move the placement of a line on the graph doesn't mean it's going to effect the slope as long as the numbers on the axis don't change!!

5 0

3 years ago

Solve the inequality<br> -2(y+5)+22>12-2y

zhannawk [14.2K]

Answer:

There are no solutions

Step-by-step explanation:

Always remember to simplify both sides of the inequality.

$-2y+12>-2y+12$

Add 2y to both sides.

$-2y+12+2y>-2y+12+2y\\12>12$

Subtract 12 from both sides.

$12-12>12-12\\0>0$

7 0

3 years ago

. Among all the income tax forms filed in a certain year, the mean tax paid was $2000, and the standard deviation was $500. In a

Anarel [89]

Answer:

a) 0.8413

b) 0.6293

Step-by-step explanation:

Data provided:

Mean tax paid = $2000

Standard deviation = $500

Sample size, n = 625

n=625

Now,

a) P( average tax paid on the sample forms is greater than $1980)

⇒ P(X > 1980)

or

⇒ $P(\frac{(X-mean)}{\frac{s}{\sqrt n}})$

or

⇒ $P(\frac{(1980-2000)}{\frac{500}{\sqrt{625}}})$

or

⇒ P(Z > -1)

or

= 0.8413 (From standard normal table)

b) P(more than 60 of the sampled forms have a tax of greater than $3000)

given: p = 10% = 0.1

Now, by using CLT

mean = n × p

= 625 × 0.1

= 62.5

Standard deviation, s = $\sqrt{n\times p\times(1-p)}$

= $\sqrt{625\times0.1\times(1-0.1)}$

= 7.5

Thus,

P(X > 60)

= $P(\frac{(X-mean)}{s} > \frac{(60-62.5)}{7.5})$

or

= P(Z > -0.33)

= 0.6293 (From standard normal table)

4 0

3 years ago

PLEASE HELP! WILL GIVE BRAINLIEST

Amiraneli [1.4K]

Answer:

AC and FD

AE and BD

CE and BF

Step-by-step explanation:

considering the sizes they are, the center triangle's segments should be parallel to the opposite sides on the larger one

5 0

2 years ago

What is the equation of the line that passes through (-2, 2) and (1,-4)?

Reil [10]

Answer:

$Equation \ of \ the \ line => (y -y_{2}) =m(x -x_{2} )$

$slope, m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} } =\frac{-4-2}{1--2} = \frac{-6}{3} = -2$

Equation the line passing through (-2, 2) and ( 1, -4)

$(y -- 4) = -2(x -1)\\\\(y +4) = -2x + 2\\\\y = -2x +2 -4 \\\\y = -2x -2$

option D

7 0

3 years ago