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scoundrel [369]

3 years ago

8

ok so i have to find the area of this rectangle but the thing is its on a graph and it is slanted and it only gives me the coord

inates of each corner and i have no idea how to solve it. this is geometry

1 answer:

mrs_skeptik [129]3 years ago

5 0

Can you provide a picture or something?

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Jim Tree sells trees. The mean length of the trees purchased was 68 inches with a standard deviation of 10 inches. Jim wants to

Zepler [3.9K]

Step-by-step explanation:

We know that,

$Z=\dfrac{X-\mu}{\sigma}$

Where,

X = raw score = 84

μ = mean = 68

σ = standard deviation = 10

Putting the values,

$Z=\dfrac{84-68}{10}=1.6$

The percent of his sales that were less than or equal to 84 inches, is

$P(Z\leq 1.6)=0.9452=94.52\%\approx 94.5\%$

Therefore, the remaining 100-94.5=5.5% were more than 84 inches.

4 0

3 years ago

find the work done by a person pushing a 40 pound box up an incline that is 30 degrees above the horizontal and 100 feet long (i

tankabanditka [31]

The work done in pushing the box is 64000 lb-ft²/s²

<h3>How to calculate the work done by the person?</h3>

Since person pushing a 40 pound box up an incline that is 30 degrees above the horizontal and 100 feet long, the work done, W is

W = mgh where

m = mass of box = 40 lb,
g = acceleration due to gravity = 32 ft/s² and
h = height of incline = LsinФ where
L = length of incline = 100 ft and
Ф = angle of incline = 30°

So, W = mgh

W = mgLsinФ

So, substituting the values of the variables into the equation, we have

W = mgLsinФ

W = 40 lb × 32 ft/s² × 100 ftsin30°

W = 1280 lb-ft/s² × 100 ft × 0.5

W = 1280 lb-ft/s² × 50 ft

W = 64000 lb-ft²/s²

So, the work done in pushing the box is 64000 lb-ft²/s²

Learn more about work done here:

brainly.com/question/25970931

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3 0

2 years ago

Jack drove to work in the morning at an average speed of 45 miles per hour. He returned home in the evening along the same route

Dmitry [639]

Answer:

Step-by-step explanation:

Let's say that the time it took him to get to work in the morning is t hours. Then the time it took him to get home in the afternoon must be 1 - t hours. We know that for any trip, distance equals rate times time or d = rt . That means that the distance he drove to work is given by , but we also know that the distance he drove to get home must be the same distance, because he took the same route (and, presumably, no one picked up him house and moved it while he was at work) so for the trip home we can say d = 30 × (1 - t) and since the distances are equal, we can say:

45t = 30 × (1 - t)

45t = 30 - 30t

45t + 30t = 30

75t = 30

t = 30/75

t = 2 /5 hour to drive to work at 45mph

Since , d = rt

d = 45 ×(2/5) = 18miles

8 0

3 years ago

A neighborhood was given a vacant lot in the shape of a rectangle on which to build a park. The neighborhood is

AnnZ [28]

Answer:

The answer to your question is below

Step-by-step explanation:

Formula

Triangle's Area = 1/2 bh/2

Trapezoid's area = 1/2 (b1 + b2)h

Parallelogram's area = bh

Rectangle's area = bh

Considering the formulas, we can conclude that:

a) The first choice is true, both formulas have 1/2 in.

b) The second choice is also true, both equations are the same

c) The third choice is incorrect

d) This choice is correct, the bases are added,

e) This choice is incorrect, the sides are not added.

4 0

3 years ago

Read 2 more answers

If xt = 3y -1 and us = 28, find the value of y

olga55 [171]

3y - 1 = 28
+ 1 + 1
----------------
3y = 29
---- ----
3 3
y= 9.66

8 0

3 years ago