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yanalaym [24]
3 years ago
10

Anyone know the answer to all of these

Mathematics
1 answer:
Sav [38]3 years ago
3 0
13:
A- The scale factor is 16 (80/5)

14:
A- The scale factor is 6 (30/5)
B- The perimeter of the scale drawing is 14 feet (5x2) + (2x2)
C- The area of the scale drawing 10 ft. sq (base x height) (5 x 2)
D- The perimeter of the actual screen is 84 feet (30x2) + (12x2)
E- The area of the actual screen is 360 ft. sq (base x height) (30 x 12)


Hope this helped you out tons! :D
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The volume of a rectangular box is 2x(2x + 5)(2x – 3). (Drawing is not to scale.)
Anarel [89]

Answer:

Option B. The volume is the product of the area of the base, 2x(2x + 5), and the height, 2x – 3

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

The volume of a rectangular prism is equal to

V=BH

where

B is the area of the base of the prism

H is the height of the prism

In this problem we have

The area of the base B is equal to

B=2x(2x+5)\ units^2

The height H is equal to

H=2x-3\ units

therefore

The volume is equal to

V=2x(2x+5)(3x-3)\ units^3

The volume is the product of the area of the base, 2x(2x + 5), and the height, 2x – 3

5 0
3 years ago
Basically almost finished it just stuck on the last part. The angle of elevation to a nearby tree from a point on the ground is
Studentka2010 [4]

Answer:

12.4 ft

Step-by-step explanation:

Everything is done right so far.

Now to calculate the height of the tree, 12tan46, put the equation into a calculator.

Either a graphing calculator (make sure it is in degrees, not radians),

or the one on your phone (turn your phone landscape in the calculator app to get the trig functions.))

12tan46= 12.4 ft

4 0
2 years ago
<img src="https://tex.z-dn.net/?f=%5Csf%5Clarge%5Cgreen%7B%5Cunderbrace%7B%5Cred%7BBefikra%2A%7D%7D%7D%3A" id="TexFormula1" titl
slamgirl [31]

First term f = 1

If first four terms are f, f + d, f + 2d, f + 3d

f + f + d + f + 2d + f + 3d = 100

4f + 6d = 100 (divided by 2 , both sides )

2f + 3d = 50

2 + 3d = 50

3d = 50 – 2

3d = 48

d = 48/3

d = 16

The arithmetic sequence is 1, 17, 33, 49, ………….

6 0
2 years ago
Becky is meeting her friend at the library at 12:45 p.m. It takes her 25 minutes to get to the library. What time will she need
inessss [21]

Answer:

Becky must leave at 12:20pm to arrive on time

Step-by-step explanation:

12:45-25=12:20

6 0
3 years ago
Cars A and B leave the same place and travel in the same direction along a straight road. Car A travels at 60 km/h and car B tra
marissa [1.9K]

Answer:

Car A: 8 minutes

Car B: 6.67 minutes

Step-by-step explanation:

Car A: 60km evrery hour so,

1 km every minute, so he will be in 8km in 8 minutes.

Car B: 72km per hour so,

72/60 = 1.2 = 1.2 km per minute.

8/1.2 = 6.6666666666667 which is about 6.67 to the nearest hundredth.

5 0
3 years ago
Read 2 more answers
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