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Vadim26 [7]
3 years ago
11

The width of a rectangle is 4y-2.5 feet and the length is 2.5y+10 feet. Find the perimeter of the rectangle.

Mathematics
2 answers:
Makovka662 [10]3 years ago
6 0
13y+15

Explanation:

4y-2.5+ 4y-2.5+ 2.5y+10+ 2.5y+10=13y+15
VLD [36.1K]3 years ago
3 0
Answer:
13y+15
Explanation:
4y-2.5+ 4y-2.5+ 2.5y+10+ 2.5y+10=13y+15
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Substitution:<br><br> y=6x+11<br><br>y-4x=15 ​
german

Answer:

x=2

Step-by-step explanation:

6x+11-4x=15

2x+11=15

2x=4

x=2

4 0
3 years ago
A person on a runway sees a plane approaching. The angle of elevation from the runway to the plane is 11.1° . The altitude of th
Gnoma [55]

Answer:

The horizontal distance from the plane to the person on the runway is 20408.16 ft.

Step-by-step explanation:

Consider the figure below,

Where AB represent altitude of the plane is 4000 ft above the ground , C represents the runner.  The angle of elevation from the runway to the plane is 11.1°

BC is the horizontal distance from the plane to the person on the runway.

We have to find distance BC,

Using trigonometric ratio,

\tan\theta=\frac{Perpendicular}{base}

Here, \theta=11.1^{\circ} ,Perpendicular AB = 4000

\tan\theta=\frac{AB}{BC}

\tan 11.1^{\circ} =\frac{4000}{BC}

Solving for BC, we get,

BC=\frac{4000}{\tan 11.1^{\circ} }

BC=\frac{4000}{0.196} (approx)

BC=20408.16(approx)  

Thus, the horizontal distance from the plane to the person on the runway is 20408.16 ft

8 0
2 years ago
Can 7 go into 42 and 91
Misha Larkins [42]
7 times 6 is 42
91 divided by 7 is 13
7 0
2 years ago
Read 2 more answers
PLZ HELP ME WITH GEOMETRY
Aloiza [94]

B a counterclockwise rotation about the origin of 90°

under a counterclockwise rotation about the origin

a point ( x , y ) → (- y, x)

figure Q to figure Q'

( 4,2 ) → (- 2, 4 )

(7, 5 ) → (- 5, 7 )

(3, 7 ) → (- 7 , 3 )

(2, 4 ) → (- 4, 2 )

(5, 4 ) → (- 4, 5 )

the coordinates of the original points of the vertices of Q map to the corresponding points on the image Q'



7 0
3 years ago
Does anyone have the rest of the test? Surface Area and Volume Unit Test????
jarptica [38.1K]

Answer:

B) 112 cm²; 336 cm²

Step-by-step explanation:

The lateral area would be without the bases. In this case, the bases are the top and the bottom

Lateral Area

(2)(2.54)(8) = 40.64

(2)(2.54)(14) = 71.12

Add together and get 111.76 cm²

Surface Area

LA + Bases

<em>Bases</em>

(2)(14)(8) = 224

Add with lateral area and get 335.76 cm²

8 0
3 years ago
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