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Alika [10]
2 years ago
12

HELP HELPPPP ME PLSSS

Mathematics
2 answers:
Scilla [17]2 years ago
7 0

Answer:

The answers are B and D

Step-by-step explanation:

have a wonderful day

Alja [10]2 years ago
3 0

Answer: letter b

Step-by-step explanation:

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PLEASE HELPP !! The ceiling of Stacy's living room is a square that is 25 ft long on each side. Stacy knows the diagonal of the
EleoNora [17]

Answer:

a) d = 36 ft. ( using Pithagoras´theorem )

b) d = 36 ft  ( Using ( function sin ) trigonometry

Step-by-step explanation:

a) Using Pythagoras´Theorem:

Diagonal (d) is the hypothenuse of a right triangle of side 25 feet, and according to Pythagoras´Theorem in a right triangle.

d²  =  a²  +  b²  

In this particular case  a =  b  =  25 feet then

d² =  (25)²  +  ( 25)²

d  = √ 2 * (25)²

d  = √2   * 25

d  =  1,414*25

d  =  35,35

d = 36 ft.

b) Using trigonometry:

We know that sin 45° = cos 45° =  √2 / 2

In a right triangle

sin α  =  opposite side / hypothenuse (d)

sin 45°  =  √2 / 2   =  25/ d

√2 *d  =  2* 25

d  =  50/√2

d  =  50 / 1,414

d  =  35,36

d = 36 ft

6 0
3 years ago
Jose needs to enclose a rectangular section of his yard. The perimeter of the section is 27 feet, and the area is 35 square foot
Ratling [72]
A = 35 sq ft 
<span>L = 10 ft </span>
<span>W = 3.5 ft</span>
3 0
3 years ago
Justin wants to cover the top of a circular swimming pool to keep insects out of the pool. If the diameter of the pool is 20 fee
evablogger [386]

Answer: The area is approximately 314 ft^2

Step-by-step explanation:

Well if the diameter is 20  feet then the radius will be 10 because the radius is half the diameter, and to find the area of a circle, you use the formula

A= \pi r^{2}  where A is the area and pi times the radius squared.

We will represent pi by 3.14  

A= 3.14* 10^2

A= 3.14 * 100

A = 314

6 0
3 years ago
Please please help me out!!!!!!!!!!!!!!!!!!!!!!!!!!
nexus9112 [7]
I hope it can help you

4 0
3 years ago
Read 2 more answers
CAN SOMEBODY PLZZ HELP IM STUDYING FOR A MATH TEST PLLZZZ HELP!!! Thank You!
KatRina [158]

Answer:

46

Step-by-step explanation:

just do -4x-4=16 then 6x5=30 than add 16+30 =46

8 0
2 years ago
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