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nordsb [41]
3 years ago
14

Can someone help me on this real quick? and Happy Holidays!

Mathematics
2 answers:
AnnZ [28]3 years ago
7 0

Answer:

It should be the first option

Step-by-step explanation:

Wittaler [7]3 years ago
7 0

Answer:

A

Step-by-step explanation:

You might be interested in
Jack wants to use a circular rug on his rectangular office floor to cover two small circular stains, each less than π/100 square
stepladder [879]

Answer: YES

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

  • Area of each stain=less than π/100 square feet  
  • Each one 3 feet from the nearest wall
  • Area of rug: 9π square feet
  • The centers of the stains are less than 4 feet apart.

First, we have to apply the formula AREA OF A CIRCLE(A)= π r², to obtain the radius of each stain:

π/100 = π r²  

π/100 (1/ π)= π r²  

1/100 = r²

√1/100 =r

r = 1/10 ⇒ radius of each stain

The centers of the stains are less than 4 feet apart, so:

Max diameter needed to cover is 4+ 1/10 + 1/10 = 21/5 = 4.2

Finally, we have to obtain the diameter of the rug to compare:

Area of rug: 9π

: 9π = π r2 ⇒ r= 3  

⇒ d (diameter)= 3 x2 = 6 ft

With statements (1) and (2), we know that the diameter of the rug (6ft) can completely cover both stains (max distance is 4 .2ft)

5 0
3 years ago
True or false ? why and why not ? <br><br><br> 7a + 4 - 2a is equivalent to 7a + -2a + 4
Oxana [17]
True because it’s a diamond Rottweiler
6 0
3 years ago
Am i blind or does this just not make any sense? Pls help!
allsm [11]

Answer:

0.4

Step-by-step explanation:

2/5 converted into hundredths is 40/100.

40/100 as a decimal is 0.40, or 0.4

-hope it helps

5 0
2 years ago
Read 2 more answers
Factorise (x+6)²-36x². ​
Lady bird [3.3K]

Answer:

[(x+6)-6x] [(x+6)+6x]

(x+6-6x)(x+6+6x)

(6-5x)(7x+6)

5 0
3 years ago
Use the Law of Cosines to determine the length of the third side of the triangle.
Alchen [17]

<u>Corrected Question</u>

Given a triangle with two sides 4.1 cm and 6.7cm and an Included angle of 35^\circ. Use the Law of Cosines to determine the length of the third side of the triangle.

Answer:

(D) 4.1cm

Step-by-step explanation:

Given a triangle with two sides 4.1 cm and 6.7 cm and an included angle of 35^\circ.

Using Law of Cosines

a^2=b^2+c^2-2bc\cos A\\a^2=4.1^2+6.7^2-2*4.1*6.7\cos 35^\circ\\a^2=16.6958\\a=\sqrt{16.6958}\\a=4.09\\a \approx 4.1$ cm

The correct option is D.

6 0
3 years ago
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