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kumpel [21]
4 years ago
12

Once again co sines . Please help me and include explanation with a clear answer

Mathematics
1 answer:
vladimir1956 [14]4 years ago
8 0

Using the law os cosines formula b^2 = a^2 + c^2 - 2*a*c*cos(B)

a = 17, b = 8, c = 16

8^2 = 17^2 + 16^2 - 2*17*16* cos(B)

64 = 289 + 256 - 544 * cos(B)

544*cos(B) = 289 + 256 - 64

544 * cos(B) = 481

cos (B) = 481/544

B = arccos(481/544)

B = 27.8 degrees

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Savatey [412]
I have an answer its 50 Hope This Helps!!! :)

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4 years ago
Which of the following statements is true?. . A.A tangent is never a secant.. B.A secant is always a chord.. C.A chord is always
skelet666 [1.2K]

The <em>correct answer</em> is:

A) A tangent is never a secant.

Explanation:

A tangent is a line that touches a circle in exactly one point. A secant is a line that touches a circle in two different points.

Since a tangent only touches once and a secant touches twice, there is no way a tangent can be a secant.

3 0
3 years ago
(FASTEST AND BEST ANSWER GETS BRAINLIEST)
Lorico [155]

Answer:

Step-by-step explanation:

5 0
3 years ago
What is the square root of 48? what is the square root of 1/49 ? what is the square root of 4/100 ?
Luba_88 [7]

Answer:

Step-by-step explanation:

√48 = √(3*16) = 4√3

                   

                  √1                                      

√(1/49) = ------- = 1/7

                √49

                       √4

√(4/100) = --------------- = ±2/10 =                                                                                                                                                                                                                                                                                                                                                                              

                     √100

7 0
3 years ago
Please find the surface area of the cone (image attached) and reduce answer to nearest tenth, if necessary.
Luba_88 [7]

Answer:

S.A = 135.6 yd^2 (

Step-by-step explanation:

Surface area of cone is given as:

Surface Area (S.A) = πr(r + l)

Where,

r = radius = 3 yd

l = slant height = 11.4 yd

Take π as 3.14

Plug the given values into the formula to find the surface area.

S.A = 3.14*3(3 + 11.4)

S.A = 9.42(14.4)

S.A = 135.6 yd^2 (rounded to the nearest tenth)

8 0
3 years ago
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