1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilya [14]
2 years ago
12

Can someone explain this to me please?

Mathematics
1 answer:
Alex Ar [27]2 years ago
4 0

Answer:

Option C

Step-by-step explanation:

Since, measure of all sides of the triangle has been given in the picture,

By applying cosine rule in the given triangle,

AC² = AB² + BC² - 2(AB)(BC)cos(B)

11² = 16² + 16² - 2(16)(16)cos(B)

121 = 256 + 256 - 512.cos(B)

121 - 512 = - 512.cos(B)

cos(B) = \frac{391}{512} = 0.763672

B = cos^{-1}(0.763672)

B = 40.2°

Therefore, measure of angle B is 40.2°.

Option C is the answer.

You might be interested in
Wich is equivalent to sqrt10^3/4 x
Sergio039 [100]

Answer:

( \sqrt[4]{10} ) ^{3x}

7 0
3 years ago
Find the area of the circle. Round your answer to two decimal places, if necessary.
Dmitry_Shevchenko [17]

Step-by-step explanation:

A = pi × r²

A = pi × 13²

A = 530.93 km²

5 0
2 years ago
Read 2 more answers
Help plsssssssssssss
marishachu [46]

Answer:

ummm i don't see anything

4 0
2 years ago
The volumes of two bodies are measured to be
valentinak56 [21]

Answer:

Sum of volumes = (16.6 ± 0.03) cm³

Difference of volumes = (3.8 ± 0.03) cm³

Step-by-step explanation:

Solution

V₁ = (10.2 ± 0.02) cm³ and V₂ = (6.4 ± 0.01) cm³.

∆V = ± (∆V₁ + ∆V₂)

= ± (0.02 + 0.01) cm³

= ± 0.03 cm³

V₁ + V₂ = (10.2 + 6.4) cm³ = 16.6 cm³ and

V₁ - V₂ = (10.2 - 6.4) cm³ = 3.8 cm³

Hence, sum of volumes = (16.6 ± 0.03) cm³

and difference of volumes = (3.8 ± 0.03) cm³

<u>-TheUnknownScientist</u>

5 0
3 years ago
Read 2 more answers
(y 3 - y 2 + y + 3) ÷ (y + 1)
Rufina [12.5K]

Answer:

y^2-2y+3

Step-by-step explanation:

use synthetic division

-1| 1  -1  1  3

      -1  2 -3

   1  -2  3 (0)

  y^2 -2y +3  

3 0
2 years ago
Other questions:
  • 24=7/8g I need help with this equation and explain how to do it please?
    12·1 answer
  • Stuck in it from a week!!<br> Help please.
    9·1 answer
  • Let f : \mathbb{R}^{2} \to \mathbb{R}^{2} be the linear transformation defined by f(\vec{x}) = \left[\begin{array}{cc} 4 &amp;3\
    6·1 answer
  • To change knots per hour, use the expression 1.15k, where k is the speed in in knots per hour. A plane is flying at 300 knots pe
    8·2 answers
  • Helppppppp meee plzz
    5·2 answers
  • A patient is on a low sodium low fat diet three months ago the patient weighed 220 1/8 pounds now the patient Weighs 195 5/8 pou
    8·1 answer
  • DESPERATE WILL GIVE BRAINLIST AND THANKS
    10·1 answer
  • Subtract 7 from all and tell which is the most accurate measurement.
    8·1 answer
  • Find the values of x and y that make k|ljand<br> m || n.<br> x=<br> y =
    11·1 answer
  • Find the area of the semi circles
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!