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
Viefleur [7K]
3 years ago
14

Given: ΔABC; a= 10; b = 4, and c = 11. Find the measurement of ∠B to the nearest tenth of a degree.

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0
Use the Cosine Rule to find this

cos <B  = [b^2 - a^2 - c^2] /  -2ac 

               =  [ 4^2 - 10^2 - 11^2] / -2*10*11

               =   0.93182

so m < B  =   21.3 degrees to nearest tenth.  Answer
You might be interested in
Please help! Find the x-intercepts of the parabola with vertex (-4, 2) and y-intercept (0, -30). Write your answer in this form:
ch4aika [34]
X1-y1
x2-y2

-4-3
0+30

-6
30


the answer would be -0.2
6 0
3 years ago
Tom shared out some money between his three children in the ratio 5:3:2. He later had an extra €6
andrew-mc [135]

Answer:

Step-by-step explanation:

Easy 54320

3 0
3 years ago
What set of data corresponds to the dot plot​
Aleksandr [31]
The bottom answer matches. please give brainlest
5 0
2 years ago
What is the lcm of 15 and 10 multiplied by the lcm of 6 and 20
d1i1m1o1n [39]
1800

LCM of 10 and 15 = 30
LCM of 6 and 20 = 60
30(60) = 1800
8 0
3 years ago
I need to find the derivative. I’m not very good at this so I am answer asap would be sosososo helpful
Bingel [31]

Answer:

See below.

Step-by-step explanation:

First, notice that this is a composition of functions. For instance, let's let f(x)=\sqrt{x} and g(x)=7x^2+4x+1. Then, the given equation is essentially f(g(x))=\sqrt{7x^2+4x+1}. Thus, we can use the chain rule.

Recall the chain rule: \frac{d}{dx}[f(g(x))]=f'(g(x))\cdot g'(x). So, let's find the derivative of each function:

f(x)=\sqrt{x}=x^\frac{1}{2}

We can use the Power Rule here:

f'(x)=(x^\frac{1}{2})'=\frac{1}{2}(x^{-\frac{1}{2}  })=\frac{1}{2\sqrt{x}}

Now:

g(x)=7x^2+4x+1

Again, use the Power Rule and Sum Rule

g'(x)=(7x^2+4x+1)'=(7x^2)'+(4x)'+(1)'=14x+4

Now, we can put them together:

y'=f'(g(x))\cdot g'(x)=\frac{1}{2\sqrt{g(x)}} \cdot (14x+4)

y'=\frac{14x+4}{2\sqrt{7x^2+4x+1} } =\frac{7x+2}{\sqrt{7x^2+4x+1} }

5 0
3 years ago
Other questions:
  • The perimeter of a rectangle is 24 meters. If the length of the rectangle is 8 meters, what is the width (in meters)?
    8·2 answers
  • Miranda had 4 pounds, 6 ounces of clay. she divided into 10 equal parts. how heavy was each part
    14·1 answer
  • Evaluate 8-11 to the square root of 25/121
    15·1 answer
  • Which of the following algebraic equations is equivalent to nVa = 7?
    5·2 answers
  • A computer company uses the function f(h) = 50h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Fin
    6·1 answer
  • AdhkjAhkmhdj help me please
    15·1 answer
  • Solve for Y:
    12·1 answer
  • What is the center and radius for the circle with equation ...
    13·1 answer
  • The slope of the line below is-2. Which of the following is the point-slope
    10·1 answer
  • Question 5 of 10
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!