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
IRISSAK [1]
3 years ago
8

Find the missing side or angle.

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

a=4.1

Step-by-step explanation:

The Law of Cosines is given as:

a^2=c^2+b^2-2cb\cos A.

Plugging in given values, we get:

a^2=4^2+2^2-2\cdot 4 \cdot 2\cos 78^{\circ},\\a^2=16+4-16\cos 78^{\circ},\\a^2\approx \sqrt{16.673},\\a\approx \fbox{$4.1$}.

You might be interested in
BEST GETS BRAINLEST.
sashaice [31]
We know that <span>the given side lengths are x and the height is x. 

Therefore, the area of the base = </span> A = x * x 

Formula =\ \textgreater \  volume = length*width*height&#10;

To \ find \ the \ volume \ of \ 1  \ slab, \ multiply \ by \ the \ height x -3 

= x*x*(x-3) 

Volume \ of \ 25 \ slabs = 25*x^2*(x-3)=350000 

350,000/25 = 14,000<span>
</span>
x^3 - 3x^2 - 14000<span>
</span>
= 25.14
<span>
</span>&#10;Rounded => x=25


8 0
3 years ago
Read 2 more answers
Can anyone help i’m in desperate need!?
Murljashka [212]

Answer:

1. coplanar

2. line segment

3. plane

4. ray

5. postulate

6. undefined terms

7. coplanar

8. point

5 0
3 years ago
9/10-1/3-1/5 find the fraction
Zanzabum
Find a common multiple in between the denominators.
10 and 3 and 5 -> the least common multiple is 30.

Change all the denominators to 30 by multiplying the top and bottom by the same number.

9/10=27/30
1/3=10/30
1/5=6/30

Subtract!
27/39-10/30-6/30=11/30

The answer is 11/30

Hope this helps!



3 0
3 years ago
Find the x-intercept and y-intercept for 8x+4y=16
Valentin [98]

Answer:

y-intercept = 4

x-intercept = 2

Step-by-step explanation:

you can divide the equation through by 4 and change into the y=mx+c form to find c, the y intercept so the y-intercept = 4.

for the x intercept make the y=0 (because the coordinate point where the line crosses the x axis must have y=0) and then you get 8x=16 so x=2

4 0
3 years ago
A cab service charges $4 plus $1.50 per mile. Kate wants to spend no more
bearhunter [10]

Answer:

b

Step-by-step explanation:

took the test i got bj : fz wf

3 0
3 years ago
Read 2 more answers
Other questions:
  • Bobby bought two shares of stock, which he sold for $96 each. If he had a profit of 20 percent on the sale of one of the shares
    12·1 answer
  • jennifer has started a blog and is using the bar chart below to keep track of how many followers she has, how many followers wil
    9·1 answer
  • A variety pack of chocolates contains chocolate candies with different fillings. one eighth of the candy has coconut filling, 5/
    9·1 answer
  • 2. Brandon and his friends want to be at the amusement park by 1:30 pm. The bus
    14·1 answer
  • Somebody know how to do this?
    5·1 answer
  • Need help asap<br> will give brainly
    13·2 answers
  • X+Y<br> Help me solve this real quick need answer asap
    13·1 answer
  • Latoya took a taxi home from her best
    10·2 answers
  • Which of the following is the equation of the one that passes through the point
    10·1 answer
  • Given f(x) = 8x+1 2x-9 O As x-00, f(x) → 9; as x → ∞o, f(x) → 9. -&gt; - O As x-00, f(x) O As x-00, f(x) O As x-00, f(x) - - wha
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!