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
BARSIC [14]
3 years ago
11

Can someone help me PLS

Mathematics
2 answers:
jolli1 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

2^2=1.75^2+3^2-2*3*1.75cos x

4=3.0625+9-10.5 cosx

10.5cos x=9-4+3.0625

10.5cosx=8.0625

cos x= 8.0625/10.5≈0.77

x≈40 degrees

Reptile [31]3 years ago
5 0

Answer:  D) 40 degrees

<u>Step-by-step explanation:</u>

Let  A = θ

then a = 2       b = 3     c = 1.75

Use the Law of Cosines:

a² = b² + c² - 2bc · cos A

2² = 3² + 1.75² - 2(3)(1.75) · cos θ

4 = 9 + 3.0625 - 10.5 cos θ

4 = 12.0625 - 10.5 cos θ

-8.0625 = -10.5 cos θ

\dfrac{-8.0625}{-10.5}=\cos \theta\\\\\\\cos^{-1}\bigg(\dfrac{-8.0625}{-10.5}\bigg)=\theta\\\\\\\large\boxed{39.838=\theta}

You might be interested in
A group of ten 6- and 12-volt batteries are wired in series. The sum of their voltages is 84 volts. How many of each type of bat
rusak2 [61]
...... I need this as well please help us!!!
8 0
3 years ago
Mathematics <br> Simple events likelihood experimental probability
saw5 [17]

Problem 1

Answer: Closer to 1

Explanation:

There are 20 gumballs total. Half of this is 20/2 = 10 gumballs. If there's more than 10 of one color, then the probability of getting that color is closer to 1, than it is to 0. Here we have 12 pink which is greater than 10, so that's why the answer is closer to 1.

================================================

Problem 2

Answer: Closer to 0

Explanation:

The amount of green (3) is less than 10, so that's why the probability is closer to 0 than it is to 1. We can see that 3/20 = 0.15 is less than 0.50

================================================

Problem 3

Answer: Closer to 0

Explanation:

We have a similar situation compared to problem 2. This time we have 5/20 = 0.25 which is less than 0.50

================================================

Problem 4

Answer: 48% chance; fairly likely

Explanation:

We have 12 green out of 25 total, so the probability of choosing green is 12/25 = 0.48 = 48%. While this probability is not over 50%, I still say it's fairly likely considering the other colors lead to smaller probabilities. For instance, purple has a chance of 6/25 = 0.24 = 24% and orange has a probability of 2/25 = 0.04 = 4%, both of which are smaller than 48%

3 0
2 years ago
Fill in the blank
Andrej [43]

Answer:

    dont click that link report it

Step-by-step explanation:

8 0
3 years ago
(03.01 LC)
Sedaia [141]
  • Perpendicular=P=4
  • Base=B=4

Hypotenuse be H

Apply Pythagorean theorem

\\ \tt\hookrightarrow H^2=P^2+B^2

\\ \tt\hookrightarrow H^2=4^2+4^2

\\ \tt\hookrightarrow H^2=32

\\ \tt\hookrightarrow H=\sqrt{32}

\\ \tt\hookrightarrow H=5.8units

8 0
2 years ago
What is one tenth of 0.04
Lyrx [107]
One tenth is equal to .1 or 1/10

and .04 is nothing but 4/100

So just multiply them together:

1/10 x 4/100 = 4/1000

And since there are 3 0's we need to move the decimal spot 3 places the the left:

.004

So our final answer is \sf{\boxed{.004}}
7 0
3 years ago
Read 2 more answers
Other questions:
  • The coordinates of point a are 30 units of x and 70 units of y. the coordinates of point b are 28 units of x and 76 units of y.
    11·1 answer
  • Which of the following choices is the common difference between the terms of this arithmetic sequence?
    10·1 answer
  • Uri wants to buy a sweatshirt that
    11·1 answer
  • Which situation has a net result of zero?
    15·1 answer
  • Using complete sentences, explain the key features of the graph of the sine function.
    7·1 answer
  • What is the square root of 289??
    12·2 answers
  • Evaluate 5x²-3(x-2)+x for x=3​
    8·1 answer
  • AYOOO HELPPPPP MATHHHH......? THANKKK UUUUU
    13·1 answer
  • Infinite limits algebraic
    9·1 answer
  • Which point on the line number line represntes -1/3​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!