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
Komok [63]
2 years ago
11

Hey can you please help me with 8 and 10 :)

Mathematics
1 answer:
insens350 [35]2 years ago
4 0
8) So remember the sum of all angles inside a triangle is equal to 180°. We first want to figure out the angle below the 110°.

A straight line is 180° so if we do 180 - 110 we get 70° therefore the angle below the 110° is 70°.

So we now know two angles in the triangle, 70° and 80°. Add these and we get 150°. Now we can determine the final angle (the one labelled (2x - 6)) which will be 30°.

So let’s make it into an equation:

2x - 6 = 30

Add 6 to both sides to isolate 2x:

2x = 36

Divide by 2 to get the value of x:

x = 18



10) Since the sum of all angles in a triangle is 180, and there are only 3 angles, we can determine A easily.

B = 10°
C = 160°

So to determine A:

180 - 160 - 10

Which gives us 10

Therefore A = 10°.


So the answers:

8) x = 18
9) A = 10°


I hope this helps you!!
You might be interested in
3/x^2-1 - 2(x+3) = 5/x+1
weqwewe [10]

Answer:

X=1.132589

Step-by-step explanation:

If im correct the answer would be x=1.132589

3

x2−1

−2(x+3)=

5

x+1

3

(x+1)(x−1)

+−2x−6=

5

x+1

Multiply all terms by (x+1)(x-1) and cancel:

3+(−2x−6)(x+1)(x−1)=5(x−1)

−2x3−6x2+2x+9=5x−5(Simplify both sides of the equation)

−2x3−6x2+2x+9−(5x−5)=5x−5−(5x−5)(Subtract 5x-5 from both sides)

−2x3−6x2−3x+14=0

(Use cubic formula)

x=1.132589

And dont forget to check your answer

3 0
2 years ago
When a breeding group of animals is introduced into a restricted area such as a wildlife reserve, the population can be expected
jasenka [17]

Answer:

A. Initially, there were 12 deer.

B. <em>N(10)</em> corresponds to the amount of deer after 10 years since the herd was introducted on the reserve.

C. After 15 years, there will be 410 deer.

D. The deer population incresed by 30 specimens.

Step-by-step explanation:

N=\frac{12.36}{0.03+0.55^t}

The amount of deer that were initally in the reserve corresponds to the value of N when t=0

N=\frac{12.36}{0.33+0.55^0}

N=\frac{12.36}{0.03+1} =\frac{12.36}{1.03} = 12

A. Initially, there were 12 deer.

B. N(10)=\frac{12.36}{0.03 + 0.55^t} =\frac{12.36}{0.03 + 0.0025}=\frac{12.36}{y}=380

B. <em>N(10)</em> corresponds to the amount of deer after 10 years since the herd was introducted on the reserve.

C. N(15)=\frac{12.36}{0.03+0.55^15}=\frac{12.36}{0.03 + 0.00013}=\frac{12.36}{0.03013}= 410

C. After 15 years, there will be 410 deer.

D. The variation on the amount of deer from the 10th year to the 15th year is given by the next expression:

ΔN=N(15)-N(10)

ΔN=410 deer - 380 deer

ΔN= 30 deer.

D. The deer population incresed by 30 specimens.

8 0
2 years ago
16+1008=<br><br> 56+20<br><br> please help me
kicyunya [14]
16+1008 = 1024

56+20=76
7 0
2 years ago
Read 2 more answers
Which of these are propositions? What are the truth values of those that are propositions?
Natasha2012 [34]

Answer:

c) There are no black flies in Maine -> False

e) The moon is made of green cheese -> False

Explanation:

A proposition is a statement that poses an idea that can be True or False.

  • Do not pass go, is not a proposition is an order, and there is not an answer to that statement.
  • What time is it? Is not a proposition is a question and it's response goes beyond True or False.
  • There are no black flies in Maine is indeed a proposition because is a statement that can either be True or False.
  • 4 + x = 5 is not a proposition because is a statement with an infinite number of answers, in contrast, 4 + 1 = 5 is a proposition because is either True or False.
  • The moon is made of green cheese is a proposition because is a statement that can either be True or False.
  • 2 n ≥ 100 is not a proposition because is a statement with an infinity number of answer and is not clear whether is True or False, in contrast, 2 ≥ 100 is a proposition because is either True or False.
3 0
2 years ago
Combine the like terms to create an equivalent expression <br>-k-(-8k)
Blababa [14]

Answer:

-k+8k=7k is the solution

5 0
2 years ago
Other questions:
  • A person walks 1/3 mile in 1/9 hour. At what speed is the person walking in miles per hour?
    7·1 answer
  • Figure B is the transformation of figure A under what<br> transformation?
    15·1 answer
  • The measure of A is 20° greater than the measure of B. The two angles are complementary. Find the measure of each angle.
    12·1 answer
  • Please help me on my math homework?
    6·1 answer
  • Https://pad let.com/chosenmcdonald/m6geceexz50r32nk<br> how does the economy in the 1700s work
    15·1 answer
  • Freeee points 45678910c
    8·2 answers
  • Stephanie is making a scale model of a room that is 14.5 feet long. She is using the scale 1 inch= 2.5 feet. How long is Stephan
    8·1 answer
  • I NEED HELP!! Please
    9·1 answer
  • A parabola has a maximum value of 4 at x = -1, a y-intercept of 3, and an x-intercept of 1.
    12·2 answers
  • Given mn, find the value of x.<br> 158
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!