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
tangare [24]
3 years ago
7

Please help with 2 questions thank you.

Mathematics
1 answer:
frozen [14]3 years ago
6 0
1) m∠1 = 360°/8 = 45° . . . . . a regular octagon is 8-way rotationally symmetrical, so each sector is 1/8 of a circle.

2) m∠2 = (180° -45°)/2 = 67.5° . . . . . . the angles of a triangle add to 180°. The base angles of an isosceles triangle are equal.
You might be interested in
Describe the graph of y > mx, where m > 0.
masha68 [24]
Since the slope is positive, the graph is increasing.
The boundary line is dashed, and everything above it is shaded.
3 0
3 years ago
Read 2 more answers
( −2 x^3) ^ 3 simplify
densk [106]

Answer:

-8x^9

Step-by-step explanation:

We can split up the exponent into multiple products: (-2x^3)^3=(-2)^3*(x^3)^3.

We know that (-2)^3=(-2)*(-2)*(-2)=-1*-1*-1*2*2*2=-1*8=-8.

We also know that (x^3)^3=x^{3*3}=x^9.

So, our answer is \boxed{-8x^9} and we're done!

5 0
2 years ago
Read 2 more answers
At Keller's Bike Rentals, it costs 20 to rent a bike for 4 hours. How many hours of bike use does a customer get per dollar?
Lostsunrise [7]

Answer:

5

Step-by-step explanation:

5x4=20

8 0
2 years ago
Identify two ways that native Americans resisted being relocated
pentagon [3]

Answer:

Tortured and kidnapped white colonists, and some started wars.

4 0
3 years ago
A student takes a true-false test that has 10 questions and guesses randomly at each answer. Let X be the number of questions an
Dvinal [7]

Answer:

P(Fewer than 3) = 0.05.

Step-by-step explanation:

We are given that a student takes a true-false test that has 10 questions and guesses randomly at each answer.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 10 questions

            r = number of success = fewer than 3

           p = probability of success which in our question is probability

                that question is answered correctly, i.e; 50%

<u>LET X = Number of questions answered correctly</u>

So, it means X ~ Binom(n = 10, p = 0.50)

Now, Probability that Fewer than 3 questions are answered correctly is given by = P(X < 3)

P(X < 3)  = P(X = 0) + P(X = 1) + P(X = 2)

=  \binom{10}{0}\times 0.50^{0} \times (1-0.50)^{10-0}+ \binom{10}{1}\times 0.50^{1} \times (1-0.50)^{10-1}+ \binom{10}{2}\times 0.50^{2} \times (1-0.50)^{10-2}

=  1 \times 0.50^{10} + 10 \times 0.50^{10} +45 \times 0.50^{10}

=  0.05

Hence, the P(Fewer than 3) is 0.05.

4 0
3 years ago
Other questions:
  • HELPPP MEEEE I showed picture up there​
    14·2 answers
  • Convert to a decimal: 0.52%
    11·2 answers
  • Harold made the conjecture that the sum of any two prime numbers is a composite number.
    14·1 answer
  • ASAP pls help pls pls pls
    9·1 answer
  • Find the probability of the compound event.
    8·2 answers
  • Pleaseeeee helppppppppppppppp
    15·1 answer
  • A gift box has the shape of a rectangular prism. How much wrapping paper do you need to cover the​ box?
    10·1 answer
  • Please explain this to me and say the answer!! ASAP!!!
    14·1 answer
  • 11. Madison wants to know which sports are most popular.
    13·2 answers
  • Simplify the following algebraic expressions.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!