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
Nadya [2.5K]
4 years ago
13

Question is in the picture please help and if u have smart remarks dont reply ill report

Mathematics
1 answer:
emmasim [6.3K]4 years ago
8 0
Answer: Choice D

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

Explanation:

It might help to turn the image sideways so that it is rotated 90 degrees. Have the triangle facing upward with (x1,y2) and (x1,y1) as the base points. The base has a length of (y2-y1) as this is the difference of y coordinate values. The x coordinate being the same indicates we simply subtract. 

The height is (x3-x1) which is the difference of the x coordinates for either left point and the right point

So,
area = (1/2)*base*height
area = (1/2)*(y2-y1)*(x3-x1)
which is why choice D is the answer
You might be interested in
If you subtract my number from 300, or if you add my number to 220, you will get the same result. What is my number?
Oxana [17]

Answer:

40

Step-by-step explanation:

Subtracting a number k from 300 looks like this 300-k.

Adding a number k to 220 looks like this 220+k.

They are saying for some number k that we have 300-k and 220+k is the same value.

That is, 300-k=220+k.

This is the equation we are going to solve for your number.

300-k=220+k

Add k on both sides:

300=220+2k

Subtract 220 on both sides;

80=2k

Divide both sides by 2:

40=k

k=40.

So the number is 40.

Check: 300-40=260 while 220+40=260.

8 0
3 years ago
Easy 10 points and brainliest :)
Llana [10]

Answer:

on the x-axis

Step-by-step explanation:

If x is less than 0, that means it's to the left of the origin, and if y = 0, then that means the point lies on the x-axis.  Hence, (x,y) is on the x-axis.

Cheers.

4 0
4 years ago
How do I solve this problem?
Rasek [7]

Answer:

for question 1 x=1,y=-2

question 2, x=-9,y=-2

8 0
3 years ago
2^x-4x=0 find the value of x in the equation
ella [17]

9514 1404 393

Answer:

  x ≈ 0.309906932381 or 4

Step-by-step explanation:

There are no algebraic methods of solving a mixed exponential and polynomial equation. The value of x can be found by guessing, or by other means such as trial and error or graphing.

Attached is a graph showing two solutions. x = 4 is the integer solution (2^4 = 4·4). The irrational solution is approximately x ≈ 0.309906932381. That precision is obtained by Newton's method iteration, easily done by a graphing calculator.

3 0
3 years ago
Consider an unreliable communication channel that can successfully send a message with probability 1/2, or otherwise, the messag
Anon25 [30]

Answer:

6 times we need to transmit the message over this unreliable channel so that with probability 63/64.

Step-by-step explanation:

Consider the provided information.

Let x is the number of times massage received.

It is given that the probability of successfully is 1/2.

Thus p = 1/2 and q = 1/2

We want the number of times do we need to transmit the message over this unreliable channel so that with probability 63/64 the message is received at least once.

According to the binomial distribution:

P(X=x)=\frac{n!}{r!(n-r)!}p^rq^{n-r}

We want message is received at least once. This can be written as:

P(X\geq 1)=1-P(x=0)

The probability of at least once is given as 63/64 we need to find the number of times we need to send the massage.

\frac{63}{64}=1-\frac{n!}{0!(n-0)!}\frac{1}{2}^0\frac{1}{2}^{n-0}

\frac{63}{64}=1-\frac{n!}{n!}\frac{1}{2}^{n}

\frac{63}{64}=1-\frac{1}{2}^{n}

\frac{1}{2}^{n}=1-\frac{63}{64}

\frac{1}{2}^{n}=\frac{1}{64}

By comparing the value number we find that the value of n should be 6.

Hence, 6 times we need to transmit the message over this unreliable channel so that with probability 63/64.

7 0
3 years ago
Other questions:
  • Explain what is 90% of 180
    12·1 answer
  • Valerie buys a book that cost $22,00 plus 8.25% sales tax what does she pay for the book
    9·1 answer
  • PLZ PLZ HELP ME I don't understand it
    11·2 answers
  • 202.01 has __________ significant figures * 1 point
    6·1 answer
  • What is the function rule​
    14·2 answers
  • Joanne cannot decide which of two washing machines to buy. The selling price of each is ​$720. The first is marked down by 50​%.
    11·1 answer
  • Please finish this and make sure you’re 100% right thank you
    10·1 answer
  • Squared root of -100 =
    6·2 answers
  • What are the values of a and b in the relative frequency table for the survey results? round answers to the nearest percent. a =
    5·1 answer
  • Victor measured a city park and made a scale drawing. The soccer field is 23 millimeters long in the drawing. The actual field i
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!