All categories

4 years ago

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:

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:

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