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faltersainse [42]
3 years ago
9

Find the area of the figure below by first finding the areas of the rectangle and triangle

Mathematics
1 answer:
Dmitrij [34]3 years ago
3 0

Answer:

The total area is 45

Step-by-step explanation:

It's basically the same steps at the last problem

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What is the 20th term of the sequence that begins -5,15,-45, 135. ?
larisa [96]
The 20th term in the sequence should be 5811307335.
Hope I didn't mess up for your sake
6 0
3 years ago
Given the arithmetic sequence where a_{1} = - 5 and d = 6 , what is a_{5} ?
dexar [7]
A_{5} = a_{1} + 4d = -5 + 4 x 6 = 19
3 0
1 year ago
Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 2x-y=
Bond [772]

Answer:

The system of linear equations has infinitely many solutions

Step-by-step explanation:

Let's modified the equations and find the answer.

Using the first equation:

2x-y=5 we can multiply by 2 in both sides, obtaining:

2*(2x-y)=2*5 which can by simplified as:

4x-2y=10 which is equal to:

4x=2y+10

Considering the second equation:

=4x+ky=2

Taking into account that from the first equation we know that: 4x=2y+10, we can express the second equation as:

2y+10+ky=2, which can be simplified as:

(2+k)y=2-10

(2+k)y=-8

y=-8/(2+k)

Because (-8) is being divided by (2+k), then (2+k) can't be equal to 0, so:

2+k=0 if k=-2

This means that k can be any number different than -2, and for each of these solutions, there is a different solution for y, allowing also, different solutions for x.

For example, if k=0 then

y=-8/(2+0) which give us y=-4, and, because:

4x=2y+10 if y=-4 then x=(-8+10)/4=0.5

Now let's try with k=-1, then:

y=-8/(2-1) which give us y=-8, and, because:

4x=2y+10 if y=-8 then x=(-16+10)/4=-1.5.

Then, the system of linear equations has infinitely many solutions

8 0
3 years ago
To help solve the trigonometric inequality 2sin^2(x)+. cos(2x)-2<-1, Tracey successfully graphed the equations y=2sin^2(x) +c
vichka [17]

Answer: B

Step-by-step explanation: I took the quiz and got it right

Also, if you graph the equations on a graphing calculator, the lines are right on top of each other, so the first equation can't be less than -1, so no solutions

3 0
2 years ago
Read 2 more answers
A midpoint of sequence of numbers.
Tema [17]
This would be a median
4 0
3 years ago
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