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3 years ago

if two equations in a system of linear equations are added and the result is 8x=0 the system has no solution true or false

1 answer:

4 0

The answer is false. this is because you have to get the x by itself so you divide both sides by 8.

8x = 0

x = 0

hope this helps, God bless!

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Use the graph of f to estimate the local maximum and local minimum. (5 points)

Flura [38]

Answer:

The correct option is 1.

Step-by-step explanation:

In a graph, the lowest points of the functions are called local minima and highest points of the functions are called local maxima.

The point of local maxima and local minima can be more than one point. The graph must be continuous at extreme points.

From the given graph it is noticed that the highest point of the function is (0,1), therefore the local maxima is (0,1).

The lowest points of the graph are

$(-\pi,-1),(\frac{3\pi}{2},-1),(\pi,-1)$

But the graph is discontinuous at $(\pi,-1)$ . So, the point $(\pi,-1)$ is not a local minima.

The point of local minima are $(-\pi,-1),(\frac{3\pi}{2},-1)$ .

Therefore option 1 is correct.

6 0

3 years ago

Read 2 more answers

An eagle perched 40 ft up in a tree looks down at a 35 degree angle(angle of depression) and spots a vole. How far is the vole f

maria [59]

Answer:

$X=49ft$

Step-by-step explanation:

From the question we are told that:

Height of Eagle $h=40ft$

Angle of depression $\theta=35\textdegree$

Generally the trigonometry equation for diagonal X is mathematically given by

$Cos\theta \textdegree=\frac{Adjacent}{Hypotenuse} }$

$Cos\theta \textdegree=\frac{h}{X} }$

$X=\frac{40}{Cos 35 } }$

$X=48.83ft$

$X=49ft$

3 0

3 years ago

What the answer to this problem I need the answer as soon as possible

DENIUS [597]

I am not that sure but I believe it would be 12 and 1/2 points since that would have brought him back up to 100%. Because if it was any other it would make his score lower than 100% or higher then 100%

6 0

3 years ago

Mila is working two summer jobs, making $9 per hour babysitting and $17 per hour lifeguarding. Last week Mila earned a total of

aksik [14]

Mila spent 4 hours at baby sitting and 6 hours at life guarding

Solution:

Given that, Mila is working two summer jobs, making $9 per hour babysitting and $17 per hour life guarding

Amount earned from babysitting = $ 9 per hour

Amount earned from life guarding = $ 17 per hour

Last week Mila earned a total of $138 and worked 2 more hours life guarding than hours babysitting

Let "b" represent the number of hours spent babysitting

Then, the number of hours spend at life guarding is b + 2

Also, total amount earned last week = $ 138

Then, we can frame a equation as:

Amount earned from babysitting x number of hours spent babysitting + Amount earned from life guarding x number of hours spend at life guarding = 138

$9 \times b + 17 \times (b+2) = 138\\\\9b + 17b + 34 = 138\\\\26b = 138 - 34\\\\26b = 104\\\\b = 4$

Then, number of hours spent at life guarding:

b + 2 - 4 + 2 = 6 hours

Thus she spent 4 hours at baby sitting and 6 hours at life guarding

7 0

3 years ago

The results of a study exhibit response bias. Select the statement that best describes the bias in the study.

dmitriy555 [2]

Answer:

"The interviewer for the study did not record the responses of the subjects accurately." I believe this is most pertinent. B, or the boss of the subjects, could have been an answer, but if all members associated in the study exhibit the similar level of response bias based upon superior employers, then the study remains somewhat accurate, but C, or inaccurate record of responses, would remain biased entirely.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers