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3 years ago

Mr. Jackson gave an exam worth 50 points.

Mathematics

2 answers:

soldi70 [24.7K]3 years ago

7 0

Answer:

The person above is right, and deserves brainliest.

31 Is the correct answer

ED2021

Feliz [49]3 years ago

3 0

Z = (score - mean)/sd

-1.75 = (x - 38)/4

Multiply both sides by 4:

-7 = x -38

Add 38 to both sides:

x = 31

He scored a 31 points on the exam

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Fast-Food Bills for Drive-Thru Customers A random sample of 49 cars in the drive-thru of a popular fast food restaurant revealed

sergeinik [125]

Answer:

sample mean:: 17.92

ME = z*s/sqrt(n) = 1.8807*6.35/sqrt(47) = 1.7421

------------------------

Step-by-step explanation:

6 0

3 years ago

Which of the following equations represent nonlinear functions?

s2008m [1.1K]

y=5x^2+7 is Non-Linear Functions

Option B is correct option.

Step-by-step explanation:

We need to identify Non-Linear Functions from the equations given.

First we will define Non-Linear Functions

<u>Linear Functions</u>

A function having exponent of variable equal to 1 or of the form y=c, where c is constant is called linear function.

<u>Non-Linear Functions</u>

A function that has variable having power greater than 1 (i.e 2 or above) is called non-linear function.

So, from all the options given, only Option B has power greater than 1 i.e 2. All remaining options are linear functions.

So, y=5x^2+7 is Non-Linear Functions

Option B is correct option.

Keywords: Linear and Non-Linear Functions

Learn more about Linear and Non-linear functions at:

#learnwithBrainly

3 0

3 years ago

Find the parametric equations for the line that is tangent to the given curve at the given parameter (3cost)i (t^4 -3sint)j

ale4655 [162]

Answer:

Following are the solution to this question:

Step-by-step explanation:

Please find the complete question in the attached file.

In the given equation, when the point t=0

So,

$\to r(0) = (3 \cos 0)i + (0^4 - 6 \sin 0)j + (2e^{3\times 0})k)$

$= (3 \times 1)i + (0 - 0)j + (2e^{0})k)\\\\ = 3i + 0j + (2 \times 1)k)\\\\ = 3i + 0j + 2k \\$

The value of the coordinates are $3, 0, 2$ . so, the equation of the line is:

$\to \frac{(x-3)}{3 \cos \ t} = \frac{(y-0)}{(t^{4}-6 \sin \ t)} = \frac{(z-2)}{2e^{3t}}=k$

5 0

3 years ago

What is the value of x and z

saw5 [17]

Z is 109 and x is 13

8 0

3 years ago

Uhhhhh please help asaapp

trapecia [35]

Answer:

sorry

Step-by-step explanation:

4 0

3 years ago