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3 years ago

What is the grade average of 75 70 90 60 50 90 70

1 answer:

6 0

The average can be found by adding them all up and dividing that number by the number of items. If the result have you a number that's more than the largest or less than the lowest, you did it wrong.

(75+70+90+60+50+90+70)/7
= 505/7
=72.14

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10. Select all true statements.

mart [117]

Answer:

its B and E

edit: i forgot C

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Let k(w)= w+3/w+9. Find k^-1(-4)

DENIUS [597]

Answer:

$\displaystyle k^{-1} (-4) = -\frac{39}{5}$

Step-by-step explanation:

We are given the function:

$\displaystyle k(w) = \frac{w + 3}{w + 9}$

And we want to find k⁻¹(-4).

Recall that by the definition of inverse functions:

$\displaystyle \text{If } f(a) = b, \text{ then } f^{-1}(b) = a$

Let k⁻¹(-4) = x, where x is an unknown value. Then by definition, k(x) must equal -4.

So:

$\displaystyle k(x) = \frac{x+3}{x+9} = -4$

Solve for x:

$\displaystyle \begin{aligned} \frac{x+3}{x+9} &= -4 \\ \\ x+3 &= -4(x+9) \\ \\ x+3 &= -4x - 36 \\ \\ x &= -\frac{39}{5} \end{aligned}$

Hence, k(-39/5) = -4. By definition of inverse functions, then, k⁻¹(-4) = -39/5.

3 0

3 years ago

Is it possible for eight employees to earn between $300 and $350 while the ninth earns $1250 per week, and the mean to be $430?

Deffense [45]

According to Google, yes.... any details, I have no idea, but I hope I helped in any way, haha
Good luck~~

4 0

2 years ago

Iconic memory is used when a loud thunderclap occurs during a storm. Please select the best answer from the choices provided T F

jek_recluse [69]

Answer:

The statement is false.

Step-by-step explanation:

" Iconic memory is the visual sensory memory (SM) register pertaining to the visual domain and a fast-decaying store of visual information. It is a component of the visual memory system which also includes visual short-term memory (VSTM) and long-term memory (LTM) "

FOR EXAMPLE:

You are glancing at your friend's phone and you see some image then afterward when you close your eyes you will be able to visualize the image very briefly.

Hence the given statement:

" Iconic memory is used when a loud thunderclap occurs during a storm is FALSE "

7 0

3 years ago

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Solve the equation for 1, PV, PzV2 TT Tz=7 (Type a single fraction.)

slavikrds [6]

Answer:

2/14

Step-by-step explanation:

i tried my best

6 0

2 years ago