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DedPeter [7]
2 years ago
14

Pls anybody know this ?​

Mathematics
1 answer:
MakcuM [25]2 years ago
8 0

Answer:

Concept: Ordinary Mathematics

  • Just a general tip: Zoom away further from the camera to capture the question clearer.
  1. Calculate the Total: 31 students
  2. A= 4/31= 13%
  3. (A+B)/31 = 14/31 = 45%
  4. Can't see clearly what it says
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4(x-6)&lt;-2x+6 what is the solution to the inequality <br> _
Cloud [144]
Simplify both sides if needed. The left-hand side needs simplification.

4(x - 6) \leq -2x + 6
4x - 24 \leq  -2x + 6

All is left to do is add and subtract to get the x variable all alone.

4x - 24  \leq -2x + 6
6x - 24  \leq  6    <-- Add 2x to both sides
6x         \leq  30  <-- Add 24 to both sides 
x           \leq 5    <-- Divide both sides by 6

In order to be in the solution set, x has to be less than or equal to 5.

In interval notation: [5, -∞)
7 0
2 years ago
Subtracting 5 from each score in a distribution with a mean equal to 40 and a standard deviation equal to 3 will result in a sta
LenaWriter [7]

Adding or subtracting a constant from each value of a distribution changes the mean, but not the standard deviation.


The standard deviation will equal 3.

6 0
2 years ago
a printer that sells for $190 is on sale for 20% off what is the sale price of the printer to work please​
alexandr402 [8]

Hey!

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

Solution:

20% = 0.2 (percentage as decimal)

190 x 0.2 = 38 (discount)

190 - 38 = 152 (sale price)

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

Answer:

The sale price of the printer is $152.

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

Hope This Helped! Good Luck!

6 0
3 years ago
A coin flipped 14 times and it comes up heads 10 times what is the experimental probability of the coin’s coming up heads ?
Gekata [30.6K]

The answer is B.

If a coin is flipped 14 times and lands on heads 10 times the fraction would equal to 10/14.

10/14 simplifies to 5/7.

3 0
3 years ago
Read 2 more answers
The graph of an equation with a negative discriminant always has which characteristic?<br>​
jasenka [17]

Answer:

a posative

Step-by-step explanation:

3 0
3 years ago
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