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Andrei [34K]
3 years ago
8

What is 48% of 64 please give right answers only

Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0

Answer:

30.72

Step-by-step explanation:

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Please help asap!!
masya89 [10]
If I were solving this equation, I would put x^2-20x+(100)=(10). Since this is in standard form, you could change this into vertex form by making the equation      y=(x-10)^2 -10.
5 0
3 years ago
The axis of symmetry for the graph of the function f(x) = 3x2 + bx + 4 is x = 3/2 . What is the value of b?
kvasek [131]
The axis of symmety is the x value of the vertex

to find the x value of the vertex of ax^2+bx+c=0
x value=-b/2a

3x^2+bx+4=0
3/2=vertex

-b/2(3)=3/2
-b/6=3/2
times 6
-b=18/2
-b=9
times -1
b=-9
6 0
3 years ago
Read 2 more answers
Ok so if had rap song like da baby sold two songs and each we $5 million for example his lyric
diamong [38]

Answer: They would make 50 million dollars.

Step-by-step explanation: 10,000,000 x 5,000,000 = 50,000,000

Hope this helps!  :)

4 0
2 years ago
Read 2 more answers
A sample ofn = 25 scores has a mean of M = 83 and a standard deviation ofs = 15.
givi [52]

Answer:

a) The Sample Standard deviation "measures the spread of a data distribution. It measures the typical distance between each data point and the mean"

b) SE=\frac{15}{\sqrt{25}}=3

Step-by-step explanation:

Previous concepts

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Let X the random variable who represents the scores. We know from the problem that the distribution for the random variable X is given by:

X\sim N(\mu =83,\sigma =15)

We take a sample of n=25 nails.  

From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

Part a

The Sample Standard deviation "measures the spread of a data distribution. It measures the typical distance between each data point and the mean"

Part b

The standard error is given by:

SE=\frac{\sigma}{\sqrt{n}}

And replacing we got:

SE=\frac{15}{\sqrt{25}}=3

3 0
2 years ago
Please help and maybe explain<br><br> if it’s not clear enough:
love history [14]

Answers:

  • x = 4
  • angle CAB = 26 degrees
  • angle ABC = 24 degrees

Depending on your teacher, you may or may not have to input the word "degrees" or the degree symbol.

============================================================

Explanation:

We use the remote interior angle theorem.

This says to add two interior angles, and the sum is equal to the exterior angle that is not adjacent to any of the interior ones. Hence the "remote".

(angle CAB) + (angle ABC) = exterior angle

(6x+2) + (9x-12) = 50

15x-10 = 50

15x = 50+10

15x = 60

x = 60/15

x = 4 is the first answer

We can then find the interior angles

angle CAB = 6x+2 = 6(4)+2 = 24+2 = 26 degrees is the second answer

angle ABC = 9x-12 = 9(4)-12 = 36-12 = 24 degrees is the third answer

Then notice how 26+24 = 50 to help confirm the answers.

7 0
2 years ago
Read 2 more answers
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