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4 years ago

50 PTS, WILL MARK BRAINLIEST

Mathematics

1 answer:

Pavel [41]4 years ago

6 0

Part A)

Total stores = 362 + 66 = 428

362 / 428 = 0.845 = 84.5% = 85%

66 / 428 = 0.154 = 15.4% = 15%

Yes this is consistent with the percentages shown in the first table.

Part B)

Total stores : 197 +115 = 312

197 / 312 = 0.631 = 63.1% = 63%

115 / 312 = 0.368 = 36.8% = 37%

The percentage for current stores is less than what is shown in the first table, so this would not be consistent.

Part C )

Percentage of new stores for the Northeast = 60 / 310 = 19%

The percentage of new stores for The Midwest and Northeast are below 25%, but the percentage of new stores in the South is above 25%, so the additional training wouldn't be required for the South, but should be required for the other two areas.

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3 years ago

a. If you select a random sample of 50 sessions, what is the probability that the sample mean is between 10.8 and 11.2 minutes

natka813 [3]

<span>P stands for probability P(10.8</span>

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3 years ago

The ages of 3 brothers are represented by consecutive integers. If the oldest brother's age is decreased by twice the younger br

ANEK [815]

Answer:

The age of youngest brother is <u>21</u>.

Step-by-step explanation:

Given:

The ages of 3 brothers are represented by consecutive integers.

If the oldest brother's age is decreased by twice the younger brother's age, the result is -19.

Now, to find the age of youngest brother.

Let the age of youngest brother be $a-1.$

Let the age of middle one be $a$ .

And the age of oldest brother age be $a+1.$

According to question:

$(a+1)-2(a-1)=-19$

⇒ $a+1-2a+2=-19$

⇒ $-a+3=-19$

Adding $a$ on both sides we get:

⇒ $2=-19+a$

Adding 19 on both sides we get:

⇒ $22=a$

Now, getting the age of youngest brother by putting the value of $a$ :

$a-1$

⇒ $=22-1=21.$

Therefore, the age of youngest brother is 21.

3 0

3 years ago

Me pueden resolver esto porfa

Ivanshal [37]

Answer:

need points for school i have to have 50 points by 3 pm ill owe u promise :)

Step-by-step explanation:

3 0

3 years ago

FACTOR. THEOREM is x-3 a factor?!

Oduvanchick [21]

Answer:

Yes, (x - 3) is a factor of P(x) and 3 is a zero or root of P(x)

Step-by-step explanation:

Determine whether or not (x - 3) is a factor by using synthetic division with +3 as the divisor. The coefficients of the polynomial p(x) are {2 -5 -4 0 9}.

Setting up synthetic division:

3 / 2 -5 -4 0 9

6 3 -3 -9

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

2 1 -1 -3 0

Since the remainder is zero (0), we know that 3 is a root of the polynomial P(x) and that (x - 3) is a factor of said polynomial.

3 0

3 years ago

*50 PTS, WILL MARK BRAINLIEST*

50 PTS, WILL MARK BRAINLIEST