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Ierofanga [76]
3 years ago
7

Factorise fully 4x^2 + 28^3

Mathematics
1 answer:
lawyer [7]3 years ago
4 0

Answer:

4x^2 + 21952

that is your answer

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Ms. Bloom received 2 1/7 bags of chocolate for Valentine's from her class and 5/7 of bag of chocolates from a few students from
kiruha [24]
2 1/7 + 5/7 = 2 6/7 total bags

2 6/7 - 1 2/7 = 1 4/7 bags

She took 1 4/7 bags home.
8 0
3 years ago
For a standard normal random variable, what z-score has (a) probability 0.175 to the right?
Mumz [18]
Answer: 0.935

Explanation: 

Let S = z-score that has a probability of 0.175 to the right. 

In terms of normal distribution, the expression "probability to the right" means the probability of having a z-score of more than a particular z-score, which is Z in our definition of variable Z. In terms of equation:

P(z ≥ S) = 0.175   (1)

Equation (1) is solvable using a normal distribution calculator (like the online calculator in this link: http://stattrek.com/online-calculator/normal.aspx). However, the calculator of this type most likely provides the value of P(z ≤ Z), the probability to the left of S.

Nevertheless, we can use the following equation:

P(z ≤ S) + P(z ≥ S) = 1 
⇔ P(z ≤ S) = 1 - P(z ≥ S)  (2)

Now using equations (1) and (2):

P(z ≤ S) = 1 - P(z ≥ S)
P(z ≤ S) = 1 - 0.175 
P(z ≤ S) = 0.825

Using a normal distribution calculator (like in this link: http://stattrek.com/online-calculator/normal.aspx),

P(z ≤ S) = 0.825
⇔ S = 0.935 

Hence, the z-score of 0.935 has a probability 0.175 to the right.
7 0
3 years ago
The rug in Alan's room has an area of 18 square feet. He is planning to buy another rug that is twice as long and twice as wide.
Dennis_Churaev [7]
Yeah its gonna be 18 square feet in wide and length and the area is gonna be 36 square feet
5 0
3 years ago
The question is attached
Julli [10]
Hope it helpssssss best of luckkkkk

7 0
2 years ago
PLS HELP I NEED AN ANSWER
meriva

Answer:

B.

Step-by-step explanation:

None of the other answers make sense, so just by process of elimination it should be B.

Good luck on your assignment!

8 0
3 years ago
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