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VMariaS [17]
4 years ago
5

Simplify

iv%204" id="TexFormula1" title="(5 + 1) ^{2} - (11 + 3 ^{2} ) \div 4" alt="(5 + 1) ^{2} - (11 + 3 ^{2} ) \div 4" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Elodia [21]4 years ago
6 0

Answer:

31

Step-by-step explanation:

Evaluate following the order set out in the acronym PEMDAS

That is parenthesis, exponents, multiplication, division, addition, subtraction

Given

(5 + 1)² - (11 + 3² ) ÷ 4

= 6² - (11 + 9) ÷ 4

= 36 - 20 ÷ 4 ← division before subtraction

= 36 - 5

= 31

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3 0
3 years ago
The number of calories burned at the gym is normally distributed with a mean of 425 and a standard deviation of 51. Find the Z-s
Galina-37 [17]

Answer:

(a) -3.708

(b) 1.706

(c) 0.490

Step-by-step explanation:

The z-score of normal distribution is given as:

z=\frac{x-\mu}{\sigma}

(a)

Given:

Score is, x=268

Mean value is, \mu =425

Standard deviation is, \sigma = 51

z-score is, z=\frac{268-425}{51}=\frac{-157}{51}=-3.078

(b)

Given:

Score is, x=512

Mean value is, \mu =425

Standard deviation is, \sigma = 51

z-score is, z=\frac{512-425}{51}=\frac{87}{51}=1.706

(c)

Given:

Score is, x=450

Mean value is, \mu =425

Standard deviation is, \sigma = 51

z-score is, z=\frac{450-425}{51}=\frac{25}{51}=0.490

6 0
3 years ago
Sofia wishes to make 0.5 of a recipe. If the original recipe calls for 3.75 cups of flour, how many cups should she use
timofeeve [1]
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6 0
3 years ago
The expression 9x2 - 100 is equivalent to
ANEK [815]

Answer:

I searched it up

Step-by-step explanation:

4 0
3 years ago
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kiruha [24]

Answer:

12+12+10+10=44

104-44=60

60÷2=30

30 is the surface area of A

30÷6=5

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4 0
3 years ago
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