2 years ago

Find x. 11 13 13' 21'

Mathematics

1 answer:

Studentka2010 [4]2 years ago

4 0

Not enough information? Wouldn't it be 17??

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The grades on a math midterm at Springer are roughly symmetric with \mu = 78μ=78mu, equals, 78 and \sigma = 5.0σ=5.0sigma, equal

mr Goodwill [35]

Answer:

-2.8

Step-by-step explanation:

Given that:

Mean, μ = 78

Standard deviation, σ = 5

Omar's score, x = 64

The Zscore of Omar's score :

Zscore = (x - μ) ÷ σ

Zscore = (64 - 78) / 5

Zscore = - 14 / 5

Zscore = - 2.8

Hence, Omar's exam score is - 2.8

8 0

3 years ago

Fill in the next number in the list: 1,3,7,13,21,31

stepan [7]

Answer:

should be 43

Step-by-step explanation:

because it goes up by 2 every time

4 0

3 years ago

Read 2 more answers

PLEASE can someone explain why The exact value of sec ( π/6) is 2 /√ 3 ??

Umnica [9.8K]

$\bf sec\left( \frac{\pi }{6} \right)\qquad recall\to sec(\theta)=\cfrac{1}{cos(\theta)}\qquad thus
\\\\
sec\left( \frac{\pi }{6}\right)\iff \cfrac{1}{cos\left( \frac{\pi }{6}\right)}
\\\\\\
\textit{check your Unit Circle for what the }cos\left( \frac{\pi }{6}\right)\ is
\\\\\\
\cfrac{1}{\frac{\sqrt{3}}{2}}\implies \cfrac{\frac{1}{1}}{\frac{\sqrt{3}}{2}}\implies 
\cfrac{1}{1}\cdot \cfrac{2}{\sqrt{3}}\implies \cfrac{2}{\sqrt{3}}$

3 0

2 years ago

What is the best approximation of the area of a circle with a diameter of 17 meters? Use 3.14 to approximate pi. 53.4 m² 106.8 m

Arte-miy333 [17]

R = 17/2 =8.5 m
A = 3.14 x (8.5)^2
A = 3.14 x 72.25
A = 226.865

answer <span>226.9 m² (third choice)</span>

8 0

3 years ago

if u had 5 $100 bills 6 $50 bills 7 $20 bills 8 $10 bills 9 $5 bills 10 $2 bills 11 $1 bills and 100 cents 2 50 cents 3 25 cents

almond37 [142]

Answer:

1,099.88

Step-by-step explanation:

Just add everything to get that.

5 0

2 years ago