3 years ago

What is 80 divided by 6?

1 answer:

3 0

13.33 with a little line over the last three. Which makes it known that it is continuous. Or the fraction answer.. 40/3!

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Michelle took one of her friends out to lunch. The lunches cost $74 and

Reika [66]

Answer:

$91. 91

Step-by-step explanation:

i used a tip and tax calculator :))) hope this helps

8 0

3 years ago

If A = {1, 2, 3, 4}, what is n(A)?

Elis [28]

Answer:

Step-by-step explanation:

Count the number of elements in A

n(A) = 4

3 0

4 years ago

Lyme disease is an inflammatory disease that results in a skin rash and flulike symptoms. It is transmitted through the bite of

neonofarm [45]

Answer:

Step-by-step explanation:

Let cases of Lyme disease = x

x = 2, 1, 3, 4, 5, 1, 2, 1, 6, 5, 4, 1

$\sum x = 35$

$\sum x^2 = 139$

y = 0, 1, 2, 1, 3, 5, 2, 3, 3, 3, 1, 0

$\sum y = 24$

$\sum y^2 = 72$

$\sum xy = 55$

$S_{xx} = \sum x^2 - (\sum x)^2/n\\S_{xx} = 139 - 35^2/12\\S_{xx} = 36.92\\S_{yy} = \sum y^2 - (\sum y)^2/n\\S_{yy} = 72 - 24^2/12\\S_{yy} = 24$

$S_{xy} = \sum xy - ( \sum x \sum y)/n\\S_{xy} = 55 - (35*24)/12\\S_{xy} = -15$

b) Linear correlation between Lyme disease and drowning deaths.

$r = \frac{S_{xy}}{\sqrt{S_{xx}S_{yy}} }$

r = -15/ √(24*36.92)

r = -0.504

3 0

3 years ago

Simplify the expression 3^-8× 34.

Alborosie

Answer:

= $\frac{34}{6561}$

Step-by-step explanation:

$= 3^{-8}\times \:34\\= 34\times \frac{1}{3^{8} } \\= \frac{1\times \:34}{3^{8} } \\= \frac{34}{3^{8} } \\= \frac{34}{6561}$

5 0

4 years ago

If Grayson has filled 4 more sketchbooks with drawings at home than he has filled at school, how many sketchbooks has he filled

salantis [7]

Answer:

2x + 4

Step-by-step explanation:

I'm guessing there are no exact numbers

home = x + 4

school = x

x + x + 4

2x + 4

8 0

3 years ago