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3 years ago

ก

Mathematics

1 answer:

sleet_krkn [62]3 years ago

6 0

Answer:

B: a pattern of two-dimensional shapes that can be folded to form a solid figure.

Step-by-step explanation:

Hope this helps!

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Last Wednesday, students could choose ham or turkey sandwiches for lunch. The cafeteria made 75 sandwiches in all, 51 of which w

exis [7]

Answer:

0.68%

Step-by-step explanation:

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2 years ago

16/9(1.2b)=4.8(20/3) solve

mart [117]

$\frac{16}{9}(1.2b)=4.8( \frac{20}{3})$

Multiply 4.8 into (20/3), and multiply 16/9 with (1.2b)

$\frac{19.2b}{9} = \frac{96}{3}$

$\frac{19.2b}{9} = 32$ Multiply 9 on both sides

19.2b = 32(9)

19.2b = 288 Divide 19.2 on both sides

b = 15

4 0

3 years ago

Apple launches an ad campaign for iPhone 12. Managers want to know what is the % of social media mentions that have positive rea

Orlov [11]

Answer:

social media mentions do managers at Apple need to collect, if they want to get a margin of error of 2%

Sample size 'n' = 625

Step-by-step explanation:

Step(i):-

Given data Apple launches an ad campaign for iPhone 12

Managers want to know what is the % of social media mentions that have positive reactions to the new ad campaign

probability of positive reactions p = 1/2

Probability of negative reactions q = 1-p = 1/2

we know that $\sqrt{p(1-p}\leq \frac{1}{2}$

Step(ii):-

Given margin of error = 2 % =0.02

The margin of error is determined by

$M.E = \frac{\sqrt{p(1-p} }{\sqrt{n} }$

$0.02 = \frac{\frac{1}{2} }{\sqrt{n} }$

$\sqrt{n} =\frac{1}{2 X0.02}$

√n = 25

squaring on both sides, we get

n = 625

8 0

3 years ago

1. -7-(-2) *

Morgarella [4.7K]

1. -7-(-2)
= -7+2= -5

2. 5-(-3)
= 5+3=8

3. -6-4
= -6+(-4)= -10

4. -3-(-3)
= -3+3= 0

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3 years ago

Solve this pls help How did the Californian gold rush have an effect on people?

NeTakaya

Answer:

The gold rush has a big impact on people. Especially since it helped shaped the course of California's development by bringing economic growth.

7 0

3 years ago