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3 years ago

9

A hypothesis is only tentative: to make sure it's valid, you have to ___________.

1 answer:

GREYUIT [131]3 years ago

4 0

A hypothesis is only tentative: to make sure it's valid, you have to test it.

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A survey of 100 people in New York City, NY found that.

S_A_V [24]

Answer: 0.9

Step-by-step explanation:

$\mathrm{Total \ sample \ space \ $=100$} \\\mathrm{Event \ $A = \ taking \ subway \ each \ day}$$P(A)=0.85$$Event $B=$ taking taxi $\because P(B)=0.6$$$P(A \cap B)=0.55$$$

$\begin{aligned}P(A \cup B) & \Rightarrow \text { Person taking either taxi/subway } \\&=P(A)+P(B)-P(A \cap B) \\&=(0.85-0.555)+(0.6-0.55)-0.55 \\&=1.45-0.55\\&\bf{=0.9} \end{aligned}$

7 0

2 years ago

How many weeks when the amount of money Hannah owed her friend was 18$

Naya [18.7K]

I believe it’s 3.5 but I could totally be wrong I’m not much help at all

3 0

3 years ago

9y-5x=20 i dono how to do this x and y intercwpt thingy

bagirrra123 [75]

9y - 5x = 20
or, (9y - 5x) / 20 = 1
or, 9/20 y - 1/4 x = 1
compare with x/a + y/b = 1
you'll get
x intercept (a) = -4
y intercept (b) = 20/9

8 0

3 years ago

PLEASE HELP!! I'LL MARK BRAINLIEST & 30 POINTS

ser-zykov [4K]

We are first ask to translate this equation. So using the correct notation...

3X-9=6x6/4

We can also solve it.

3x-9 = 6x6/4

3x-9 = 36/4

3x-9 = 9

3x = 18

x=6

answer: X=6

3 0

3 years ago

You sold your house for $160,000. Your realtor charged a 6% fee on the amount of the sale. How much money did your realtor make?

Mars2501 [29]

6% of 160, 000 = 9600 dollars

The realtor made $9600

3 0

3 years ago

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