Ask question

Ask question

All categories

3 years ago

8

Negation of all owls fly?

2 answers:

Reptile [31]3 years ago

8 0

Looking at this in terms of sets, let's call O the set of all owls, and F the set of all things that can fly. What this original statement is saying every animal that's a member of the set of all owls is also a member of the set of all things that can fly, or in other words, O⊂F (O is a subset of F). Negating this tells us that, while there's <em>at least one</em> element of O that also belongs to F, O is not contained entirely in F (O⊆F, in notation), so a good negation or our original statement might be:

<em>Not all owls can fly.</em>

Ratling [72]3 years ago

6 0

...wow the other person was fantastic.. I’m not even gonna try competing...

You might be interested in

Match each equation with its solution

Serggg [28]

Answer: The first one is 1. The second one is -25

Step-by-step explanation:

4 0

3 years ago

A rope from the top of a mast on a sailboat is attached to a point 19 feet from the mast. If the rope is 28 feet long, how tall

natka813 [3]

The mast is about 23ft high

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!! WITH #’S 12,20,21

Lisa [10]

12 should be 25% just divide 10 by 40 which gives you .25 then multiply by 100 and that gives you 25%

20 should be 33.33& divide 7 by 21 that gives you .3333 muliply by 100 that gives you 33.33%

21 should be 7.5 since you multiply the percent by the whole to get the part which would be .15 multiply by 50 which is 7.5

3 0

3 years ago

The mass of the sun is about 2×10expont 30 kilograms how many kilograms are in one metric ton

V125BC [204]

The answer is three jams. Mama

5 0

3 years ago

a study of the effects of exercis used rats bred to have high or low capacity for exercise. The 8 high capacity rats had mean bl

zavuch27 [327]

Answer:

$t=-2.86$

Step-by-step explanation:

From the question we are told that:

Sample 1 $n_1=8$

Sample 1 mean blood pressure $\=x_1=89mmHg$

Sample 1 variance $\sigma_1=81$

Sample 2 $n_2=8$

Sample 2 mean blood pressure $\=x_2=105mmHg$

Sample 2 variance $\sigma_2=169$

Generally the equation for the test of statistic is mathematically given by

$t=\frac{\=x_1-\=x_2}{\sqrt{\frac{\sigma_2}{n_1}+\frac{\sigma_2}{n_2} } }$

$t=\frac{89-105}{\sqrt{\frac{81}{8}+\frac{169}{8} } }$

$t=-2.86$

therefore the samples test for comparing the two population means

$t=-2.86$

3 0

3 years ago