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3 years ago

1.) 87.7432.)123.7893.) 3256.12544.) 102356.785.) 78.56Round to whole number..

Mathematics

1 answer:

Dima020 [189]3 years ago

5 0

Answer:

1.)88

2.)124

3.)3256

4.)102357

5.)79

Step-by-step explanation:

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It is 4:12 p.m. Emma's mom will be home from work in 70 minutes, and Emma has gymnastics lessons at 6:00 p.m.

egoroff_w [7]

Answer:

emma is dum as freak

Step-by-step explanation:

.................................................

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3 years ago

What fraction has the greatest value 2/8. 1/8. 2/4. 2/6

sveticcg [70]

If you convert all of the fractions to decimals.......
2/8=,25 1/8=.125 2/4=.5 2/6=.333333

So in this case 2/4 has the greatest value....

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4 years ago

How many permutations of the 26 letters of the English alphabet do not contain any of the strings fish, rat, or bird

NARA [144]

The number of permutations of the 26 letters of the English alphabet that do not contain any of the strings fish, rat, or bird is 402619359782336797900800000

Let

$\mathcal{E}=\{\text{All lowercase letters of the English Alphabet}\}\\\\B=\overline{\{b,i,r,d\}} \cup \{bird\}\\\\F=\overline{\{f,i,s,h\}} \cup \{fish\}\\\\R=\overline{\{r,a,t\}} \cup \{rat\}\\\\FR=\overline{\{f,i,s,h,r,a,t\}} \cup \{fish,rat\}$

Then

$Perm(\mathcal{E})=\{\text{All orderings of all the elements of } \mathcal{E}\}\\\\Perm(B)=\{\text{All orderings of all the elements of } \mathcal{E} \text{ containing bird}\}\\\\Perm(F)=\{\text{All orderings of all the elements of } \mathcal{E} \text{ containing fish}\}\\\\Perm(R)=\{\text{All orderings of all the elements of } \mathcal{E} \text{ containing rat}\}\\\\Perm(FR)=\{\text{All orderings of all the elements of } \mathcal{E} \text{ containing both fish and rat}\}\\$

Note that since

$F \cap R=\varnothing$ , $Perm(F)\cap Perm(R)\ne \varnothing$

But since

$B \cap R \ne \varnothing$ , $Perm(B)\cap Perm(R)= \varnothing$

and

$B \cap F \ne \varnothing$ , $Perm(B)\cap Perm(F)= \varnothing$

Since

$|\mathcal{E} |=26 \text{, then, } |Perm(\mathcal{E})|=26! \\\\|B|=26-4+1=23 \text{, then, } |Perm(B)|=23!\\\\|F|=26-4+1=23 \text{, then, } |Perm(F)|=23!\\\\|R|=26-3+1=24 \text{, then, } |Perm(R)|=24!\\\\|FR|=26-7+2=21 \text{, then, } |Perm(FR)|=21!\\$

where $|Perm(X)|=\text{number of possible permutations of the elements of X taking all at once}$

and

$|Perm(F) \cup Perm(R)| = |Perm(F)| + |Perm(R)| - |Perm(FR)|\\= 23!+24!- 21! \text{ possibilities}$

What we are looking for is the number of permutations of the 26 letters of the alphabet that do not contain the strings fish, rat or bird, or

$|Perm(\mathcal{E})|-|Perm(B)|-|Perm(F)\cup Perm(R)|\\= 26!-23!-(23!+24!- 21!)\\= 402619359782336797900800000 \text{ possibilities}$

This link contains another solved problem on permutations:

brainly.com/question/7951365

6 0

3 years ago

The function h(t)=-4.92t^2+14.69t+575 is used to model an object being tossed from a tall building, where h(t) is the height in

Scilla [17]

Given that equation modelling the height of the building is given by:
<span>h(t)=-4.92t^2+14.69t+575
plotting the equation (see the plot below)
The domain in all real numbers.

</span>Range: (h∈R: 196800h≤115317961)

3 0

4 years ago

Read 2 more answers

How to solve linear equations in slope intercept form<br> y=-x+2

alexdok [17]

Slope intercept from is y=mx+b so y= a -xor a -1x + 2
.
so y is y.
your -1 one x is saying you will rise and run down or to the left. on a graph.
the +2 means you will move up or to the right by 2 units

4 0

3 years ago

1.) 87.7432.)123.7893.) 3256.12544.) 102356.785.) 78.56Round to whole number..​

1.) 87.7432.)123.7893.) 3256.12544.) 102356.785.) 78.56Round to whole number..