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3 years ago

Please help! It’s due tomorrow it also says to show my work

Mathematics

1 answer:

Pani-rosa [81]3 years ago

6 0

Given:

The inequality is

$x+19\leq 23$

To find:

The value of x and then graph on the number line.

Solution:

We have,

$x+19\leq 23$

Subtracting 19 from both sides, we get

$x+19-19\leq 23-19$

$x\leq 4$

It means all the real values of x which are less than or equal to 4 are in the solution set. So, an arrow approaches towards left from x=4 as shown in the below figure.

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Four teams A,B,C, and D compete in a tournament, and exactly one of them will win the tournament. Teams A and B have the same ch

beks73 [17]

Answer:

A= 0,2

B= 0,2

C= 0,4

D=0,2

Step-by-step explanation:

We know that only one team can win, so the sum of each probability of wining is one

P(A)+P(B)+P(C)+P(D)=1

then we Know that the probability of Team A and B are the same, so

P(A)=P(B)

And that the the probability that either team A or team C wins the tournament is 0.6, so P(A)+Pc)= 0,6, then P(C)= 0.6-P(A)

Also, we know that team C is twice as likely to win the tournament as team D, so P(C)= 2 P(D) so P(D) = P(C)/2= (0.6-P(A))/2

Now if we use the first formula:

P(A)+P(B)+P(C)+P(D)=1

P(A)+P(A)+0.6-P(A)+(0.6-P(A))/2=1

0,5 P(A)+0.9=1

0,5 P(A)= 0,1

P(A)= 0,2

P(B)= 0,2

P(C)=0,4

P(D)=0,2

4 0

3 years ago

Simplify the expression<br> 3n+–9n+–8+–7n2

Lunna [17]

Answer: -7n^2-6n-8

Step-by-step explanation:

3 0

2 years ago

Can someone help please

yanalaym [24]

Step-by-step explanation:

a) The volume of the prism is

$V = (n^2 - 1)×(n^2 - 1)×(5n)$

$\:\:\:\:= (n^4 - 2n^2 + 1)(5n)$

$\:\:\:\:=5n^5 - 10n^3 + 5n$

b) If the dimensions L of the prism are tripled, the new volume will be

$V' = (3L)^3 = 27L^3 = 27V$

so it will increase by a factor of 27.

7 0

3 years ago

Help me this is due today pls help please make sure the answer is correct

Annette [7]

Answer:

12*365 = 4380

4380 miles

Step-by-step explanation:

3 0

3 years ago

Use the numbers 8, 6, and 2 and one operation to write and expression that includes an exponent and has a value of 8. Use each n

Vesnalui [34]

Answer:

$6+2^{1}=8 \Rightarrow 6+2=8 \Rightarrow 8=8$

Step-by-step explanation:

1) One solution is to write, as our exponent:

$2^{1}=2$

2) Because this is special case of the Exponents Law, valid for every base ≠ 0.

$a^{1}=a$

3) Hence, including an exponent the numbers 6, 2 whose value is eight.

$6+2^{1}=8 \Rightarrow 6+2=8 \Rightarrow 8=8$

Therefore our expression is true

4 0

3 years ago

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