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nignag [31]
3 years ago
11

Multiply and Divide Integers Practice Worksheet -9(-8)=?

Mathematics
2 answers:
sergiy2304 [10]3 years ago
3 0
Answer: 72
Because nine times eight is 72
ikadub [295]3 years ago
3 0

Answer:

I think there is a site where you can learn and get the answers to, but I forgot what the site was called so please forgive me on that mistake and this site basically helps you on when you need to learn! And it’s fun and easy to use and your iq will grow higher the more you learn it from the site I hope this was helpful to you and sorry I forgotten what the site was called!

Step-by-step explanation:

You might be interested in
Central Middle School has 2,470 students and the ratio of students to teacher is 26:1. How many new teachers are needed to reduc
nataly862011 [7]
First, it would be helpful to find out how many teachers there are at the school.

2470 students x (1 teacher/26 students)=95 teachers

To find the number of teachers needed, just use the ideal ratio:
2470 students x (1 teacher/19 students)=130 teachers

So to reduce this ratio to 19:1, the school needs 130 teachers. To know how many new teachers the school needs, just subtract the ideal from the current amount.
130-95=35 new teachers needed
5 0
4 years ago
Aron flips a penny 9 times. Which expression represents the probability of getting exactly 3 heads? P (k successes) = Subscript
Nimfa-mama [501]

The expression represents the probability of getting exactly 3 heads is \rm= ^9C_3 \times (0.5)^3\times (0.5)^{6}.

<h2>Given</h2>

Aron flips a penny 9 times.

We have to determine

Which expression represents the probability of getting exactly 3 heads?

<h3>What is binomial distribution?</h3>

The binomial distribution is determined as the probability of mass or discrete random variable which yields exactly some values.

The binomial probability formula shown has variables which represent:

\rm= ^nCr \times p^r\times (1-p)^{n-r}

Where n is the total number of trials (here, we flip penny 9 times, hence n = 9).

r is the number we want to find (here, we want the probability of 3 heads, so r = 3).

p is the probability of success (here, success means getting heads.

So, in a coin flip the probability of heads is always 1/2, so p = 1/2).

Therefore,

The expression represents the probability of getting exactly 3 heads is;

\rm= ^nCr \times p^r\times (1-p)^{n-r}\\\\\rm= ^9C3 \times (0.5)^3\times (1-0.5)^{9-3}\\\\= ^9C3 \times (0.5)^3\times (0.5)^{6}

Hence, the expression represents the probability of getting exactly 3 heads is \rm= ^9C_3 \times (0.5)^3\times (0.5)^{6}.

To know more about Binomial Distribution click the link given below.

brainly.com/question/7236644

4 0
3 years ago
The line 2x + 3y - k = 0 bisects the line segment joining the points A(4, -3) and B(-2, 5). Find the value of k.​
lisabon 2012 [21]

Answer:

5

Step-by-step explanation:

The midpoint of segment AB is (1, 1).

Substituting these coordinates into the equation of the line,

2(1)+3(1)-k=0 \\ \\ 5-k=0 \\ \\ k=5

3 0
2 years ago
What number does this Roman numeral represent?<br><br> DCCLXXXI
avanturin [10]

k there is your answer. be happy. UwU

7 0
4 years ago
Read 2 more answers
3(x+6)+6x+9=7x+8 solve for x
fomenos

Answer:

x=-19/2

Step-by-step explanation:

3(x+6)+6x+9=7x+8

3x+18+6x+9=7x+8

9x+27=7x+8

9x+27-7x=8

2x+27=8

2x=8-27

2x=-19

x=-19/2

7 0
3 years ago
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