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3 years ago

If a student receives 86 text messages during this class, how many text messages did he or she receive per minute?

Mathematics

1 answer:

frozen [14]3 years ago

7 0

Answer:

how long is the class

we need to know how long the class is to help you figure it out

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Maya plots the yards lost during a football game on a number line and labels it A. She plots Point B to the right of zero, a dis

SCORPION-xisa [38]

Answer:

im not sure bout it sorry mate.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

From a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men in the delegation?

Ostrovityanka [42]

Answer:

The expected number of men in the delegation is 0.86.

Step-by-step explanation:

Number of men = 3

Number of women = 4

A delegation of 2 is selected.

Let X be the number of men selected. So, the possible values of X are 0,1,2.

$P(X=0)=\dfrac{^3C_0\times ^4C_2}{^7C_2}=\dfrac{2}{7}$

$P(X=1)=\dfrac{^3C_1\times ^4C_1}{^7C_2}=\dfrac{4}{7}$

$P(X=2)=\dfrac{^3C_2\times ^4C_0}{^7C_2}=\dfrac{1}{7}$

The expected number of men in the delegation is

$E(x)=0\times P(X=0)+1\times P(X=1)+2\times P(X=2)$

$E(x)=0\times \dfrac{2}{7}+1\times \dfrac{4}{7}+2\times \dfrac{1}{7}$

$E(x)=\dfrac{6}{7}$

$E(x)\approx 0.86$

Therefore, the expected number of men in the delegation is 0.86.

4 0

2 years ago

Can cubic units be used to measure weight??

user100 [1]

Answer:

No, they can't.

Step-by-step explanation:

In geometry, cubic units can be defined as the units used to measure volume. The volume of a unit cube whose length, width and height are 1 unit each is 1 cubic unit. The length, width and height of the rectangular prism can be measured by counting the number of unit cubes.

3 0

2 years ago

PLS PLS PLS HELP IM BEHIND The first sequence rule is multiply by 3 starting from 4. The second sequence rule is add 8 starting

Alchen [17]

Answer:

Step-by-step explanation:

the first sequence starts

4 12 (3*4) 36 (3*12) 108 (3*36) ...

the second sequence starts

20 28 (8+20) 36 (8+28) 44 (8+36) ...

so, just by writing down a few elements you can see it already.

I knew it already before that just by thinking "the first sequence has only numbers that can be divided by 3. what is the first number of the second sequence that can be also divided by 3 ? oh, yeah, 36 !"

6 0

3 years ago

3 rational numbers between -2 and 0

pshichka [43]

Answer:

-19/10, -17/10 and -3/10 (or many other number you can writw between -20/10 to 0/10)

Step-by-step explanation:

-2/1+1/10 and 0/1+1/10 (converting to fraction)

LCM=10

-2×10/1×10 AND 0×10/1×10

-20/10 AND 0/10

-19/10, -17/10 and -3/10

4 0

2 years ago