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3 years ago

Here is an addition sentence.

Mathematics

1 answer:

kiruha [24]3 years ago

4 0

Answer: B. $3+(1+11)=15$

Step-by-step explanation:

1. By definition, the associative property of addition is:

$(a+b)+c=a+(b+c)$

2. Therefore, if you have the following expression:

$(3+1)+11=15$

You apply the Asociative property of addition by regrouping the numbers as following:

$3+(1+11)=15$

3. Then, you can conclude that the correct option is B.

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Vernon tossed a coin 20 times. The results were 8 head s and 12 tails. What is the experimental probability of tossing heads?

solmaris [256]

Answer:

2/5

Step-by-step explanation:

The experimental probability is

P (heads) = number of heads/ total tosses

= 8/20

= 2/5

8 0

3 years ago

teacher has 27 students in her class she asked the students to form as many groups of 4 as possible how many students are not be

stepan [7]

If there are 27 students in the class and they have to form as many groups of 4 as possible, you can calculate this using the following step:

27 / 4 = 6.75 = 6 3/4

Result: 27 students can form 6 groups of 4 students and 3 students have to form their own group.

4 0

2 years ago

What value of x and y will make the polygon a parallelogram?

o-na [289]

In a parallelogram, the diagonals bisect each other.
That being the case,
6x = 72

x = 12

AND

x-5 = y
72 -5 = 67

y=67
x = 72

and the diagonals measure
144 and 134

5 0

3 years ago

PLEASE HELP ME I REALLY NEED IT AND EVERYTIME I ASK A BOT ANSWERS

ludmilkaskok [199]

Answer:

I don't have a price of paper near by but I can explain how do it

Step-by-step explanation:

start by puting them in numerical order and tally up how many are under each number. this is going to give you how common each number is on the table. ex: if there is a 2 in every box it would get a 20/20 because it would fill every box. with that you should be able to find where the most common are as well as the rest of the answers. I'm sorry I couldn't help more

4 0

2 years ago

Find the slope of the line that passes through (10,4) and (7,9)

Mkey [24]

I will take you the steps to obtain the slopes passing two points

step 1 : list the parameters

$\begin{gathered} \text{from (10, 4)} \\ x_1=10,y_1=\text{ 4} \\ \text{from (7,9)} \\ x_2_{}=7,y_2=\text{ 9} \end{gathered}$

step 2: Apply the equation to obtain the slope between two points

$\begin{gathered} \text{slope = }\frac{rise}{fall}=\frac{y_2-y_1}{x_2-x_1} \\ \\ \Rightarrow\frac{9\text{ - 4}}{7\text{ - 10}}\text{ =}\frac{5}{-3} \\ \\ slope=-\frac{5}{3} \end{gathered}$

4 0

1 year ago