All categories

4 years ago

Pls give me the answer

Mathematics

1 answer:

natima [27]4 years ago

5 0

49a²+14a18b+81b²

When you square a binomial, you have to multiply the entire thing by itself, so in this case it should be: (7a+9b) (7a+9b).

Now you have to use FOIL (or First, Outside, Inside, Last) to simplify the equation. When you set up FOIL, it should look like this:
7a×7a, 7a×9b, 7a×9b, 9b×9b. Simplify this and you should get 49a²+7a9b+7a9b+81b². Add like terms and you get 49a²+14a18b+81b².

You might be interested in

Solve 1,080 = B + 30

valentina_108 [34]

Answer:

B=1,050

Step-by-step explanation:

hope this helped! :D

7 0

3 years ago

Read 2 more answers

Which gives 28 + 24 as a product of the GCF and a sum?

yanalaym [24]

Answer:

I believe it is A

Step-by-step explanation:

Let me know if it is wrong

3 0

3 years ago

Who plays cold wa?r<br>

AveGali [126]

Not me lol sorry though

3 0

3 years ago

Write a rule for the transformation of triangle RST. (x,y) --> ( , )

bonufazy [111]

Answer:

A rule for the transformation of triangle RST is (7, -3)

5 0

3 years ago

write a variable expression to describe the rule of each progression then calculate the term 20 or 20 term1.) 6,12,18,24,...2.)3

Dmitriy789 [7]

1) 6, 12,18,24

The rule used here is: Arithmetic Progression or Linear sequence

From the data above:

a = 6, d = 6

$\begin{gathered} T_{n\text{ }}=\text{ a + (n-1)d} \\ \text{where n = 20} \\ T_{20\text{ }}=\text{ a + (20-1)d} \\ T_{20\text{ }}\text{ = a + 19d} \\ T_{20\text{ }}\text{ = 6 + 19}\times6 \\ T_{20\text{ }}\text{ = 6 + 114} \\ T_{20\text{ }}\text{ = 120} \end{gathered}$

2) 3,6,9,12

The rule used here is: Arithmetic Progression or Linear sequence

From the data above:

a = 3, d = 3

$\begin{gathered} T_{n\text{ }}=\text{ a + (n-1)d} \\ \text{where n = 20} \\ T_{20\text{ }}=\text{ a + (20-1)d} \\ T_{20\text{ }}\text{ = a + 19d} \\ T_{20\text{ }}\text{ = 3 + 19 }\times3 \\ T_{20\text{ }}\text{ = 3 + 57} \\ T_{20\text{ }}\text{ = 60} \end{gathered}$

3) 1,5,9,13

The rule used here is: Arithmetic Progression or Linear sequence

From the data above:

a = 1, d = 4

$\begin{gathered} T_{n\text{ }}=\text{ a + (n-1)d} \\ \text{where n = 20} \\ T_{20\text{ }}=\text{ a + (20-1)d} \\ T_{20\text{ }}\text{ = a + 19d} \\ T_{20\text{ }}\text{ = 1 + 19 }\times4 \\ T_{20\text{ }}\text{ = }1\text{ + 76} \\ T_{20\text{ }}\text{ = }77 \end{gathered}$

5 0

1 year ago

Pls give me the answer ​

Pls give me the answer