Answer:
edc
Step-by-step explanation:
I think because those all connect
Answer:
for question A the answer is 15 and for next answer is 25. question B answesr: 2nd: 3, 4,5,6,7,8. 3rd: 6,9,12,15,18 4th: 10,16,22,28,34,40..... you should get the rest by now. :)
Step-by-step explanation:
for question A you add 2 every number such as. 1 to 3 is 2. then 3 to 6 is 3 then 6 to 10 is 4 so 2, 3,4. then you figure out the same with question a part 2. for B here is an example 2nd- 3,4,5,6,7---- ypu just add one then for 3rd you add 2 then 4th you add 3... and on
Hey there!
We'll use our keyword
of, which means we're multiplying. For example:
1/2 of 6 means 1/2 times 6, which equals three.
In our case, we want one half <em>of</em> z, meaning one half times z. That means we have:
Now, we have to add the "five more". This means the quantity of one half of z is increased by 5, also known as adding 5. Therefore, we have:
Hope this helps!
Your answer is D. 16x² - 56xy + 49y².
A perfect square trinomial is the result of a squared binomial, like (a + b)². Using this example, the perfect square trinomial would be a² + 2ab + b², as that is what you get when you expand the brackets.
Therefore, to determine which of these is a perfect square trinomial, we have to see if it can be factorised into the form (a + b)².
I did this by first square rooting the 16x² and 49y² to get 4x and 7y as our two terms in the brackets. We automatically know the answer isn't A or B as you cannot have a negative square number.
Now that we know the brackets are (4x + 7y)², we can expand to find out what the middle term is, so:
(4x + 7y)(4x + 7y)
= 16x² + (7y × 4x) + (7y × 4x) + 49y²
= 16x² + 28xy + 28xy + 49y²
= 16x² + 56xy + 49y².
So we know that the middle number is 56xy. Now we assumed that it was (4x + 7y)², but the same 16x² and 49y² can also be formed by (4x - 7y)², and expanding this bracket turns the +56xy into -56xy, forming option D, 16x² - 56xy + 49y².
I hope this helps!
Answer:
also its 25
Step-by-step explanation:
hope i helped
