2 years ago

1) 9n2 - 25 Please show work

Mathematics

1 answer:

Vlad1618 [11]2 years ago

6 0

Answer:

(3n + 5)(3n − 5)

Explanation:

[ Factor ]

9n2 − 25

= (3n + 5)(3n − 5)

You might be interested in

Need help ASAP. Question in photo. Will mark brainliest if correct

ioda

Answer:

Step-by-step explanation:

I did this question today, pls lmk if u get it right

5 0

2 years ago

In triangle $ABC,$ point $D$ is on $\overline{AC}$ such that $AD = 3CD = 12$. If $\angle ABC = \angle BDA = 90^\circ$, then what

Neporo4naja [7]

Answer:

$BD=4\sqrt{3}\ units$

Step-by-step explanation:

we know that

$AD=12\ units$

$3CD=12$ ----> $CD=4\ units$

see the attached figure to better understand the problem

Triangles ABD and BCD are similar by AA Similarity Theorem

Remember that

If two figures are similar, then the ratio of its corresponding sides is proportional

$\frac{BD}{AD}=\frac{CD}{BD}$

substitute the given values

$\frac{BD}{12}=\frac{4}{BD}$

$BD^2=48$

$BD=\sqrt{48}\ units$

simplify

$BD=4\sqrt{3}\ units$

8 0

2 years ago

Name the postulate or theorem, 50 points please help!

max2010maxim [7]

Hi!

When you use postulates and theorems, you need to make sure to only use the given information that you know. Look for the given statements, and congruence marks on the figure. Those are also considered given.

By looking, you are given an angle and a side. The side comes first. SU=TV.

So, that makes it so Side-Angle-Side would be the best option.

I hope this helps!

7 0

3 years ago

Read 2 more answers

16x4<br> what is the answer?

Viefleur [7K]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Which algebraic expression represents this phrase?<br> the product of 50 and the number of employees

sergij07 [2.7K]