All categories

2 years ago

PLEASE HELP making Brainliest if correct

Mathematics

1 answer:

Oksana_A [137]2 years ago

6 0

Can’t see the whole question, but they are congruent by ASA (if that is what they asked)

You might be interested in

Show that 551 is a rational by writing it in the form a/b, where a and b are integers

igor_vitrenko [27]

Answer:

551/1

Step-by-step explanation:

$551 = \dfrac{551}{1}$

Any integer can be written as a rational number with a denominator of 1.

3 0

2 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

olga nikolaevna [1]

Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

$=4(4^{n-1})-6(-1)^{n}+8(-1)^{n}=4^n+2(-1)^n=a_n$

then the sequence solves the recurrence relation.

4 0

3 years ago

If 150 empty water bottles weigh 4.5 pounds what do you expect 90 water empty bottles to weigh?

MakcuM [25]

It's 2.7 pounds because I set up a proportion of 150 over 90 = 4.5 over X and multiplied 90 * 4.5 divided by 150

6 0

2 years ago

Read 2 more answers

In a square, one pair of opposite sides was made 50% longer and the other pair of opposite sides was made 50% shorter

omeli [17]

Sorry, maybe is too late for you, But the answer is:
For example: 4 x 4=16cm² if <span> one pair of opposite sides was made 50% longer and the other pair of opposite sides was made 50% shorter
It became: 6 x 2=12cm</span>²
12/16=0.75
So, the 75% <span>of the square’s area is the area of the new rectangle.</span>

8 0

2 years ago

HELP!!!!!!!!!! WILL GIVE BRAINLY!!!!!!!

atroni [7]

Answer:

141 $in^{2}$