All categories

3 years ago

Evaluate the expression. - 4(2 - 5)2 + 82

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

7 0

Answer:

106

Step-by-step explanation:

Ok this question is a bit confusing but once you understand the concept you will be able to answer the question correctly

Always know that bracket is solved first once it is found in the question

So back to the question

-4(2-5)2+82

So let's get to work...

Bracket first

-4(-3)2+82

Multiply with the number at the front then followed by the one at the back

(+12)2+82

24+82

106

Therefore the final answer is 106

I believe you understand how we get the answer...just be careful when solving this kind of question... simple

You might be interested in

Enter the explicit rule for the sequence

Softa [21]

Let's take a look at the first few numbers in the sequence based on the given rule:

$a_{1}=6\\ a_{2}= \frac{1}{4}(6)\\ a_3= \frac{1}{4}\big( \frac{1}{4}\big)6= \big(\frac{1}{4}\big)^2(6)\\ a_{4}= \frac{1}{4} \big(\frac{1}{4}\big)^26= \big(\frac{1}{4}\big)^3(6)$

Inspecting this pattern it seems like the power $\frac{1}{4}$ is being raised to is always one less than the number of the sequence, so if we were on the nth number in the sequence, that part of the expression would be $\big(\frac{1}{4} \big)^{n-1}$ . We also know that we'll be multiplying whatever we get from that by 6, so we can write the full explicit rule for our sequence as

$a_n=6\big( \frac{1}{4} \big)^{n-1}$

Where $a_n$ is the nth number in our sequence.

8 0

3 years ago

HELP PLEASE!<br>Find the value of x that makes m∥n.

Helen [10]

Answer:

Value of x = 10

4 0

3 years ago

Which of the following is the solution of –6x – 17 = 19?

natita [175]

-6x - 36 = -6 • (x + 6)

x = -6
<span>
</span>

6 0

2 years ago

Read 2 more answers

A farmer wants to plant an apple orchard. His design consists of 10 rows of trees, where each row is 29.79 feet long. When he ge

Elis [28]

First divide 29.79 feet by 6
$\frac{29.79}{6} = 4.97$
But since you can't plant only a fraction of a tree, you can plant a maximum of 4 trees per row.
Now there are ten rows so...
10×4 = 40
You can plant 40 trees at the maximum.

7 0

3 years ago

in the question " Brianna is getting materials for a project. Her teacher gives her a container that has 0.15 L of liquid in it.

devlian [24]

0.15*0.4=0.06
you just multiply it

6 0

3 years ago