All categories

3 years ago

What is the first step to simplify the expression: [–23 – [5 · (2 – 4)]] ÷ 32

Mathematics

2 answers:

NemiM [27]3 years ago

7 0

Answer:

According to PEDMAS , We first simplify the PARENTHESES

[5 · (2 – 4)] = [5· -2] = -10

Step-by-step explanation:

Given expression [–23 – [5 · (2 – 4)]] ÷ 32

We have to find the first step to simplify the given expression.

We apply PEDMAS

P stands for PARENTHESES

E stands for EXPONENTS

D stands for DIVIDE

M stands for MULTIPLY

A stands for ADDITION

S stands for SUBTRACTION.

So, according to PEDMAS , We first simplify the PARENTHESES

Thus, [5 · (2 – 4)] = [5· -2] = -10

Mnenie [13.5K]3 years ago

4 0

Hello there, and thank you for posting your question here on brainly.

Short answer: 2 - 4

Why?

When you have an equation with parenthesis, you do those first. When you have parenthesis inside of parenthesis, you do that first.

Hope this helped you! ♥

You might be interested in

The questions are in the picture (I’LL GIVE BRAINLEST) PLEASEEEEEEEEEEE HELPPPPPPP

PIT_PIT [208]

Answer:

i think part A

1)3:2

2)3:4

8 0

2 years ago

A credit card company offers a cash back program on transactions. For every transaction over $100 the customer gets $3 back. F

Elena L [17]

The first equation is $3 times 9 = $27 the next equation iis $1 times 2 = $1
So you do 9 transactions over $100 and 2 transactions of $100 or lower.

5 0

3 years ago

Read 2 more answers

How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athletic footwear? We want 98

Irina18 [472]

Answer:

$n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67$

So the answer for this case would be n=67 rounded up

Step-by-step explanation:

Information given

$\bar X$ represent the sample mean for the sample

$\mu$ population mean

$\sigma=1400$ represent the sample standard deviation

n represent the sample size

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =400 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And the critical value would be $z_{\alpha/2}=2.33$ , replacing into formula (b) we got:

$n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67$

So the answer for this case would be n=67 rounded up

8 0

3 years ago

What is m angle 1? 35° 40° 55° 70°

gizmo_the_mogwai [7]

9514 1404 393

Answer:

(b) 40°

Step-by-step explanation:

Angle x and the one marked 70° are alternate interior angles, so are congruent. The sum of the two base angles of the isosceles triangle is ...

x° +x° = 70° +70° = 140°

So, the remaining angle 1 in the triangle is ...

180° -140° = 40°

∠1 = 40°

5 0

2 years ago

Use the formula an = d (n − 1) + aj to write a formula for the arithmetic sequence below.

xenn [34]

Answer:

$a_{n}$ = 4n - 2

Step-by-step explanation:

There is a common difference d between consecutive terms in the sequence, that is

6 - 2 = 10 - 6 = 14 - 10 = 18 - 14 = 4

This indicates the sequence is arithmetic with n th term

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = 4 , thus

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

3 0

3 years ago