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3 years ago

Evaluate the expression below. 7×3−4×(225÷32)×2

Mathematics

1 answer:

Ainat [17]3 years ago

5 0

Step-by-step explanation:

The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

7×3 -4(225÷32)×2

7×3 -4(7.03)×2

21 - 8 (7.03)

21 - 56.25

= - 35.25

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PLEASEE HELPP

stiv31 [10]

Answer:

Step-by-step explanation:

From the given table, we have:

$y_{2}=4x^2$

⇒ $a=4(1)^2$

⇒ $a=4$

$y_{3}=4^x$

⇒ $b=4^1$

⇒ $b=4$

$y_{1}=4x$

⇒ $c=4(2)$

⇒ $c=8$

$y_{3}=4^x$

⇒ $d=4^2$

⇒ $d=16$

$y_{1}=4x$

⇒ $e=4(3)$

⇒ $e=12$

$y_{2}=4x^2$

⇒ $f=4(3)^2$

⇒ $f=36$ and

$y_{3}=4^x$

⇒ $g=4^3$

⇒ $g=64$

Therefore, the value of a,b,c,d,e,f and g is 4,4,8,16,12,36 and 64 respectively.

3 0

3 years ago

Read 2 more answers

A submarine at a depth of -40 feet dives 57 feet more. What is the new depth of the submarine comment for points?

mamaluj [8]

I’m pretty sure this is answer is 17.

3 0

3 years ago

Read 2 more answers

Whould anyone mind helping please. The first box says 6.25x+12x=30.75 the second box says 6.25x+12=30.75 3rd box says 6.25x+30.7

Snowcat [4.5K]

Answer:

The correct equation is: 6x+12 = 30.75

And 3 people went to the movies

Step-by-step explanation:

We will write the equation to represent this scenario.

Let x be the number of people who went for movies.

Then the price of ticket for x people will be: 6.25x

They spent $12 on refreshments and a total of $30.75 so the equation will be:

$6.25x+12=30.75$

solving the equation will give us total number of people

So,

$6.25x+12 = 30.75\\6.25x = 30.75-12\\6.25x = 18.75\\\frac{6.25x}{6.25} =\frac{18.75}{6.25}\\x = 3$

Hence,

The correct equation is: 6x+12 = 30.75

And 3 people went to the movies

7 0

3 years ago

Sid intended to type a seven-digit number, but the two 3's he meant to type did not appear. What appeared instead was the five-d

Papessa [141]

Answer:

21 ways

Step-by-step explanation:

number = 7 digit

5 digit no = 52115

to find out

How many different seven-digit numbers

solution

first we need to place the two missing 3s in the number 52115

we consider here two cases

case 1 the two 3's appear separated (like 532135 or 3521135)

case 2 the two 3's appear together (like 5332115 or 5211533)

Case 1 we can see that number type as _5_2_1_1_5_

place 3's placeholders show potential locations

( type a ) for 3's separated we will select 2 of 6 place and place 3 in every location so we do this 6C2 = (15) ways

and (type b): again use same step as _5_2_1_1_5_

here 3s together for criterion and we will select 1 of the 6 place and place both 3s here and there are 6 ways.

so that here will be 15+6=21 ways

If 3 and 3 are separate so 6C2 = 15 ways

If 3 and 3 are together so there = 6 ways

= 15 + 6 = 21 ways

8 0

3 years ago

PLEASE HELP ME

NISA [10]

b. 33

add all the members that is 500 and below

4+8+10+11=33

4 0

3 years ago