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4 years ago

Please help. 44 point's

Mathematics

1 answer:

bagirrra123 [75]4 years ago

3 0

Answer:

25
(5+4)*2 +6 -2*2 -1

Step-by-step explanation:

1. Per the order of operations, do the exponentiation first, then the multiplication, then the addition:

= 6*7 -9*9 +64

= 42 -81 +64

= -39 +64

= 25

2. The expression given evaluates to ...

5 +4*2 +6 -2*2 -1 = 5 + 8 + 6 - 4 - 1 = 14

If you realize that the last three terms add to 1 and the first two terms can be rearranged to (5 +4)*2 = 18, then you can see that a sum of 19 is easily achievable. Parentheses are needed only around the first two numbers:

(5 +4)*2 +6 -2*2 -1 = 19

According to the order of operations, this is ...

9*2 +6 -2*2 -1 . . . . . operations inside parentheses are first

= 18 +6 -4 -1 . . . . . . multiplication is next

= 24 -4 -1 . . . . . . . . . sums are carried out left to right

= 20 -1

= 19

_____

The attachments show these expressions evaluated using the Google calculator. It can be relied upon to follow the order of operations exactly.

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3 years ago

You have a coupon for $5 off your total bill at Mama's Meals on Main a. How much will you pay after using the coupon if your bil

HACTEHA [7]

Answer :

(a) Amount paid after using the coupon = $b - $5 = $(b-5)

(b) Amount paid = $23.45 - $5 = $(23.45-5) = $18.45

Amount paid = $54.83- $5 = $(54.83-5) = $49.83

Step-by-step explanation :

As we are given that:

Amount of coupon = $5

If amount of total bill = $b

Now we have to calculate the amount paid after using the coupon.

Amount paid after using the coupon = Total amount of bill - Amount of coupon

Amount paid after using the coupon = $b - $5 = $(b-5)

Now we have to calculate the amount paid if bill was $23.45.

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Amount paid = $23.45 - $5 = $(23.45-5) = $18.45

Now we have to calculate the amount paid if bill was $54.83.

Amount paid after using the coupon = Total amount of bill - Amount of coupon

Amount paid = $54.83- $5 = $(54.83-5) = $49.83

6 0

4 years ago

A line segment is formed by connecting two points located at (-4,2) and (2,-1). What is the slope of this line segment? A.-3/8 B

Scorpion4ik [409]

The formula for slope is
m= (y₂-y₁)/(x₂-x₁)
you can plug in the points that you are given to find the slope
m= (-1-2)/(2-(-4)
m= -3/6

the slope is -3/6 which reduced to -1/2

so the answer would be
c) -1/2

hope this helped!

3 0

3 years ago

Evaluate f(x) = 2|x – 5| for f(–5) and f(0).

Elanso [62]

Answer:

f(–5) = 20, f(0) = 10

Step-by-step explanation:

f(-5):

f(-5) = 2|-5 -5|

f(-5) = 2|-10|

f(-5) = 2(10)

f(-5) = 20

f(0):

f(0) = 2|0 - 5|

f(0) = 2|-5|

f(0) = 2(5)

f(0) = 10

7 0

3 years ago

I need help with this

larisa [96]

Answer:

Not similar

Step-by-step explanation:

Even though

8/2=16/4,

10/3 does not have any relation to the rest. Still make sure if im right, but hope this helps!

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4 years ago