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3 years ago

Which is equal to -(4 - 5)2 + 1?

Mathematics

2 answers:

Bess [88]3 years ago

7 0

Answer:

Step-by-step explanation:

Given that,

-(4 - 5)2 + 1

Not sure if the 2 at the back of the bracket is square or not..

I will solve both ways

First we will apply BODMAS, I.e solve the bracket first

-(4 - 5)2 + 1

-(-1)2 + 1

So note that - × - = +

Then,

(-1 × -2) + 1

2 + 1 = 3

Let assume it is squared

-(4 - 5)² + 1

-(-1)² + 1

-(-1 × -1) + 1

-(1) + 1

-1 + 1

So the answer is 0

I hope this help!!! cc sadiku

DiKsa [7]3 years ago

4 0

Answer:

It is equal to 3

Step-by-step explanation:

Follow PEMDAS to find the answer

Parenthasis first

- ( -1 ) * 2 + 1

No exponents

Multiplication ( left to right)

1 * 2 + 1

2 + 1

No division

Addition

No subtraction

At the end, you get 3

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Answer:

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3 years ago

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skelet666 [1.2K]

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3 years ago

Read 2 more answers

A cable car begins its trip by moving up a hill. As it moves up, it gains elevation at a constant rate of 50 feet/minute until i

asambeis [7]

Answer:

he cable car's elevation will be 750 feet after 15 minutes

Step-by-step explanation:

Given:

elevation, e =2,000 feet

rate, I = 50 feet/minute

The equation that models the car's elevation, e, after t minutes is e = |t

The cable car's elevation will be 750 feet after how many minutes?

since, e = It

for 2,000 feet = 50 feet/minute * t

t = 2000/50 =40minutes

using the same constant rate, I for 750ft, T =

since, e = It

for 750 feet = 50 feet/minute * t

t = 750/50 =15minutes

3 0

3 years ago

Nicole runs a farm stand that sells bananas and peaches. Each pound of bananas sells for $2 and each pound of peaches sells for

stepan [7]

Answer:

The required system of equations is:

2x + 3.25y = 231.75

x = y + 3

where x is the number of pounds of bananas and y is the number of pounds of peaches

Explanation:

1- Defining the variables:

Assume that the number of pounds of bananas sold is x

Assume that the number of pounds of peaches sold is y

2- Setting the system of equations:

We are given that:

i. Each pound of bananas sells for $2

Money gained from selling x pounds of bananas is 2x

ii. Each pound of peach sells for $3.23

Money gained from selling y pounds of peaches is 3.25y

iii. Nicole made $231.75 in total. This means that:

2x + 3.25y = 231.75 .................> equation I

iv. Nicole sold 3 more pounds of bananas than pounds of peaches. This

means that:

pounds of bananas = pounds of peaches + 3

x = y + 3 ..................> equation II

3- Solving the equations (if required):

In equation II, we have: x = y + 3

Substitute with equation II in equation I and solve for y as follows:

2x + 3.25y = 231.75

2(y+3) + 3.25y = 231.75

2y + 6 + 3.25y = 231.75

5.25y = 231.75 - 6

5.25y = 225.75

y = 43

Substitute with y in equation II to get x:

x = y + 3

x = 43 + 3 = 46

Based on the above:

Number of pounds of bananas = x = 46 pounds

Number of pounds of peaches = y = 43 pounds

Hope this helps :)

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3 years ago

What the heck in math is 12/tan34

natulia [17]

Answer:

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Step-by-step explanation:

you only use your calculator and you put the tan 34 and gives you the answer

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4 years ago