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3 years ago

Helppppppppppppppp asap

Mathematics

2 answers:

babymother [125]3 years ago

5 0

Answer:

what do you need help with ^_^

Step-by-step explanation:

Aleonysh [2.5K]3 years ago

4 0

Answer:

First, you need a mask that says Steelers, not Cowboys.

Step-by-step explanation:

First, get a mask that says Steelers.

Second throw the Cowboys mask in the trash.

I hope I helped!

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Help ? I need steps on how to do this

Furkat [3]

Answer :- 

the quotient is ( 4x² - 5x + 7 )

Step-by-step explanation:

[ Refer to the attachment for steps ]

We have to eliminate the highest degree coefficient in each step.

And as in division of normal numbers we subtract the things here we do the same ,

but while subtracting we have to take care about the signs !

The negative sign changes the negative sign into positive sign and positive sign into negative sign.

Whereas , a positive sign don't changes the sign.

8 0

3 years ago

Prove Forall x elementof Z, x^2 - 5x - 1 is odd.

Diano4ka-milaya [45]

Answer with Step-by-step explanation:

Let Z be a set of integers

We have to prove that $x^2-5x-1$ is odd for all value of x $\in$ Z.

There are two cases

1.When x is an odd integer number

2.when x is even integer number

1.When x is an odd integer number

When x is positive odd integer

Then $x^2$ is positive odd number (because square of odd positive number is always positive an odd number )

5x is also odd number

-5x -1 = -even number

Suppose x=3

Then -15-1=-16

Odd number - even number=Odd number

Hence , $x^2-5x-1$ is an odd number .

When x is negative odd number

Then x square is positive odd number and 5x is negative odd term term

Therefore,odd number + odd number -1=Even number -1=Odd number

Hence $x^2-5x-1$ is an odd number.

2.When x is an even number

When x is positive even number

x square is positive even number and 5x is positive even number

Even number -Even number -1 =Even number -odd number =Odd number

Suppose x=4

$x^2-5x-1$ =16-20-1=-5=Odd number

When x is negative even number

Then x square is positive even number and 5x is negative even number

$x^2-5x-1$ =Even number +Even number -1=Even number -1=Odd number

Hence, for all elements of Z $x^2-5x-1$ is odd.

7 0

3 years ago

Compare.Write <,>,or = 25 lb____ 384 oz

raketka [301]

25 lb > 384 oz because 25 pounds is 400 ounces.

5 0

3 years ago

Read 2 more answers

One container is filled with mixture that is 25% acid. A second container is filled with a mixture that is 55% acid. The second

algol13

Answer:

Therefore the third container contains $\frac{735}{17}\%$ = 43.23 % acid.

Step-by-step explanation:

Given that, One container is filled with the mixture that 25% acid. 55% acid is contain by second container.

Let the volume of first container be x cubic unit.

Since the volume of second container is 55% larger than the first.

Then the volume of the second container is

$= (V\times \frac{100+55}{100})$ cubic unit.

$=\frac{155}{100}V$ cubic unit.

The amount of acid in first container is

$=V\times \frac{25}{100}$ cubic unit.

$=\frac{25}{100}V$ cubic unit.

The amount of acid in second container is

$=(\frac{155}{100}V \times \frac{55}{100})$ cubic unit.

$=\frac{8525}{10000}V$ cubic unit.

Total amount of acid $=(\frac{25}{100}V+\frac{8525}{10000}V)$ cubic unit.

$=(\frac{2500+8525}{10000}V)$ cubic unit.

$=(\frac{11025}{10000}V)$ cubic unit.

Total volume of mixture $=(V+\frac{155}{100}V)$ cubic unit.

$=\frac{100+155}{100}V$ cubic unit.

$=\frac{255}{100}V$ cubic unit.

The amount of acid in the mixture is

$=\frac{\textrm{The volume of acid}}{\textrm{The amount of mixture}}\times 100 \%$

$=\frac {\frac{11025}{10000}V}{\frac{255}{100}V}\times 100\%$

$=\frac{735}{17}\%$

Therefore the third container contains $\frac{735}{17}\%$ acid.

5 0

3 years ago

What is the missing number 7 x ( ? x 9) = 63

GrogVix [38]

The ? is 1.

7*(9*1)=63

Hope this helps!!

6 0

3 years ago