3 years ago

I need help with these math problems Answer with format17.1819.etc.

Mathematics

1 answer:

Gnoma [55]3 years ago

5 0

Answer:

17) 9.05

18) 15.13

19) 2.641

text me if u need help

Step-by-step explanation:

to get x you would need to get x alone by adding of subtracting

ex) 17 subtract .37 from both sides to get x ---> x = 9.42 - .37

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Simply the rational expression.state any restrictions on the variable. k2-k-2/k2-4k-5

hjlf

We are given

$\frac{k^2-k-2}{k^2-4k-5}$

Firstly, we will factor numerator and denominator

$\frac{k^2-k-2}{k^2-4k-5}=\frac{(k-2)(k+1)}{(k-5)(k+1)}$

Restrictions:

we know that denominator can not be zero

so, we can set denominator =0

and solve for k to get restrictions

$(k-5)(k+1)=0$

$k=-1,k=5$

Simplification:

$\frac{k^2-k-2}{k^2-4k-5}=\frac{(k-2)(k+1)}{(k-5)(k+1)}$

we can see that k+1 gets cancelled

so, we get

$\frac{k^2-k-2}{k^2-4k-5}=\frac{(k-2)}{(k-5)}$ ..........Answer

5 0

3 years ago

Please i really need help The perimeter of each shape is 3 units? True or False?

Verizon [17]

The perimeter of each shape is false

6 0

3 years ago

Read 2 more answers

-7/10+7/15+1/-20+-9/10+11/15+11/-20 what is the answer please help me .....!!!!

Nat2105 [25]

Answer:

-1

Step-by-step explanation:

-7/10+7/15+1/-20+-9/10+11/15+11/-20

= -7/10 + -9/10 + 7/15 + 11/15 + 1/-20 + 11/-20

= -16/10 + 18/15 + 12/-20

= -8/5 + 6/5 + -3/5

= (-8+6-3)/5

= -5/5

= -1

7 0

3 years ago

If one gallon of gas costs $3.50 how much would 3,5, and 7 gallons cost?

Lerok [7]

3 gallons= 10.5
5 gallons= 17.5
7 gallons=24.5

7 0

3 years ago

Read 2 more answers

Pleas help, I’ll mark as brainliest.

Lerok [7]

Answer:

don't know lol my boy hope this helps

3 0

2 years ago

I need help with these math problems Answer with format17.1819.etc.​

I need help with these math problems Answer with format17.1819.etc.