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meriva
3 years ago
7

Mathematics Help Please!!

Mathematics
2 answers:
Fantom [35]3 years ago
8 0
Https://us-static.z-dn.net/files/da0/898a932883d3d078dd059fa2a97c67a7.jpeg

Nikitich [7]3 years ago
8 0
To solve this fraction we have to reduce to the same denominator, but prior to reducing, note that one of the denominators x²-4 could be expanded to:
(x-2)(x+2)   [remember a² - b² =n(a-b)(a+c)]

Let the denominator be (x-2)(x+2),

2/(x-2)(x+2) -(x-2)/(x-2)(x+2) = 3(x+2)/ (x-2)(x+2) ==>

2 -(x-2) = 3x+6 ==>2-x+2 = 3x+6 ==> x=-4/6 ==> x= - (1/2)
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Round to the nearest hundredth (Geometric Series problem)
WITCHER [35]

Answer:

15.98

Step-by-step explanation:

∑₁¹⁰ 8(\frac{1}{4} )^{n-1}

=8[1+\frac{1}{4} +\frac{1}{16} + ........ +t_{10}]

We have to use the formula of sum of a G.P. series with common ratio r < 1.

If the first term is a, the common ratio is r and the number of terms is n then the sum [a + ar + ar² + ar³ + ......... up to n terms] is given by  

[a \times\frac{1-r^{n} }{1-r}]

= 8[1 \times \frac{1-\frac{1}{2^{10} } }{1-\frac{1}{2} } ]

= 15.98 (Answer)

4 0
3 years ago
9. Teresa was taking her two children to the zoo. She purchased 1 adult ticket for herself and 2 children's
Irina18 [472]

Answer:

plz mark as brainliest

Step-by-step explanation:

$7.9

6 0
3 years ago
How to factor a polynomial in the form p^2-m^2 <br><br> HELP!!
lilavasa [31]

Answer: if you are going to put it like p^2-m^2 no one going to have that answer so I need the p and the m like for example the p=5 and the m=4

Step-by-step explanation: so it going to be like

Evaluate for m=4,p=5

5^2−4^2

=9

So I can’t answer how you put it

6 0
3 years ago
2 3/5 ÷ 2/7<br><br>9 1/10<br><br>26/35<br><br>6/35<br><br>4 1/10<br>choose one please
Step2247 [10]

Answer:

The answer is 91/10

Step-by-step explanation:

hope this helps

Solutions:

2 3/5÷2/7

13/5÷2/7

13/5×7/2

=13×7=91

=5×2=10

That's why the answer is 91/10

6 0
3 years ago
Twice jacks age plus five is 21. Write and solve an equation. How old is jack
Vera_Pavlovna [14]

Answer:

Jack is 8

Step-by-step explanation:

j= jacks age

2j+5 =21

This is the equation from Twice jacks age plus five is 21

We want to isolate j

Subtract 5 from each side

2j+5 =21

2j+5-5 = 21-5

2j = 16

Divide by 2

2j/2 =16/2

j =8

8 0
3 years ago
Read 2 more answers
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