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Serjik [45]
3 years ago
15

Fractions are hard... Or I'm just to lazy to try and do them.

Mathematics
1 answer:
notka56 [123]3 years ago
5 0
Answer: C) 3/2

Explanation: In math, the reciprocal is the inverse of a number or value. Simply, the number when flipped. Knowing this, one can flip the fraction to find the reciprocal, in this case turning 2/3 into 3/2.

Hope this helps :)
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Which expression is equivalent to
Nutka1998 [239]

Answer:1/5

if u do the work in ur head by adding and divide then multiplying the fractions and then divided it by 2.231 u get 1/5 on a calculator

8 0
2 years ago
How many ways can two marbles be chosen from a set of five marbles?<br> 5<br> 10<br> 15<br> 20
PtichkaEL [24]

Answer:

The answer is 20.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the value of x.<br><br> log 3 x = 4<br><br> A.) 7<br> B.) 12<br> C.) 27<br> D.) 81
lakkis [162]

Hello from MrBillDoesMath!

Answer:

Choice D, 81

Discussion:

By log 3x = 4 I presume that "3" is the base not a multiplier of x. Assuming it is the base, then the equation is equivalent to

x = 3^4

  = 81

This is Choice D.


Thank you,

MrB

8 0
3 years ago
9x^2-25<br> Yea, it confused me too I need this explained to me pls and thank you.<br>​
Veseljchak [2.6K]

Answer:

What this is is factoring and these are both perfect squares.

(3x-5)(3x+5) is the answer.

Step-by-step explanation:

First we take the 9x^2-25 and split in in two statements

(3x-5) (3x+5)

then foil to check it

first side: 3x*3x=9x^2

outside: 3x*5=15x

inside: -5*3x=-15x

last: -5*5=-25

then put it together

9x^2+15x-15x-25

the 15x and -15x cancel each other out so you're left with 9x^2-25

4 0
3 years ago
Help please! I’m confused!
Ivan

Answer:

1936

Step-by-step explanation:

x² + 87 = (x +1)²

x² + 1)² - x² =87

(x² + 2x +1) = 87

2x + 1 = 87 ⇒ x = 44

44² = 1936

8 0
3 years ago
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