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kondor19780726 [428]
2 years ago
10

Which of the following is equivalent to 5−1?

Mathematics
1 answer:
Troyanec [42]2 years ago
5 0

Answer:

what r the options

Step-by-step explanation:

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Simplify: (2x + 8)(7x2 - 9x - 5)
kondaur [170]

Answer:

-18x^2 -54x + 72

Step-by-step explanation:

8 0
2 years ago
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Find the value of y.​
Bess [88]

Answer:

=6√3 the third option.

Step-by-step explanation:

We can use the Pythagoras theorem to find the value of y. We need two equations that include y.

a²+b²=c²

c=9+3=12

x²+y²=12²

x²=144 - y².........i (This is the first equation)

We can also express it in another way but let us find the perpendicular dropped to c.

perpendicular²= x²-3²=x²-9 according to the Pythagoras theorem.

y²=(x²-9)+9²

y²=x²+72

x²=y²-72....ii( this is the second equation

Let us equate the two.

y²-72=144-y²

2y²=144+72

2y²=216

y²=108

y=√108

In Surd form √108=√(36×3)=6√3

y=6√3

8 0
3 years ago
2.) What is the value of V78 to the nearest tenth?
DENIUS [597]

Answer:

80.

Step-by-step explanation:

When multiplying if the tenth place is " 7" then we look " next door" which is the ones and 8 is great then 5 so we count to from 8 to see when the next number ending in 0 would be in this case its 80. ( if the number is 4 or less count backwards to a number ending with 0  which in that case would have been 70 ) but the answer is 80.

4 0
3 years ago
Blank divided by blank equals 6 what is the two blanks
Travka [436]
36 by 6 blah blah blah
4 0
2 years ago
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I neeed help .......................................................
ycow [4]

Answer:

p = 5

Step-by-step explanation:

cross-multiply: 9 = p + 4

p = 5

5 0
3 years ago
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