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SpyIntel [72]
3 years ago
12

Which is the correct first step -3x+2-5x-7=4x+2

Mathematics
1 answer:
Advocard [28]3 years ago
5 0

The answer to the question is to combine like terms first:

-8x - 5 = 4x + 2

Isolate the variable x:

-5 = 12x + 2

12x = -7

x = -7/12

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Which expression is equivalent to 16 in exponential form?
Lunna [17]

Answer:

4 with the exponent or base of 2

Step-by-step explanation:

To get 16 in exponential form would be

4 × 4 = 16

3 0
3 years ago
Can someone explain to me how to do this? I just don't get it.
Maksim231197 [3]

Answer:

x=130

Step-by-step explanation:

triangle=180

180-34-96=50

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180-50=130

7 0
2 years ago
In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq
soldi70 [24.7K]

Answer:

see explanation

Step-by-step explanation:

let pq = x

given oq - pq = 1 then oq = 1 + x

Using Pythagoras' identity, then

(oq)² = 7² + x²

(1 + x)² = 49 + x² ( expand left side )

1 + 2x + x² = 49 + x² ( subtract 1 from both sides )

2x + x² = 48 + x² ( subtract x² from both sides )

2x = 48 ( divide both sides by 2 )

x = 24 ⇒ pq = 24

and oq = 1 + x = 1 + 24 = 25 ← hypotenuse

sinq = \frac{opposite}{hypotenuse} = \frac{7}{25}

cosq = \frac{adjacent}{hypotenuse} = \frac{24}{25}



6 0
3 years ago
Sam takes 2 pages of notes during each hour of class. After attending 16 hours of class,
Ann [662]

Answer:

32 pages of notes

Step-by-step explanation:

16*2= 32 (Hours*Pages per hour)

Hope this helps! :)

3 0
2 years ago
Nick had 3 1/4 bottles of water for his wrestling practice. When he finished he had 1 2/4 bottles of water left. He said he used
sweet-ann [11.9K]
1 2/4+2 1/4 ≠ 3 1/4 but 1 2/4+2 1/4 = 3 3/4
7 0
3 years ago
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