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Tpy6a [65]
2 years ago
11

Help me please... At least an explanation

Mathematics
1 answer:
In-s [12.5K]2 years ago
4 0

Answer:

do u still need this question answeered?

Step-by-step explanation:

You might be interested in
What is the solutions of the equation 2 (x+2) ^2-4=28
JulsSmile [24]

Answer:

x = 2            x = -6

Step-by-step explanation:

2 (x+2) ^2-4=28

Add 4 to each side

2 (x+2) ^2-4+4=28+4

2 (x+2) ^2= 32

Divide by 2

2/2 (x+2) ^2=32/2

(x+2)^2 = 16

Take the square root of each side

sqrt((x+2)^2) =±sqrt( 16)

x+2 = ±4

Subtract 2 from each side

x+2-2 = -2±4

x = -2±4

x = -2+4      and x = -2-4

x = 2            x = -6

3 0
3 years ago
Hey! any help is appreciated!!
igomit [66]

Step-by-step explanation:

48 us the correct answer

5 0
3 years ago
Hurry pleaseeee taking a test Which expression is equivalent to 30°? Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2
nika2105 [10]

Answer:

Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)

Step-by-step explanation:

According to trigonometry identity;

Cos 30° = √3/2

To get the expression equivalent to 30°, we will take the inverse of both sides as shown;

Cos^-1(cos 30°) = cos^-1(√3/2)

The arccos will cancel out the cos on the left hand side of the equation to have;

30° = cos^-1(√3/2)

Hence 30° is equivalent to inverse of cosine of √3/2 or Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)

8 0
2 years ago
Read 2 more answers
(a)/(2a)+(4)/(3a^(2)) ayuda por favor
Irina-Kira [14]

Answer:

3a^2+8/6a^2

Step-by-step explanation:

there ya go hope this helps

5 0
2 years ago
How many positive two digit numbers are divisible by 4?
frutty [35]
There are 24 positive 2 digit numbers divisible by 4.

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96
4 0
3 years ago
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