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ELEN [110]
3 years ago
7

Solve for x: 2x squared-1=-9

Mathematics
1 answer:
Troyanec [42]3 years ago
3 0

Answer:

x=-2

Step-by-step explanation:

-9+1=-8 so 2x squared =-8

x=-2

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If |lm and m&lt;6 = 4x - 15 and m&lt;7 = x+30, then m&lt;6 =<br> 35<br> 45<br> 39<br> 15
pentagon [3]

Answer:

∠ 6 = 45°

Step-by-step explanation:

∠ 6 and ∠ 7 are alternate angles and are congruent, thus

4x - 15 = x + 30 ( subtract x from both sides )

3x - 15 = 30 ( add 15 to both sides )

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4 0
3 years ago
Please help me please!!
Tpy6a [65]

Answer:

Extracting out that inner right angle.

Hypotenuse = 8

Height = h

Adjacent :

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3 years ago
A phone company charges 50 cents per minute during the daytime and 10 cents per minute at night.
Gala2k [10]

Answer:

You could talk on the phone for 200 minutes at night, or 40 minutes during the day.

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4 0
2 years ago
The formula for electrical power is P, is P= I^2 R, where I is current and R is resistance. The formula for I in terms of. P and
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Ans

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3 years ago
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quester [9]

Divide the perimeter by 2, this will give you the sum of one length and one width.

68/2 = 34 yards

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34 - 10 = 24

24 /2 = 12

The width is 12 yards.

The length is 12 + 10 = 22 yards.

5 0
3 years ago
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