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3 years ago

Solve for x.

Mathematics

2 answers:

Leto [7]3 years ago

5 0

Answer:

x²+9x=0

x(x+9)=0

either

x=0

x=-9

OverLord2011 [107]3 years ago

4 0

Answer:

A. 0, - 9

Step-by-step explanation:

Given

x² + 9x = 0

x (x + 9 ) = 0

Either

x = 0

or,

x + 9 = 0

x = - 9

Hope it will help :)

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How many solutions does the following equation have 3(X + 9) = 2x + 54

kotykmax [81]

Answer:

One solution.

Step-by-step explanation:

3(x + 9) = 2x + 54

3x + 27 = 2x + 54

3x + 27 - 2x = 2x + 54 - 2x

x + 27 = 54

x + 27 - 27 = 54 - 27

x = 27

8 0

3 years ago

Consider the function g(x) =-3(x-2) 2 + 3 what is the vertex

Margarita [4]

Answer:

The vertex is (2, 3)

Step-by-step explanation:

This is because the parent equation for problems like these is y=a(x-h)2 +k. The vertex is found through (h, k) and so with 2 as H and 3 as K, the vertex is (2,3).

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3 years ago

What expression is equivalent to 4 to the power of 4 times 4 to the power of -9

pogonyaev

4^4 * 4^(-9) = 4^(4-9) = 4^(-5) or 1/(4^5)

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2 years ago

Directions: Simplify the following expressions using the imaginary number.

drek231 [11]

Answer:

1 i(sqrt5)

2 7i

3 -9i

4 -64i

5 -5i(sqrt2)

6 -4i(sqrt3)

7 10i(sqrt3)

8 2i(sqrt2)

9 3i(sqrt7)

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Step-by-step explanation:

i is the square root of (-1). We can simplify each one as such.

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1 year ago

Place the following in order from least to greatest. 8,000,000 mm, 5 km, 7000,000 cm, 6,000 m

Nutka1998 [239]

Answer: 5km, 6000m, 8,000,000 mm, 7000000 cm

Step-by-step explanation:

Note that:

1km = 1,000,000mm

1m = 1000mm

1cm = 10mm

Therefore,

5 km = 5 × 1,000,000mm = 5,000,000mm

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6,000 m = 6000 × 1000 = 6,000,000mm

Therefore, from the least to the greatest will be:

5km, 6000m, 8,000,000 mm, 7000000 cm

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3 years ago