2 years ago

Which statement correctly describes the expression (-8)(-9)

Mathematics

2 answers:

wel2 years ago

3 0

Answer:

C. Both factors are negative, so the product will be positive.

Step-by-step explanation:

mixas84 [53]2 years ago

3 0

Answer:

Both factors are negative, so the product will be positive

Step-by-step explanation:

negative times negative = positive

positive times negative = negative

positive times positive = positive

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Olin [163]

$2\cdot x^2+2\cdot x^1+1\cdot x^0=25\\2x^2+2x+1=25\\2x^2+2x-24=0\\x^2+x-12=0\\x^2+4x-3x-12=0\\x(x+4)-3(x+4)=0\\(x-3)(x+4)=0\\x=3 \vee x=-4$

The base can't be negative, therefore $x=3$ .

$3\cdot x^0+3\cdot x^1+4\cdot x^0-4\cdot x^1+0\cdot x^0=0\\3+3x+4-4x=0\\x=7$

$2\cdot x^1+3\cdotx^0=1\cdot 2^3+1\cdot2^2+1\cdot2^1+1\cdot2^0\\2x+1=8+4+2+1\\2x=14\\x=7$

5 0

1 year ago

Consider the functions f(x) = 5x – 2, g(x) = 5x² + 2 and r(x) = –2x + 4.

klemol [59]

Answer:

f(-2x+4) = -10x+18

Step-by-step explanation:

4 0

2 years ago

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noname [10]

57-----------------------

6 0

3 years ago

Juliette made the jewelry box shown below. The jewelry box was shaped like a right rectangular prism.

goblinko [34]

Answer: 160.

Step-by-step explanation:

Use the formula V=whl to find the volume of a rectangular prism. 4x5x8= 160.

8 0

3 years ago

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Mars2501 [29]

Answer:

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Step-by-step explanation:

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