2 years ago

Please help on this one?

1 answer:

6 0

Answer:

Step-by-step explanation:

D is.

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Phoenix [80]

Answer:

Step-by-step explanation:

case I added it and I m right

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2 years ago

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 $x=3$ .

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

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

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1 year ago

Anni [7]

ANSWER; Work with a good mind and you can do it with know body help Step-by-step explanation:

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2 years ago

ale4655 [162]

V = PI x r^2 x H

1348.79 = 3.14 x 5.5^2 x H

1348.79 = 94.985 x h
h = 1348.79 / 94.985
h = 14.2 cm ( round answer if needed)

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2 years ago

Ludmilka [50]

Answer:

Step-by-step explanation:

3*2=6

6^2=6*6

=36

7 0

2 years ago