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3 years ago

I NEEEEEEEED HELPPPPPPPPPPPP!!!

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

3 0

I believe the correct answer is B

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Given that f(x) = 7x^2 − 84 = 0, find x.

jasenka [17]

Answer:

x = 3.464

Step-by-step explanation:

7x^2 - 84 = 0

7x^2 = 84

x^2 = 12

x= 3.464

8 0

3 years ago

Help me as soon as possible PLEASE HELP

disa [49]

Answer:

QRT = 47, TRS = 133

Step-by-step explanation:

Since QRS is a line, QRT + TRS = 180.

$QRT+TRS=180\\3x+5+10x-7=180\\$

Then, solve for x. Combine like terms.

$13x-2=180\\13x=182\\x=14$

Then, plug in 14 for x.

$1. (3*14+5)\\\\QRT = 47\\\\2. (10*14-7)\\\\TRS = 133$

7 0

2 years ago

Anybody Know This. ?

PolarNik [594]

Answer:

3-Equalateral

Step-by-step explanation:

All the sides are all equal, which basically eliminates isosceles, isosceles acute, and scalene, therefore the answer is Equalateral.

5 0

2 years ago

What’s the number for 2+1=

Cerrena [4.2K]

2+2 is 4 minus one that's 3 quick maths but 2+1 is equal to 3

8 0

3 years ago

Please help me<br> 3x≤21<br><br> x≤__?

EastWind [94]

Answer:

divide both sides by 3

givea you

x<= 7

3 0

2 years ago