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3 years ago

9

Evaluate 2x^2-1 when x=3 A) 5 B) 17 C) 25 D) 35

2 answers:

natulia [17]3 years ago

8 0

Answer:

Step-by-step explanation:

gayaneshka [121]3 years ago

6 0

The answer to the question is b

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Thank you an advance!

Natalka [10]

The answer is A.

I'm too tired to explain. yadayadayada

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4 years ago

Read 2 more answers

2 1/4 x 3 2/5<br> show all your work

monitta

Answer:

153/20

Step-by-step explanation:

I assume you're asking

$2 \frac{1}{4} \times 3 \frac{2}{5}$

So

$\frac{9}{4} \times \frac{17}{5}$

=

$\frac{153}{20}$

5 0

3 years ago

Find the value of x and y

Darina [25.2K]

$\\ \rm\Rrightarrow \dfrac{x}{2}=3$

$\\ \rm\Rrightarrow x=2(3)$

$\\ \rm\Rrightarrow x=6$

And

$\\ \rm\Rrightarrow \dfrac{y}{2}+1=3$

$\\ \rm\Rrightarrow \dfrac{y}{2}=3-1=2$

$\\ \rm\Rrightarrow y=2(2)$

$\\ \rm\Rrightarrow y=4$

5 0

3 years ago

Read 2 more answers

Help anyone?! please

s2008m [1.1K]

Answer:

Step-by-step explanation:

-3,5

,5,0

3 0

3 years ago

5p/-1 + q when p is 21 and q is 9

son4ous [18]

5×21/-1+9
105/-1 +9
-105 +9
-96

hope that helps

8 0

3 years ago