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uranmaximum [27]
3 years ago
5

What is the value of 7x squared + 2x when x = 3

Mathematics
1 answer:
jolli1 [7]3 years ago
7 0

So we know this expression:

7x^2 + 2x.

And we know x = 3.

(7*3)^2 + (2*3)

21^2 + 6.

441 + 6

447

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ddd [48]
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3 years ago
If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll a 1
Novosadov [1.4K]
P(H)=1/2, P(1)=1/6

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4 0
3 years ago
Read 2 more answers
1.4 has 2 significant digits as a result of which rule? a. All nonzero numbers are significant. b. Zeros between nonzero digits
marishachu [46]

Answer:

All non zero digits count in significant digits.

(a) is correct option.

Step-by-step explanation:

Given that,

1.4 has 2 significant digits.

We know that,

Significant digits :

All non zero digits count in significant digits.

All zero which is present in between two significant digits it is also significant.

Leading zero is not count as significant.

Trailing zero is count as significant.

We need to find 1.4 has 2 significant digits as a result of which rule

Using given rules

1.4 has 2 significant digits it is follows the rule of all non zero digits count in significant digits.

Hence, All non zero digits count in significant digits.

(a) is correct option.

6 0
3 years ago
Write an equation that is parallel to the given equation (-1, 3) y=2x+2
Sedaia [141]

 

Hello: 
 an equation   for the line is : y =mx +b    (m: is a slope )

parallel to the liney=2x+2        ( same slope    m  =2)
the equation is : y =2x+b

through the point (-1,3) : 3 =2(-1)+b....... b=5
the equation is : y = 2x +5
4 0
3 years ago
Pls give me the full answer
nikdorinn [45]

All of the Questions are solved on the images shown below. These images are from Microsoft Whiteboard that I created.

<h2>I'm in sixth grade, and don't know how to answer 2 and 5. So I'm only going to answer questions 1, 3 and 4. </h2>

really sorry about that

1. Answer = 90m²

3. Answer = 50in²

4. Answer = 108cm²

yup, this is how weird i am

I took the screen shot of answer 3 before 1 lol!

----------------------------------------------------------------------------------------------------------

so sorry I couldn't help on all problems

Always have more than 2 smiles so that you can share them to someone who doesn't have one! Me Happy! You Happy! EVERYONE HAPPY!

Thanks!

Have a great day!

:D

7 0
2 years ago
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