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AlexFokin [52]
3 years ago
5

Simplify the expression and then substitute the given number for the variable. For expression 8a2+6b+9a2+9b2+3b, find the value

if a=2,b=−1.
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0

Answer: 68

Step-by-step explanation:

Simplifying the expression:

= 8a² + 6b + 9a² + 9b² + 3b

Collect like terms

= 8a² + 9a² + 6b + 3b + 9b²

= 17a² + 9b + 9b²

We then substitute a=2,b=−1.

= 17a² + 9b + 9b²

= 17(2)² + 9(-1) + 9(-1)²

= 68 -9 + 9

= 68

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During the 2007 baseball season, Wade was up to bat 10 more times than
bearhunter [10]

Answer:

The number of times Ellis get to bat  is  558.

Step-by-step explanation:

Here, let us assume the number of times Ellis bat = m

So, the number of times Dwight bat =  17 times fewer than Ellis

                                                            = m - 17

Also, number of times Wade got to bat  = 10 more times than Dwight

= ( m- 17 )+ 10

Total number of bat times = 1650

So, the number of times ( Wade + Dwight + Ellis) bat together = 1650

⇒   ( m- 17 )+ 10 + (m - 17) + m =  1650

or, 3 m - 34 + 10 =  1650

or, 3  m = 1674

⇒ m = 1674/3 = 558 , or m = 558

Hence, the number of times Ellis get to bat = m = 558.

3 0
3 years ago
Need answer ASAP!<br><br> 1 + 1 =
OlgaM077 [116]

Answer:

2

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
first sequence: 3 8 13 18 23 second sequence: -2 4 10 16 . find the TWO numbers that are in both number sequences.​
azamat

a(n) = 3 + 5n

b(n) =  - 2 + 6n

a(n) = b(n) \\ 3 + 5n =  - 2 + 6n \\ 5 = n \\ n = 5 \: (6th \: term)

a(5) \: or \: b(5) = 3 + 5(5) = 28

6 0
2 years ago
Provide the reasons for statements 3 and 5 in the proof.
GrogVix [38]
What exactly is the question ?
6 0
2 years ago
T<br> Find the value of x.<br> x=<br> A<br> 3x + 28<br> 2x - 10<br> 5x + 52<br> с<br> B.
earnstyle [38]

Answer:

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7 0
3 years ago
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