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cupoosta [38]
3 years ago
13

When solving the equation 4(3x^2 +2)-9=8x^2+7. Emily wrote 4(3x + 2)=8x^2 + 16 as her first step. Which property justifies Emily

's first step? State a reason why1) Addition Property of Equality2)Commutative Property of Addition3) Multiplication Property of Equality4) Distributive Property of Multiplication Over Addition
Mathematics
1 answer:
vfiekz [6]3 years ago
6 0
Hello : 
4(3x² +2)-9=8x²+7 = <span>4(3x^2 +2)-9 +9 =8x²+7 +9 
                                = </span><span> 4(3x² + 2)=8x² + 16
</span><span>(State a reason why1) Addition Property of Equality)</span>
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d1i1m1o1n [39]

Answer:

There is a $12.00 fee just to enter the park. ... In addition, the tour group charges $0.23 per mile they hike. She brought $35.00 with her. Which equation can be used to determine how many miles can she hike? ... 1. Brainly User. Let, the miles she can travel = d. So, Equation would be: 12.00 + 0.23d = 35.00

Step-by-step explanation:

7 0
2 years ago
Find the probability​ p(e or​ f) if e and f are mutually​ exclusive, ​p(e)equals 0.25​, and ​p(f)equals 0.51.
Masteriza [31]

The definition of two events being mutually exclusive (or disjoint) only means that it is not possible for the two events to occur together. Given two events, E and F, they are mutually exclusive and also mean independent.

In this case, since events E and F are mutually exclusive, therefore the probability that either E or F will occur will simply be the sum of two events.

P (E or F) = P (E) + P (F)

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P (E or F) = 0.76

 

Therefore this means that there is a 76% probability that either E or F will occur.

8 0
3 years ago
Cherise has a bag of marbles for her little sister. It contains 10 orange marbles, 7 yellow marbles, and 3 green marbles. She dr
NemiM [27]
The probability that all marbles are yellow is
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We are given
x = 2 and 3
u = 2.5
s = 0.5

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8 0
2 years ago
Can anyone help me out with these two problems please? Thanks!
V125BC [204]
1) x = 60/31 = 1.935
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8 0
3 years ago
What single decimal multiplier would you use to increase by 15% followed by a 14% increase?
umka2103 [35]

9514 1404 393

Answer:

  1.311

Step-by-step explanation:

That multiplier is the product of the multipliers for each of the increases:

  (1 +15%)(1 +14%) = 1.15×1.14 = 1.311

5 0
2 years ago
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