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sdas [7]
3 years ago
5

How to solve 8 = 2^x + 4?

Mathematics
2 answers:
Nitella [24]3 years ago
7 0
You are looking for what +4 = 8 so you take the 2^x and find what would make that 4. 2 squared is 4 (2x2) which makes 8=4+4

4+4=8 8=8
bearhunter [10]3 years ago
3 0
8 = 2^x + 4
2^x = 8 - 4
2^x = 4
as you know 4 = 2^2 so now you have:
2^x = 2^2
   x = 2
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What does the distributive property combine to make multiplying whole numbers simpler
n200080 [17]

The distributive property in a given field combines multiplication with addition, that is in a field <span>F<span>, any elements <span><span><span>a<span>,b</span></span> and </span><span>c which satisfy the following rule:</span></span></span></span>

<span>a(b+c<span>)=</span><span>ab</span>+<span>ac</span></span>

<span><span> </span> </span>

<span>The whole numbers are a subset of the field </span><span>R, which is composed of all rational and irrational numbers, hence the whole numbers satisfy this property. Therefore, if I wish to multiply 5 and 10, I can split this down to simplify the problem (or simply highlight the logical reasoning behind how long multiplication works.) To demonstrate:</span>

<span>5∗10=5∗(2+8<span>)=</span>5∗2+5∗8=10+40=50</span>

<span> </span>

 

8 0
2 years ago
one orange and one apple cost 1.05, two oranges and three apples cost $2.75, how much do two apples cost?
Nimfa-mama [501]
If you would like to know how much do two apples cost, you can calculate this using the following steps:

o ... the cost of one orange
a ... the cost of one apple

1 * o + 1 * a = $1.05
2 * o + 3 * a = $2.75
_______________
o + a = 1.05 ... o = 1.05 - a
2 * o + 3 * a = 2.75
2 * (1.05 - a) + 3 * a = 2.75
2.1 - 2 * a + 3 * a = 2.75
a = 2.75 - 2.1
a = $0.65

o = 1.05 - a = 1.05 - 0.65 = $0.4

2 * a = 2 * 0.65 = $1.3

The correct result would be: Two apples cost $1.3.
5 0
2 years ago
6x + 4 &gt; 2x - 16 (Given) 4x + 4 &gt; -16 (?) 4x &gt; -20 (Subtraction) x &gt; -5 (Division)
REY [17]
You are subtracting -16-4
So I would assume your answer would be C
I hope this answer helps!
6 0
2 years ago
Read 2 more answers
Find the value of X
emmasim [6.3K]

Answer: 20 i think srry if its wrong

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
P(x)=-4x-2<br> Find p(a-3)
Marta_Voda [28]
Answer : -4a+10

Substitute (a-3) for x
-4(a-3)-2
-4a+12-2
-4a+10 but can also be written as -2(2a-5)
7 0
2 years ago
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