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enyata [817]
2 years ago
8

I dont know the x of 30-2x=22

Mathematics
2 answers:
murzikaleks [220]2 years ago
7 0

Answer:

x=4

Step-by-step explanation:

zloy xaker [14]2 years ago
3 0

Answer:

4

Step-by-step explanation:

30-22=2x

8=2x

8/2=x

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PLEASE HELP ASAP!!!!
Nana76 [90]
The answer is <span>A.) F(x) = 10(2.5)^x</span><span>.

</span>Since our base (2.5) is greater than 1, our graph would be increasing, hence it matches the given graph (it increases to the right, or towards quadrant I). Now all we need to do is solve for the y-intercept:
   F(x) = 10(2.5)^x
   F(0) = 10(2.5)^0 [substitute 0 in for x]
   F(0) = 10(1) [any number raised to 0 would always equal 1]
   y-intercept: 10 
Now does it match the graph? <span><em>Yes, it does.</em>
</span>
Thus, our exponential function for this graph would be F(x) = 10(2.5)^x.
<em /><u>Tip for life</u>: When solving for the y-intercept of exponential functions, our y-intercept is always the number in front of the base (in this case, <u /><u><em>10</em></u>(2.5)^x).

<em>Hope this helps.</em>
7 0
3 years ago
12, 21, 30 and 39 are the first four terms in a sequence
vivado [14]

Answer:

12, 21, 30, 39, 48, 57, 66, 75, 84.  

Ninth term is 84.

Step-by-step explanation:

The rule for this sequence is "add 9".

So, using this rule, we can do......

12, 21, 30, 39, 48, 57, 66, 75, 84.

<em>Remember to add 9 each time!</em>

Best of luck :3

4 0
2 years ago
Which expression calculates the speed in meters per second of an object that travels a distance of 40 m every 10 s?
Mumz [18]

Answer:

A

Step-by-step explanation:

40/10 will give you your answer

40/10=4m/s

3 0
2 years ago
Read 2 more answers
Write an expression equivalent to b^10/b^5 in the form b^m.
Mars2501 [29]
B^5 when you’re dividing exponents, just subtract!
4 0
2 years ago
Given P(A) = 0.56, P(B) = 0.45 and P(B|A) = 0.7, find the value of
miskamm [114]

Answer:

P(A and B) = P(AnB)

Step-by-step explanation:

P( \frac{A}{B} ) =  \frac{P(AnB)}{P(B)}  \\from \: bayes \: theorem \\  P(AnB) = P(B) \times P( \frac{A}{B}) \\  = 0.45 \times 0.7 \\  = 0.315

8 0
3 years ago
Read 2 more answers
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