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Iteru [2.4K]
3 years ago
8

Make a Prediction Predict the sum of 2 + 2. Explain

Mathematics
1 answer:
Paul [167]3 years ago
4 0

Answer:

4

Step-by-step explanation: what number line

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3(x+4)=18+x<br> please show work
rewona [7]

If X = 1 rhen it would be 3x5 so it would be 15 and for the other side X would have to be -3

3 0
3 years ago
Read 2 more answers
4. An airplane at T(80,20) needs to fly to both U(20,60) and V(110,85). What is the shortest possible distance for the trip?
damaskus [11]
The distance formula for two points in a plane is 
D=sqrt( (x1-x2)^2 + (y1-y2)^2 ) 
 From T to U
 D= sqrt((80-20)^2 + (20-60)^2) = 72.11 
 Then flying from U to V
 D= sqrt((20-110)^2 + (60-85)^2) = 93.4 
 So T to U to V = 72.11+93.4 = 165.5 
 BUT checking also T to V to U
 From T to V
 D= sqrt((80-110)^2 + (20-85)^2) = 71.6
 Then from V to U
 D= sqrt((110-20)^2 + (85-60)^2) = 93.4 
 So from T to V to U = 165
 Pretty much the same both directions
 So yes the answer is A
4 0
3 years ago
What is the inverse of the following function? <br> y= 2^x + 3
fiasKO [112]

Answer:

Option B: y=log_2(x-3)

Step-by-step explanation:

To obtain the inverse of the function y= 2^x + 3, you need to solve the equation for the variable "x":

y= 2^x + 3\\\\y-3=2^x\\\\log_2(y-3)=log_2(2^x)\\\\x=log_2(y-3)

Now you need to exchange the variable "x" with the variable "y". Then:

y=log_2(x-3)

Finally, you get that the inverse of the function y= 2^x + 3 is:

y=log_2(x-3)

This matches with the option B.

8 0
3 years ago
If the test scores of a class of 36 students have a mean of 75.2 and the test scores of another class of 28 students have a mean
Anon25 [30]
The mean of the combined group is 71.3 --- hope this helps
3 0
4 years ago
What's the slope, y intercept, and rate of change of y=2x+5?
Salsk061 [2.6K]
Slope: 2
y intercept: 5
rate of change : 2/1
5 0
3 years ago
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