Answer:
Step-by-step explanation:
Answer:
1. The scale factor here is 1.5
2. The scale factor here is 2/3
Step-by-step explanation:
Here, we shall be dealing with scales of triangles.
we have two triangles;
ABC and DEF
longest sides are in the ratio;
12 : 8
1. What scale factor translates DEF to ABC?
The ratio of the length can be beaten down to 3:2
So therefore, we can see that by multiplying the sides of of DEF by 1.5, we can arrive at the sides of ABC
So the scale factor here is 1.5
2. This is like the other way round of what we have above.
By multiplying the sides of ABC by 2/3, we shall have the sides of DEF
Answer:
square root of 81
square root of 1000
square root of 34
square root of 169
Step-by-step explanation:
Answer:
And we can use the normal standard distribution table or excel and with the complement ruler we got:
Step-by-step explanation:
We know the following info given:
represent the true mean
represent the population deviation
represent the sample size selected
Since the sample size is large enough (n>30) we can use the central limit theorem and the sample mean would have the following distribution:
And for this case we want to find this probability:
And we can use the z score formula given by:
And replacing we got:
And we can use the normal standard distribution table or excel and with the complement ruler we got:
Answer:
y = 8
x = 17
Step-by-step explanation:
We can find the missing values using similarity ratio
15/30 = y/16 cross multiply expressions
30y = 240 divide both sides by 30
y = 8
Now do the same for x
15/30 = x/34 cross multiply expressions
30x = 510 divide both sides by 30
x = 17
