Step-by-step explanation:
-5/8 + 3/4
= -5/8 + 6/8
=1/8
B $3.42
C .57
D $2.53
Answer:
c.57
Step-by-step explanation:
Answer: Z = 107 as the opposite angles are equal. Then to find x, z is on the same line as (10x+3) so,
107+10x+3=180°
10x+3= 180-107
10x+3= 73°
now,
10x= 73-3 = 70
x= 70/10
x= 7
Hence z= 107 and x=7
pls mark brainliest
Answer:
Step-by-step explanation:
First we can solve for x,
107 and 10x+3 is straight line which is 180 so make an equation:
10(7) + 3 = 73
{CHECK: 107 + 10(7) + 3 = 180}
Now, let's find the value of z
As we have the value of x it will be easy to find z by forming an equation:
{CHECK: 107 + 73 = 180}
hope this helps :)
D
The model involves similar triangles with the ratios of corresponding sides being equal
let x be the length of the tree's shadow, then
= ( cross- multiply )
15x = 11 × 28
Answer:
D
Step-by-step explanation:
i went to K12
Answer:
Step-by-step explanation:
Hello!
The variable of interest is
X: mark obtained in an aptitude test by a candidate.
This variable has a mean μ= 128.5 and standard deviation σ= 8.2
You have the data of three scores extracted from the pool of aptitude tests taken.
148, 102, 152
The average is calculated as X[bar]= Σx/n= (148+102+152)/3= 134
An outlier is an observation that is significantly distant from the rest of the data set. They usually represent experimental errors (such as a measurement) or atypical observations. Some statistical measurements, such as the sample mean, are severely affected by this type of values and their presence tends to cause misleading results on a statistical analysis.
Using the mean and the standard deviation, an outlier is any value that is three standard deviations away from the mean: μ±3σ
Using the population values you can calculate the limits that classify an observed value as outlier:
μ±3σ
128.5±3*8.2
(103.9; 153.1)
This means that any value below 103.9 and above 153.1 can be considered an outlier.
For this example, there is only one outlier, that this the extracted score 102
I hope this helps!
Answer:
7. N. 2x-16
8. Y. 4x+20
9. A. 9x-28.8
10. T. 7x-4
11. S. 6x+54
12. N. 8x+6
13. O. 7x+9
14. N. 7x
15. T. 10x+50
16. W. 4x+15
17. I. 5x+26
18. U. 33/5x-12
19. C. 2.8x-7.56
20. O 10/3x+1/6