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sweet-ann [11.9K]
2 years ago
7

Need help ASAP please

Mathematics
1 answer:
bonufazy [111]2 years ago
5 0

Answer:

A- no

B- no

C-yes

D- yes

Step-by-step explanation:Anything that is inside the red is a solution. You can also plug in the points into the equation and see if its right. Thats what I did for a.

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Which algebraic expression can be used to represent HLAF of x increased by 5
SashulF [63]

Answer:

(x+5)/2

Explanation:

So First, x is increased by 5 means x+5

And half of it means, multiply it by (1/2)

Which means x+5 * 1/2 which also is equal to (x+5)/2

6 0
3 years ago
Find the value of x to the nearest tenth. See linked picture below. Thanks!
Ber [7]
Answer: Choice D) 11

----------------------------

Work Shown:

cos(angle) = adjacent/hypotenuse
cos(35) = 9/x
x*cos(35) = 9
x = 9/cos(35)
x = 10.9869712988531 ... make sure your calculator is in degree mode
x = 11 ... rounding to the nearest tenth

6 0
3 years ago
Suppose that you are asked to conduct a study to determine whether smaller class
weeeeeb [17]

Answer:

a. correlation

b. inverse linear correlation exists If the higher the population of students lead to a decrease in test score,

c. yes

Step-by-step explanation:

a. Correlation is a measure of the amount of association existing between two variables.

b. For linear correlation, if points are plotted on a graph and all the points lie on a straight line, then perfect linear correlation is said to exist. When a straight line having a positive gradient can reasonably be drawn through points on a graph positive or direct linear correlation exists,

Similarly,when a straight line having a negative gradient can reasonably be drawn through points on a graph, negative or inverse linear correlation exists,

The results of this determination give values of r lying between +1 and −1, where +1 indicates perfect direct  Positive linear correlation and −1 indicates perfect inverse correlation or Negative linear correlation and 0 indicates that no correlation exists.

If the higher the population of students lead to a decrease in test score, there will definitely be a negative correlation between class size and test score. i.e low class size result in high test score which consequently lead to high performance.

c. YES

A negative correlation means low class size result in high test score which consequently lead to better performance.

8 0
3 years ago
6 An account pays
Sergio039 [100]

Answer: £122.4

Step-by-step explanation:

Given

The rate of interest is 4%

The principal invested is £1500

the time period is 2 years

Compound interest is given by

C.I.=P(1+r\%)^t-P

put values

C.I.=1500(1+0.04)^2-1500\\C.I.=1500[1.04^2-1]\\C.I.=1500[1.0816-1]\\C.I.=1500\times 0.0816\\C.I.=122.4

Therefore, interest earned is £122.4

5 0
2 years ago
16) Order the numbers below from greatest to least.<br>3.4 x 10-2, -14, -1.9, -1.9,-​
Andru [333]

There are 50 seats on the tour bus. You reserve 2/5 of the seats How many seats did you reserve

6 0
3 years ago
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