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alekssr [168]
3 years ago
5

Evaluate x2 - 7xy for x = 7 and y = 3.

Mathematics
1 answer:
kramer3 years ago
8 0

Answer:

-98

Step-by-step explanation:

I hope this help

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Which values for h and k are used to write the function f of x = x squared + 12 x + 6 in vertex form?
almond37 [142]

Answer:

h=−6, k=−30

Step-by-step explanation:

did on edge

6 0
3 years ago
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Drawing Conclusions: Geometry
leonid [27]
AE and EC are congruent because it's given that E is the midpoint of AC. However, DE and EB cannot be congruent because it does not state that point E is the midpoint of DB.

You cannot assume that all the triangles DEA, AEB, BEC, and CED are all congruent just from being given that E is the midpoint of AC. You would need to be given other information such as "Quadrilateral ABCD is a parallelogram. "
8 0
3 years ago
_____ refers to the degree to which changes in the dependent variable are due to the manipulation of the independent variable.
Setler79 [48]

Answer:

Internal validity

Step-by-step explanation:

Internal validity is a scientific study that emphasize on the fact that there is a proof to validate a specific study. Let's say i'm a forensics scientist for example; and there was a recent crime scene in some nearby sub-urban area which demands our call, when present at the scene, The main task there is to gather information as much as we can  which is required to be investigate in the laboratory for further analysis.The process of information gathering is our independent variables which varies with different causes of the crime, the laboratory analysis that make deductions (which is cause by some manipulation) of the information gathered is our dependent variables.

Therefore, we can conclude that Internal validity refers to the degree to which changes in the dependent variable are due to the manipulation of the independent variable.

6 0
3 years ago
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Solve: 9x - 3 = 729 x =
stepan [7]

Answer:

x= −1/ 240

Step-by-step explanation:

hope this helps!!

7 0
3 years ago
Giovanna and Janet both have jobs where they get paid by the hour. Below are the numbers of hours each have worked on each of th
e-lub [12.9K]

Answer:

Janet makes 9 dollars per hour which is more that Giovanna makes.

Step-by-step explanation:

Its very simple

All you have to do is divide  like Giovanna make 42 dollars every 6 hours

42/6=7

Also for Janet she makes 54 dollars every 6 hours

54/6=9

8 0
3 years ago
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