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spayn [35]
3 years ago
7

Write equation for the ellipse with foci (9,0) and (-9,0) and endpoints on the verticle axis of (0,2) and (0,-2).

Mathematics
1 answer:
Inga [223]3 years ago
6 0
See the answer on the attached 

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Triangle ABC has the following properties: Angle A measures 120°; AB ≅ AC. What is the classification of triangle ABC by angles
Flura [38]
The answer is C <<<=====
It can't be anything else. It is not a right angle. A>90
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4 years ago
T is directly proportional to
Nutka1998 [239]

Answer:

(a) T = 16√x

Step-by-step explanation:

T is directly proportional to √x, so we can say,

T=k√x (where k is a constant)

now, according to the question,

400=k×√625

400=k×25

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Answered by GAUTHMATH

8 0
3 years ago
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Teresa is investigating if grade level has any effect on time spent studying. What is the response variable?
Helen [10]

Answer:

The time spent studying is the response variable.

Step-by-step explanation:

The response variable, also known as the dependent variable is the main question which the experiment wants to provide an answer for. Usually, the predictors determine or affect the response variable.  In the study where Teresa investigates the effect of grade level on time spent studying, the response variable is the time spent studying, while the predictor which is the grade level provides an explanation as to the time spent studying.

The changes or variations on time spent studying depends on the grade level. This means that the grade level provides an explanation of the length of time dedicated to studying.

3 0
3 years ago
The mother's age is 8 times her son's age. After 6 years, the age of the mother will be 9/2 times her son's age. The present age
Yakvenalex [24]

Answer:

son = 6 mother = 48

Step-by-step explanation:

Mother = m

son = s

m = 8s

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so

2(8s + 6) = 9(s +6)

16s + 12 = 9s + 54

16s - 9s = 54 - 12

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s = 42/7 = 6 years old

so the mother is 8s = 8*6= 48 years old

4 0
4 years ago
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Answer:


Step-by-step explanation:

i dont know

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3 years ago
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