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Alenkinab [10]
3 years ago
7

If the point (2/3,y) is on the unit circle, what is y?

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
8 0
On the unit circle, the abscise (x) is the cosine and the ordinate (y) = sinus
So y is the sinus

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Choose whether the expression is a result of multiplying
vladimir1956 [14]

Answer:

neither

Step-by-step explanation:

Take out 5 as a common factor. It will be easier to look at.

5(5c^2 + 11c + 6)

5(5C +6 )(c + 1 )

Now you can put the 5 inside.

(25c + 30)(c + 1) is one answer.

(5c + 6)(5c + 5) is another.

The answer is multiplying binomials. There is nothing that that is squared and the answers are not conjugates. They are two binomials multiplied together.

8 0
3 years ago
Select the correct answer from each drop-down menu.
Aleksandr [31]

Answer:

b

Step-by-step explanation:

3 0
3 years ago
A recent study was conducted to explore the relationship between the weight of a car and miles per gallon (gas mileage). A linea
k0ka [10]

Answer: a.  iv. The weight of a car can be used to explain about 79.6% of the variability in gas mileage using a linear relationship.

b. ii. There is a fairly strong, negative relationship between car weight and miles per gallon.

Step-by-step explanation:

  • A coefficient of determination (denoted by R²) is a measure in a regression model that determines proportion of the variance in the dependent quantity that is predictable from the independent quantity.
  • It is square of correlation coefficient (R).

Here,   independent quantity = weight of a car  

dependent quantity = miles per gallon (gas mileage)

The coefficient of determination (R²) was reported to be 79.6%.

That means, The weight of a car can be used to explain about 79.6% of the variability in gas mileage using a linear relationship.

  • A correlation coefficient(R) tells about the strength and direction of relation .
  • It lies between -1 and 1.

For the study, the correlation coefficient R is -0.8921.

There is a fairly strong, negative relationship between car weight and miles per gallon.

7 0
3 years ago
X/62+89=92 !!!! plz quick
elena-s [515]

To solve an algebraic equation, we need to get x by itself. We can start to do that by multiplying each side of the equation by 62 (to remove the denominator of x).


x + 89(62) = 92 * 62


Simplify


x = 92 * 62 - 89 * 62


Now we can factor out 62


x = 62 (92 - 89)


Now we can simplify the parenthesis


x = 62 * 3


x = 186

5 0
3 years ago
alonzo brought 17 packs of cola to a party , and each pack had 8 cans. lisa brought 7 cans of juice. how many cans did they brin
yanalaym [24]

Answer:

143

Step-by-step explanation:

17 times 8 =136, 136 + 7 = 143

3 0
3 years ago
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