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Artist 52 [7]
3 years ago
8

In the expression what is the numerical coefficient in this question ?

Mathematics
1 answer:
bearhunter [10]3 years ago
4 0

Answer:

-7

Step-by-step explanation:

The numerical coefficient of - 7yz^2 is - 7.

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You know that there is a strong correlation between the consumption of ice cream and body weight. The Pearson's r = 0.78. You al
Naddika [18.5K]

Answer:

y = 7.8x + 26

Step-by-step explanation:

Given the following :

Pearson's r = 0.78

Average consumption of ice cream = 5 grams per week (m) with Standard deviation (sd) = 1.5 grams

Average weight = 65 kg with standard deviation of 15kg

Formular for the regression line :

General regression formula :

y = mx + c

y = predicted variable ; m = slope or gradient ; x = predictor variable ; c = intercept

Gradient (m) = change in y / change in x

m = (sd y / sd x) * r

m = (sd weight / sd ice cream) × r

m = (15 / 1.5) × r

m = 10 × 0.78 = 7.8

Intercept:

mean of weight(y) - [Slope×mean of icecream(x)]

65 - [7.8 × 5]

65 - 39 = 26

Hence,

y = 7.8x + 26

5 0
3 years ago
Which function has an inverse function?
joja [24]

Answer:

x=25.y2+755

y=x/25.2+755

4 0
3 years ago
LCM of 294 and 1260<br><br>​
Alex Ar [27]

Answer:

8820

Step-by-step explanation:

Prime factorization of 294,

→ 2 × 3 × 7 × 7

Prime factorization of 1260,

→ 2 × 2 × 3 × 3 × 5 × 7

LCM of 294 and 1260,

→ 2 × 2 × 3 × 3 × 5 × 7 × 7

→ 8820

Hence, the LCM is 8820.

4 0
1 year ago
-3•e^(2m-5)-3=-27 how to solve
zzz [600]

Answer:

m = 3.53972077085

Step-by-step explanation:

-3 × e^{2m - 5} - 3 = -27

Subtracting -3 from both sides of the equation gives;

-3 × e^{2m - 5}  = -24

Dividing by -3 on both sides of the equation gives;

e^{2m - 5} = 8

Let 2m - 5 = x

xloge = 3log2

x = \frac{3log2}{loge} = 2.0794415417

So,

2m - 5 = 2.0794415417

2m = 2.0794415417  + 5

2m = 7.0794415417

Dividing by 2 on both sides of the equation gives:

m = 3.53972077085

3 0
3 years ago
Three less than a certain number is 9. Find the number.
lilavasa [31]
12 is the correct answer
7 0
2 years ago
Read 2 more answers
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