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aksik [14]
4 years ago
12

Will give brainly if ur right and maybe a kiss

Mathematics
1 answer:
Dennis_Churaev [7]4 years ago
6 0

Answer:

14x²(2x³ + 1)

Step-by-step explanation:

Split the value: 28x⁵

28x⁵ = 28x³x²

14x² + 28x³x²

28 = 14 × 2

14x² + 14 · 2x³x²

Factor:

14x²(2x³ + 1)

No homo

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I need help on this statistic problem.
vladimir1956 [14]

Answer:

Option B.

Step-by-step explanation:

In a regression of y in x, the proportion oh the variation in y explained by the variable x is shown in the R-squared value. So, for answering this question we need to look at the R-squared of such regression.

In this case the R-squared is 98.9% (or 0.989), so we will the option that matches this value. Looking at your options, the one that matches the R-squared is option B.

So, B is the correct option.

3 0
3 years ago
Let f(x) = (x − 3)−2. Find all values of c in (1, 7) such that f(7) − f(1) = f '(c)(7 − 1). (Enter your answers as a comma-separ
Sidana [21]

Answer:

This contradicts the Mean Value Theorem since there exists a c on (1, 7) such that f '(c) = f(7) − f(1) (7 − 1) , but f is not continuous at x = 3

Step-by-step explanation:

The given function is

f(x)=(x-3)^{-2}

When we differentiate this function with respect to x, we get;

f'(x)=-\frac{2}{(x-3)^3}

We want to find all values of c in (1,7) such that f(7) − f(1) = f '(c)(7 − 1)

This implies that;

0.06-0.25=-\frac{2}{(c-3)^3} (6)

-0.19=-\frac{12}{(c-3)^3}

(c-3)^3=\frac{-12}{-0.19}

(c-3)^3=63.15789

c-3=\sqrt[3]{63.15789}

c=3+\sqrt[3]{63.15789}

c=6.98

If this function satisfies the Mean Value Theorem, then f must be continuous on  [1,7] and differentiable on (1,7).

But f is not continuous at x=3, hence this hypothesis of the Mean Value Theorem is contradicted.

 

3 0
3 years ago
I really need help plz
scoundrel [369]
The answer is choice A.

In this problem, we are shrinking the poster by 1/4 of its size.

Which means you need to divide the sides by 4
For width:
w =  \frac{32}{4}  = 8
For length:
l =  \frac{28}{4}  = 7


4 0
3 years ago
Ryan is planning a party for 138 people.Paper plates are sold in packs of twelve.How many packs of paper does ryan need to buy s
Artyom0805 [142]

Divide the number of people by the number of plates per pack:

138 / 12 = 11.5

He need to buy 12 packs of plates to have enough.

6 0
3 years ago
The fractions of -42/-45 and 14/15 are equivalent
FromTheMoon [43]
Yes, that is true, you have to simplify -42/-45 to be able to see if they are equivalant.
\frac{ - 42}{ - 45} = \frac{14}{15}
8 0
4 years ago
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