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3 years ago

What do you get if you reduce 40 20/70?? help please

Mathematics

1 answer:

-BARSIC- [3]3 years ago

5 0

Answer:

40 2/7

Step-by-step explanation:

40 20/70

402/7

you take the zeros off or divide them by ten

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I need help with adding decimals

nasty-shy [4]

When you add the decimals it’s the same as regular adding. You line up the decimals and then add all the way across and when you get to the decimal carry it down

4 0

3 years ago

Read 2 more answers

Determine whether a quadratic model exists for the set of values below. If so, write the model. f(0) = -4, f(3) = -19, f(-1) =

Vikentia [17]

Answer:

A) The model exists: f(x) = -3x^2 +4x -4

Step-by-step explanation:

A quadratic model will always exist for 3 given points, provided they are not on a line. In that case, a linear model is appropriate.

Here, the slope between -1 and 0 is positive, and the slope between 0 and 3 is negative. Thus, we know these points are not collinear, and a model must exist.

The model is most easily found using a quadratic regression tool. Such is shown in the attachment. It tells us that ...

f(x) = -3x^2 +4x -4

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2 years ago

Factor 5a^2-30a+45, and 2x^5+x^4-2x-1.

Mrrafil [7]

Step-by-step explanation:

${5a}^{2} - 30a + 45$

$5( {a}^{2} - 6a + 9)$

5(a-3)(a-3)

5(a-3)^2

${2x}^{5} + {x}^{4} - 2x - 1$

X^4(2x+1) - (2x+1)

(x^4-1)(2x+1)

(x^2-1)(x^2+1)(2x+1)

(x-1)(x-1)(x^2+1)(2x+1)

6 0

2 years ago

21. Name an angle that is adjacent to O ZDGB O ZEGC O ZEGF O ZCGB O ZFGA O ZEGT O ZDGE

olga2289 [7]

Answer:

the answer is D hope this helps you

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2 years ago

Let f be a differentiable function such that f(3)=15, f(6)=3, f ' (3)= -8, and f ' (6)= -2. The function g is differentiable and

Ray Of Light [21]

Answer:

A. $g'(3)=-\frac{1}{2}$

Step-by-step explanation:

We have been given that f be a differentiable function such that $f(3)=15$ , $f(6)=3$ , $f'(3)= -8$ , and $f'(6)= -2$ . The function g is differentiable and $g(x)= f^{-1} (x)$ for all x.