I am giving brainlist to quickest and the correct answer

Mathematics

2 answers:

Natalka [10]3 years ago

5 0

Answer:

Step-by-step explanation:

Sally drove 300 miles in 6 hours, so all you have to do is divide 300 by 6.

300/6=50

Sally drove 50 miles per hour.

Have an amazing day...I hope this helped!! c:

kirza4 [7]3 years ago

4 0

50 miles drive per hour

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Evaluate -9-13+2+13 please

PIT_PIT [208]

Answer: that is -7

Step-by-step explanation:

6 0

2 years ago

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Consider the function below. (If an answer does not exist, enter DNE.) g(x) = 190 + 8x3 + x4 (a) Find the interval of increase.

galben [10]

Answer:

The interval of increase of g(x) is $(-6,+\infty)$ .

Step-by-step explanation:

The interval of increase occurs when first derivative of given function brings positive values. Let be $g(x) = 190 + 8 \cdot x^{3} + x^{4}$ , the first derivative of the function is:

$g'(x) = 24 \cdot x ^{2} + 4\cdot x^{3}$

$g'(x) = 4 \cdot x^{2}\cdot (6+x)$

The following condition must be met to define the interval of increase:

$4\cdot x^{2} \cdot (x+6) > 0$

The first term is always position due to the quadratic form, the second one is a first order polynomial and it is known that positive value is a product of two positive or negative values. Then, the second form must satisfy this:

$x + 6 > 0$