Need help on the last problem please

Mathematics

1 answer:

Sveta_85 [38]2 years ago

3 0

Answer:

Step-by-step explanation:

Derivative is the slope of the tangent line at any point.

That slope is positive for x < -5 and x > 0

That slope is negative for -5 < x < 0

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If it takes Mr. French 22 min to get to school in the morning and he is traveling at a rate of 100 m per min how far is his hous

Nimfa-mama [501]

Answer:

220 m

Step-by-step explanation:

since it takes him 22 min, and each min he travels 100 m, you just have to multiply 22 by 100

22 x 100 = 220

3 0

3 years ago

How can I do this I'm so stuck on this plz help

Stolb23 [73]

You're just changing the given rate into a unit rate: follow along and do the division shown and fill in the blanks. 320 ÷16 = 20

So the unit rate is $\frac{20mi}{1gal}$

8 0

3 years ago

Read 2 more answers

2 Points

liraira [26]

Two or zero expresses the possible number of positive real solutions for the given polynomial equation.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equation:

$x^{3}-4 x^{2}-7 x+28=0$

First, we put hit and trial method to find out the one solution. So, if we put x=4 then the above expression will become zero. We can also write the above expression as

$(x-4) \times\left(x^{2}-7\right)=0$