3 years ago

I need help with the questions underlined !! Please help !!! ASAP

Mathematics

1 answer:

dybincka [34]3 years ago

6 0

This is social studies put it i. Math don’t mean to be mean

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g and Consider the following. f(x) = 4x2 + 5x − 18 (a) Find the instantaneous rate of change of the function at the value x = −4

Oduvanchick [21]

Answer:

a) $\frac{dy}{dx} = -27$ , b) $m = -27$

Step-by-step explanation:

a) The instantaneous rate of change is:

$\frac{dy}{dx} = 8\cdot x + 5$

$\frac{dy}{dx} = 8\cdot (-4)+5$

$\frac{dy}{dx} = -27$

b) The slope of the tangent line is equal to the instantaneous rate of change found previously.

$m = -27$

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2 years ago

Distributive property 3(x-1)=3x-

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The answer is 3x-3. You have to distribute the 3 to both of the variables in the equations. The 1 in the parentheses is a negative and multiplying the 3 will result in a negative 3.

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2 years ago

The weight, in pounds , of Mike's five pet dogs are listed below.What is the mean absolute deviation (MAD) of the weights?

madreJ [45]

Answer:

it would be 32

Step-by-step explanation:

you would add them all up then divide it by five

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2 years ago

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Jennifer scores a 77 on her algebra 2 test. The mean on the test was 73. The standard deviation on the test was 5. What was her

MA_775_DIABLO [31]

Answer:

0.80

Step-by-step explanation:

The z-score is found from the formula ...

Z = (X -μ)/σ

Z = (77 -73)/5 = 4/5 = 0.80

Jennifer's Z-score was 0.80.

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3 years ago

nikki wants to buy a dog bed that costs $87. She earns $6 per week for doing chores. How many weeks will Nikki have to do her ch

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87 : 6 = 14,5 (weeks)

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