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3 years ago

-4x+3(5x+10)=-36 !!!

Mathematics

2 answers:

damaskus [11]3 years ago

8 0

Answer:

x = -6

Step-by-step explanation:

-4x+ 3(5x +10)= -36

-4x + 15x +30 = -36

11x +30 = -36

11x = -66

x = -6

JulsSmile [24]3 years ago

3 0

Answer:

if you are trying to solve for x the answer is

X=-6

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Dimas [21]

Answer:

75 students

Step-by-step explanation:

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3 years ago

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What are the coordinates of the turning point for the function f(x) = (x - 1)3 - 3? A. (-1, -3)

Naddik [55]

ANSWER

The turning point is

$(1,-3).$

EXPLANATION

The function given to us is

$f(x) = (x - 1) ^{3} - 3$

At turning point,
$f '(x) = 0$

So we need to differentiate the given function and equate it to zero.

We using the chain rule of differentiation, we obtain,
$f '(x) =3 (x - 1) ^{2}$

We equate this to zero to obtain,

$3 (x - 1) ^{2} = 0$

We divide through by 3.

$(x - 1) ^{2} = 0$

We solve for x to get,

$x - 1 = 0$

$x = 1$

We substitute this x-value in to the function to obtain the corresponding y-value of the turning point.

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$f(1) = 0 - 3$

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Therefore the turning point is

$(1,-3)$

C is the correct answer.

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3 years ago

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You walk an average of 3.2 miles per hour on the way to school and at an average of 4 miles per hour on the way home the total w

7nadin3 [17]

The answer to this question is:
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3 years ago

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Andrew [12]

Answer:

B ( 432 units^2)

Step-by-step explanation:

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There are 2 squares at each end of the same size so total area will be 2*(6*6)

If we look at the rectangles( bottom, top and the sides), we can see that all are of same dimensions and there are 4 of them so it's 4*(15*6)

In short, total surface area= 2*(6*6)+ 4*(15*6) = 432 units^2

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3 years ago

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Nat2105 [25]

Answer:

h = 5.5

Step-by-step explanation:

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