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2 years ago

Need this done step by step asapp thank youuu

Mathematics

1 answer:

Marta_Voda [28]2 years ago

7 0

Step-by-step explanation:

Given

( 3x - 2 ) ( x² + 5x - 8 )

= 3x ( x² + 5x - 8) - 2 ( x² + 5x - 8)

= 3x³ + 15x² - 24x - 2x² - 10x + 16

= 3x³ + 13x² - 34x + 16

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13-(x+5)=4x-2 what is x?

Harman [31]

First simplify-
13-(x+5)=4x-2
13-x+5=4x-2
18-x=4x-2
Then isolate the variable-
20=5x
And last, divide both sides by 5 to get just x (not 5 x)-
x=4

6 0

2 years ago

Last year, Pinwheel Industries introduced a new toy. It cost $9800 to develop the toy and $25 to manufacture each toy. Find the

Llana [10]

Answer:

I think it is C= 9800 + 25n

Step-by-step explanation:

This is because you have to set it equal to the total cost witch is C. Now you put have to put 25n as the number of toy's manufactured . Then set 9800 up as what is added to the money added to the money per toy made. This is how i got my answer.

Mark brainiest if this helped you.

4 0

2 years ago

Charlie received -33

max2010maxim [7]

3

-33/11=-3

Mark brainliest please

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2 years ago

DanielleElmas [232]

Answer:

Add the area of the rectangle with the semicircle.

10x4 + 0.5(3.14)(25)

40+39.25

79.25

So the answer is C. 79.

Let me know if this helps!

4 0

2 years ago

A scoop of ice cream has 1.5 inch radius. How talk should the cream cone of the same radius be in order to contain all of the ic

MAVERICK [17]

Answer:

The cream cone should be 6 inches.

Step-by-step explanation:

Given:

A scoop of ice cream has 1.5 inch radius.

Now, to find the height of the cream cone.

So, we need to get the volume of scoop by putting formula:

Radius (r) = 1.5 inch.

Using the value π = 3.14.

$Volume=\frac{4}{3} \pi r^3$

$Volume=\frac{4}{3}\times 3.14\times 1.5^3\\\\Volume=\frac{4}{3}\times 3.14\times 3.375\\\\Volume=14.13\ inches^3.$

Thus, the volume of the ice cream scoop is 14.13 cubic inches.

So, to put all of the ice cream inside the cone.

We take the cream cone volume as the scoop volume.

Let the height of cone be $h.$

As, given radius is same.

Now, to get the height of the cream cone we put formula of volume:

$Volume=\pi r^2\frac{h}{3}$

$14.13=3.14 \times (1.5)^2\times \frac{h}{3}\\\\14.13=3.14\times 2.25\times \frac{h}{3}$

Multiplying both sides by 3 we get:

$42.39=3.14\times 2.25\times h\\\\42.39=7.065\times h$

Dividing both sides by 7.065 we get:

$6=h$

$h=6\ inches.$

Hence, the height of the cone = 6 inches.

Therefore, the cream cone should be 6 inches.

7 0

2 years ago