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3 years ago

HELLLLLLP!!!!

Mathematics

1 answer:

mixer [17]3 years ago

7 0

Do $2.689 - $2.569 which would yield an increase of 12 cents

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Use the grouping method to factor the polynomial below completely 3x^3+9x^2+5x+15

Tomtit [17]

Answer:

(x+3)( 3x^2 +5)

Step-by-step explanation:

3x^3+9x^2+5x+15

Split into two groups

3x^3+9x^2 +5x+15

Factor 3x^2 out of the first group and 5 out of the second group

3x^2 ( x+3) + 5(x+3)

Factor out x+3

(x+3)( 3x^2 +5)

6 0

3 years ago

ZX is perpendicular bisector of WY if WY=24 what is WX

bixtya [17]

Answer:

Step-by-step explanation:

6 0

3 years ago

If you are standing 300ft from a building and the building is 200 ft tall, what is the angle of elevation formed with the ground

valentinak56 [21]

The answer is 49.2ft I think

6 0

3 years ago

what is the approximate distance from one corner of the soccer field to the opposite corner 60 yards, 100 yards

aalyn [17]

Answer:

Using Pythagorean theorem:

Diagonal = sqrt( 60^2 + 100^2) = 116.62

Hope this helps!

7 0

3 years ago

Use the four functions below for this question:

Jlenok [28]

Answer:

We have four functions:

For f(x) we have two points (-2,2) and (-1,-1)

we will use two point form which is:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

So, on substituting the values we get:

$y-2=\frac{-1-2}{-1-(-2)}(x-(-2))$

$y-2=\frac{-3}{x+2}$

$y=-3x-4$

So, f(x)=-3x-4

We have g(x)=3x-4

Now, we will from h(x) we have two points let initial point on monday is (0,4) and tuesday (1,1) again use two point form we get:

$y-4=-3(x-0)$

$\Rightarrow y=-3x+4$

So, h(x)= -3x+4

Now, we will form j(x) we have three points (2,10) , (-2,6) and (2,22)

We will use (-2,6) and (2,22) to find the function with two point form.

$y-6=\frac{22-6}{2+2}x+2)$

$\Rightarrow y=4x+14$

j(x)= 4x+14

To find the slope we will compare the given function with general equation which is y= mx +c; m is the slope

And to find y-intercept we will put x=0

f(x)=-3x-4

Slope is: -3

And y-intercept is: (0,-4)

g(x)=3x-4

Slope is: 3

And y-intercept is: (0,-4)

h(x)= -3x+4

Slope is: -3

And y-intercept is: (0,4)

j(x)= 4x+14

Slope is: 4

And y-intercept is: (0,14)

8 0

3 years ago

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