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Anna11 [10]
3 years ago
5

Factor the polynomial completely 9x^3 + 30x^2 - 25x

Mathematics
1 answer:
Rama09 [41]3 years ago
7 0
9x^3 + 30x^2 - 25x

step one: find the greatest common factor (GFC)
GFC=x

step two: factor out the GFC (write the GFC first. then in parentheses, divide each term by the GFC)

x(9x^3 over x + 30x^2 over x + -25x over x)

step three: simplify each term in parentheses

x(9x^2+30x-25) ...should be the answer
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A cell phone tower is anchored by two cables on each side for support. The cables stretch from the top of the tower to the groun
kramer

Answer:

659.6 ft

Step-by-step explanation:

x = 140 / tan 23  

x = 329.82(rounded to hundredth)

so total ground distance between the cables = 2x = 2(329.82) = 659.64 feet

4 0
3 years ago
In a function, y varies inversely with x. The consistent of variation is 4. Which table could represent the function?
lianna [129]

Answer:

none of the tables shown

Step-by-step explanation:

Inverse variation is

xy = k where k is the constant

xy = 4

in the top table

-2*2 = -4 so it cannot be the first table

In the middle table

-2 * -8 = 16  so it is not the middle table

In the bottom table

-2 *4 = -8 so it is not the bottom table

There must be a table not shown

5 0
3 years ago
Y = 4x + 5<br> 2x + y = 17<br><br> Something about substitution to solve a system of an equation
Leto [7]

Answer:

x=2, y=13. (2, 13).

Step-by-step explanation:

y=4x+5

2x+y=17

----------

2x+4x+5=17

6x+5=17

6x=17-5

6x=12

x=12/6

x=2

y=4(2)+5

y=8+5=13

8 0
3 years ago
Which of the following pairs of numbers has a least common multiple ?
JulsSmile [24]

Answer:

2 and 24

Step-by-step explanation:

because I like to say bawk

5 0
3 years ago
The Ray family went out to dinner The price of the meal was $38.95 The sales tax was 7% of the price of the meal. The tip was 18
Andrews [41]

Answer:

$49.18

Step-by-step explanation:

Dinner cost $38.95 before tax and tip are included.  

Directions say to ADD 7% tip first so,

38.95 multiplied by 7%= 2.7265, Round up to $2.73

ADD $38.95 and $2.73 tax= $41.68

Now, multiply $41.68 by 18% to find the tip amount

$41.68 * 18%= 7.5024, Round to $7.50

ADD $41.68 and $7.50 to get answer: $49.18

4 0
3 years ago
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