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SSSSS [86.1K]
3 years ago
13

Solve the equation for all values of x by completing the square. Irrational x^2+15=-10x

Mathematics
1 answer:
attashe74 [19]3 years ago
7 0

Answer:

x=-1.8, x=-8.2

Step-by-step explanation:

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The length of a shadow of the building is 36m. The length of the pole, which is perpendicular to the ground, is 1.9m. The length
attashe74 [19]

Answer:

45

Step-by-step explanation:

We are assuming that the pole's shadow and buildings shadow are proportional so our ratio is

x/36=1.9/1.52

cross multiply

1.52x=68.4

simplify

x=45

6 0
3 years ago
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Elenna [48]
The ratios are 5/2 adn 25/4 for the perimeter and area respectively
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3 years ago
PLEASE HELP IM SO STUCK ILL MARK YOU BRIANLIEST!!! 30 POINTS Given the expression: 6x10 − 96x2 Part A: Rewrite the expression by
Murljashka [212]

Answer:

6x^2 ( x^2 -2) ( x^2 +2)(x^2+2x+2)(x^2-2x+2)

Step-by-step explanation:

6x^10 − 96x^2

Factor out 6x^2

6x^2 ( x^8 - 16)

Notice that inside the parentheses we have the difference of squares

6x^2 ( x^4 ^2 - 4^2)  a^2 - b^2 = (a-b) (a+b)

6x^2 ( x^4 -4) (x^4 +4)

Notice that x^4-4 is also the difference of squares

6x^2 ( x^2^2 -2^2) (x^4 +4)

6x^2 ( x^2 -2) ( x^2 +2) (x^4 +4)

Note also that x^4 + 4 can be factored into (x^2+2x+2)(x^2-2x+2)

6x^2 ( x^2 -2) ( x^2 +2)(x^2+2x+2)(x^2-2x+2)

3 0
3 years ago
What is the solution to x+12=4x-6
Mademuasel [1]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

x + 12 = 4x - 6

+ 6

x + 18 = 4x

- x

18 = 3x

/3

x = 6

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

。☆✼★ ━━━━━━━━━━━━━━  ☾

5 0
3 years ago
Read 2 more answers
Hannah is 3 years older than twice her brother Joey’s age. Joey is 2 years old. How old is Hannah? Show all of your work!
DaniilM [7]

Answer:

7

Step-by-step explanation:

twice for joey's age so joeys age is 2 double that it will be 4 so 3+4=7

5 0
3 years ago
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