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Margaret [11]
2 years ago
13

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics
1 answer:
Hoochie [10]2 years ago
6 0

Answer:

c

Step-by-step explanation:

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X/3+10=15 I don't know how to solve this I'm confused and don't know where to start
NARA [144]
X/3 +10=15
         -10   -10
x/3       =5

so the x will be 15 because if you multiply 3x5 = 15

7 0
3 years ago
I need help please 20 or more points please
Norma-Jean [14]

Answer: V, V, (-5, -5.5)

Step-by-step explanation:

7 0
2 years ago
PLEASE HELP ASAP! WILL MARK BRANLIEST-
mafiozo [28]

Answer:

180

Step-by-step explanation:

8 0
2 years ago
Use the drawing tools to form the correct answers on the grid.
Dafna1 [17]

Answer:

I don't understand the array of numbers as written in the question.

Step-by-step explanation:

See attached image

5 0
2 years ago
For which positive integer values of $k$ does $kx^2+20x+k=0$ have rational solutions? Express your answers separated by commas a
Musya8 [376]

Answer:

-10,10

Step-by-step explanation:

The given quadratic equation is

k {x}^{2}  + 20x + k = 0

The discriminant of this equation is given by;

D =  {b}^{2}  - 4ac

where a=k, b=20, c=k

For rational solutions, the discriminant must be zero.

{20}^{2}  - 4 \times k \times k = 0

Simplify to get:

400 - 4  {k}^{2}  = 0

This implies that:

400  = 4  {k}^{2}

100 =  {k}^{2}

Take square root to get:

k =   \pm\sqrt{100}

k =  \pm10

k =  - 10 \: or \: k = 10

3 0
3 years ago
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