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liberstina [14]
2 years ago
9

Help help help math math math

Mathematics
1 answer:
musickatia [10]2 years ago
4 0

18

Step-by-step explanation:

X-3=15

Make X the subject of the formular by transferring the number with co-efficients in one side if the equation.

X=15+3

X=18

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X + 2y = 5
Dafna11 [192]
B. 2
if any other number was in there i dont think it would work because its neg
3 0
3 years ago
Read 2 more answers
two sides of a triangle measures 25 cm + 35 CM which of the following would be the measure of the third side
Oxana [17]
Assuming those are the legs of the triangle and that you need to find the hypotenuse... I would use the formula: a^2+b^2=c^2
It doesn't matter what a and b are, just fill it in.
25^2+35^2=c^2
625+1225=c^2
1850=c^2
Take the square root of 1850, it isn't a perfect square so I got: 43.01.
If you want, just round it to 43, idc. 
So, if I were to check my work, I would need to remember that the hypotenuse is the longest side.
Since 43 is the hypotenuse, it is the longest side. 

5 0
4 years ago
Write the expression in complete factored form. 2a(u+2)+9(u+2)=
KIM [24]

Answer:

(u+2)(2a+9)

Step-by-step explanation:

2a(u+2)+9(u+2)

Taking (u+2) common

We get

(u+2)(2a+9)

5 0
3 years ago
T-Mobile has a family plan of four lines $120 additional lines are $10 each per month. If Jason wants to spend at most $175 per
Irina-Kira [14]

Answer:

5 lines

Step-by-step explanation:

hope this helps.

5 0
3 years ago
Read 2 more answers
1. How can a table be used to find the rate of change and the initial value? Describe the process.
rodikova [14]

Answer:

1. Pattern. 2. I don't know that one

Step-by-step explanation:

For finding the rate with a table all you do is look how far the numbers are jumping each time. Example: x: 1, 3, 5, 7, 9 y: 2, 4 ,6 ,8 , 10

Both the x and y follow a pattern, though its not the same, its still a pattern

(The Constant rate of change for x is 2 as it goes up 2 every time and the constant rate of change for y is also 2 as it goes up by 2 every time

4 0
3 years ago
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