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Stels [109]
3 years ago
14

CAN SOMEONE PLEASE HELP ME IT WOULD BE MUCH APPRECTIED!!! i NEED HELP WITH THE FIRST 3 QUESTIONS THATS IT

Mathematics
1 answer:
Alborosie3 years ago
6 0

Answer:

No thanks

Step-by-step explanation:

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Prove that if d|m and d|n, then d|(m+n)
Mila [183]
d\mid m means to say there is some k_1 such that m=dk_1. Similarly, d\mid n is equivalent to saying there exists k_2[/te]x such that [tex]n=dk_2.

Now, m+n=dk_1+dk_2=d(k_1+k_2)=dk_3, i.e. there is some k_3 such that m+n is a multiple of d, i.e. d\mid(m+n).
5 0
4 years ago
A bag of marbles contains 4 green marbles, 3 blue marbles, 2 red marbles, and 5 yellow marbles. How many total possible outcomes
asambeis [7]

Answer:

4, because if you chose any one from the 4 green marble the answer is 1 because all are same coloured, you can chose one green or one red or one blue or one yellow

Step-by-step explanation:

.

8 0
3 years ago
For what values of a does the equation
mihalych1998 [28]

Answer:

The value of a which equation have 2 , - \frac{7}{4}  

Step-by-step explanation:

Given expression as :

2 a - 4 x = 4 - a² × x

The equation lies in the interval ( - 8 , - 2 )

∵ equation lies in the interval , so it must satisfy the equation

So , 2 a - 4 × ( - 8 ) = 4 - a² × ( - 8 )

Or,  2 a + 32  = 4  + 8 a²

Or,    a + 16 = 2 + 4 a²

So, equation can be written as :

   4 a² - a - 14 = 0

Or, 4 a² - 8 a + 7 a - 14 = 0

Or, 4 a ( a - 2 ) + 7 ( a - 2 ) = 0

Or,      ( a - 2 ) ( 4 a + 7 ) = 0

∴    a = 2    And - \frac{7}{4}  

Hence The value of a which equation have 2 , - \frac{7}{4}  Answer

8 0
3 years ago
F(4) if f(x) = 3x - 1
pashok25 [27]

Answer:

f(4) = 11

Step-by-step explanation:

To evaluate f(4) substitute x = 4 into f(x)

f(4) = 3(4) - 1 = 12 - 1 = 11

5 0
3 years ago
Please help!!! I need help!
GrogVix [38]
4x+5=8x-11 solve for X then plug back into 4x+5 for the measure of angle QST
8 0
4 years ago
Read 2 more answers
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