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Helga [31]
3 years ago
12

Help me on number 7 pls

Mathematics
2 answers:
stich3 [128]3 years ago
7 0
The answer is (d) not (c) beacuse -7+7=0
11111nata11111 [884]3 years ago
6 0

Answer:

the answer in not c because 7+7=14(take only positive (+) magnitude)

Step-by-step explanation:

the answer is d because 7+0=<u>7</u>

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If 4x+y= x solve for x.
erik [133]

4x+y= x

Move all x term to left side

4x-x+y=0

Subtract 4x from 3x

3x+y=0

Move y term to right side

3x= -y

Divide both sides by 3

X= -y/3



Ok so if it's


4x+y= z solve for x


Move y to right side


4x= -y +z


Now divide both by 4 to get x alone


X= -y/4 + z/4

6 0
3 years ago
Point A is located at negative 5/8 and point B is located at negative 2/8 . What is the distance between points A and B? (1 poin
Alisiya [41]

Answer:

3/8

Step-by-step explanation:

Just subtract 5/8 by 2/8 and you get 3/8

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3 years ago
1. While solutions to the general quintic equation in terms of radicals are impossible to obtain, they do exist. Prove that the
Marta_Voda [28]

Answer:

Step-by-step explanation:

Given is a function as x^5-3x+1

Equating to 0 we have equation

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Let us use remainder theorem and change of signs rule

f(0) = 1>0

f(-1) = -1+3+1=3

f(-2) = -32+6+1<0

This implies there is a real root between -1 and -2.

f(1) = -1

Since f(0) and f(1) have different signs, there exists a real root between 0 and 1.

f(2) = 32-6+1>0

Since f(1) and f(2) have different signs there exists a real root between 1 and 2.

Thus there are definitely three real solutions as

one between -1 and 0, one between 0 and 1, and third between 1 and 2.

3 0
4 years ago
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If 1/64=4^2s-1 times 16^2s+2 what is the value of s?
galina1969 [7]
S=-1 see attachment for explanation

4 0
3 years ago
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I need help on this problem
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