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Reika [66]
3 years ago
15

Consider the system of linear equations. 7 x + 16 y = negative 2. 9 x minus 4 y = 22. To use the linear combination method and a

ddition to eliminate the y-terms, by which number should the second equation be multiplied? –4 Negative one-fourth One-fourth 4
Mathematics
2 answers:
bija089 [108]3 years ago
5 0

Answer:

4

Step-by-step explanation:

bearhunter [10]3 years ago
4 0

Answer:

4

Step-by-step explanation:

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X^2 - 4x - 77 = 0 Factor and check
Olenka [21]
X² - 4x - 77 = 0

( x + 7) ( x - 11)

x + 7 = 0

x - 11 = 0

x = -7
x = 11
7 0
3 years ago
GIVING A BRAINLIST IF U CAN ANSWER THESE QUESTIONS PLEASEEE!!
Leviafan [203]

Step-by-step explanation:

1)

Hypotenuse2 = Perpendicular2 + Base2

c2 = a2 + b2

therefore,

c2 = (10)2 in + (24)2 in

c2 = 100 + 576

c2 = 676

c = √676

c = 26

7 0
2 years ago
What is the scale factor of the two triangles below?
vodka [1.7K]
Answer:

3/4

Explanation:

15 is 3/4 of 20
3 is 3/4 of 4
6 is 3/4 of 8
6 0
3 years ago
Find the value of 4²+6÷2
belka [17]

The answer is:    " 19 " .

_____________________

Explanation:

To solve:

_____________________

Given:

" 4² + 6 ÷ 2 " ;

We solve using "PE MD AS" (mnemonic device for order of operations in order of consideration);  which stands for:

           "Please Excuse My Dear Aunt Sally (or Aunt Susan)" ;

Alternately:  "BE MD AS"  

           " Be Excused My Dear Aunt Sally (or Aunt Susan)" .

                         "Parentheses {alternative version:  "Brackets" ; in which "Parentheses can be considered "Brackets" ; yet in reality, Brackets would come before Parentheses}, then Exponents, then "Multiplication then Division (from left to right as they occur in the problem) , then "Addition then Subtraction (from left to right as they occur in the problem) .

_____________________

As such:  

Given:   " 4² + 6 ÷ 2 " , we have:  

"exponents", "addition" and "division" ;

So we can rewrite the problem as:

   "  (4²) + (6 ÷ 2) =

      (4 * 4) + (3)  =

       (16)   +  (3)  =  19 .

_______________________

The answer is:    " 19 " .

_____________________

7 0
3 years ago
Find the range if the domain is -1. y= 2x^2 + 5x - 17
aleksley [76]

Answer:

I think its 17

Explanation:

Sorry If Im wrong

5 0
3 years ago
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