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Naddika [18.5K]
3 years ago
7

(08.06)

Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer:

(x-7)(x+7)

Step-by-step explanation:

x^2 -49

This is the difference of squares

x^2 -7^2

We know that a^2 -b^2 = (a-b)(a+b)

(x-7)(x+7)

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3x +2y=10 4x-y=6 using substitutional method​
Anna11 [10]

Answer:

( 2 , 2 )

Step-by-step explanation:

Solve the eqaution :

3x +2y=10

4x-y=6

Solve the eqaution for y :

3x + 2y = 10

y = -6 + 4x

Substitute for y : 3x + 2 ( -6 + 4x ) = 10

x = 10

Substitute for the value of x : x = 2

Substitute the given value of x into the eqaution

y = -6 + 4x : y = -6 + 4 × 2

Solve the eqaution: y = -6 + 4 × 2

solve the eqaution for y : y = 2

y = 2 A possible solution : the ordered solution pair is

( 2 , 2 )

8 0
3 years ago
If y= 2x + 7 were changed to y = 5x+7, how would the graph of the new
Amanda [17]

Answer:

C is correct

Step-by-step explanation:

Comparing the to equation with slope intercept form: y=mx+c

The second equation has the greatest slope, which is indicating that the line is steeper.

4 0
3 years ago
Use the function f(x)=2x^3-3x^2+7 to complete the exercises
Anastaziya [24]

To answer this set of questions, all we have to do is just to substitute the value of x in F(x) to the given f(x) equation. 

By substitution and following PEMDAS rule:<span>
F(-1)=2(-1)³-3(-1)²+7=5</span>

F(1)=2(1)³-3(1)²+7=6

F(2)=2(2)³-3(2)²+7=11

Therefore the answers are 5, 6 and 11.

<span> </span>

8 0
3 years ago
Read 2 more answers
Question in attachment​
Mrac [35]

Answer: position

Step-by-step explanation: you’re welcome

7 0
2 years ago
At a state fair, every go-kart goes at most 40 mi/h.
Volgvan

Answer: s _< 40

Step-by-step explanation:

7 0
3 years ago
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