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Len [333]
4 years ago
11

Where does the line y= -3x+7 cross the y-axis

Mathematics
1 answer:
morpeh [17]4 years ago
7 0

Answer:

(0, 7 )

Step-by-step explanation:

Where the line crosses the y- axis the x- coordinate of the point is zero.

Substitute x = 0 into the equation and evaluate for y

y = - 3(0) + 7 = 0 + 7 = 7 ⇒ (0, 7 )

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I need help I don’t get this at all
dolphi86 [110]

Answer:


Step-by-step explanation:

function

5 0
4 years ago
the square of 9 more than a number is equal to 9 more than the square of the number. what is the number?
AnnZ [28]
(x+9)^2 = x^2 +9
x^2 +18x + 81 = x^2 +9
18x = -72
 x = -4
3 0
3 years ago
3x+2y=46 x+y=17 how u solve
taurus [48]

Answer: (12, 5)

Step-by-step explanation:

3x + 2y = 46 x + y = 17

Subtract y from both sides of the equation.

x = 17 − y 3x + 2y = 46

Replace all occurrences of x with 17 − y in each equation.

   51 − y = 46

x = 17 − y

Solve for y in the first equation.

Move all terms not containing y to the right side of the equation.

Subtract 51 from both sides of the equation.

   −y = 46 − 51

   x = 17 − y

Subtract 51 from 46.

   −y = −5

   x = 17 − y

Multiply each term in −y = −5 by −1

Multiply each term in −y = −5 by −1. (−y) ⋅ −1 = (−5) ⋅ −1

   x = 17 − y

Multiply (−y) ⋅ −1.

   y = (−5) ⋅ −1

   x = 17 − y

Multiply −5 by −1.

y = 5

x = 17 − y

Replace all occurrences of y with 5 in each equation.

Replace all occurrences of y in x = 17 − y with 5. x = 17 − (5)

y = 5

Simplify 17 − (5).

Multiply −1 by 5.

x = 17 − 5

y = 5

Subtract 5 from 17.

x = 12

y = 5

The solution to the system is the complete set of ordered pairs that are valid solutions.

(12, 5)

The result can be shown in multiple forms.

Point Form: (12, 5)

Equation Form: x = 12, y = 5

8 0
3 years ago
-4 2/5 ÷ (-5)<br><br> my options are -22/25<br> -8/25<br> 8/25<br> 22/25
yarga [219]
-4 2/5 / -5

-4 2/5 = -22/5
-5 = -5/1

-22/5 / -5/1
Flip -5/1 to multiply
-22/5 x 1/-5
Numerator x numerator / denominator x denominator
-22 x 1 = -22
5 x -5 = -25
-22/-25 = 22/25

The answer is 22/25.
3 0
3 years ago
399 times 43 and work
Goshia [24]
17,157 is the answer to your question...I can't really put down work with texting
5 0
4 years ago
Read 2 more answers
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