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2 years ago

Y = -x2 + 4 y = 2x + 1 (10 points)

Mathematics

1 answer:

kramer2 years ago

3 0

Answer:

(3/4,5/2)

Explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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Given the equation 5 + x - 12 = x- 7.

marusya05 [52]

Answer:

Step-by-step explanation:

5 + x - 12 = x- 7 (Add the 5 and -12 to simplify)

x - 7 = x - 7 (notice its the same on both sides of equal sign. Add 7 to both sides)

x = x

solution is all real numbers

Part B

5 - 4 - 12 = -4 - 7

-11 = -11

5 + 0 - 12 = 0 - 7

-7 = -7

5 + 5 - 12 = 5 - 7

-2 = -2

8 0

2 years ago

A vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made.

likoan [24]

Answe(0.5x²-180x+25,885= 47,925.25

Step-by-step explanation:

x=1

8 0

1 year ago

What’s is the slope of the lin

Lady bird [3.3K]

Answer:

1/3

Step-by-step explanation:

Method 1.

slope = rise/run

Rise is vertical distance.

Run is horizontal distance.

Find two points that are easy to read (on grid intersections):

(2, -1) and (5, 0).

Start at (2, 1). You need to go to (5, 0) by moving only vertically and horizontally. Go up 1 unit. That is a rise of 1. Now go right 3 units. That is a run of 3.

rise = 1

run = 3

slope = rise/run = 1/3

Method 2.

Use the slope formula and two points on the line.

$slope = m = \dfrac{y_2 - y_1}{x_2 - x_1}$

Use points (2, -1) and (5, 0).

$slope = m = \dfrac{0 - (-1)}{5 - 2}$

$slope = m = \dfrac{0 + 1}{3}$

$slope = m = \dfrac{1}{3}$

slope = 1/3

8 0

2 years ago

Plz plz plz help me Plz tell me the correct answer

77julia77 [94]

Answer:

Question 1:

The smallest 5-digit no. is 10,000

The product of its prime factors is:

=> 10,000 = 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5

Question 2:

The prime factors of 1729 are:

=> 1729 = 7 × 13 × 19

The relation between their 2 consecutive prime factor is that when they both are subtracted, they give the result 6

Such as :

=> 13-7 = 6

=> 19-13 = 6

Hope this helps!

Don't hesitate asking anything regarding this question!

7 0

3 years ago

Read 2 more answers

Math 7a using number sense to solve equations

Anika [276]

Simple...

you have: $\frac{n}{3} =12
$

and

$\frac{n}{3} =-12$

To solve for.... $\frac{n}{3} =12$

Multiply to remove the denominator-->>

$3* \frac{n}{3} =12*3$

n=12*3

n=36

Then-->>>

$\frac{n}{3} =-12$

Do the same thing-->>

$3* \frac{n}{3} =-12*3$

n=-12*3

n=-36

Thus, your answer.

6 0

3 years ago