All categories

2 years ago

What is the solution to the system of equations?

Mathematics

2 answers:

qwelly [4]2 years ago

8 0

Answer:

ans: D

Step-by-step explanation:

suppose

y = 3x +1 be equation••••••1

and

y = -2x - 4

-y= 2x + 4 be equation ••••••2

add equation 1 and 2 as

y = 3x + 1

-y = 2x + 4

0 = 5x + 5

so ,

5x = - 5

x = - 1

put x In either equation 1 or 2 to get y= - 2

OR,

since given equation intersects each other ,

use substitution method ,

Ulleksa [173]2 years ago

6 0

Answer:

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

The lines intersect at (- 1, - 2 ) ← solution → D

You might be interested in

Is the equation below a function? explain d) y2 = x2 + 5

RoseWind [281]

Answer:

Step-by-step explanation:

y^2 = x^2 + 5

Rewriting

y^2 - x^2 = 5

This is a hyperbola

We can use the vertical line test to show that it is not a function since a vertical line passes through more than one point.

5 0

3 years ago

How do I solve this problem?

Liono4ka [1.6K]

Answer:

$10100$

Step-by-step explanation:

Use this formula,

$\frac{n}{2} (2 {a} + d(n - 1)$

where n is the amount of even intergers, a is the starting term, d is the common difference.

the amount of even intergers from 2 to 200 is 100
The starting number is 2
The common difference is 2

$\frac{100}{2} (4 + 2(99)$

$50(4 + 198)$

$50(202)$

$10100$

3 0

2 years ago

I'm not sure how to simplify this expression with the exponents rules of multiplication

Vedmedyk [2.9K]

The rule of exponential multiplication is (a^x)*(a^y)=a^(x+y)
using this with your expression, we can do
(10^1)*(10^3)*(10^2)=10^(1+3+2)=10^6
Final answer:
10^6 or 1 million
Hope I helped :)

3 0

3 years ago

What is the product of (2x+3) and (4x^2-6x+9)?

gogolik [260]

Answer:

=8x^3+27

Step-by-step explanation:

First you are going to multply 2x by all of the other numbers in the 2nd parentheses, then do the same with 3. By doing this you should get and answer then combine like terms.

4 0

3 years ago

Which functions are correctly graphed? Select all the correct answers

garri49 [273]

the second one, and the third one

4 0

3 years ago