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4 years ago

How many solutions does the system of equations below have?

Mathematics

2 answers:

BaLLatris [955]4 years ago

6 0

Answer:

C: none

Step-by-step explanation:

Here we have two separate functions named 'y.' Eliminate 'y' temporarily by equating these functions together:

x + 2 = y = x - 1

Subtracting x from both sides, we get:

0 + 2 = y = 0 - 1, or

2 = -1

This is never true, so C is the correct answer: NO solutions.

An easier way in which to do this problem is to visualize the graphs of

y = x + 2 and y = x - 1. The graphs are parallel straight lines; they never intersect, and therefore we can conclude "no solution."

galben [10]4 years ago

4 0

Answer:

Step-by-step explanation:

You might be interested in

The triangles in the image are similar. Solve for x. A) 7 B) 6 C) 10 D) 5

Natalka [10]

ANSWER

A) 7

EXPLANATION

The given triangles are similar

Hence the corresponding sides are in the same proportion.

$\frac{3x + 4}{30} = \frac{30}{36}$

Simplify the right hand side:

$\frac{3x + 4}{30} = \frac{5}{6}$

Cross multiply;

6(3x+4)=5×30

Expand

18x+24=180

18x=150-24

18x=126

$x = \frac{126}{18} = 7$

4 0

3 years ago

. On a playground, there are 25

joja [24]

I think the answer is C

8 0

3 years ago

Help asap please!!!!

Alex73 [517]

Answer:

D. 84 square feet

Step-by-step explanation:

Hope this helps and have a nice day

5 0

3 years ago

May u please help me ill give out the brainly

Eddi Din [679]

Answer:

The answer is B.

Step-by-step explanation:

In order to solve this problem, you need to combine like terms, which in this case, are the x's. So, if you add the numbers with the x's together, you get 3x + 12y. The 12y remains untouched because there are no other terms with the same variable.

Hope this helped,

Philip

Brainliest always appreciated! <3

7 0

3 years ago

Plz help me, plz help deku!?!

DanielleElmas [232]

Answer:

14 cm squared

Step-by-step explanation:

The shaded triangle is clearly half of the rectangle, and half of 28 is 14.

The other way you can look at it is that the dimensions of the rectangle are 4 cm and 7 cm. The area of a triangle equation is $\frac{bh}{2}$ . So $\frac{4(7)}{2}$ is 14.

7 0

3 years ago