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3 years ago

Which of the following is a solution of x2 + 4x + 6?

1 answer:

7 0

The answer is x2 + 4x + 6
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

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Is y=19x - 5 proportional

cricket20 [7]

Answer:

yes

Step-by-step explanation:

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3 years ago

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A 2.5-kg water receives thermal energy of 36, 575 J. By how much its temperature increases?

coldgirl [10]

Answer:

water has a specific heat capacity of 4180 j/kg degree cellos

8 0

3 years ago

N + 3 = -7 can anyone help me out

OverLord2011 [107]

QUESTION:

n + 3 = -7

ANSWER:

$\blue{\boxed{n = - 10}}$

STEP-BY-STEP EXPLANATION:

First, Subtract 3 from the both sides of the equation

$\blue{\boxed{n = - 7 - 3}}$

Last, Subtract 3 from - 7

$\blue{\boxed{n = - 10}}$

hope it's helps

4 0

3 years ago

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Solve by elimination -5x+8y=-27 -8x+7y=-20

Anika [276]

Answer:

x = -1 , y = -4

Step-by-step explanation by elimination:

Solve the following system:

{8 y - 5 x = -27 | (equation 1)

7 y - 8 x = -20 | (equation 2)

Swap equation 1 with equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

-(5 x) + 8 y = -27 | (equation 2)

Subtract 5/8 × (equation 1) from equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

0 x+(29 y)/8 = (-29)/2 | (equation 2)

Multiply equation 2 by 8/29:

{-(8 x) + 7 y = -20 | (equation 1)

0 x+y = -4 | (equation 2)

Subtract 7 × (equation 2) from equation 1:

{-(8 x)+0 y = 8 | (equation 1)

0 x+y = -4 | (equation 2)

Divide equation 1 by -8:

{x+0 y = -1 | (equation 1)

0 x+y = -4 | (equation 2)

Collect results:

Answer: {x = -1 , y = -4

7 0

3 years ago

10 POINTS IDENTIFY THE SLOPE, Y-INTERCEPT AND GRAPH. 1. Y = 2x + 3 2. Y = 3/4x - 2

Alenkasestr [34]

Answer for problem 1: slope = 2, y intercept = 3

Answer for problem 2: slope = 3/4, y intercept = -2

Explanation:

Both equations are in the form y = mx+b. This is known as slope intercept form. This is because we can read off the values of the slope and y intercept very quickly. We have y = 2x+3 match up with y = mx+b. The m is the slope and b is the y intercept. So m = 2 and b = 3 for this equation. A similar situation happens with the other equation as well. It might help to rewrite the second equation into y = (3/4)x + (-2).

4 0

3 years ago

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