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Dmitrij [34]
2 years ago
6

Hi!!!! could someone please help im the middle of taking a test

Mathematics
1 answer:
Anestetic [448]2 years ago
3 0

Answer:

64.6

Step-by-step explanation:

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How much more intense is an earthquake that measures 7.5 on the Richter scale than one that measures 6.2?
PolarNik [594]
It would be 1.3 less than the other.
7 0
3 years ago
Whoever can answer this I would really appreciate it
Trava [24]

Slope = change in y / change in x


Use the two pints shown on the graph.


Slope = ( 0- -2) / ( -6 -2)

Slope = 2/-8

Slope = -1/4


answer: slope = -1/4

4 0
2 years ago
Read 2 more answers
Put the following equation in standard form and determine the quadratic, linear, and constant coefficients. -3x2 - 8 = 5x - 7
marusya05 [52]

Answer:

  • -3x² -5x -1 = 0
  • -3 (quadratic)
  • -5 (linear)
  • -1 (constant)

Step-by-step explanation:

The equation will be in standard form when terms are listed in order of decreasing degree, and the right side of the equation is 0.

<h3>Standard form</h3>

We can subtract the right-side expression from both sides to get standard form.

  -3x² -8 -(5x -7) = 5x -7 -(5x -7)

  -3x² -8 -5x +7 = 0 . . . . . . . simplify a bit

  -3x² -5x -1 = 0 . . . . . . . . . collect terms

The standard form equation can be written ...

  -3x² -5x -1 = 0

<h3>Coefficients</h3>

The quadratic coefficient is the coefficient of the term with degree 2. The quadratic coefficient is -3.

The linear coefficient is the coefficient of the term with degree 1. The linear coefficient is -5.

The constant coefficient is the coefficient of the term with no variables. The constant is -1.

__

<em>Additional comment</em>

We can make the leading coefficient positive by multiplying the equation by -1. This gives ...

  3x² +5x +1 = 0

with quadratic, linear, and constant coefficients 3, 5, 1.

This is a legitimate answer to this question. In the case of linear equations, the "standard form" has the constant on the right side of the equal sign, and the leading coefficient is required to be positive. A negative leading coefficient can sometimes lead to errors (when the sign is overlooked), so having a positive leading coefficient is often preferred.

8 0
2 years ago
Two numbers are such that if 11 is added to the first number, a number twice
Bezzdna [24]

Answer:

The 2 numbers are 14 and 17.

Step-by-step explanation:

Let the 2 numbers be x and y.

x + 11 = 2y

x - 2y = -11...............A

y +20 = 2x

2x - y = 20 ...............B

Multiply equation A by -2:

-2x + 4y = 22............C

Adding B and C :-

3y = 42

y = 14.

Substitute y = 14 in equation A:

x - 2(14) = -11

x = -11 + 28

x = 17.

5 0
3 years ago
Write an algebraic expression for the following: The sum of 8 and x minus 3.
Igoryamba
8+ (x-3)
this would be the answer
3 0
3 years ago
Read 2 more answers
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