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Gnom [1K]
2 years ago
11

Plzzzzzzzzzzzzzzzzzzz help soon asap

Mathematics
2 answers:
asambeis [7]2 years ago
8 0

Answer:

m=\frac{5}{4}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-10, -4)

Point (10, -29)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                    m=\frac{-29+4}{10+10}
  2. Add:                                     m=\frac{-25}{20}
  3. Simplify:                               m=\frac{5}{4}
NemiM [27]2 years ago
8 0

Answer: -1.25

Step-by-step explanation:

You can use a graph to help. Plot the points first, then draw a line through them. Then, count the points that rise, over the amount of points that run.

You can also do it the computational way without a graph.

Use this equation:

m = (y2 - y1) / (x2 -x1)

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Contact [7]

Answer:

I got the same question on Khan Academy. I was going to ask that too but saw that you already did. Maybe try to point it out to someone else on Brainly.  Sorry that I could not help.

Step-by-step explanation:

7 0
2 years ago
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If 2(4x + 3)/(x - 3)(x + 7) = a/x - 3 + b/x + 7, find the values of a and b.
zmey [24]

Answer:

a=3 and b=5.

Step-by-step explanation:

So I believe the problem is this:

\frac{2(4x+3)}{x-3}(x+7)}=\frac{a}{x-3}+\frac{b}{x+7}

where we are asked to find values for a and b such that the equation holds for any x in the equation's domain.

So I'm actually going to get rid of any domain restrictions by multiplying both sides by (x-3)(x+7).

In other words this will clear the fractions.

\frac{2(4x+3)}{x-3}(x+7)}\cdot(x-3)(x+7)=\frac{a}{x-3}\cdot(x-3)(x+7)+\frac{b}{x+7}(x-3)(x+7)

2(4x+3)=a(x+7)+b(x-3)

As you can see there was some cancellation.

I'm going to plug in -7 for x because x+7 becomes 0 then.

2(4\cdot -7+3)=a(-7+7)+b(-7-3)

2(-28+3)=a(0)+b(-10)

2(-25)=0-10b

-50=-10b

Divide both sides by -10:

\frac{-50}{-10}=b

5=b

Now we have:

2(4x+3)=a(x+7)+b(x-3) with b=5

I notice that x-3 is 0 when x=3. So I'm going to replace x with 3.

2(4\cdot 3+3)=a(3+7)+b(3-3)

2(12+3)=a(10)+b(0)

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Divide both sides by 10:

\frac{30}{10}=a

3=a

So a=3 and b=5.

4 0
2 years ago
Read 2 more answers
Values equivalent to 1/4​
mylen [45]

Answer:

0.25, 4/16, theres like a million more

Step-by-step explanation:

is that what youre looking for?

6 0
3 years ago
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What is the estimation for 5.79 x 345?
erastovalidia [21]

Answer:

19975

Step-by-step explanation:

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2 years ago
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The sum of four consecutive even integer numbers is 84. find the four numbers.
vodomira [7]

84/4=21

 now take the 2 even numbers below 21 and the 2 even numbers above 21

18 +20 + 22 +24 = 84

 the numbers are 18, 20, 22 & 24

3 0
2 years ago
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