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3 years ago

5

Samuel walks forward 19 steps. He represents this movement with a positive 19. How would he represent the opposite of this numbe

r?

1 answer:

spayn [35]3 years ago

7 0

Answer: -38

Step-by-step explanation:

First he would have to walk back 19 steps to get back to his orginal position, then he would have to further go back another 19 steps.

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The first three steps of completing the square to solve the quadratic equation x² + 4x - 6 = 0, are

slavikrds [6]

Answer:

The next 3 steps are

Step 4: $(x+2)=\pm \sqrt{10}$

Step 5: $x=-2\pm \sqrt{10}$

Step 6: $x=-2+\sqrt{10}\ or\x=-2-\sqrt{10}$

Step-by-step explanation:

Given:

Quadratic Equation is

x² + 4x - 6 = 0

To Find:

x = ?

Solution:

Step 1: x2 + 4x = 6

Step 2: x2 + 4x + 4 = 6 + 4

Step 3: (x + 2)2 = 10

Step 4: $(x+2)=\pm \sqrt{10}$

Step 5: $x=-2\pm \sqrt{10}$

Step 6: $x=-2+\sqrt{10}\ or\x=-2-\sqrt{10}$

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3 years ago

Tom crossed the finish line 3.8 seconds after Steve. Steve finished the race in 45.1 seconds. If t represents Tom's race time, w

icang [17]

B is the correct answer not totally sure tho hope this helps

4 0

3 years ago

Read 2 more answers

Find the inverse of the following function

KatRina [158]

f-¹(x)= $\frac{2-7x}{x+2}$

Answer:

Solution given:

f(x)= $\frac{-2x+2}{x+7}$

Let f(x)=y

y= $\frac{-2x+2}{x+7}$

Interchanging role of x and y

x= $\frac{-2y+2}{y+7}$

doing crisscrossed multiplication

x(y+7)=-2y+2

now solve it:

xy+7x=-2y+2

keep like terms in one side

xy+2y=2-7x

take common

y(x+2)=2-7x

make a value of y

y= $\frac{2-7x}{x+2}$

So,

f-¹(x)= $\frac{2-7x}{x+2}$

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2 years ago

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What was the simple interest rate on a $8,000 Investment that was left in an account for 18 months and earned $360 in Interest?

Karolina [17]

I think it would be 8,228 I think if it is 8000 - 18+360 hopefully I am right

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3 years ago

-34 + 91 = -3 (4x + 1) + 6x

ra1l [238]

$-34 + 91 = -3(4x+1) + 6x\\57 = -12x - 3 + 6x\\6x = -60\\x= -10\\$

Thus x = -10.

Hope that helps!

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3 years ago

Read 2 more answers