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2 years ago

Change 8.6 x 10^-4 to decimal notation

Mathematics

1 answer:

Bezzdna [24]2 years ago

3 0

Answer: 0.0086

Step-by-step explanation:

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What are the coordinates for point c

iris [78.8K]

Answer:

(0,2)

Step-by-step explanation:

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2 years ago

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Y = 3x + 13 y = -2x - 22 substitution method show work pls someone help quick

laiz [17]

Answer:

x = -7

Step-by-step explanation:

3x + 13 = -2x - 22

subtract 13 from both sides

3x = -2x - 35

Add 2x to both sides

5x = -35

Divide each side by 5

x = -7

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2 years ago

Imagine you are teaching a younger student how to factor. Describe in full sentences what you would say to teach the young stude

djyliett [7]

Answer:

$x^2+ 4x - 21$ =(x-3)(x+7)

Step-by-step explanation:

To factor the trimonial: $x^2+ 4x - 21$ , we follow these steps:

Step 1: Multiply the first and last term

$-21 \times x^2=-21x^2$

Step 2: List out product factors of the term derived above

$-21=-1 \times 21\\ -21=-3 \times 7\\-21=3 \times -7\\-21=1 \times -21$

Step 3: Determine which of the factors sum up to the middle term 4x

The required product is: -3 and 7

Therefore: -3x+7x=4x

Step 4: Replace the middle term by the expression derived in step 3 and factorize.

$x^2+ 7x -3x- 21\\=x(x+7)-3(x+7)\\=(x-3)(x+7)$

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2 years ago

What is the value of

vitfil [10]

Answer:

Can you please write a logical question

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2 years ago

Death Valley has an elevation of -282 feet related to sea level plane how to use absolute value to describe the elevation of Dea

mart [117]

The absolute value is the number disregarding (ignoring) the positive or negative sign. So the absolute value of -282 is l 282 l :)

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3 years ago