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3 years ago

Rule for adding integers with different signs

Mathematics

2 answers:

lawyer [7]3 years ago

7 0

If u add 2 negatives you will get a positive

dsp733 years ago

3 0

Answer:

Step-by-step explanation:

If the signs are the same, add the numbers then use the sign of the bigger number.

Example: -25-15=-45

If the signs are different, subtract the smaller number from the larger number, then use the sign of the larger number

Example: -25+15=-10

Hope this helps :)

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You spin the spinner and flip a coin. Find the probability of the compound event.

Andrews [41]

Answer:

1/10.

Step-by-step explanation:

Prob(Spinning a 1) = 1/5.

Prob(Flipping a Head) = 1/2.

Probability of a 1 then a head = 1/5 * 1/2 = 1/10.

Note: we multiply the probabilities because the 2 events are independent.

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3 years ago

Simplify the expression: (sinx-1)(tanx+secx)

nevsk [136]

sinx-1 evaluates to s-1

tanx+secx evaluates to t+sHere, you are trying to multiply two binomials together. To work this problem, we'll use the "F.O.I.L." method. First, we'll multiply the two First terms, the s and t together. Second, we'll multiply the two Outer terms, the s and s together. Third, we'll multiply the two Inner terms, the -1 and t together. Lastly, we'll multiply the two Last terms, the -1 and s together. The correct answer is st + s^2 - t - sThank you for posting your question. I hope that this answer helped you. Let me know if you need more help.

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3 years ago

Complete the data table for the function f(x) = -x - 2 + 2.

alexgriva [62]

Given the following function:

$\text{ f(x) = }\sqrt[]{-x\text{ -2}}\text{ + 2}$

y = f(x)

Therefore, let's complete the data table by substituting each x-values to be able to get the respective y-values,

We get,

At x = -2,

$\text{ y = f(x) = }\sqrt[]{-x-2}\text{ + 2}$ $\text{f(-2) = }\sqrt[]{-(-2)-2}\text{ + 2}$ $\text{ = }\sqrt[]{2\text{ - 2}}\text{ + 2}$ $\text{ = }\sqrt[]{0}\text{ + 2}$ $\text{ y = f(-2) = 2}$

Therefore, y = 2 at x = -2.

At x = -3,

$\text{ y = f(x) = }\sqrt[]{-x-2}\text{ + 2}$ $\text{f(-3) = }\sqrt[]{-(-3)-2}\text{ + 2}$ $\text{= }\sqrt[]{3-2}\text{ + 2}$ $\text{= }\sqrt[]{1}\text{ + 2}$ $\text{= }1\text{ + 2}$ $\text{ f(-3) = 3}$

Therefore, y = 3 at x = -3.

At x = -6,

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1 year ago

Can u guys help me with this assignment

n200080 [17]

Answer:

1: ratio

2: decimal

3: fraction

Step-by-step explanation:

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