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4 years ago

Which of the following expressions is equivalent to 6 - (-5)?

Mathematics

2 answers:

attashe74 [19]4 years ago

8 0

6 + 5 = 6 - (-5)

If you subtract a negative number from something, the two negatives cancel out.

Advocard [28]4 years ago

4 0

Answer:

$6+5$

Step-by-step explanation:

$6-(-5)$

** Two of the same signs(-- or ++) result in a positive sign.

$6-(-5)=6+5$

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Antony purchases his Play Station 5 for $1,099 from Best Buy near the Parks Mall. The sales tax is 8.25%. How much does he pay f

hram777 [196]

Answer: $90.67

Step-by-step explanation:

Sales taxes are paid per good purchased to the IRS and are more often than not, collected at the point of sale by the seller.

The sales tax paid on the PlayStation can be calculated by the formula:

= Price of purchase * Sales tax percentage

= 1,099 * 8.25%

= $90.67

6 0

3 years ago

Help what’s the answer

-BARSIC- [3]

Would be x^2-5-6 so the 0s would be (x-6)(x+1) so 6 and -1

7 0

3 years ago

you have a part time job. you work 3 hours on friday and 6 hours on saturday. you also receive an allowance of $20 per a week. y

klemol [59]

$92/week is the amount of money you gained from work combined with your $20/week allowance money.

92 - 20 = 72 (total money made per week subtract allowance money leaves money made from work)
Thus, you make $72/week at your part time job.

You work a total of 9 hours. (3hrs on Fri & 6hrs on Sat added together)
72/9 = 8 (total amount of money made divided by the 9 hrs you worked for - gives amount of money you make per hour)
Thus, you make $8/hr at your part time job.

8 0

3 years ago

Billy has $3.00. Bubble gum costs $.30. He bought four pieces.

xenn [34]

Answer:

$0.30 x 4= $1.20

$3.00 divided by $1.20= $1.80

Step-by-step explanation:

I hope this is what you were looking for

7 0

4 years ago

Read 2 more answers

f the dean wanted to estimate the proportion of all students receiving financial aid to within 3% with 99% reliability, how many

Oksanka [162]

Answer:

n=1849

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by $\alpha=1-0.99=0.01$ and $\alpha/2 =0.005$ . And the critical value would be given by: