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3 years ago

What's negative five twelfths minus three tenths?

2 answers:

6 0

-5/12 minus 3/12= ? since the equation above also means -5/12 + -3/12, you can solve it like that. for me, the way I wrote above is easier for me to solve, so I would solve it like that. you should solve it however you find easiest. okay, since both denominators are 12 you wouldn't have to change them, so you would keep the denominatior as 12. for the numerator, we have to add -5 + -3 (or again, you can just do -5 minus 3) and the answer would be -8. The answer is -8/12. That simplified is -2/3 (divide both by 4). Hope I helped!

Scorpion4ik [409]3 years ago

3 0

-0.7166666666666666 that is the answer I got but can be rounded to -0.72

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I'm kind of confused on what I got wrong on this math question....can someone plz explain

skelet666 [1.2K]

(2x - 8) - (4x + 8)

first look at the x

2x - 4x = -2x

-2x is left over

then look at the numbers

8 - (-8)

in the case of having two negatives, it becomes positive, and so it is really 8 + 8

8 + 8 = 16

-2x - 16 is your answer

hope this helps

4 0

4 years ago

Read 2 more answers

Find the lines slope and a point on the line.

sesenic [268]

Answer:

The slope is 3/4 and a point on the line is (-5,2)

Step-by-step explanation:

This is given in point slope form

y - y1 = m(x-x1)

where m is the slope and (x1,y1) is a point on the line

y-2 = 3/4(x +5)

y-2 = 3/4(x - -5)

The slope is 3/4 and a point on the line is (-5,2)

7 0

3 years ago

Read 2 more answers

Point C ∈

Korolek [52]

Answer:

AC: 11 cm
CB: 22 cm

Step-by-step explanation:

Given:

AC + CB = 33

CB = 2AC

Find:

AC, CB

Solution:

Using substitution, we have ...

AC +2AC = 33

AC = 33/3 = 11

CB = 2·11 = 22

AC = 11 cm; CB = 22 cm.

7 0

3 years ago

A cheer squad of 8 cheerleaders raised $317.30. They need $622.42 to

adell [148]

Answer:

Each cheerleader needs to raise 38.14 more

Step-by-step explanation:

6 0

3 years ago

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The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated b

storchak [24]

Answer:

A task time of 177.125s qualify individuals for such training.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by

$Z = \frac{X - \mu}{\sigma}$

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem, we have that:

A distribution that can be approximated by a normal distribution with a mean value of 145 sec and a standard deviation of 25 sec, so $\mu = 145, \sigma = 25$ .