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4 years ago

How do the expressions 72 divided by 9 and Negative 72 divided by (negative 9) compare when they are evaluated?

2 answers:

8 0

-77 divided by 9 has the result of a negative number because when you do a negative number multiplied/divided by a positive number you get a negative number as your product. When you divide -77 by -9 you get a positive number. Because when you divide/multiply two numbers that are negative you get a positive product. So the answer for -77/9 is -8. -77/-9 is 8

Oksi-84 [34.3K]4 years ago

6 0

Answer:

They compare because they have the same answer.

Step-by-step explanation:

negative divided or multiplied by negative becomes positive.

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The Hypotenuse-Leg Theorem states that if the hypotenuse and leg of one right triangle is congruent to the hypotenuse and corres

Dovator [93]

The hypotenuse leg theorem states that any two right triangles that have a congruent hypotenuse and a corresponding, congruent leg are congruent triangles.

4 0

4 years ago

Brenda cuts her grass every 15 days and trims her shrubs every 24 days. if brenda cut her grass and trimmed her shrubs on june

wariber [46]

To get the number of days that will pass before Brenda cuts her grass and shrubs on the same day will be found using least common multiple:
15=3×5
24=3×8
thus the LCM (24,15)=120 days
She will cut the grass again after 120 days

7 0

3 years ago

A researcher was interested in seeing how many names a class of 38 students could remember after playing a name game After playi

Andreas93 [3]

Answer:

Proportion of the students recalled more than 15 names is 91.77%.

Step-by-step explanation:

We are given that a researcher was interested in seeing how many names a class of 38 students could remember after playing a name game After playing the name game, the students were asked to recall as many first names of fellow students as possible.

The mean number of names recalled was 19.41 with a standard deviation of 3.17.

Let X = number of names recalled

SO, X ~ N( $\mu = 19.41,\sigma^{2} = 3.17^{2}$ )

The z-score probability distribution is given by ;

Z = $\frac{X-\mu}{\sigma} } }$ ~ N(0,1)

where, $\mu$ = mean number of names recalled = 19.41

$\sigma$ = standard deviation = 3.17

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

Now, proportion of the students recalled more than 15 names is given by = P(X > 15 names)

P(X > 15) = P( $\frac{X-\mu}{{\sigma} } }$ > $\frac{15-19.41}{3.17} }$ ) = P(Z > -1.39)

= P(Z < 1.39) = 0.9177 {using z table}

Therefore, proportion of the students recalled more than 15 names is 91.77%.

4 0

3 years ago

Help asap idek what to do

daser333 [38]

So to solve this question, your goal is to find out how the way it is solved is not correct.

Your answer would be: On the third line, the student adds the 8 to both sides instead of subtracting. The way the initial equation is given is

y-(-8)=-6(x-2). After distributing the six, the student should make the 8 positive because subtracting a negative makes a positive. After solving, the equation should look like: y(+8)=-6x+12, so you would subtract the 8 from both sides instead of adding it, and solve from there.

5 0

3 years ago

when latasha finished the next level of her video game she lost 70 points for each 5 targets she missed

nlexa [21]

Answer:350

Step-by-step explanation:you multiply the amount of points which is 70 times the amount of targets which is 5 so it’s 70x5=350

8 0

3 years ago