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3 years ago

Explain how multiply or divide two integers with the same sighn and and with diffrent sighns

Mathematics

1 answer:

hoa [83]3 years ago

5 0

Multiplying and dividing integers with the same sign and different signs.

When multiplying and dividing with the same sign, the answer will always be positive.

6/3 = 2

-6*-3=18 (Two negatives make a positive)

-4/-2=2 (This is because there are two -2s in -4, so the answer will always be positive- also two negatives make a positive.)

When multiplying and dividing by different signs, the answer will always be negative.

3*-6= -18

4/-2 = -2

Because the answer will always by negative, you can multiply or divide normally and then just add the negative sign (-) in front of the answer.

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A linear function contains the following points: 0,-3 and 6,15.

9966 [12]

The slope of the linear function is 3 and the y-intercept is -3 if the linear function contains the following points: (0,-3) and (6,15)

<h3>What is the slope?</h3>

The ratio that y increase as x increases is the slope of a line. The slope of a line reflects how steep it is, but how much y increases as x increases. Anywhere on the line, the slope stays unchanged (the same).

$\rm m =\dfrac{y_2-y_1}{x_2-x_1}$

We have:

A linear function contains the following points: (0,-3) and (6,15)

The slope:

$\rm m =\dfrac{15-(-3)}{6-0}$

m = 18/6

m = 3

The equation of a line:

y = mx + c

Plug x = 0, y = -3

-3 = c

Thus, the slope of the linear function is 3 and the y-intercept is -3 if the linear function contains the following points: (0,-3) and (6,15)

Learn more about the slope here:

brainly.com/question/3605446

#SPJ1

4 0

1 year ago

Need help and explain it plz

FinnZ [79.3K]

Ok so you could use the equation h=t divided by w.
h represents the hours volunteered in one week.
t represents the amount of hours volunteered in the original amount of weeks.
w represents the original amount of weeks.
When you plug In the numbers you get h=72 divided by 12 which gives you h=6 so Penn volunteered 6 hours in one week.
You know the answer is reasonable because there are 168 hours in a week, so Penn could easily spend 6 hours a week volunteering.
Sorry if my explanation is confusing, but I tried to help. Good luck :)

8 0

3 years ago

Help me quickkkk please

Maurinko [17]

Answer:

with? i dont see any pic

5 0

2 years ago

LEIM deposits some money in an account which pays 5% simple interest per year, and twice that amount in an account paying 4% sim

Goshia [24]

Answer:

266.5

Step-by-step explanation:

$533.00*5%=266.5

7 0

2 years ago

Read 2 more answers

The town of Hayward (CA) has about 50,000 registered voters. A political research firm takes a simple random sample of 500 of th

timama [110]

Answer: (0.076, 0.140)

Step-by-step explanation:

Confidence interval for population proportion (p) is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

, where $\hat{p}$ = sample proportion.

n= sample size.

$\alpha$ = significance level .

$z_{\alpha/2}$ = critical z-value (Two tailed)

As per given , we have

sample size : n= 500

The number of Independents.: x= 54

Sample proportion of Independents $\hat{p}=\dfrac{x}{n}=\dfrac{54}{500}=0.108$

Significance level 98% confidence level : $\alpha=1-0.98=0.02$

By using z-table , Critical value : $z_{\alpha/2}=z_{0.01}=2.33$

The 98% confidence interval for the true percentage of Independents among Haywards 50,000 registered voters will be :-

$0.108\pm (2.33)\sqrt{\dfrac{0.108(1-0.108)}{500}}\\\\=0.108\pm2.33\times0.013880634\\\\=0.108\pm0.03234187722\\\\\approx0.108\pm0.032=(0.108-0.032,\ 0.108+0.032)=(0.076,\ 0.140)$

Hence, the 98% confidence interval for the true percentage of Independents among Haywards 50,000 registered voters.= (0.076, 0.140)

8 0

2 years ago