All categories

3 years ago

What is the difference between -8 and -4?

Mathematics

2 answers:

lilavasa [31]3 years ago

5 0

Answer:

-4

Step-by-step explanation:

8-4=4

Alekssandra [29.7K]3 years ago

3 0

-12, sorry but I’m not really in the mood to explain but Bc they’re both negative you add them.

You might be interested in

What is the answer to, - (-x - 3)?

bekas [8.4K]

Step-by-step explanation:

$(+)(+)=(-)(-)=(+)\\(+)(-)=(-)(+)=(-)\\\\-(-x-3)=-1(-x-3)\qquad\text{use the distributive property}\\\\=(-1)(-x)+(-1)(-3)=x+3$

3 0

3 years ago

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

$H_0: Mean = 30\\H_a: Mean >30$

(Right tailed test)

Sample size = $n=250$

Sample mean = 30.45

Mean difference = $30.45-30=0.45\\$

Sample std dev s = 5

Sample std error = $\frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163$

Test statistic = Mean diff/std error = $=\frac{0.45}{0.3163} =1.423$

Since population std deviation is not know we use t test

p value = $0.077994$

4 0

3 years ago

Simplify the following expression:

nalin [4]

-2/2 I think probably

3 0

3 years ago

If the outliers are not included, what is the mean of the data set?

luda_lava [24]

The mean of the numbers is c. 67

3 0

3 years ago

Solve: 3 = -2v - V V=

Y_Kistochka [10]

Answer:

V = −1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3=−2v−v

3=−2v+−v

3=(−2v+−v)(Combine Like Terms)

3=−3v

Step 2: Flip the equation.

−3v=3

Step 3: Divide both sides by -3.

−3v = 3

-3 -3

v=−1

4 0

3 years ago

Read 2 more answers