All categories

2 years ago

Which is the difference of 6 - (-1).

Mathematics

2 answers:

anyanavicka [17]2 years ago

7 0

Answer: 7

Step-by-step explanation:

The minus sign and negative will change into their opposite operation. So from minus to plus and from negative fo positive.

When subtracting the minus changes into a plus sign so you also have to change the sign of the subtrahend.

I tried explaining it the best that i can

Savatey [412]2 years ago

5 0

The answer would be 7. The two minus signs cancel each other out and turn into a plus sign.

You might be interested in

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

8 0

2 years ago

5(x+3)-5<br> simplify this.

nignag [31]

Answer:

5x+10

Step-by-step explanation:

Distribute:

=(5)(x)+(5)(3)+−5

=5x+15+−5

Combine Like Terms:

=5x+15+−5

=(5x)+(15+−5)

=5x+10

8 0

2 years ago

632x27 and explaination

12345 [234]

17,064. Do multipcation and line numbers up, remember to carry.

8 0

2 years ago

The quantity of soap produced in 2009 is 3000bars. if this is a 20% increase of what was produced in 2008.what is the quantity o

mr Goodwill [35]

2,400
20% of 3,000= 600
3,000 - 600= 2,400

6 0

2 years ago

Solving equations with one variable

kupik [55]

Answer:

1) b= -20

Step-by-step explanation:

You bring the variable you want to find to one side by either bringing over the second term to the other side of the equation and change its sign or if it's a fraction you multiply both sides to remove the denominator and then solve

5 0

2 years ago