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3 years ago

What will the sign be on the solution to this problem: (-3)(-4)(5)(6)(-7) + -

Mathematics

2 answers:

lawyer [7]3 years ago

6 0

Answer:

Negative

Step-by-step explanation:

$(-3)(-4)(5)(6)(-7)\\\\-3*-4*5*6*-7\\\\\boxed{-2520}$

The product has a negative sign.

Brainilest Appreciated.

Korvikt [17]3 years ago

4 0

Answer:

Step-by-step explanation:

becuase (-3)(-4) will give you a positive and when you mutipy it with the 5 and 6 you will still get postive but when you multiply with -7, you will get a negitive

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The manager of a factory wants to compare the mean number of units assembled per employee in a week for two new assembly techniq

antoniya [11.8K]

Answer:

The most appropriate inferential statistic test in the present situation is the;

b. Two-sample t-test

Step-by-step explanation:

From the question, we have;

The number of subjects in each sample, n₁ = 100

The number of samples = 2

The nature of the test = To compare the two means

The value of the population standard deviation, σ = Unknown

From the given parameters, we have;

The t-test is a method of inferential statistics for determining whether the difference between the mean of two groups is significant, that is if the observed difference are due to chance, where the groups are likely to have some characteristics that are related

The t-test is utilized when testing an hypothesis, and it is used for small samples, where the population standard deviation is unknown

The types of t-test used are;

a) One-sample t-test

b) Two-sample t-test

c) Paired Sample t-test

Therefore, a two-sample t-test is most appropriate.

3 0

2 years ago

Given the equation 2x = 4y - 3 write another linear equation that would create a system that has the number of solutions listed

Harman [31]

Answer:

A. $2x-4y=\pi$
B. $x=1$

C. $2x-4y=3$

Step-by-step explanation:

A. $2x-4y=\pi$ . Any number could work as long as the coefficients for x and y stays the same. You are basically imposing that the quantity 2x-4y (if you bring 4y to the LHS) is equal to both -3 AND $\pi$ , or any number you like. But yesterday was 3/14 so let's pick a fun number!

B. $x=1$ Or $y=1$ . Or as long as you don't pick the same ratios of x and y you're golden. But x=1 is the easiest that comes to mind

C. $2x-4y=3$ . To get infinitely many solutions you just have to rewrite the equation again. Maybe move things around if you prefer, or multiply everything by a number you lile.

7 0

2 years ago

The inverse of G(x) is a function. A. True . B. False

Flauer [41]

Answer:

The answer of this question is FALSE.

8 0

3 years ago

Read 2 more answers

Solve the right triangle ABC with right angle C if B=30 degrees and c=10.

kenny6666 [7]

C=10, C=90°, B=30°, A+B+C=180°
A+30°+90°=180°⇒A=60°

cos30°=a/c
cos30°=a/10⇒a=cos30°*10
a≃8.6602

c²=a²+b²⇒b²=c²-a²
b²=10²-8.6602²⇒b²=25
b=5

3 0

3 years ago

Read 2 more answers

There are six multiple-choice questions on an exam, each with four possible answers. (a) Determine the number of possible answer

Lubov Fominskaja [6]

Answer:

$Possible\ Answers = 4096$