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2 years ago

Show all work to multiply (3+ /(-16))(6-/(-64))

Mathematics

2 answers:

Artemon [7]2 years ago

7 0

Answer:

undefined

Step-by-step explanation:

negative square root does not exist in set of real numbers

Reil [10]2 years ago

6 0

Answer:

=50

Step-by-step explanation:

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Need help due in 2 minutes!!!!<br><br> Find the missing terms in the sequence.

Len [333]

The missing terms are :

15.) 1

16.) 20

17.) 70

18.) 19/2

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2 years ago

Seventeen candidates have filed for the upcoming county council election. 7 are women and 10 are men a) Is how many ways can 10

tankabanditka [31]

Answer: (a) 19448 ways

(b) 5292 ways

(c) 0.2721

Step-by-step explanation:

(a) 10 county council members be randomly elected out of the 17 candidates in the following ways:

= $^{n}C_{r}$

= $^{17}C_{10}$

= $\frac{17!}{10!7!}$

= 19448 ways

(b) 10 county council members be randomly elected from 17 candidates if 5 must be women and 5 must be men in the following ways:

we know that there are 7 women and 10 men in total, so

= $^{7}C_{5}$ × $^{10}C_{5}$

= $\frac{7!}{5!2!}$ × $\frac{10!}{5!5!}$

= 21 × 252

= 5292 ways

= $\frac{ ^{7}C_{5} * ^{10}C_{5}}{^{17}C_{10}}$

= $\frac{5292}{19448}$

= 0.2721

8 0

3 years ago

One day for plumbers in five helpers earned $350. At the same rate of pay, another group of five plumbers and six helpers earned

schepotkina [342]

Answer: a plumber earns $50 each day and a helper earns $30 each day.

Step-by-step explanation:

Let x represent the amount that a plumber earns in a day.

Let y represent the amount that a helper earns in a day.

One day, four plumbers and five helpers earned $350. This means that

4x + 5y = 350 - - - - - - - - - - -1

At the same rate of pay, another group of five plumbers and six helpers earned $430. This means that

5x + 6y = 430 - - - - - - - - - - - - 2

Multiplying equation 1 by 5 and equation 2 by 4, it becomes

20x + 25y = 1750

20x + 24y = 1720

Subtracting, it becomes

y = 30

Substituting y = 30 into equation 1, it becomes

4x + 5 × 30 = 350

4x + 150 = 350

4x = 350 - 150

4x = 200

x = 200/4 = 50

3 0

3 years ago

Find the value of c that makes the expression a perfect square trinomial x^2+22x+c with work

Yuliya22 [10]

$\boxed{c=11}$

<h2>Explanation:</h2>

Here we have the following expression:

$x^2+22x+c$

A Perfect Square Trinomial is given by the form:

$(x+a)^2=x^2+2ax+a^2$

So matching terms, we can conclude that:

$2a=22 \\ \\ a=11 \\ \\ c=a^2=121$

So, substituting c into the expression:

$x^2+22x+121$

It is a perfect square because:

$x^2+22x+121=(x+11)^2$

<h2>Learn more:</h2>

Quadratic Equation in real life problems: brainly.com/question/10278062

#LearnWithBrainly

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2 years ago

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Hey, i need help for my assignment. ty

dem82 [27]

Hey there mate :)

These are the answers. Attached in uploaded two picture. Please check.

~ Benjemin360

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2 years ago