Suppose U=(-1,-2,-3,4,5,6,7,8) is the universal set and X=(-2,4,6,8) what is x?

Answers

Answer 1

Answer: Ir results that X is a subset of U.

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A 16- ounce bottle of fresh water is $1.76. A 20-ounce bottle of spring water is $2.40. Which statement about the unit price is true? A. Spring water has a lower unit price of $0.12/ounceB. Fresh water has a lower unit price of $0.11/ounceC. Fresh water has a lower unit price of $0.12/ounce D. Spring water has a lower unit price of $0.11/ounce

Which expressions are equivalent to 3x + 2(x − 1) − 4? A.) 3x + 2x - 2 - 4 B.) 5x - 6 C.) 3(x - 4) D.) 3(x + 2) - 6 E.) 6(x - 1)

Answers

Answer:

A and B.

Step-by-step explanation:

The original expression is 3x+2(x-1)-4, so let's simplify it to obtain an equivalent expression:

First we destroy the parenthesis applying distributive property:

3x+2x-2-4, so option A is correct.

Then, add the similar terms (3x can be added with 2x and -2 can be added with -4):

5x-6, so option B is also correct.

C is not correct because 3(x-4) = 3x-12 ≠ 5x-6.

D is not correct because 3(x + 2) - 6 = 3x+6-6 = 3x ≠ 5x-6.

E is not correct because 6(x - 1) = 6x-6 ≠ 5x-6.

Then, correct options are A and B.

Multiplication takes precedence
Execute the command multiplication bracket

3x + 2* (x - 1) - 4 =
3x + 2* x + 2* (-1 ) - 4 =
3x + 2x - 2 - 4 =

We reduce similar words

3x + 2x - 2 - 4 =
5x - 6

Answer B

What is the ordered pair solution for;
x + 2y = 5

3x - y = 1

Answers

$\left\{\begin{array}{ccc}x+2y=5\n3x-y=1&/\cdot2\end{array}\right\n+\left\{\begin{array}{ccc}x+2y=5\n6x-2y=2\end{array}\right\n-----------\n. \ \ \ \ \ \ \ 7x=7\ \ \ \ /:7\n.\ \ \ \ \ \ \ x=1\n\n\left\{\begin{array}{ccc}x=1\n3x-y=1\end{array}\right\n\left\{\begin{array}{ccc}x=1\n3\cdot1-y=1\end{array}\right\n\left\{\begin{array}{ccc}x=1\n3-y=1\end{array}\right\n\left\{\begin{array}{ccc}x=1\n-y=1-3\end{array}\n\left\{\begin{array}{ccc}x=1\n-y=-2\end{array}\right\n\right$
$\left\{\begin{array}{ccc}x=1\ny=2\end{array}\right\n$

Which expression is equivalent to 4 sqrt 24x^6y/128x^4y^5

Answers

The equivalent expression is: $\frac{\sqrt[4]{3x^2}}{2y}$

The expression is given as:

$\sqrt[4]{(24x^6y)/(128x^4y^5)}$

Simplify

$\sqrt[4]{(3x^6y)/(16x^4y^5)}$

Apply the law of indices

$\sqrt[4]{(3x^(6- 4))/(16y^(5 -1))}$

Simplify

$\sqrt[4]{(3x^2)/(16y^4)}}}$

Take the 4th root of 16y^4

$(1)/(2y) *\sqrt[4]{3x^2}$

Rewrite as:

$\frac{\sqrt[4]{3x^2}}{2y}$

Hence, the equivalent expression is: $\frac{\sqrt[4]{3x^2}}{2y}$

Read more about equivalent expressions at:

brainly.com/question/2972832

Given expression: $\sqrt[4]{(24x^6y)/(128x^4y^5) }$ .

$\mathrm{Cancel\:the\:common\:factor:}\:8$

$=(3x^6y)/(16x^4y^5)$

$\mathrm{Apply\:exponent\:rule}:\quad (x^a)/(x^b)\:=\:x^(a-b)$

$(x^6)/(x^4)=x^(6-4)=x^2$

$=(3x^2y)/(16y^5)$

$\mathrm{Cancel\:the\:common\:factor:}\:y$

$=(3x^2)/(16y^4)$

$=\sqrt[4]{(3x^2)/(16y^4)}$

$\mathrm{Apply\:radical\:rule\:}\sqrt[n]{(a)/(b)}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}$

$=\frac{\sqrt[4]{3x^2}}{\sqrt[4]{16y^4}}$

$=\frac{\sqrt[4]{3x^2}}{\sqrt[4]{16}\sqrt[4]{y^4}}$

$=\frac{\sqrt[4]{3}\sqrt[4]{x^2}}{\sqrt[4]{16}\sqrt[4]{y^4}}$

$=\frac{\sqrt[4]{3}\sqrt[4]{x^2}}{2\sqrt[4]{y^4}}$

$=\frac{\sqrt[4]{3x^2}}{2y}$ .

Therefore, correct option is 4th option $\frac{\sqrt[4]{3x^2}}{2y}$ .

25 POINTS AND BRAINLIESTSUPER EASY!

Which is the best scale to use when making a line graph for the data below?
Week

1

2

3

4

Profits (in dollars)

228

367

385

280

A) from 0 to 1000

B) from 200 to 1000

C) from 0 to 400

D) from 200 to 400

Answers

it's D from 200 to 400

The answer would be C because it is the most effective interval set.

–81, 108, –144, 192, ...Which formula can be used to describe the sequence?
A.f(x) = –81(4/3)^x-1
B. f(x) = –81(-3/4)^x-1
C. f(x) = –81(-4/3)^x-1
D. f(x) = –81(3/4)^x-1

Answers

r = 108/-81 = -144/108 =192/-144 = -4/3
This is a geometric sequence with a common ratio (r) = -4/3
The nth term of a geometric sequence is given by tn = ar^(n-1) where a is the 1st term.
Therefore, the formular for the sequence is f(x) = -81(-4/3)^(x-1)
Answer: C [f(x) = -81(-4/3)^(x-1)]

Answer: C. f(x) = -81(-4/3)^(x-1)

This is just the short answer for all of you that are working on edge.nuity and don't have the time or need for a long explanation. I just took the unit test and this was correct, I hope this helped someone out there :3

Rewrite 0.8 as a fraction in simplest form.

Answers

Answer: 8/10

Step-by-step explanation: Using the place value chart, we can see that 0.8 means eight-tenths which can be written as the fraction 8/10. Since 8/10 is not in lowest terms, we need to divide both the numerator and denominator by the greatest common factor of 8 and 10 which is 2 to get 4/5.

Therefore, 0.8 can be written as the fraction 8/10.

The decimal number 0.8 in the simplest fraction form will be 4/5.

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of a numerator and a denominator.

The decimal number is given below:

⇒ 0.8

Multiply and divide the expression by 10. Then we have

⇒ 0.8 x 10 / 10

⇒ 8 / 10

⇒ 4 / 5

More about the fraction number link is given below.

brainly.com/question/78672

#SPJ6

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