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4 years ago

9

Can someone please help me with this equation?

rmula1" title="-4x extgreater 16" alt="-4x extgreater 16" align="absmiddle" class="latex-formula">

1 answer:

Liono4ka [1.6K]4 years ago

5 0

-4x > 16

Divide -4 on both sides. Don't forget to flip sign since we are dividing by a negative number.

x < -4

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So turns out I’m not good at this math stuff. I someone help me with this monstrosity.?!

Fofino [41]

The answer is the last choice since in a function, x values in the coordinates cannot repeat themselves. In the first answer, the x-value 2 has more than one y-value meaning it cannot be a function. In the second answer, the x-value -2 also repeats itself and has more than one y-value, and in the 3rd choice, the x-value 5 also repeats.

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4 years ago

Money must serve as ___

Molodets [167]

Money must serve as a medium of exchange, a storehouse of value and a unit of account

Answer: Option B, D, and E

<u>Step-by-step explanation:</u>

Money, the term coined in terms of the following three services.

Medium of exchange played as important role to facilitate transactions. Think scenario like without money, then all operations would be exchanged as one product or service exchange for another (barter system).
To be in above, money must retain its value over time i.e store of value. Failure to save money for some time and still remain valuable in return would not resolve the double overlap of desires and therefore would not be accepted as a medium of exchange.
Money also acts as a units of account and is a regular measure of the cost of goods and service exchanged. Knowing the value of a good or the price in cash, both the supplier and buyer can decide how much to deliver and how much to buy.

6 0

3 years ago

Point that satisfies

Kobotan [32]

Answer: D. (4,4)

Step-by-step explanation:

1. You have the following expression:

$y\leq x^{2}-3x+2$

3. To find the point that satifies the expression shown above, you only need to substitute each one of them into the expression, as you can see below:

A. $3\leq 3^{2}-3(3)+2\\3\leq 2$ (This is not true)

B. $2\leq 2^{2}-3(2)+2\\2\leq 0$ (This is not true)

C. $1\leq 1^{2}-3(1)+2\\1\leq 0$ (This is not true)

D. $4\leq 4^{2}-3(4)+2\\4\leq 6$ (This is true)

4. Therefore, the correct answer is the option D, which is: (4,4)

6 0

3 years ago

Which equations represents a line that is parallel to 3x-4y=7 and passes through the point (-4,-2)

insens350 [35]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 3x - 4y = 7 into this form

Subtract 3x from both sides

- 4y = - 3x + 7 ( divide all terms by - 4 )

y = $\frac{3}{4}$ x - $\frac{7}{4}$ ← in slope- intercept form

with slope = $\frac{3}{4}$

• Parallel lines have equal slopes, hence

y = $\frac{3}{4}$ x + c ← is the partial equation of the parallel line

To find c substitute (- 4, - 2) into the partial equation

- 2 = - 3 + c ⇒ c = - 2 + 3 = 1

y = $\frac{3}{4}$ x + 1 ← in slope- intercept form

Multiply all terms by 4

4y = 3x + 4 ( subtract 4 from both sides )

4y - 4 = 3x ( subtract 4y from both sides )

- 4 = 3x - 4y, that is

3x - 4y = - 4 ← in standard form

6 0

4 years ago

The walls of a square room need painting. each of the four walls is 12ft wide by 8.5 feet tall. one gallon of paint covers 75fts

miv72 [106K]

The surface to be paint is 4 * 12*8.5= 408 ft squared

1 gallon.......75 ftsquared
x gallon.......408 ft squared
------------------------------------
x= 408/75= 5,44 gallons

7 0

3 years ago