MATHEMATICS HIGH SCHOOL

Need help.
I 2x +1 I < -4

Answers

Answer 1
Answer:


the absolute value of a number is always positive. Therefore you cannot have an absolute value equal to a negative number.

the answer would be "no solution"
Answer 2
Answer: | 2x +1 | < -4\n x\in\emptyset

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The elevation we call sea level is actually the average level of the sea. This means that at average sea level, the elevation is zero. In reality, the level of the sea rises and falls in what are called tides. Low tide is the point of lowest sea level in a tidal period. High tide is the point of highest sea level in a tidal period. The height above or below average sea level is called elevation. An elevation below sea level is considered a negative value, while an elevation above sea level is positive.Winston lives near the ocean. He regularly brings an altimeter to the beach to measure the elevation of the ocean’s surface. You will use the data Winston gathered to complete tasks about the rising and falling of the ocean’s surface. When necessary, sketch a diagram of the situation on a separate sheet of paper to assist you.On Monday at 1pm, when the ocean’s surface was at an elevation of 2.2 feet, Winston went to a surf shop that was 8.2 feet above the ocean’s surface. At 7 p.m. when the ocean’s surface was at an elevation of -2.4 feet, Winston ate dinner at a restaurant whose deck was 10 feet above the ocean’s surface.What was the net change in the elevation of the ocean’s surface from 1 p.m. to 7 p.m.?
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In order to join an online learning community, there is there is a $20 startup fee and $5 monthly fee. Write an equation in slope-intercept form that model this situation

Answers

Answer:

y = 5x + 20

Step-by-step explanation:

Answer:

Y=5x+20

Because 20 is a fee that is in constant value and shouldn't be correlated with the amount of months using the subscription. 5 is the amount charged every month you keep the subscription. Y is outcome of cost, and x is the amount of months.

Help now solve it but show your work too

Answers

Answer:

-1/6

Step-by-step explanation:

1/6-1/3

1/6-1×2/3×2

1/6-2/6

1-2/6

-1/6

Answer:

-1/6

Step-by-step explanation:

Written vertically:

 1/6

- 1/3

--------

The LCD here is 6, so that -1/3 becomes -2/6, and we have:

 1/6

- 2/6

--------

 -1/6 (answer)

The equation of line c is y=-4/3-4 Line d includes the point (4,-4) and is perpendicular to line c . what is the equation of line d?

Answers

Assuming that you mean that the equation of line c is

y=-(4)/(3)x-4

We can deduce that the slope of line c is

m_c=-(4)/(3)

since the slope is the coefficient multiplying x in the equation of a line. Since we want line d to be perpendicular to line c, their slope must be in the following relationship:

m_cm_d=-1 \iff m_d=-(1)/(m_c)=-(1)/(-(4)/(3))=(3)/(4)

So, line d has slope 3/4 and passes through point (4,-4). Use the equation

y-y_0=m_d(x-x_0)

to find the equation of line d, where

x_0=4,\quad y_0=-4,\quad m_d=(3)/(4)

Which unit would you use to measure the amount of water in a bathtub?mL
kg
L
fl. oz.

Answers

liters the rest are to small and kg is for solids

Please, help me! A farm producing x tons of rice at a cost represented by C = 3x +3. If the total revenue from rice production is given by R = 7x + 2, to not have prejudice, the farm must produce at least:

Answers

Profit = Revenue – Cost

To reach a point of breakeven, Profit = 0.

 

Therefore,

Revenue =  Cost

7x + 2 = 3x + 3

x = ¼

therefore the farm must produce at least ¼ tons of rice so that there will be no loss.

 

Use percent proportion 50 is 25%

Answers

Answer:

By using the formula, Parts /whole = percent/100, ⇒ 25/ 50 × 100 = 50%. So, 50 % of 50 is 25 proportion.
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