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3 years ago

Simplify the expression. 3.6 - 3.1n -2n + 5

Mathematics

2 answers:

Marina CMI [18]3 years ago

5 0

Answer:

-5.1n+8.6 plz give brainliest

Step-by-step explanation:

MrRa [10]3 years ago

5 0

-5.1n + 8.6 all you need to do is add like terms hope this helped pls give me branliest

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Please help me I’m super confused on this problem!

Lorico [155]

Answer:

m < amc = 54°

Step-by-step explanation:

< amb and < bmc are complementary angles whose sum equals 90°.

Therefore, to find the value of 2x°, we must first solve for x.

We can establish the following equality statement:

< amb + < bmc = < amc

< 2x° + (x + 9)° = 90°

Combine like terms:

2x° + x° + 9° = 90°

3x° + 9° = 90°

Subtract 9 from both sides:

3x° + 9° - 9° = 90° - 9°

3x = 81°

Divide both sides by 3 to solve for x:

3x/3 = 81°/3

x = 27°.

Since x = 27°, substitute its value into 2x° to find m < amc:

2x° = 2(27°) = 54°

Therefore, m < amc = 54°

Please mark my answers as the Brainliest, if you find this helpful :)

5 0

3 years ago

Combining like terms with negative coefficients<br><br> 8t+1+(−4t)+(−6)

allsm [11]

8t+-4t=4t
1+-6=-5

4t+-5

7 0

3 years ago

What is the measure of angle X enter your answer in the Box

Ulleksa [173]

x=43

you subtract 47-90. 90 because 47 is part of a right angel.

x is the same as the missing part of the right angle including 47

hopes this helps

6 0

3 years ago

Point p(a,b) is in the first quadrant on the graph of the line x+y=4. A triangular region is shown on the diagram. What is the m

Gala2k [10]

Answer:

The maximum area of the triangular region is 2 square units

Step-by-step explanation:

we know that

The area of the triangular region is equal to

$A=\frac{1}{2}(x)(y)$ -----> equation A

where

x is the x-coordinate of point P

y is the y-coordinate of point P

we have

The equation of the graph of the line is

$x+y=4$

$y=-x+4$ -----> equation B

substitute equation B in equation A

$A=\frac{1}{2}(x)(-x+4)$

$A=-\frac{1}{2}x^2+2x$

This is a vertical parabola open downward (the leading coefficient is negative)

The vertex represent a maximum

The y-coordinate of the vertex represent the maximum area of the triangular region

Find the vertex

Convert the quadratic equation in vertex form

Factor -1/2

$A=-\frac{1}{2}(x^2-4x)$

Complete the square

$A=-\frac{1}{2}(x^2-4x+4)+2$

Rewrite as perfect squares

$A=-\frac{1}{2}(x-2)^2+2$

The vertex is the point (2,2)

The maximum area is the y-coordinate of the vertex

The maximum area of the triangular region is 2 square units

Find the coordinates of point P for the maximum area

x=2 (x-coordinate of the vertex)

Find the y-coordinate of point P

substitute in equation B

y=-2+4=2

The coordinates of point P for the maximum area is P(2,2)

3 0

4 years ago

Assume that the cost to produce an item is a linear function and all items produced are sold. A lumber yard has fixed costs of $

V125BC [204]

Answer:

2028 ft

Step-by-step explanation:

Let the feets of boards sold to get profit be x hence with the price of $1.13 which is inclusive of profit, the total sales will be 1.13 x

The cost per day will equally be the sum of variable cost which considers the feets of boards and the daily fixed charge. Considering the variable of $0.03 and fixed charge of $2230.80 then the equation is represented as 0.03x+2230.80

Relating the two equations then

1.13x=0.03x+2230.80 and rearranging like terms

1.13x-0.03x=2230.80

1.1x=2230.8

X=2230.8/1.1=2,028 ft

Therefore, to maximize daily profit, 2028 ft must be sold

6 0

3 years ago