please help me with these problems!!!

Answer:

r=-20

Step-by-step explanation:

if you need any other help lmk!

Answer:

Step-by-step explanation:

r=20

need any help just text me

Answer:

c

Step-by-step explanation:

you would put -142 in the x place

-0.2(-142+223)

-0.2(81)=-16.2

Answer: 7 feet

Step-by-step explanation:

1 foot = 12 inches

7 * 12 = 84

7 feet = 84 inches

84 inches are more than 81 inches

Answer:

7 feet is greater

Step-by-step explanation:

you can change feet to inches. one foot is the same as 12 inches. so 7 feet = 84 inches. so 84 > 81 so 7 feet is greater

Answer:

25

Step-by-step explanation:

Answer:

fifth option

Step-by-step explanation:

The terms of an arithmetic sequence are made by adding the same value, the common difference, each time

Answer:

4 * 14 = 56

Step-by-step explanation:

56/2 = 28

28/2 = 14

14/2 = 7

7/7 = 1

56 = 2 * 2 * 2 * 7

56 = (2 * 2) * (2 * 7)

56 = 4 * 14

Answer:

5

Step-by-step explanation:

looking at the congruency statement, we can tell A and D are equal

so we set up the equation that way: 10x=50

divide by 10 on both sides: x=5

Answer:

1/3 hope this helps!!!

Answer:  yours is correct

Step-by-step explanation:

Since P = -2 and D = 5,

P - D = -2 - 5 = -7

P + D = -2 + 5 = 3

D - P = 5 - -2 = 7

this makes P - D the smallest, and D - P the largest

We need to know about inequality to solve this problem. The solution of the inequality is x>-4/3.

Inequality represents the comparison between two unequal expressions. Two expressions can be related to each other as greater than, less than,greater than or equal to or less than or equal to. While solving inequality we always have to keep in mind the change of sign and corresponding change of the comparison. Here in the question we have an inequality of the variable x, we have to get a solution for x by solving this inequality.

6x+4>-3x-8

6x+3x>-8-4

9x>-12

x>-4/3

Therefore the solution set that we get from the inequality 6x+4>-3x-8 is x>-4/3.

Learn more about inequality here:

https://brainly.com/question/14361489

#SPJ9

Answer:

domain is x = 3

Thus domain means that for every fruit cup costs $3

Range is f(20) = 60

Step-by-step explanation:

We are given;

Total students for the fruit cup party = 18

Total teachers for the fruit cup party = 2

Cost of each fruit cup =$ 3

Delivery charge = $ 10

Now, the total number of people attending the party = Total number of students + Total number of teachers

Thus;

Total number of people attending party = 18 + 2 = 20

Since cost of each fruit cup is $3.

Thus, for 20 fruit cups, the function is;

f(x) = 20x where x is cost of each fruit cup.

It means the cost of 20 fruit cups = $3 × 20 = $60

Thus, domain is x = 3

Thus domain means that for every fruit cup costs $3

Range is f(20) = 60

Answer:

x= -9/2

Hope I helped

Answer:

[tex]x=-\frac{9}{2}[/tex]

Step-by-step explanation:

Simplify the given equation by solving for x. Isolate the x variable in:

[tex]-8(6x+12)=-32x-24[/tex]

Expand the left side by using the distributive property. Remember that when a negative and positive are multiplied, the result is always negative:

[tex]-8(6x)-8(12)=-32x-24\\\\-48x-96=-32x-24[/tex]

Use inverse operations to isolate the variable. Add 96 to both sides, canceling out the -96 on the left:

[tex]-48x-96+96=-32x-24+96\\\\-48x=-32x+72[/tex]

Add 32x to both sides to isolate x:

[tex]-48x+32x=-32x+32x+72\\\\-16x=72[/tex]

Now divide both sides by 16:

[tex]\frac{-16x}{16} =\frac{72}{16} \\\\-x=\frac{9}{2}[/tex]

Make the variable positive by multiplying both sides by -1:

[tex]-1(-x)=-1(\frac{9}{2})\\\\x=-\frac{9}{2}[/tex]

:Done

Note:

You do the same thing to both sides in order to keep the equation balanced. Using the opposite value of a term cancels it out, moving it to the other side.

Answer:

a. y = -3x+[tex]\frac{1}{2}[/tex]

b. y = -2

Step-by-step explanation:

The equation for a line is y=mx+b (m= the slope b= the y-intercept) Simply insert the variables into the equation.

Answer:

9) we get value of x: [tex]\mathbf{x=-4+\sqrt{42}\:i, x=-4-\sqrt{42}\:i}[/tex]

Option C is correct.

10) The difference is [tex]2k^3+3k-1[/tex]

Option A is correct.

Step-by-step explanation:

9) We need to solve:

[tex]x^2+8x+58=0[/tex]

Solving using quadratic formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]

We have a=1, b=8 and c=58

Putting values and finding value of x

[tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-8\pm\sqrt{(8)^2-4(1)(58)}}{2(1)}\\x=\frac{-8\pm\sqrt{64-232}}{2}\\x=\frac{-8\pm\sqrt{-168}}{2}\\We\:know\sqrt{-1}=i \\x=\frac{-8\pm2\sqrt{42}\:i}{2}\\x=\frac{2(-4\pm\sqrt{42}\:i)}{2}\\x=\frac{2(-4+\sqrt{42}\:i)}{2}, x=\frac{2(-4-\sqrt{42}\:i)}{2}\\x=-4+\sqrt{42}\:i, x=-4-\sqrt{42}\:i[/tex]

So, we get value of x: [tex]\mathbf{x=-4+\sqrt{42}\:i, x=-4-\sqrt{42}\:i}[/tex]

Option C is correct.

10) [tex](5-2k^3-5k)-(-4k^2+6-8k)[/tex]

Combining like terms and subtracting:

[tex](5-2k^3-5k)-(-4k^3+6-8k)\\=5-2k^3-5k+4k^3-6+8k\\=-2k^3+4k^3-5k+8k+5-6\\=2k^3+3k-1[/tex]

The difference is [tex]2k^3+3k-1[/tex]

Option A is correct.

Answer: 29.12 cups of coffee

Step-by-step explanation:

16 cups of coffee x 0.82 = 13.12

13.12 + 16 = 29.12

Answer:

4and 7over 27 is the answe

Answer:

[tex]\dfrac{\sqrt3}{4}[/tex]

Step-by-step explanation:

The given expression is :

[tex]x=\dfrac{3}{4\sqrt{3} }[/tex]

Multiplying both numerator and denominator by [tex]\sqrt{3}[/tex],

[tex]x=\dfrac{3}{4\sqrt{3} }\times \dfrac{\sqrt{3} }{\sqrt{3} }\\\\=\dfrac{3\sqrt3}{4\times 3}\\\\=\dfrac{\sqrt3}{4}[/tex]

So, the rationalized form of the given expression is [tex]\dfrac{\sqrt3}{4}[/tex]

Answer:

−4x+5−x−2= 28

Step-by-step explanation:

−4x+5−x−2 = 28

-5x+3=28

-5x=25

x= -5

Answer:

there is only 40

Step-by-step explanation:

Answer:

AG=13

AB=AC

AD is | to BC

CG=BG

line segments is BG or GB

Answer:

its c

Step-by-step explanation:

Our denominators are 40 and 4. What we need to do is find the lowest common denominator of the two numbers. This is the smallest number that can be divided by both 40 and 4. In this case, the lowest common denominator is 40.

If we multiply the first denominator (40) by 1 we will get 40. If we multiply the second denominator (4) by 10 we will also get 40. We also need to multiply the numerators above the line by the same amounts so that the fraction values are correct:

33 x 1

40 x 1

3 x 10

4 x 10

This is what 33/40 and 3/4 looks like with the same denominator:

33

40

&  

30

40

Now that these fractions have been converted to have the same denominator, we can clearly see by looking at the numerators that 33 is greater than 30 which also means that 33/40 is greater than 3/4.

Answer:

b

Step-by-step explanation:

Answer:

Step-by-step explanation:

Its number line 2.

Answer:

B. 4,1

Step-by-step explanation:

Answer:

B - E = B + E = -240

Step-by-step explanation:

Answer:

[tex]-2a+b[/tex]

Step-by-step explanation:

[tex]\left(11a-8b\right)-\left(13a-9b\right)\\11a-8b-\left(13a-9b\right)\\11a-8b-13a+9b\\11a-13a-8b+9b\\-2a-8b+9b\\-2a+b[/tex]

Answer:

Step-by-step explanation:

true

Answer:

7.6158 feet

Step-by-step explanation:

The rise and run form the shorter sides of a right triangle with the hypotenuse as the surface (see figure)

Hypotenuse (surface length) is given by the Pythagorean formula

[tex]c = \sqrt{a^2 + b^2}[/tex] where c is the hypotenuse and a, b the shorter sides

Here
[tex]\sf c = \sqrt{7^2 + 3^2} = \sqrt{49 + 9} = \sqrt{58} = 7.6158\;feet[/tex]