I need help again?????

Answer:

x = 40

Step-by-step explanation:

x + 100 +  x = 180 {Straight line angles}

2x   + 100 = 180      {subtract 100 from both sides}

         2x = 180 - 100

         2x = 80      {Divide both sides by 2)

           x = 80/2

          x = 40

Answer:

x=40

Step-by-step explanation:

2x+100=180

2x=180-100

2x=80

x=40

Answer:

the pythagoream theorem, a^2+b^2=c^2

1. 13in.

2. 31.6 yd.

3. 16.1 m.

Step-by-step explanation:

c is the hypotonus (the diagonal line on a right triangle)

if you are trying to find c, you square the two sides that are given and then add them up.

For example number 1:

So 5x5=25   and    12x12=144

add those two values together, 25+144=169

the last step is to find the square root of that last sum (169)

√169 = 13.

Answer:

45

Step-by-step explanation:

x+3x+90=180

4x=180

X=45

Answer:

you would take away the bottom

Step-by-step explanation:

Answer:dgrgfhtbsdvdsvs

Step-by-step explanation:dssfdfd

Answer:

x = 20

Step-by-step explanation:

perimeter = 2(width) + 2(length)

2(6x) + 2(3x) = 360

12x + 6x = 360

18x = 360

divide both sides by 18

x = 20

Answer:

[tex]x = - 13 \: \: and \: \: y = - 4[/tex]

Step-by-step explanation:

[tex]x = 4y + 3......(1) \\ 2x - 4y = - 10.....(2) \\ \\ \\ x - 4y = 3......(1) \\ 2x - 4y = - 10...(2) \\ - x = 13 \\ x = - 13 \\ from(1) \\ x - 4y = 3 \\ - 13 - 4y = 3 \\ - 4y = 16 \\ y = - 4 \\ [/tex]

Answer:

x=9

Step-by-step explanation:

2x + 10 =28 <---- subtract by 10

2x = 18          < divide by 2

x = 9

Answer:

Volume of cylinder V= bh= 78 cm^3, where b is area of base(circle). Then volume of cone = 1/3bh =1/3*78 = 26 cm^3

Answer:

26cm3

Step-by-step explanation:

Answer:

Explanation:

ʲ⁄₋₂ + 7 = -12

Subtract 7 From Both Sides

ʲ⁄₋₂ + 7 - 7 = -12 - 7

Simplify

ʲ⁄₋₂ = -19

Multiply Both Sides By -2

(-2) ʲ⁄₋₂ = -19 (-2)

Answer:

38

Step-by-step explanation:

Answer:

B 1/3 then reflection across y axis then move figure 2 units to down and 1 right.

Step-by-step explanation:

The figure ABC is bigger than FED so the scale factor is less than one since we are going to ABC to FED. Let look at corresponding sides, AB and FE. AB distance is 3. FE distance is 1 so let divide

[tex] \frac{fe}{ab} [/tex]

[tex] \frac{1}{3} [/tex]

The scale factor is 1/3.

The new points are at A'(-2,0) B'(-2,1) C'(-1,0).

Then we apply reflection.

Since FED is in the 4th quadrant, we are going to reflect across the y axis.

That becomes using formula

(x,y) goes to (-x,y) when reflecting across yaxis.

A''(2,0) B''(2,1) C''(1,0)

Now we will apply the translation. We can simply just move the figure 2 units down and 1 unit to the right.

Answer:

b

Step-by-step explanation:

Answer:

y=5x-2

Step-by-step explanation:

Answer: x  =  2 /3  ,  −  1

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

I think that’s the only thing that makes sense.

Answer:

12

Step-by-step explanation:

Hope this helps.

Answer:

EC = 8/9 ft

Step-by-step explanation:

ΔADE ≈ ΔABC

set up a proportion based on corresponding sides

AD/AE = AB/AC

9/4 = 11/(4 + EC)

9(4 + EC) = 44

36 + 9EC = 44

9EC = 8

EC = 8/9

Answer:

(15x+2y)

Step-by-step explanation:

not entirely sure but i hope this helps :) have a nice day !!

The values of x and y in the following equation system are 20 and 110, respectively.

simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.

There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.

given a system of equation:

30x + 4y = 1,040.....(1)

12x + 16y = 2,000...…(2)

We will solve it by using substitution method,

Multiply with 2.5 in equation (2) and subtract it from equation (1)

30x + 4y - 30x - 40y = 1040 - 5000

36y = 3960

y = 110

Substitute this value of y in equation (1)

30x + 440 = 1040

30x = 600

x = 20

Therefore, The value of x and y are 20 and 110 respectively for the given system of equation.

Learn more about System of equation here:

https://brainly.com/question/12628931

#SPJ2

Answer:

2x^2 - 8x + 6

Step-by-step explanation:

2x*x+(-3x*2x)+(x*(-2))+6=

2x^2-8x+6

Answer:

H

Step-by-step explanation:

Answer:

a. 9in

Step-by-step explanation:

PLS MARK ME BRAINLIEST!!!!!!!

Answer:

(-2,-1)

Step-by-step explanation:

Since this is a reflection over the y-axis you'll keep the x-coordinate Making it (-2,?) and then since 3 is two away from y=1 on the plane you'd just count downwards two more giving you -1, so the answer is (-2,-1)

Answer:

a

Step-by-step explanation:

a

Answer:

Below in bold.

Step-by-step explanation:

Area = altitude * base

3.   6.2 * 6

=  37.2 cm^2.

4.  0.12 * 0.24

= 0.0288 m^2.

5. 32 * 0.4

= 12.8 m^2.

Answer:

simplified equation is -4+x

x=4

Step-by-step explanation:

-4+x=0

+4

x=4

Answer:

x-4

Step-by-step explanation:

1. Rearrange terms : −(4−x)  −(−+4)  Then Distribute the negative: −(−+4)   1−4

Multiply by 1: 1−4   so x-4  

Hope this helps !

Answer:

The answer is 24501.42

Step-by-step explanation:

Diameter=34m

Radius=34÷2 = 17m

Height=27m

Volume=πr^2h

Volume= 3.14×(17)^2×27

Volume= 3.14×289×27

Volume= 24501.42m^2

Answer: 4 bags

Step-by-step explanation: Good luck! :D

Answer:

the answer is 4 i think d ont know

Step-by-step explanation:

Answer:

The median of the group that did not study is less than 80

Step-by-step explanation:

The median of the group that did not study is 79.5