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3 years ago

Can you help with this problem!!

Mathematics

1 answer:

saveliy_v [14]3 years ago

4 0

Answer:

Step-by-step explanation:

B,C,D are correct.

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What is the sum of the measures of the exterior angles of the polygon shown below if necessary round to the nearest 10th

Reil [10]

Answer:

Step-by-step explanation:

Number of sides = 15 (counted and it was a pain the a*s)

The total measure of the exterior angle = 360

= 360/15

= 24 degree

Each angle is measured 24 degree

6 0

3 years ago

Read 2 more answers

The general equation of the plane that contains the points (1, 0, 2), (−1, 1, −2), and the origin is of the form ax + by + cz =

ICE Princess25 [194]

Answer:

2x-z=0 is the equation of the plane.

Step-by-step explanation:

Given that the plane passes through the points (1,0,2) and (-1,1,-2)

and also origin.

Hence equation of the plane passing through three points we can use

Any plane passing through 3 given points is given as

$\left[\begin{array}{ccc}x-x_1&y-y_1&z-z_1\\x_2-x_1&y_2-y_1&z_2-z_1\\x_3-x_1&y_3-y_1&z_3-z_1\end{array}\right] =0$

Substitute the three points to get

$\left[\begin{array}{ccc}x-1&y&z-2\\-1-1&1&-2-2\\0-1&0&0-2\end{array}\right] \\=0\\(x-1)(-2) -y(4-4)+(z-2)(1) =0\\-2x+z=0\\2x-z-=0$

2x-z=0 is the equation of the plane.

4 0

4 years ago

796 sixth- eighth graders at CMS passed all classes for Q1 and get to be in Study Hall. If 80% of the CMS students are in Study

Hatshy [7]

I’ve found out that 80% of 796 is 636.8 and 20% of 796 is 159.2. i don’t know what else to do i’m sorry.

3 0

3 years ago

If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?

Fittoniya [83]

Step 1: Find the value of one variable in terms of the other.

$a+3b=7\\a=7-3b$

Step 2: Substitute the value you just found for this variable in the other equation.

$3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}$

Step 3: Use your new value for the second variable to find the first.

$a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}$

Now that we know the values for a and b we can find the value of 4a+b.

$4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}$

6 0

4 years ago

Slope line G(-3,1)H(-2,-2)

Anton [14]

The slope from point G to point H is -3/1 or -3
$m = \frac{y2 - y1}{x2 - x1}$
Plug into points into formula with the corresponding x and y variables.
(x1,y1), (x2,y2)
$m = \frac{ - 2 - 1}{ - 2 - ( - 3)}$
Solve
m=-3/1
m=3

8 0

3 years ago