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3 years ago

What is the value of x

Mathematics

1 answer:

eduard3 years ago

7 0

The sum of the degrees for all triangles is 180, so just add the two you have and subtract from 180.

1. 58 + 47 = 105

180 - 105 = 75

Therefore x = 75

2. 91 + 26 = ?

180 - ? = ?

etc

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Simplify the expression<br> 8 + 4a + 6.2 - 9a

Marianna [84]

The simplified version of this equation is 14.2+-5a. Hope I helped

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4 years ago

Find parametric equations and symmetric equations for the line. (Use the parameter t.) The line through (3, 1, 0) and perpendicu

iren2701 [21]

Answer with Step-by-step explanation:

We are given that a point (3,1,0)

Two vectors are

A=<1,1,0>

B=<0,1,1>

$A\times B=\begin{vmatrix}i&j&k\\1&1&0\\0&1&1\end{vmatrix}$

$A\times B=i-j+k$

Let v $=A\times B=i-j+k$

$v==$

$r_0==$

$r=r_0+vt$

Substitute the values then we get

$r=+t$

$r=$

The parametric equation of the line

$x=x_0+at,y=y_0+bt,z=z_0+ct$

Using the formula

The parametric equation of the line which is passing through the point (3,1,0) and perpendicular to both i+j and j+k is given by

$x=3+t,y=1-t,z=t$

The symmetric equation of the line is given by

$\frac{x-x_0}{a}=\frac{y-y_0}{b}=\frac{z-z_0}{c}$

Using the formula

The symmetric equation of the line which is passing through the point (3,1,0) and perpendicular to both i+j and j+k is given by

$\frac{x-3}{1}=\frac{y-1}{-1}=z$

8 0

4 years ago

Question

kondor19780726 [428]

Answer: r = 11

Step-by-step explanation:

We know that the point (-2, r) lies on the graph of:

2*x + y = 7.

Then, if we that point is on the graph of the equation, we can replace the values and we will have:

2*(-2) + r = 7

and now we solve this for r-

-4 + r = 7

r = 7 + 4 = 11

r = 11

6 0

3 years ago

What is between 40 and 50?

RoseWind [281]

44 is between 40 and 50 hope this helps.

(-:

8 0

4 years ago

Read 2 more answers

10. A line passes through the points (-3,8) and

Vilka [71]

Answer:

a.-3

b. y=-3x-1

c. y=-3x-1

d. 3x+y=-1

Step-by-step explanation:

6 0

3 years ago