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3 years ago

What would x be in this parallelogram ?

Mathematics

1 answer:

irina [24]3 years ago

8 0

Answer:

Step-by-step explanation:

The diagonals of a parallelogram <em>bisect</em> each other, which is to say they split each other in half, and since each half length is equal to the other, we can say that

3x + 3 = 6x - 57

Which, after some algebraic manipulation, gives us the solution

x = 18.

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12. What is the equation of a line perpendicular to the x-axis that passes through the point (-2,-4)? What is the slope of

lana66690 [7]

Answer: the vertical line with the equation "x=-2"

Step-by-step explanation:

if you are perpendicular to the x axis, you will be looking for vertical lines that pass through (-2,-4)

the vertical line with the equation "x=-2" will pass though the point because (-2,-4) has an x coordinate of -2

7 0

4 years ago

If sin theta = 2/3 and tan theta <0 what is the value of cos theta?

Mrac [35]

Answer:

d) $\cos(\theta)=-\frac{\sqrt{5}}{3}$

Step-by-step explanation:

If $\sin(\theta)=\frac{2}{3}$ and $\tan(\theta)\:$ , then

$\theta$ is in quadrant 2.

Recall that;

$\sin^2(\theta)+\cos^2(\theta)=1$

We substitute the given sine ratio to obtain;

$(\frac{2}{3})^2+\cos^2(\theta)=1$

$\frac{4}{9}+\cos^2(\theta)=1$

$\cos^2(\theta)=1-\frac{4}{9}$

$\cos^2(\theta)=\frac{5}{9}$

$\cos(\theta)=\pm \sqrt{\frac{5}{9}}$

$\cos(\theta)=\pm \frac{\sqrt{5}}{3}$

We are in the second quadrant, therefore

$\cos(\theta)=-\frac{\sqrt{5}}{3}$

8 0

4 years ago

Is<br>Five times what number plus 10 equals 20<br>

Natalka [10]

Answer:

Step-by-step explanation:

5*2=10

10+10=20

5*x+10=20

10-10=0

20-10=10

5*x=10

5/5=0

10/5=2

x=2

3 0

4 years ago

Read 2 more answers

Tell me what each angle is in the following triangle: angle 1 is 8x, angle 2 is 2x+3, angle 3: 30 degrees. give me the two answe

mr Goodwill [35]

8 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

6 0

4 years ago

For the function f(x) = x + 4, what is the ordered pair for the point on the graph where x = 3p?

anygoal [31]

Answer:

D. (3p, 3p + 4)

Step-by-step explanation:

3 0

3 years ago