So here we can find out that the two angles are vertical angles. That means that they have the same measure. So what we need to do is set them equal to each other:

2x+20=3x-30
x=50

7 0

3 years ago

Use ABC to find the value of cos a. 24/7 7/24 7/25 24/25

ExtremeBDS [4]

Answer:

$\frac{24}{25}$

Step-by-step explanation:

using the cosine ratio;

$\cos(\theta)= \frac{adjacent}{hypotenuse}$

From the question, the side of the right angle triangle that is adjacent to the measured <a,(i.e BAC) is AC=24 and the hypotenuse is AB=25

This implies that,

$cos(a)= \frac{24}{25}$

6 0

3 years ago

Al uses a box in the shape of a rectangular prism as shown in the diagram to for his coin collection.

lions [1.4K]

Answer:

4 x 8.5 x 12.5 =425 (multiple hight x width x length)

The volume of the box is $425in^{3}$

7 0

3 years ago