Answer:
0.51 cm
Step-by-step explanation:
In right triangle MNP, MP = 4 cm, m∠N = 90°, m∠P = 21°
By the sine definition,
Now, consider right triangle HMN (it is right because NH is an altitude). By the cosine definition,
In the right triangle, two acute angles are always complementary, so
Thus,
Answer: C
Step-by-step explanation:
On the big triangle, the length from the origin to point A is three blocks. On the new triangle it is only one block. And it is getting smaller, so it is a fraction.
1/3 over the y axis.
In 180 degree rotation, magnitude remains same, and sign of the coordinate changes. So, the coordinates of Pre-image would be: Z (-9, -2)
In short, Your Answer would be: Option B
Hope this helps!
Answer:
Step-by-step explanation:
n=q-9
5n+25q=465, using n from above this becomes
5(q-9)+25q=465
5q-45+25q=465
30q-45=465
30q=510
q=17, and since n=q-9
n=17-9
n=8
So Melinda has 8 nickels and 17 quarters.