Answer:
49x^4-42x^2 y+9y^2
Step-by-step explanation:
The following table shows the total number of quizzes taken in high school. how many quizzes are taken per week?
Answer:
B
Step-by-step explanation:
There are no repeating values for x, for different values plugged in for y.
Answer:
-20f+32
Step-by-step explanation:
-5×4=-20 put the x back
4×8=32
see the attached figure to better understand the problem
we have that

Step 1
<u>Find the value of AC</u>
we know that
in the right triangle ABC

substitute the values in the formula

Step 2
<u>Find the value of BC</u>
we know that
in the right triangle ABC
Applying the Pythagorean Theorem

substitute the values

Step 3
<u>Find the value of BD</u>
we know that
in the right triangle BCD
Applying the Pythagorean Theorem

substitute the values


therefore
<u>the answer is</u>
the length of BD is 11.93 units