Answer:
x=7
Step-by-step explanation:
The two triangles are congruent so the equation is
9x-15=7x-1
9x-7x=15-1
2x=14
x=7
Answer:
= 4
Step-by-step explanation:
sqrt 15 = 3.872
to approximate to the nearest whole number (integer), you take the first decimal number which is 8, since 8 is greater than 5, you will add one(1) to the whole number which is 3 to make it 4.
A cube root doesn't have 2 answers because if you take that 1 answer of the cube root and cube it you will get the answer from the beginning. If there were 2 answers then it would be wrong.
Example:-
∛8 = 2
2 × 2 × 2 = 8
Hope I helped ya!!!