Answer:
The equivalent expression is 3x^5-9x^3-2
Step-by-step explanation:
To find the equivalent expression, we need to
open up the brackets;
Thus;
x^2(3x^3 -2x) - (7x^3 + 2)
= 3x^5 -2x^3 -7x^3 -2
= 3x^5 -9x^3-2
Answer:
2352 hours
Step-by-step explanation:
280 divided by 5 = 56 (so 56 miles per hour)
420 x 56 = 2352 hours
Answer:

Step-by-step explanation:
<u><em>The correct question is</em></u>
Angle a and angle b are vertical angles
Angle a =8x+6
Angle b= 4x+38
Solve for x and find the measure of angle b
we know that
<u><em>Vertical Angles</em></u> are the angles opposite each other when two lines cross. They are always congruent.
m∠a=m∠b -----> by vertical angles
substitute the given values

solve for x



<em>Find the measure of angle b</em>

substitute the value of x


Answer:
y=3x
Step-by-step explanation:
Answer:
21÷-3=-7
I dont know what all those extra boxes are for but I hope I helped a little