Raise 49<span> to the </span>power<span> of </span>2<span> to get </span><span>2401.
</span><span><span>7^3</span>x+4=2401x+1
</span>Raise 7<span> to the </span>power<span> of </span>3<span> to get </span><span>343.
</span><span>343x+4=2401x+1
</span>Since <span>2401x</span><span> contains the </span>variable<span> to solve for, move it to the left-hand side of the </span>equation<span> by subtracting </span><span>2401x</span><span> from both sides.
</span><span>343x+4−2401x=1
</span>Add <span>343x</span><span> and </span><span>−2401x</span><span> to get </span><span><span>−2058x</span>.
</span><span>−2058x+4=1
</span>Since 4<span> does not contain the </span>variable<span> to solve for, move it to the right-hand side of the </span>equation<span> by subtracting </span>4<span> from both sides.
</span><span>−2058x=−4+1
</span>Add <span>−4</span><span> and </span>1<span> to get </span><span><span>−3</span>.
</span><span>−2058x=−3
</span>Divide<span> each </span>term<span> in the </span>equation<span> by </span><span><span>−2058</span>.
</span><span>x=<span>1/686</span></span>
Answer:
11) 
12)
13a)
and 
13b)
Step-by-step explanation:
11. The given equation in rectangular coordinates is 
To convert to polar form, use the relation 
This implies that:



In polar coordinates,
is a circle with radius 4 units.
12. From the diagram;




We can see that two arrows are moving in anticlockwise direction to meet A which is moving in the clockwise direction;

13. The conjugate of the complex number:
is 
Part a) The given complex numbers are:
and 
The conjugates of these complex numbers are:
and 
Part b) The product of
and
is
The conjugate of the product is:
Multiple both numerator and denominator by √3.
So that would be 3√3 / 3 which can be reduced to √3.
Final answer: √3
10 - 5 = 5
Hope this helped your husband.
X=2.5 the triangles are 2x the scale of the other one so if you divide the numbers on the triangle by 2 then you will get the answer for x