The figure is a parallelogram. One diagonal measures 28 units. A parallelogram is shown. It has side lengths 21, 20, 21, and 20. The length of a diagonal is 28.

Is the figure a rectangle? Explain.

No, it is not a rectangle because the diagonals are congruent.
No, it is not a rectangle because the sides of the parallelogram do not meet at right angles.
Yes, it is a rectangle because the diagonals are congruent.
Yes, it is a rectangle because the sides of the parallelogram do meet at right angles.

45

step-by-step explanation:

answer: the common difference is -0.10

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: