No image shown but just remember that percentage is out of 100
0.03 is 3%
Hey there!!
Basic formula :
... a² - b² = ( a + b ) ( a - b )
Equation given :
... 81x² - 25
... ( 9x )² - ( 5 )²
... ( 9x + 5 ) ( 9x - 5 )
Hope it helps!!
To find the area of a prism, you calculate the area of the cross-section and multiply that number by the length. The cross-section of this prism is a trapezium, and the formula for this is
.
Insert your given numbers to find out the area of this prism's cross-section:
Now, multiply 90 by the length, 10cm, to find out the volume of the prism;
90×10=900cm³
Therefore, your answer id the third option.
Answer:
answer is 6 btw does ~ means congruent
3.99 = > 3 + 0.99
first let's round up the 0.99, and the 9 rounds up to 1.0 so 0 + 1.0 = 1.
3 + 1 = 4, rounded up.
to the nearest tentth, 4.0.
the .0 simply means 0 tenths, since it's a whole 4.