''All prime numbers are odd."
That is incorrect because if we consider the smallest odd number, 2, is an even number. We can say that except 2, all prime numbers are odd.
14. section is wrong. For example, both numbers can be negative, so when we multiple these two, it will equals a positive value.
Remember:
x/y times z/t=(xz)/(yt) and
x/y+z/y=(x+z)/y
conver the bottom number to the same number as the 21/100 or convert 10 to 100
obviously multiply by 10
but msut multiply by 1 to keep same value
remember that 10/10=1 so
multiply 3/10 by 10/10
3/10 times 10/10=30/100
so add
30/100+21/100=(30+21)/100=51/100
Answer:
4 cm.
Step-by-step explanation:
The area of a circle can be calculated via the formula πr². Working backwards, we can divide by π and take the square root, to find that the radius of the circle is 4 cm.
Ok so the first thing to do would be get rid of the fraction. To do that multiply the ENTIRE equation but the denominator. Once all the numbers are multiplyed I think it’ll be easier for u to solve them :) or if u wanna solve them quick, download Photomath :)