Show work when multiplying 3.9×5.3
2 answers:
I use the expansion distributive thing remember a(b+c)=ab+ac 3.9=4-0.1 3.9 times 5.3= (4-0.1) times 5.3= 5.3(4-0.1)= 5.3(4)+5.3(-0.1)= (5+0.3)4+5.3(-0.1)= 20+1.2-0.52= 20+0.68= 20.68 taht's one way
3.9 x 5.3 = 20.67 im not really sure how i would show my work while typing, but if you really need to see it i could insert a picture, let me know.
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an = a1 +d(n-1)
a4 =a1+d(4-1)
-4 = -1+d(3)
add 1 to each side
-3 = 3d
d= -1
an = a1 +d(n-1)
an = -1 +-1 (n-1)
an = -1 -n +1
an = -n
Choice D
Answer:
y=1/3x_1/5=1/3×15=5_1/5×15=3. 5_3=2
Answer:
x = 84°
Step-by-step explanation:
180 - 143 = 37
37 + 59 = 96
180 - 96 = 84°
That’s the equation for pi, but the simplified fraction is 22/3 (please mark brainliest)