Answer:
1st, 3rd, 4th
Step-by-step explanation:
1st one: 43 x
multiply x by 43
7 x 43 = 301
7 x 43 = 258
10 x 43 = 430
3 x 43 = 129
4 x 43 = 172
(correct)
2nd one: 12x
multiply x by 12
2 x 12= 32
we know that 2 x 12 is 2 so this equation does not work
(incorrect)
3rd one: 202x
multiply x by 202
6 x 202 = 1212
4 x 202 = 808
10 x 202 = 2020
3 x 202 = 606
8 x 202 = 1616
(correct)
4th one: 13x
multiply x by 3
9 x 13 = 117
2 x 13 = 26
7 x 13 = 91
3 x 13 = 36
10 x 13 = 130
(correct)
Answer:
1/2
Step-by-step explanation:
Paso Uno: * 1/10= 5/10
Paso Dos: Simplificar:
5/5=1
10/5=2
Paso Tres: fracción es 1/2
Answer:
153.94 inches cubed
Step-by-step explanation:
plug in 7 as the radius
the formula is A = πr^2
Small triangle needs to equal 180degrees.
so
180 = 63 + 36 + x
180 = 99 + x
subtract 99 from both sides to isolate x
81 = x
Now, x and z are supplementary angles.
Meaning that they add up to 180degrees
x + z = 180
81 + z = 180
subtract 81 from both sides to isolate z
z = 99
Now we can see there is a triangle formed with the top angle 13 degrees and z and y
they must all add up to 180.
180 = 13 + z + y
we know z = 99
180 = 13 + 99 + y
180 = 112 + y
68 = y
Hope this helps!