Answer:
x=9 and angle B=40
Step-by-step explanation:
5x-5=3x+13
Subtract -3 on both sides of x
5x(-3)-5=3x(-3)=+13
2x-5=13
Add 5 to both sides
2x-5(+5)=13(+5)
2x=18
Divide by 2
x=9
Now that you know x=9, plug it into 3x+13
So, 3(9)+13= 27+13= 40
so ya thats my answer hopefully it helps
(btw both angle A and B are the same so thats why u put them equal)
5/5i*-5i/-5i=-25i/-(5i)^2=-25i/25=-i
5x - 9 = -30
"Nine less than" means - 9
"Five times a number" means 5*unknown number = 5x
Answer:
a) 84π b) 109.2π
Step-by-step explanation:
The formula to find this is v=πr^2h/3
r=d/2. so the radius (r) is 6 because you have to divide the diameter (12) by 2. and the height is 7. so, 6^2=36 and 36x7=252.
252/3=84
and because the question is asking for the EXACT value, you need to just put the pi symbol next to it. Final answer for a is 84π
B) you need to find 30% of 84, which is 25.2 and add it to 84, and you will get 109.2! Final answer is 109.2π.
Answer:
I won't tell you the answer but ill tell you how to do it.
Step-by-step explanation:
First, you have to cut the shape, so make one triangle and one square. Then, subtract the ten to the 14 to get 4 so you know how wide the triangle is. Next you work on only the square...for now. You multiply W*H (width times height) then you get a number(10*9). Next you move on to the triangle, You multiply 4 (the number you got by subtracting 10 from 14) by 3 b*h (base times height). When ever dealing with a triangle always divide your answer by two. Once you have the area of the square and the triangle you add both of those together to get your final answer.
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