Answer:
x=7
Step-by-step explanation:
The two lines indicate that it is an isosceles triangle. This means that the bottom two angles and lengths are the same.
To work this out you would first minus 104 from 180, this gives you 76. Then you would multiply 25 by 2, which gives you 50. This is because the angles are the same. Then you would add 50 to 76, which gives you 126. Then you would multiply 9 by 2, which gives you 18. This is because it is an isosceles triangle and the bottom two sides are the same. Then you would divide 126 by 18, which gives you 7.
1) Minus 104 from 180.
2) Multiply 25 by 2.
3) Add 50 to 76.
4) Multiply 9 by 2.
5) Divide 126 by 18.
6)
<u>Answer Checking:</u>
<u></u>
To check your answer you would work backwards. First you would multiply 7 by 18, which gives you 126. Then you would minus 50 from 126, which gives you 76. Then you would add 104 to 76, which gives you 180.
1) Multiply 7 by 18.
2) Minus 50 from 126.
3) Add 104 to 76.
<u>Because it is a triangle the internal angles all add up to 180. And so if your answer is 180 then the steps are correct.</u>
Answer:
Step-by-step explanation:
2a^-a-13=2
Subtract 2 from both sides :
2a^2-a-13=2=2-2
2a^2-a-15=0
Factor left side of the equation :
(2a+5) (a-3)=0
Set factors equal to 0 :
2a+5=0 or a-3=0
a=-5/2 or a=3
Step-by-step explanation:
HCF of 60 and 84 = 6
So the required greatest number that divides 60 and 84 without leaving remainder is 6.
3.65 e8
Step-by-step explanation:
The scientific notation e mean ‘10 raised to a particular power’. Therefore e8 is equivalent to 10 ^ 8.
We count the number of tens to the decimal point. In this case;
365000000
3.65000000
The decimal is <u>8</u><u> place values </u>from the right (since this is a whole number)
Answer:
x
=
4,-4
Step-by-step explanation: