Answer:
D
Step-by-step explanation:
This triangle has 2 equal sides. It also has 2 equal angles. They are marked
So the equation is 6x - 1 = 77 Add 1 to both sides
6x i- 1 + 1 = 77 + 1
6x = 78 Divide by 6
6x/6 = 78/6
x = 13
Answer:
3/10
Step-by-step explanation:
First, look at the sign. Since the signs are opposite it is negative.
So, 3/2 - 6/5.
Now find the LCM which is 10 and incorperate that into the fractions
So, 15/10 - 12/10 = 3/10
Answer:
4(90) + 4(2)
Step-by-step explanation:
The given expression is 4(92)
This can be expressed as ![\[4*92\]](https://tex.z-dn.net/?f=%5C%5B4%2A92%5C%5D)
This can also be expressed as ![\[4*(90+2)\]](https://tex.z-dn.net/?f=%5C%5B4%2A%2890%2B2%29%5C%5D)
Using the distributive law of multiplication and additon,
a*(b+c) = a*b + a*c
In this case a=4
b=90 and c = 2
So the equivalent expression is ![\[4*(90)+4*(2)\]](https://tex.z-dn.net/?f=%5C%5B4%2A%2890%29%2B4%2A%282%29%5C%5D)
But this is the same as option 2 in the list of given options.
Hence the equivalent expression is 4(90) + 4(2)
First you do x multiply 2x to get 2x^2
then you do x multiply-3 to get -3x
then 5 multiply 2x so you get 10x
then you do 5 multiply-3 to get -15
then you join it together to get
2x^2+10x-3x-15
then simply to get 2x^2+7x-15
and that should be your answer