Answer:
76
Step-by-step explanation:
The sum of the angles of a triangle add to 180
40+ 3x+10 + 2x+20 = 180
Combine like terms
70 + 5x = 180
Subtract 70
70+5x-70 =180-70
5x = 110
Divide by 5
5x/5 = 110/5
x = 22
We want to find BCA
BCA = 3x+10
= 3(22)+10
= 66+10
=76
170 - 7m > 99
170 > 7m + 99
71 > 7m
71/7 > m
10 1/7 > m
The intercepts are where the line crosses the x and y axises
the x intercept is where the line crosses the x axis or where y=0
the y intercept is where the line crosses the y axis or where x=0
so find them by setting other to zero
xint, y=0
6x-0=-24
6x=-24
divide 6
x=-4
xint is x=-4
yint, x=0
0-2y=-24
-2y=-24
divide -2
y=12
yint is y=12
xint: x=-4
yint: y=12
given options A.x=4, y=-12 B.x=-12, y=4 C.x=-4, y=12 D. x=12, y=4
the answer is C
Answer:
18
Step-by-step explanation:
x-5=(x+8)/2
x-5=x/2+4
add 5
x=x/2+9
subtract x/2
x/2=9
times 2
x=18
Answer:
mean = To find it, add together all of your values and divide by the number of addends
mode = number that appears most often is the mode.
median = The median is also the number that is halfway into the set. To find the median, the data should be arranged in order from least to greatest.
range = difference between the largest and smallest values