Answer:
see attached
Step-by-step explanation:
<h3>1.</h3>
Solid dots go at all the end points except the one at (3, 6), which gets an open dot signifying the function is not defined for that point.
For the first portion of the graph, the square root function is shifted left one unit and scaled vertically by a factor of 3.
The second portion of the graph is a line with a slope of -1. It would have a y-intercept of 5 if it were defined there. It has an x-intercept of 5.
<h3>2.</h3>
The y-intercept is found by setting x=0 and solving for y.
... y = log(2·0+1) -1 = log(1) -1 = 0 -1 = -1
The x-intercept is found by setting y=0 and solving for x.
... 0 = log(2x +1) -1
... 1 = log(2x +1) . . . add 1
... 10 = 2x +1 . . . . . . take the antilog
... x = (10 -1)/2 = 4.5 . . . . . subtract 1, divide by the x coefficient
The intercepts are (0, -1) and (4.5, 0).
Supplementary angles add up to 180 degrees.
x + 107 = 180
x + 107 - 107 = 180 - 107
x = 73
The correct answer is B. 73 degrees.
Hope this helps =)
Answer:
a) 840
Step-by-step explanation:
v=lwh
v=(7)(12)(10)
Answer: x =8
Step-by-step explanation:
-12 + 9x = 60 (the other angles are 60, 180 - (60 + 60) = 60)
9x = 72
x = 8
Answer:
y=28
Step-by-step explanation:
an isosceles triangle's base angles are congruent.
This means that both base angles will be 34 degrees.
to figure out the value of x, we have to say "what minus 5 equals 34?"It would be 39 because 39-5=34.
To find the value of y, we need to fugure out how many degree angle C is.
1) all triangles are 180 degrees. so, 34+34+angleC=180
2) 34+34=68
3)180-68=112
4) 4y=112
5) divide both sides by 4.
6) y=28 because 28·4=112