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denis-greek [22]
3 years ago
7

What is the answer to this question please?

Mathematics
2 answers:
ddd [48]3 years ago
6 0

Answer:

53 + 1 = 54

give me brainllest if this is right okay?

dem82 [27]3 years ago
5 0
28 + 24 = 4 ( 7 + 6 )
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2 years ago
Peter drives his van a distance of 54 km. He leaves the depot at 10:55 and arrives back at 12:38. Calculate his average speed
OLga [1]

Answer:

31.46 km/hr to the nearest 100th

Step-by-step explanation:

10:55 to 11:00 is 5 min

11:00 to 12:00 is 60 min

12:00 to 12:38 is 38 min

That's 5 + 60 + 38 = 103 min = 103/60 hr. = t

d = rt

54 = 103/60(r)

r = 54(60)/103 =31.46 km/hr to the nearest 100th

5 0
3 years ago
What is the length of side BC of the triangle? Make sure to show all of your work!
Mrrafil [7]
Isosceles triangle
so
x + 8 = 2x -1
x = 9

BC = 3x - 3
BC = 3(9) - 3
BC = 27 - 3
BC = 24
5 0
3 years ago
Find the length of side a. <br><br> A. 4 <br><br> B. 2<br><br> C. 34<br><br> D. 16
Dmitriy789 [7]

Answer:

Side A is 4

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Over which interval is the graph of f(x) = one-halfx2 + 5x + 6 increasing?
kaheart [24]

Answer:

\large\boxed{x\in[-5,\ \infty)}

Step-by-step explanation:

f(x)=\dfrac{1}{2}x^2+5x+6\\\\\text{The coeficient of}\ x^2\ \text{is the positive number. Therefore the parabola is op}\text{en up}.\\\\\text{If a parabola op}\text{en up, then the graph increasing in interval}\ (h,\ \infty),\\\text{and decreasing in interval}\ (-\infty,\ h).\ \text{Where}\ h\ \text{is a first coordinate of a vertex.}\\\\\text{For}\ y=ax^2+bx+c,\ h=\dfrac{-b}{2a}.\\\\\text{We have}\ a=\dfrac{1}{2}\ \text{and}\ b=5.\ \text{Substitute:}\\\\h=\dfrac{-5}{2\left(\frac{1}{2}\right)}=-\cdot\dfrac{5}{1}=-5.

8 0
3 years ago
Read 2 more answers
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