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Rasek [7]
3 years ago
9

3.

Mathematics
1 answer:
Firdavs [7]3 years ago
8 0
Speed is distance/ time so....

1200/ 4 = 300

Average speed is 300km/h.

Hope this helps! Any questions let me know :)
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I need help please.
exis [7]
Pretty sure the answer is 20
Hope this helps :)
3 0
3 years ago
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PLSS HELP IF YOU TURLY KNOW THISS
vredina [299]

Answer:

3

Step-by-step explanation:

8x-4=20

8x-4=20

   +4.  +4

8x=24

8.    8

x=3

6 0
3 years ago
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What number line represents the solution set for the inequality 3x < –9?
umka21 [38]
3x<-9
3x/3<-9/3
x<-3  or (-∞,-3).

Answer: (-∞,-3).
4 0
3 years ago
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The graph shows the solution for which inequalities?
Helen [10]

Answer:

Inequalities are,

y ≥ 4x + 2

y ≥ 2

Step-by-step explanation:

Solid yellow line of the graph attached passes through two points (0, -2) and (1, 2).

Let the equation of this line is,

y = mx + b

Slope of the line = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

                      m = \frac{2+2}{1-0}

                      m = 4

Y-intercept 'b' = -2

Equation of the line will be,

y = 4x - 2

Since shaded area is on the left side of this solid line so the inequality representing this region will be,

y ≥ 4x - 2

Another line is a solid blue line parallel to the x-axis.

Shaded region (blue) above the line will be represented by,

y ≥ 2

Therefore, the common shaded area of these inequalities will be the solution of the given inequalities.

7 0
3 years ago
I’ve got this and one more
Nana76 [90]

Again, a^2+b^2=c^2

c=10

b=9

10 squared is 100

9 squared is 81

100-81=19

The square root of 19, rounded to the nearest hundredth, is 4.36

5 0
4 years ago
Read 2 more answers
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