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alexandr402 [8]
2 years ago
15

The table shows the changes in the times (in seconds) of four teammates. What is the mean change? Write your answer as a decimal

. -2.43, -1.85, 0.61, -1.45
Mathematics
1 answer:
bekas [8.4K]2 years ago
8 0
I’m about to answer give me one sec
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A man buys a book for Rs 400 and sells it for Rs 420 his profit is​
motikmotik

Answer:

20

Step-by-step explanation:

420-400=20

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3 years ago
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5. h(x)=0.5x - 1 with domain (-♾, 4) what is the range
Rudiy27

We have a domain of a function, that is, which x-es can we throw in. But we are asking which y-s will we get given that we can only throw x-es in (-\infty,4).

Let's try x=4 even though we are forbidden to put 4 inside h we are still able to do so.

So h(4)=0.5\cdot4-1=2-1=1 what we just got is the upper limit of the range. The lower limit is h(-\infty)=-\infty.

So the range is just (-\infty, 1).

Hope this helps :)

6 0
3 years ago
O.45 is equals to what in a fraction
Deffense [45]
It’s equal to 45/100 which equals 9/20
3 0
3 years ago
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Coleman uses his graphing calculator to find all of the solutions to the equation shown below.
Phoenix [80]

Answer:

The correct option is;

D. x = -1.38 and 0.82

Please find attached the combined function chart

Step-by-step explanation:

The given equation is x³ + 3 = -x⁴ + 4

Plotting the equation using Excel, we have;

f(x) = x³ + 3, h(x) = -x⁴ + 4

x                                             f(x)                                       h(x)

-1.4                                         0.256                                   0.1584

-1.39                                       0.314381                              0.26699

-1.38                                       0.371928                             0.373261

-1.37                                       0.428647                             0.477246

-1.36                                       0.484544                             0.57898

Which shows an intersection at the point around -1.38

x                                          f(x)                                     h(x)

0.77                                    3.456533                         3.64847

0.78                                    3.474552                         3.629849

0.79                                    3.493039                          3.610499

0.8                                         3.512                                3.5904

0.81                                      3.531441                           3.569533

0.82                                       3.551368                          3.547878

0.83                                       3.571787                            3.525417

Which shows the intersection point around 0.82

Therefore, the correct option is x = -1.38 and 0.82

From the graphing calculator the intersection point is given as

x = -1.3802775691 and 0.81917251339.

8 0
2 years ago
2/5 divided by 3 1/10
fiasKO [112]
2/5÷31/10=2/5*10/31=4/31
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3 years ago
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