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3 years ago

Pls help asap i need help plz

Mathematics

2 answers:

Ulleksa [173]3 years ago

5 0

It is False , that’s ur answerrr

shepuryov [24]3 years ago

3 0

Answer:

False, It was till Pack 5 it was going up 3 every pack but at 5 it went up 13 cookies.

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Which of the following graphs shows a pair of lines that represent the equations with a solution (−2, 5)?

const2013 [10]

Answer:

The first one (top)

Step-by-step explanation:

The coordinate plane works with coordinates being x, y, and so if x is -2, then it would be to the left of 0. 5 is above 0, and you see the 2 lines intersecting at that point.

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3 years ago

What is the speed of a walker who travels 500m in 192s?

AveGali [126]

Answer:

2.6m/s

Step-by-step explanation:

$s = d \div t \\ \: = 500 \div192 \\ = 2.6ms \\$

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3 years ago

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The figures are similar. Find x.

xz_007 [3.2K]

15/x = 9/4

9x = 60

<em>x = 60/9 = 20/3 = 6.6666</em>

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4 years ago

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KengaRu [80]

Answer:

1.Radious and diameter of a circle

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3 years ago

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Perform the indicated operation

mylen [45]

Answer:

$\displaystyle \left( g\circ f\right)\left(\frac{t}{4}\right) = -\frac{1}{8}t^2 - 2t - 13$

Step-by-step explanation:

We are given the two functions:

$\displaystyle g(t) = -2t^2 -5 \text{ and } f(t) = t + 2$

And we want to find:

$\displaystyle ( g \circ f)\left(\frac{t}{4}\right)$

Recall that this is equivalent to:

$\displaystyle = g\left(f\left(\frac{t}{4}\right)\right)$

Find f(<em>t </em>/ 4):

$\displaystyle \begin{aligned} f\left(\frac{t}{4}\right) &= \left(\frac{t}{4}\right) + 2 \\ \\ &= \frac{t}{4} + 2\end{aligned}$

By substitution:

$\displaystyle g\left(f\left(\frac{t}{4}\right)\right)= g\left(\frac{t}{4} +2\right)$

Find the above function:

$\displaystyle \begin{aligned} g\left(\frac{t}{4} + 2\right) &= -2\left(\frac{t}{4} + 2\right)^2 - 5 \\ \\ &= -2\left(\frac{t^2}{16} +t + 4\right) - 5 \\ \\ &= -\frac{t^2}{8} -2t -8 -5 \\ \\ &= -\frac{1}{8}t^2 - 2t - 13 \end{aligned}$

In conclusion:

$\displaystyle \left( g\circ f\right)\left(\frac{t}{4}\right) = -\frac{1}{8}t^2 - 2t - 13$

3 0

3 years ago