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MrRissso [65]
2 years ago
12

10x is greater than or equal to 120 cm^2

Mathematics
1 answer:
Agata [3.3K]2 years ago
8 0

Answer:

x greater than or equal to 12cm^2

Step-by-step explanation:

You might be interested in
a group of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of
alexandr1967 [171]
5 people x $5 appetizers = $25
5 people x $10 main dish = $50
Total cost for the group of 5 = $75

$75 - 20% (.2) = $15 each person has to pay

Check ur work
$15 x 5 = $75



3 0
3 years ago
13) John and James live 0.7km apart. If John takes 25cm steps, then how many steps would it take
aleksandrvk [35]

It will take John 2800 steps to walk from his house to James' house

Step-by-step explanation:

First of all we have to convert all the measurements in same unit.

Distance = 0.7 km

As 1 km = 1000 m

0.7*100 = 700m

And

1 m = 100 cm

700*100 = 70000cm

Now,

25 cm = 1 step

So,\\70000cm = \frac{70000}{25}\\=2800\ steps

It will take John 2800 steps to walk from his house to James' house

Keywords: Conversions, Lengths

Learn more about conversions at:

  • brainly.com/question/1859222
  • brainly.com/question/1993757

#LearnwithBrainly

7 0
3 years ago
Hi need help for this maths question
Sauron [17]

a) If f(y) is a probability density function, then both f(y) ≥ 0 for all y in its support, and the integral of f(y) over its entire support should be 1. eˣ > 0 for all real x, so the first condition is met. We have

\displaystyle \int_{-\infty}^\infty f(y) \, dy = \frac14 \int_0^\infty e^{-\frac y4} \, dy = -\left(\lim_{y\to\infty}e^{-\frac y4} - e^0\right) = \boxed{1}

so both conditions are met and f(y) is indeed a PDF.

b) The probability P(Y > 4) is given by the integral,

\displaystyle \int_{-\infty}^4 f(y) \, dy = \frac14 \int_0^4 e^{-\frac y4} \, dy = -\left(e^{-1} - e^0\right) = \frac{e - 1}{e} \approx \boxed{0.632}

c) The mean is given by the integral,

\displaystyle \int_{-\infty}^\infty y f(y) \, dy = \frac14 \int_0^\infty y e^{-\frac y4} \, dy

Integrate by parts, with

u = y \implies du = dy

dv = e^{-\frac y4} \, dy \implies v = -4 e^{-\frac y4}

Then

\displaystyle \int_{-\infty}^\infty y f(y) \, dy = \frac14 \left(\left(\lim_{y\to\infty}\left(-4y e^{-\frac y4}\right) - \left(-4\cdot0\cdot e^0\right)\right) + 4 \int_0^\infty e^{-\frac y4} \, dy\right)

\displaystyle \cdots = \int_0^\infty e^{-\frac y4} \, dy

\displaystyle \cdots = -4 \left(\lim_{y\to\infty} e^{-\frac y4} - e^0\right) = \boxed{4}

8 0
2 years ago
Graph each equation
Gala2k [10]

Answer:

Step-by-step explanation:

Your solution is in the picture format

The question number from the top is 6 then 5 , 4 , 3 ,2 and at last one is 1 so don't be confused

Download pdf
7 0
3 years ago
Assad has $256 in his checking account. Which of the following will result in no net-change in
gregori [183]

D

Step-by-step explanation:

he took 32 out then put it right back in

6 0
2 years ago
Read 2 more answers
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