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3 years ago

Please help me with these questions, image attached.

Mathematics

1 answer:

Temka [501]3 years ago

4 0

Answer:

Step-by-step explanation:

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La expresion 18+2^3 / 4x2

erik [133]

18+8/4x2
18+8/8
18+1
PEMAS
parentheses,

7 0

3 years ago

Martine’s town is building a volleyball court based on a scale drawing that is 40cm to 80cm and uses the scale 1cm:22.5cm write

never [62]

Answer:

$y=22.5x$

Step-by-step explanation:

we have that

The scale drawing is

$\frac{1}{22.5}\frac{cm}{cm}$

we know that

Using proportion find out the actual dimensions of the volleyball court

Let

x -----> drawing court lengths in cm

y ----> court lengths in cm

For x=40 cm

$\frac{1}{22.5}\frac{cm}{cm}=\frac{40}{y}\frac{cm}{cm}\\\\y=40*22.5\\\\y=900\ cm$

For x=80 cm

$\frac{1}{22.5}\frac{cm}{cm}=\frac{80}{y}\frac{cm}{cm}\\\\y=80*22.5\\\\y=1,800\ cm$

Find the equation for the proportional relation ship between drawing court lengths x in centimeters and court lengths in y centimeters

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

For x=40 cm, y=900

substitute

$k=y/x$ -----> $k=900/40=22.5$

The equation is

$y=22.5x$

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3 years ago

What is the quotient of 3 and 18

frosja888 [35]

Your answer would be 6.

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3 years ago

Concentric circles are circles with the same center but different radii. Which equations represent concentric circles along with

Harrizon [31]

<span>(x – 8)² + (y – 9)² = 3
(x – 8)² + (y – 9)² = 14
</span>are the correct answers

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3 years ago

Read 2 more answers

The distance between points

nasty-shy [4]

Answer: B. False
Distance between points is square root of (x1 - x2) + (y1 - y2).

Hope it helped!

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3 years ago