3 years ago

What is the domain of the function represented by this graph?

Mathematics

1 answer:

BartSMP [9]3 years ago

6 0

Answer:

B no. is I guess because it is 2 by 2

x and y

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Luba_88 [7]

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3 years ago

Calculate the length of BE

lora16 [44]

Answer:

BE = 72 cm

Step-by-step explanation:

$\frac{AB}{BC} = \frac{BE}{CD}$ (BPT Theorem)

$\frac{20}{5} = \frac{BE}{18} \\$

⇒ 4 = $\frac{BE}{18}$

⇒BE = 18 × 4

∴ BE = 72 cm

Hope this helps...

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3 years ago

A product is now £50, the product was reduced by 20%, what was the original price

olga nikolaevna [1]

the original price is "x", or 100%.

but we know that if we reduce "x" by 20%, namely 100% - 20% = 80%, the 80% of "x" is really £50, what is "x" or the 100% anyway?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 50&80 \end{array}\implies \cfrac{x}{50}=\cfrac{100}{80}\implies \cfrac{x}{50}=\cfrac{5}{4}\implies 4x=250 \\\\\\ x=\cfrac{250}{4}\implies x=62.5$

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3 years ago

Write an equation in slope-intercept form of a line that contains points (2-4)<br> and (5,8)

Svetllana [295]

Answer:

y = 4x - 12

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

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3 years ago

Write to show how you make a ten.then add

storchak [24]

You can write it like this 5+5

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3 years ago