3 years ago

Help, is this correct?

Mathematics

1 answer:

Ronch [10]3 years ago

4 0

Answer:

Yes good job!

Step-by-step explanation:

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Name the marked angle in 2 different ways

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The letter of the angle always goes in the middle.

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Brianna went on a trip to the art museum and sketched a scale drawing of a rectangular wall mural. She used a scale factor of 0.

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The average marks obtain by three students is 15.if 2 students obtain 12 and 18 Marks respectively find the marks obtained by th

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Answer: 15

Step-by-step explanation:

Average is sum of scores/ number of scores, from the question, average is given as 15.

Let the missing score be x

Equation for the questionis represented as: 12 + 18 + x /3 = 15

30 + x /3 = 15

Cross multiply

30 + x = 15×3

30 + x = 45

Subtract 30 from both sides

30 + x -30 = 45 -30

x = 15.

Check:

12 + 18 + 15/3 = 15

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I hope this is clear, please mark as brainliest answer

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4 years ago

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Step-by-step explanation:

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2) f(x) = x² **<br> g(x)= 3x – 2<br> Find f(g(-4)

Usimov [2.4K]

Answer:

$f(g( - 4)) = 196$

Step-by-step explanation:

The functions are;

$f(x) = {x}^{2}$

and

$g(x) = 3x - 2$

We want to find

$f(g( - 4))$

First we find g(-4) to get:

$g( - 4) = 3 \times - 4 - 2$

$g( - 4) = - 12- 2$

$g( - 4) = - 14$

Now

$f(g( - 4)) = f( - 14)$

This implies that,

$f(g( - 4)) = {( - 14)}^{2}$

$f(g( - 4)) = {( - 14)} \times - 14$

$f(g( - 4)) = 196$

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3 years ago