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2 years ago

Please please please please please help me I really need this

Mathematics

2 answers:

sashaice [31]2 years ago

6 0

Answer:

10x² + -18

Step-by-step explanation:

g(f(x)) means you substitute 2x²-5 for every occurrance of x in g(x).

g(f(x)) = 5(2x²-5) + 7 = 10x² - 25 + 7 = 10x² - 18 = 10x² + -18

castortr0y [4]2 years ago

5 0

10x^2+-18
you can get this answer by bringing down your whole problem

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A square wall is covered with sqare tiles. There are 85 tiles altogether along the two diagonals. How many tiles are there on th

olchik [2.2K]

Answer:

There are 1849 tiles on the whole wall.

Step-by-step explanation:

If there are 85 tiles along the two diagonals, we can use the following rule:

$\frac{85+1}{2}=43$

So we have 43 tiles in the first diagonal and 85-43 = 42 in the second diagonal.

Now, as we have a square the side will have 43 tiles so the total area will be cover with:

$A=43*43=1849$

Therefore, there are 1849 tiles on the whole wall.

I hope it helps you!

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3 years ago

Which expression is equivalent to?

guapka [62]

Answer: $\frac{2x\sqrt[4]{y^{2}}}{3}$

Step-by-step explanation:

$\sqrt[4]{\frac{16}[81}} \sqrt[4]{\frac{x^{11}y^{8}}{x^{7}y^{6}}}\\\\=\frac{2}{3} \sqrt[4]{x^{4}y^{2}}\\\\=\frac{2x\sqrt[4]{y^{2}}}{3}$

4 0

1 year ago

PLEASE HELP The toll to cross a bridge is $1.25. If $72.50

blagie [28]

Answer:

Step-by-step explanation:

all you have to do is divide 1.25 from 72.50

6 0

2 years ago

Help with number 9 please please thank you

Harlamova29_29 [7]

Answer:

$\large\boxed{53.9ml=0.0539l}$

Step-by-step explanation:

$1l=1,000ml\to1ml=\dfrac{1}{1,000}l=0.001l\\\\\text{Therefore}\\\\53.9ml=53.9\cdot0.001l=0.0539l$

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3 years ago

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Ksenya-84 [330]

Answer:

the only one that is a function is B

Step-by-step explanation:

the rest of them have repeating inputs which makes them no functions

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2 years ago