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2 years ago

Pls help I'll give brainliest!

Mathematics

1 answer:

natali 33 [55]2 years ago

3 0

Answer:

Step-by-step explanation:

$t_n = {n}^{2} - 5 \\ \therefore \: t_{10} = {10}^{2} - 5 \\ \therefore \: t_{10} = 100 - 5 \\ \huge \red{ \boxed{\therefore \: t_{10} = 95 }}\\$

10th term of the sequence is 95.

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2 years ago

Christina wants to compute the cost of tiling the floor in her bathroom. The floor measures 7 feet 6 inches by 8 feet 10 inches.

ArbitrLikvidat [17]

Answer:

Two boxes will cost $\$35.95\cdot 2=\$71.9.$ The cost of one tile is approximately $\dfrac{\$71.9}{67}\approx \$1.08.$

Step-by-step explanation:

Note that 1 ft = 12 in, then

$7\ ft\ 6\ in=7\cdot 12+6\ in =90\ in,\\ \\8\ ft\ 10\ in=8\cdot 12+10\ in=106\ in.$

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$90\cdot 106=9540\ in^2.$

Now

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9540 sq. in - x tiles.

Mathematically,

$\dfrac{144}{9540}=\dfrac{1}{x},\\ \\x=\dfrac{9540}{144}=66.25$

tiles is needed to cover the floor (67 full tiles).

Each box of tiles contains 45 tiles, so Cristina has to buy 2 boxes. These two boxes will cost $\$35.95\cdot 2=\$71.9.$ The cost of one tile is approximately $\dfrac{\$71.9}{67}\approx \$1.08.$

7 0

2 years ago

Help pls and thank you:)

Bas_tet [7]

I think Z=16 I don’t know exactly sorry

6 0

2 years ago