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3 years ago

Can someone help me with this problem quickly?

Mathematics

1 answer:

kaheart [24]3 years ago

4 0

I don’t know if I’m correct but:

120➗100=1.2

Which could mean that the x could be 1.2

(I’m not sure because I haven’t done this in a long time)
(Sorry if it’s wrong)

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Answer:

I think it’s a

Step-by-step explanation:

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3 years ago

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A bouncy ball is dropped such that the height of its first bounce is 3.25 feet and each successive bounce is 71% of the previous

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2 years ago

At right angles.) 4 m 4 m 2 m 2 m 7 m 2 3 m 7 m 11 m

Arisa [49]

Answer:

Step-by-step explanation:

Area of fig 1 = 1 x b = 7 x 4 = 28

Area of fig 2 = l x b = (7-2) x 3 = 5 x 3 = 15

Area of fig 1 = 1 x b = 7 x 4 = 28 (same as ig 1)

Area of whole fig = fig 1 + fig 2 + fig 3 = 28+15+28 = 71

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2 years ago

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Help with 21 would be much appreciated.

umka2103 [35]

Answer:

$\large\boxed{x=2\sqrt{21}\ and\ y=4\sqrt3}$

Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{CD}{DB}$

We have

$AD=14-8=6\\CD=y\\DB=8$

Substitute:

$\dfrac{6}{y}=\dfrac{y}{8}$ cross multiply

$y^2=(6)(8)$

$y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\ cdot\sqrt3\\\\\boxed{y=4\sqrt3}$

For x use the Pythagorean theorem:

$x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}$

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3 years ago

The price of a pizza plus 12% delivery charge comes to a total cost of $17.92. What was the price of the pizza?

Leya [2.2K]

Answer:

i believe the answer is 14.93 dollars.

Step-by-step explanation:

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2 years ago