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3 years ago

Which answer is right

Mathematics

1 answer:

lilavasa [31]3 years ago

3 0

Step-by-step explanation:

I think it is negative because as the dots get lower the number is decreasing.

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What is the quotient property of exponents?

STALIN [3.7K]

Answer:

when you divide powers with the same base, you can just subtract the exponents

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4 years ago

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What is less 16.45 or 16.454

Solnce55 [7]

16.45 is less than 16.454, Because 16.45 doesnt have a extra # at the end of the #, Add the pretend 0 to 16.45 and compare 0 to 4, And 4 is greater than 0

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3 years ago

Write down an appropriate equation in order to determine x

Ulleksa [173]

Answer:

X+20° = 180°

or, X = 180°-20°

or, X = 160°

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3 years ago

Evaluate 6j+ 23+k/l−3, when j=3, k=7, and l=33. Enter your answer in the box.

LekaFEV [45]

<span>83.212121 or fraction form is </span>83 7/33<span> </span>

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4 years ago

mariela is standing in a building and looking out a window at a tree. The tree is 20 feet away from Mariela, Mariela's line of s

PtichkaEL [24]

Answer: 30.01 feet.

Step-by-step explanation:

You need to remember this identity:

$tan\alpha=\frac{opposite}{adjacent}$

Observe the figure attached, where $h_t$ is the height in feet of the tree.

You need to calculate $h_1$ of the Triangle 1, where:

$\alpha= \alpha_1=42\°\\opposite=h_1\\adjacent=20$

Substitute values into $tan\alpha=\frac{opposite}{adjacent}$ and solve for $h_1$ :

$tan(42\°)=\frac{h_1}{20}\\\\h_1=20*tan(42\°)\\h_1=18$

Now you need to calculate $h_2$ of the Triangle 2, where:

$\alpha= \alpha_2=31\°\\opposite=h_2\\adjacent=20$

Substitute values into $tan\alpha=\frac{opposite}{adjacent}$ and solve for $h_2$ :

$tan(31\°)=\frac{h_2}{20}\\\\h_2=20*tan(31\°)\\h_2=12.01$

Then the height in feet of the tree is:

$h_t=h_1+h_2\\h_t=(18+12.01)ft\\h_t=30.01ft$

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3 years ago