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4 years ago

Write the expanded form of 9,003,840,165

Mathematics

1 answer:

jonny [76]4 years ago

8 0

Nine billion, three million, eight hundred forty thousand, one hundred sixty five

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Which is less -.72 or -7/12

Likurg_2 [28]

ok so 7 divided by 12 is 0.5833333 repeating so -0.72 is less because the bigger one is always less in the negatives

5 0

3 years ago

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In right △ABC , the right angle is at C, m∠A=30 degrees , and AC=7√5 units.

Archy [21]

Answer:

$P=(7\sqrt{15}+7\sqrt{5})\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the length side AB (hypotenuse)

we know that

$cos(30^o)=\frac{AC}{AB}$

substitute

$cos(30^o)=\frac{7\sqrt{5}}{AB}$

Remember that

$cos(30^o)=\frac{\sqrt{3}}{2}$

$\frac{\sqrt{3}}{2}=\frac{7\sqrt{5}}{AB}$

$AB=\frac{14\sqrt{5}}{\sqrt{3}}$

$AB=\frac{14\sqrt{15}}{3}\ units$

step 2

Find the length side BC

$sin(30^o)=\frac{BC}{AB}$

$sin(30^o)=\frac{1}{2}$

$\frac{1}{2}=\frac{BC}{AB}$

$BC=\frac{AB}{2}$

substitute the value of AB

$BC=\frac{\frac{14\sqrt{15}}{3}}{2}$

$BC=\frac{7\sqrt{15}}{3}\ units$

step 3

Find the perimeter

$P=AB+BC+AC$

substitute

$P=\frac{14\sqrt{15}}{3}+\frac{7\sqrt{15}}{3}+7\sqrt{5}$

$P=\frac{21\sqrt{15}}{3}+7\sqrt{5}$

$P=(7\sqrt{15}+7\sqrt{5})\ units$

4 0

4 years ago

0.000003 in scientific notation

gayaneshka [121]

the answer would be

3 x 10^-6

6 0

4 years ago

The post office is 0.15 mile from Abdul’s house. His school is 3/

Paladinen [302]

3/20 + 3/8 = ?
|. |.
6/40 + 15/40 = 21/40

21/40 miles in all

7 0

3 years ago

Pls help urgently extra points and mark brainlist

rodikova [14]

Answer:

You got it right it is the second option

Step-by-step explanation:

I'm trying to level up and need 3 more brainliest so if possible can you mark me brainliest if not that's ok! :)

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3 years ago

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