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gayaneshka [121]
3 years ago
10

Question 1

Mathematics
1 answer:
Ierofanga [76]3 years ago
3 0

Answer:

55

Step-by-step explanation:

If they're complementary, that means they add up to 90 so:

x + x - 20 = 90

Then, solve.

2x - 20 = 90\\2x = 110\\x= 55

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Given the triangle below, solve for X.
Dima020 [189]

Answer:

19.8494332413? Sorry I couldn't be more helpful.

Step-by-step explanation:

Use the Pythagorean theorem.

a^{2}+b^2=c^2\\13^2+15^2=x^2\\169+225=x^2\\394=x^2\\19.8494332413=x




5 0
3 years ago
A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person's weight, in pounds, when rounded to th
Vlada [557]

Answer:

you multiply 0.45kg by 87kg you will get 39lb

8 0
3 years ago
Are the triangles similar? Justify your answer​
cluponka [151]

Answer:

Yes

Step-by-step explanation:

If you divide all the sides of the larger triangle by 3, it's equivalent to the sides of the smaller triangle. Therefore, they are similar.

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3 years ago
What are sets and Pls give examples​
PilotLPTM [1.2K]
Is a collection of well defined and distinct objects.
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6 0
4 years ago
12,348 <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula">
Diano4ka-milaya [45]

Answer:

radius of the sphere (r) = 21 units

Step-by-step explanation:

here's the solution : -

=》

12348\pi =  \frac{4}{3}  \times \pi \times  {r}^{3}

=》

{r}^{3}  = 12348 \times  \frac{3}{4}

( pi cancel out )

=》

{r}^{3}  = 9261

=》

r = 21

4 0
3 years ago
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