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4 years ago

Which is shortest 0.81m 1.08m 0.8m 180cm 18cm

Mathematics

1 answer:

UkoKoshka [18]4 years ago

5 0

I belive its 18cm,,,,,,,,,,,,,,,,,,,,,,,,,,,,

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PLZ HURRY IT'S URGENT!!!

Marrrta [24]

Answer:

D. -3

Step-by-step explanation:

Add all numbers together = -15

then divide by the numbers of numbers = 5

= -3

6 0

3 years ago

Read 2 more answers

Which of the following equations is used to find the value of c (the distance to the foci) for an ellipse?

Reika [66]

The equation of ellipse:

$\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1$

The formula of c (the distance to the foci)

$c^2=a^2-b^2\qquad|\text{add}\ b^2\ \text{to the both sides}\\\\c^2+b^2=a^2$

<h3>Answer: c² + b² = a²</h3>

4 0

3 years ago

I need to find the value of x and BC if B is between C and D<br><br> CB=4X-9, BD= 3X+5, and CD = 17

Rainbow [258]

It is given in the question that B is in between C and D.

Therefore

$CB+ BD = CD$

Substituting the given values of CB,BD and CD, we will get

$4x-9+3x+5=17$

Combining like terms, we will get

$7x-4=17$

Now we need to move 4 to the right side by adding 4 to both sides, that is

$7x = 21
\\
x=3$

5 0

4 years ago

Pythagorean theorem A=8 B=? C=17

QveST [7]

$\text{Solve for b:}\\\\\text{Pythagorean Theorem:}\\\\a^2+b^2=c^2\\\\\text{Plug in and solve:}\\\\8^2+b^2=17^2\\\\64+b^2=17^2\\\\64+b^2=289\\\\\text{Subtract 64 from both sides}\\\\b^2=225\\\\\text{Square root both sides}\\\\\sqrt{b^2}=\sqrt{225}\\\\\boxed{b=15}$

7 0

4 years ago

Read 2 more answers

Please help me, i need help on this!!!! thx

Murrr4er [49]

Check the picture below.

$\bf \textit{ellipse, horizontal major axis} \\\\ \cfrac{(x- h)^2}{ a^2}+\cfrac{(y- k)^2}{ b^2}=1 \qquad \begin{cases} center\ ( h, k)\\ vertices\ ( h\pm a, k) \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} h=0\\ k=0\\ a=3\\ b=2 \end{cases}\implies \cfrac{(x-0)^2}{3^2}+\cfrac{(y-0)^2}{2^2}=1\implies \cfrac{x^2}{9}+\cfrac{y^2}{4}=1$

6 0

4 years ago