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3 years ago

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Find the measure of the third side of the given triangle. P stands for perimeter and has the value 12×²-7×+9. (Hint:the perimete

r is the sum if the three sides of the triangle.) let S represent the measure of the third side.
please answer this if u know the right answer

1 answer:

andreev551 [17]3 years ago

4 0

Answer:

Sry I need points lol

Step-by-step explanation:

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16: Find the coordinates of the foci and the vertices, the eccentricity, the length of the latus rectum of the Hyperbola y^2-16x

Morgarella [4.7K]

Answer:

Foci $(0,\pm\frac{\sqrt{17}}{4})$

Vertices: $(0,\pm 1)$

Eccentricity, e= $\frac{\sqrt{17}}{4}$

Length of latus rectum= $\frac{1}{8}$

Step-by-step explanation:

We are given that

$y^2-16x^2=1$

$y^2-\frac{x^2}{(\frac{1}{4})^2}=1$

The equation of hyperbola is along y-axis because y is positive

Compare the equation with

$y^2/a^2-x^2/b^2=1$ (Along y-axis)

We get

a=1, b=1/4

$a^2+b^2=c^2$

$1+\frac{1}{16}=c^2$

$\frac{16+1}{16}=c^2$

$c^2=\frac{17}{16}$

$c=\pm \frac{\sqrt{17}}{4}$

Therefore,

The coordinates of foci= $(0,\pm c)=(0,\pm\frac{\sqrt{17}}{4})$

The coordinated of vertices= $(0,\pm a)=(0,\pm 1)$

Eccentricity, e=c/a

$e=\frac{\frac{\sqrt{17}}{4}}{1}=\frac{\sqrt{17}}{4}$

Length of latus rectum= $\frac{2b^2}{a}$

Length of latus rectum= $2\times \frac{1}{16}=\frac{1}{8}$

3 0

3 years ago

Plz hepl meeeeeeeeeeeee

Ira Lisetskai [31]

Answer:

5 students

Step-by-step explanation:

2/3 of 30 = 20 students

1/4 of 20 = 5 students

7 0

3 years ago

What is what is this please hel

user100 [1]

Those are exponents and placements of the numbers in decimal like tenths hundretdths thousandths.

8 0

3 years ago

Which of the following shows the correct order for -1 2/5, (-1)^2, -1.4 repeating and (1/2)^2?

klemol [59]

Negitive --> Positive

-1.4, -1, 0.25(1/2^2), 0.4(2/5), And 1(-1^2)

3 0

3 years ago

The original cost of a makeup set was $30. After sales tax, Peter paid a total of $31.71. What is the percent sales tax rate?

S_A_V [24]

Answer:

5.7

Step-by-step explanation:

<u>unrelated</u>, I love how peter is open about buying makeup. i feel as if the gender roles are garbage. #YasQueen #GoPeter #PeterIsCool #MakeupCanBeForBoysToo <3

(also peter could totally be a girl and I am misgendered a person)

6 0

3 years ago

Read 2 more answers