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2 years ago

Solve for x can't remember how to do this for a circle and triangle through it.

Mathematics

2 answers:

Gala2k [10]2 years ago

6 0

Answer:

x = 2

Step-by-step explanation:

For secants that intersect at an external point, the product of the external length and total length is a constant.

... 3·(3 +5) = 4·(4 +x) . . . . . write the two products, and set them equal

... 24 = 16 +4x . . . . . . . . . . eliminate parentheses

... 8 = 4x . . . . . . . . . . . . . . .subtract 16

... 2 = x . . . . . . . . . . . . . . . . divide by 4

vivado [14]2 years ago

5 0

Answer:

$x=2$

Step-by-step explanation:

(Refer the attachment to find ABCD and O points)

When two secant lines AD and CB intersects at a point outside the circle "O"

then,

OA*OD=OB*OC

Now we can substitute the values and find x.

$3*8=4*(4+x)$

$24=16+4x$

$8=4x$

$x=2$

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Write a equation of a hyperbola given the foci and the asymptotes

professor190 [17]

Solution:

The standard equation of a hyperbola is expressed as

$\begin{gathered} \frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1\text{ \lparen parallel to the x-axis\rparen} \\ \frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1\text{ \lparen parallel to the y-axis\rparen} \end{gathered}$

Given that the hyperbola has its foci at (0,-15) and (0, 15), this implies that the hyperbola is parallel to the y-axis.

Thus, the equation will be expressed in the form:

$\frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1\text{ ----equation 1}$

The asymptote of n hyperbola is expressed as

$y=\pm\frac{a}{b}(x-h)+k$

Given that the asymptotes are

$y=\frac{3}{4}x\text{ and y=-}\frac{3}{4}x$

This implies that

$a=3,\text{ and b=4}$

To evaluate the value of h and k,

$undefined$

3 0

9 months ago

Write 3/10ths as a decimal

s344n2d4d5 [400]

.3
Whenever finding a decimal out of a fraction divide the numerator by the denominator.

8 0

2 years ago

Read 2 more answers

0.09 divided by 1.053

Alex Ar [27]

Answer:

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3 years ago

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9= 2/3 (x+12) plz help

avanturin [10]

Answer: x=3/2

Step-by-step explanation:

Multiply the parentheses by 2/3. 9=2/3x+8.

Multiply both sides by 3 . 27=2x+24

Move the term. When moved to the left side it changes from positive to a negative. -2x=24-27.

-2x=-3

Divide both sides by -2

x=3/2 (x=1 1/2, x=1.5)

5 0

2 years ago

2. Three bells P, Q and R ring at intervals of 40, 48and 60 minutes respectively. If they ring together at 6.15 a.m. when will t

MAXImum [283]

They will ring again together at 10:15am. Because the common factor for 40, 48 and 60 is 240, which means 240 minutes, that equals to 4 hours. Hence 4 hours after 6.15am is 10.15am.

Hope this helps.

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3 years ago