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lara [203]
3 years ago
11

Decimal equivalent to 7.7?

Mathematics
1 answer:
Nostrana [21]3 years ago
8 0
7.7 is a decimal. ;)
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in the diagram below, AB and BC are tangent to O. Which equation could be solved to find y, the measure of ADC
grin007 [14]

Answer:

A

Step-by-step explanation:

∠ABC is formed by 2 tangents to the circle and is measured as

∠ABC = \frac{1}{2} (m  arc ADC - m arc AC ), that is

\frac{1}{2} (y - 119) = 61 → A

8 0
3 years ago
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Which equation is the inverse of y = 16x2 + 1?
Llana [10]

Answer:

y=\frac{\sqrt{x-1} }{4}

Step-by-step explanation:

The given equation is

y=16x^2+1

For this function to have an inverse, we must restrict the domain, say x\ge0

We interchange x and y to get,

x=16y^2+1


We now make y the subject to get;


x-1=16y^2


x-1=16y^2

We divide through by 16 to get;


\frac{x-1}{16}=y^2


We now take the square root of both sides to get;

\pm \sqrt{\frac{x-1}{16}}=y


y=\pm \frac{\sqrt{x-1} }{4}


Since  x\ge 0, the inverse function is


y=\frac{\sqrt{x-1} }{4}


6 0
3 years ago
Solve for x 5*2^3x=21
ELEN [110]
The answer is 0.690129 hope this helps:)
8 0
3 years ago
The width of Estelle's rectangular living room is 4 meters, and the distance between opposite corners is 7 meters. What is the l
Crank

Answer:

5.7 meters

Step-by-step explanation:

Image a rectangle being cut diagonally in half, that would lead to two triangles. We can use the pythagorean theorem to find the missing side.

7 is the hypotenuse and 4 is the side length

4^2+x^2=7^2

16+x^2=49

sqrx=sqr(49-16)

x=sqr33

x=5.74

Rounded to the nearest tenth is 5.7

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3 years ago
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