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2 years ago

What's the subset of 1.68

Mathematics

2 answers:

harkovskaia [24]2 years ago

8 0

Its a rational number.

lara [203]2 years ago

7 0

REAL NUMBER, RATIO NUMBER

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What is a radius of a circle given by the equation x²-2x+8y-47=0

Zolol [24]

First, we are going to rewrite it as a parabola equation.
Rewrite.
$8y=-x^2+2x+47$
Divide by 8.
$y=-\frac{x^2}{8}+\frac{x}{4}+\frac{47}{8}$
Factor out coefficient.
$y=-\frac{1}{8}\left(x^2-2x\right)+\frac{47}{8}$
Then, we are going to convert x into square form.
$y=-\frac{1}{8}\left(x^2-2x+1\right)+\frac{1}{8}\cdot \:1+\frac{47}{8}$
Convert the whole expression into square form.
$y=-\frac{1}{8}\left(x-1\right)^2+\frac{1}{8}\cdot \:1+\frac{47}{8}$
Simplify.
$y=-\frac{1}{8}\left(x-1\right)^2+6$
Subtract 6 from both sides.
$y-6=-\frac{1}{8}\left(x-1\right)^2$
Divide by coefficient.
$-8\left(y-6\right)=\left(x-1\right)^2$
Rewrite in standard form.
$4\left(-2\right)\left(y-6\right)=\left(x-1\right)^2$

The radius of the circle will be -2. Also, no matter what the sign says, the radius has to always be positive.
Have a nice day! :)

7 0

2 years ago

Read 2 more answers

What is the value of x? (SEE ATTACHMENT)

coldgirl [10]

The answer should be A. 4.5

Because line x is just over half of the length of the line that is 8ft

6 0

3 years ago

HELPP *20 points*

aleksklad [387]

Answer:

the answer for this problem should be half of 3.1 sense 2.5 is half of 5 so split 3.1 in have to get 1.55. hope this helps.

5 0

2 years ago

The initial number of views for a blog was 10. The number of views is expected to grow at a rate of 15% per week. How many views

Norma-Jean [14]

Answer:

20 views

Step-by-step explanation:

Initial number = 10
Weekly growth rate = 15% or 1.15 times

Equation for this relationship:

V(t) = 10*1.15^t, where t - number of weeks

Number of views in 5 weeks:

V(5) = 10*1.15^5 = 20 views (rounded)

5 0

2 years ago

G(-4) = anyone know the answer to this

Scorpion4ik [409]

G(-4) =1
i hope this helps!

4 0

2 years ago