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3 years ago

Write the standard equation of the circle shown.

Mathematics

1 answer:

zysi [14]3 years ago

4 0

Answer:

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ← r is the radius

The circle shown is centred at the origin and has a radius of 5, thus

x² + y² = 5² ⇒ x² + y² = 25 → b

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Kayle and Olivia both just got their first jobs. After working for two weeks they received pay checks. Kayle received her check

MaRussiya [10]

Answer:

ovlivia makes more per hour than kayle

Step-by-step explanation:

ovlivia makes $8.75 per hour while Kayle makes $8.5 per hour

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2 years ago

Find y. y - 4 = 3x - 5y

Vlad [161]

Answer:
y = -1 + -0.75x
explanation:

7 0

2 years ago

Read 2 more answers

How to solve 4x-c=k solve for x

Tresset [83]

Answer:

$x = \frac{k + c}{4}$

Step-by-step explanation:

Given:

$4x - c = k$

Solve for:

$x$

Solution:

(1) Let's move all of components that do not contain $x$ (our target) to the right side (notice the change of sign of $c$ from negative to positive):

$4x = k + c$

(2) Let's divide both sides of equation by 4:

$\frac{4x}{4} = \frac{k + c}{4}$

(3) Now, we simplify the left side:

$x = \frac{k + c}{4}$

This is the solution.

Hope this helps!

3 0

3 years ago

A model car uses the scale 1:43. The actual length of a car is 17.2 feet. What is the length of the model car?

faust18 [17]

17.2/43= 0.4

Since the scale is 1:43, you would just divide the actual length by 43.

0.4:17.2 is congruent to 1:43.

43/17.2= 2.5

1/.04= 2.5

I hope this helps!
~kaikers

7 0

3 years ago

polynomial function of degree 4 with -1 as a zero of multiplicity 3 and 0 as a zero of multiplicity 1

iren [92.7K]

$\bf \begin{cases}
x=-1\implies &x+1=0\\
x=0\implies &x=0
\end{cases}
\\\\\\
\stackrel{\textit{multiplicity of 3}}{(x+1)^3}~~\stackrel{\textit{multiplicity of 1}}{(x)^1}=\stackrel{original~polynomial}{0}
\\\\\\
(x^3+3x^2+3x+1)(x)=\stackrel{y}{0}\implies x^4+3x^3+3x^2+x=y$

6 0

3 years ago