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3 years ago

15

Equivalent expression for 77x+21

1 answer:

yulyashka [42]3 years ago

8 0

You could factor out a 7 to get
$7(11x + 3)$

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What is the ratio of ounces of<br> peanuts to ounces of almonds?

MAXImum [283]

Answer:

In what?

Step-by-step explanation:

7 0

3 years ago

You are selling lemonade for $1.50 a bag of kettle corn for $3 and a hotdog for $2.50 at a fair write and simplify an expression

Free_Kalibri [48]

P(1.50+3+2.50)=the amount of money you receive.

5 0

3 years ago

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Circle O, with center (x, y) passes through the points A(0, 0), B(-3, 0), and C(1, 2). Find the coordinates of the center of the

KonstantinChe [14]

Answer:

The center of the circle is

$(-\frac{3}{2},2)$

Step-by-step explanation:

Let the equation of the circle be

$x^2+y^2+2ax+2by+c=0$ , where (-a,-b) is the center of this circle.

The points lying the circle must satisfy the equation of this circle.

A(0,0)

We substitute this point to get;

$0^2+0^2+2a(0)+2b(0)+c=0$

$\implies c=0$

B(-3,0)

$(-3)^2+0^2+2a(-3)+2b(0)+c=0$

$\implies 9+0-6a+0+c=0$

$\implies -6a+c=-9$

But c=0

$\implies -6a=-9$

$\implies a=\frac{3}{2}$

C(1,2)

$1^2+2^2+2a(1)+2b(2)+c=0$

$1+4+2a+4b+c=0$

$2a+4b+c=-5$

Put the value of 'a' and 'c' to find 'b'

$2(\frac{3}{2})+4b+0=-5$

$3+4b+0=-5$

$4b=-5-3$

$4b=-8$

b=-2

Hence the center of the circle is

$(-\frac{3}{2},2)$

8 0

3 years ago

Who is Albert Einstein?

madreJ [45]

Answer:

Albert Einstein was a German mathematician and physicist who developed the special and general theories of relativity.

3 0

3 years ago

Find the surface area of the cube.

Mrac [35]

<h3><u>Given</u>:-</h3>

$\rightarrow$ Side(a) of the cube = $\sf{\frac{1}{3}ft}$ .

<h3><u>To Find</u>:-</h3>

$\rightarrow$ Surface Area of the cube with side $\sf{\frac{1}{3}ft.}$

<h3><u>Formula Used</u>:-</h3>

$\rightarrow$ Surface area of cube = $\sf{6a^2}$

<h3><u>Solution</u>:-</h3>

$\rightarrow$ Surface area of cube = $\sf{6a^2}$ (putting the value of a from the above given)

$\rightarrow$ $\sf{=\:6×(\frac{1}{3})^2}$

$\rightarrow$ $\sf{=\:6×\frac{1}{9}}$

$\rightarrow$ $\sf{=\:\frac{6}{9}}$

$\rightarrow$ $\sf{=\:\frac{2}{3}ft^2}$

Therefore, surface area of the given square = $\sf{=\:\frac{2}{3}ft^2}$

__________________________________

Hope it helps you:)

3 0

2 years ago

Read 2 more answers