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3 years ago

Is this righttttt or nahhhhhhhhh

Mathematics

1 answer:

Schach [20]3 years ago

5 0

Answer:

it should be 3/4

Step-by-step explanation:

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Zmień jednostki prose o pomoc

Len [333]

Answer:

42300000

Step-by-step explanation:

Use known fact

$1\ km=1000\ m$

Consider 1 square kilometer:

$1\ km^2=1\ km\times 1\ km=1000\ m\times 1000\ m=1000000\ m^2$

So, to find the answer, you have to multiply given number of square kilometers by 1000000:

$42.3\ km^2=42.3\times 1000000\ m^2=42300000\ m^2$

4 0

3 years ago

Find y. Round to the nearest tenth: у 270 350 ft y = [? ]ft

Hunter-Best [27]

Answer:

y=620 lemme know if this helped by pressing thanks :)

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

The graph of a quadratic function has a vertex at (5,3) and goes through the point (-1,-9). What is the equation of the function

kotegsom [21]

Answer:

$y=-\frac{1}{3} (x-5)^2+3$

Step-by-step explanation:

We are given the following;

Vertex of a quadratic function = (5,3)
A point where the function passes through (-1, -9)

Required to determine the equation of the function;

We need to know the vertex form of a quadratic function is;

$y=a(x-h)^2+k$ , where h and k correspond to the vertex (h,k)

Therefore, we can replace the variables h and k of the vertex in the equation;

That is;

$y=a(x-5)^2+3$

Then we use the equation and the point given to solve for a

x = -1 and y = -9

We get;

$-9=a(-1-5)^2+3\\-9 = a(36) + 3\\-9 - 3 = 36a\\-12 =36a \\a=-\frac{1}{3}$

Substituting the values of a, h and k in the equation, we get;

$y=-\frac{1}{3} (x-5)^2+3$

Thus, the equation of the function in the vertex form is $y=-\frac{1}{3} (x-5)^2+3$

8 0

2 years ago

Kristin drew a triangle with 2 congruent sides and 1 obtuse angle. Which term best describes the triangle mark all that appl. A

yarga [219]

A and D are correct. If u don't know why look up the definitions of the triangles

5 0

3 years ago

A scientist is studying a form of bacteria that doubles every hour. if the petri dish starts with 2 grams of bacteria

strojnjashka [21]

Answer:

b = 2x²

Step-by-step explanation:

Let the number of bacteria = x

Every hour, the number of bacteria doubles itself, = x * x = x²

But the bacteria started with 2g,

The number of bacteria present is equal to

2 * x² = 2x².

At every hour, the growth of the bacteria is at 2x²

3 0

3 years ago

Read 2 more answers