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3 years ago

Dose anyone know how to do this ??

Mathematics

1 answer:

GalinKa [24]3 years ago

7 0

Hi,

1 m² = 100 cm times 100 cm = 10,000 cm²

If there are 23 grass plants in 100 cm², then an entire m² contains:

$23\cdot\dfrac{10,000\;cm^2}{100\;cm^2}=23\cdot 100=2,300\;grass\;plants.$

Green eyes.

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Solve and simply using prime factorization please

alex41 [277]

Step-by-step explanation:

these look easy you can probably just type it into a calculator, just show your work.

not sure where you got 20 from on the first problem it should be 9/12 I think, based on the examples at the top of the page.

1. 9/12

2. 16/22

3. 30/36

4. 28/44

5. 45/55

6. 50/60

The "/" indicates division btw and or fraction

then do the #x#x#x#x# thing you were doing

7 0

3 years ago

PLEASE HELP ME!!

BartSMP [9]

Answer:

Complementary

Step-by-step explanation:

Complementary angles are angles that add up to 90 degrees, and since there is a 90 degree sign on the angles this is complementary.

4 0

3 years ago

Read 2 more answers

Need these 2 answered. 50 points! Please Show your work, Thanks! :)

Shtirlitz [24]

Answer:

1) A

2) C

Step-by-step explanation:

Question 1)

We have the function:

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

Notice that this is a quadratic function in the vertex form:

$y=a(x-h)^2+k$

Where (h, k) is the vertex point, a is the leading co-efficient, and h is also the axis of symmetry.

Let's identify these characteristics first. Our leading co-efficient a is 2.

And our vertex is (-2, -3). It is not (2, -3) because (x+2) is the same as (x-(-2)).

We want to find the minimum or maximum value of our function, as well as the domain and range.

First, by looking at our leading co-efficient, which is 2, we can see that it's positive. Therefore, our parabola curves upwards.

Therefore, we will have a minimum value. And this minimum value will be our vertex.

Our vertex is (-2, -3). Therefore, our minimum value is at y=-3.

The domain of all quadratics is always all real numbers.

For the range, we refer to our minimum/maximum value.

Our parabola curves upwards and our minimum value is at y=-3.

Therefore, our range is all numbers greater than or equal to -3.

The choice that represents all of these answers is A.

Question 2)

We have:

$y=2(x+2)^2-4$

Again, this is in vertex form. Let's identify our characteristics.

Our leading co-efficient a is 2, so the graph curves upwards.

And our vertex is at (-2, -4).

The axis of symmetry is the same as the x-coordinate of our vertex. Therefore, our axis of symmetry is at x=-2.

So, this function has a vertex at (-2, -4) and an axis of symmetry at x=-2.

The choice that represents these characteristics is C.

So, our answer is C.

And we're done!

7 0

3 years ago

Order from least to greatest. 2.54, 20/ 9 , 32/ 15 , 2.62

Nina [5.8K]

32/15, 20/9, 2.54, 2.62

3 0

3 years ago

Read 2 more answers

You are getting a line-up ready for a school kickball game. You have 7 girls and 7 boys. The rules state each child must kick th

Effectus [21]

Answer:

50,803,200 ways

Step-by-step explanation:

In this situation, since you should alternate girl-boy or boy-girl, the line-up can either start with a boy or a girl kicking which would yield one of the two following patterns:

BGBGBGBGBGBGBG or GBGBGBGBGBGBGB.

For each of those patterns, there are 7! ways to arrange all boys and 7! ways to arrange all girls. The number of ways that a line-up can be made for one round of kicking is:

$n=2*7!*7!\\n=2*(7*6*5*4*3*2)^2\\n=50,803,200\ ways$

There are 50,803,200 ways to set the line-up.

8 0

3 years ago