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3 years ago

Please solve this ASAP I have been stuck on this for an hour or so. Please???

Mathematics

1 answer:

Airida [17]3 years ago

7 0

Answer:

27 m² (blue fabric)

9 m² (brown fabric)

Step-by-step explanation:

Area of a triangle = 1/2*base *height

Area of 4 triangles = 4* 1/2*3*4.5 = 27 m² (blue fabric)

Area of a square = side² = 3² = 9 m² (brown fabric)

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Please help!!!!!

vampirchik [111]

Answer:

Step-by-step explanation:

Consider the quadratic equation, we have

$ax^2+bx+c=0$

Dividing the equation by a, we get

$x^2+\frac{b}{a}x+\frac{c}{a}=0$

Put $\frac{c}{a}$ on the other side,

$x^2+\frac{b}{a}x=\frac{-c}{a}$

Add $(\frac{b}{2a})^2$ on both the sides,

$x^2+\frac{b}{a}x+(\frac{b}{2a})^2=\frac{-c}{a}+(\frac{b}{2a})^2$

completing the square, we have

$(x+\frac{b}{2a})^2=\frac{-c}{a}+(\frac{b}{2a})^2$

Now, solving for x,

$x+\frac{b}{2a}={\pm}\sqrt{\frac{-c}{a}+(\frac{b}{2a})^2}$

$x=\frac{-b}{2a}{\pm}\sqrt{\frac{-c}{a}+(\frac{b}{2a})^2}$

Multiply right side by $\frac{2a}{2a}$ ,

$x=\frac{-b{\pm}\sqrt{b^2-4ac}}{2a}$

which is the required quadratic formula.

8 0

4 years ago

Read 2 more answers

HELP! How do you do this!! Need help ASAP!!

raketka [301]

Multiplying binomial and polynomials can be easy as long as you follow the steps for example:

Let's say you were multiplying 3x-3 and x+2

(3x-3)(x+2)

remember FOIL

OR think about it like this(see attatchment)

3x^2 + 3x -6 is what you should get

8 0

3 years ago

A certain school district has specified 5 different novels and 4 different non-fiction books from which teachers can choose to a

shutvik [7]

Answer:

There are 60 different summer reading lists possible.

Step-by-step explanation:

A certain school district has specified 5 different novels and 4 different non-fiction.

Each summer reading list must have exactly 3 novels and 2 non-fiction books.

So, the number of different summer reading lists that are possible is given by:

$5C3\times 4C2$

= $\frac{5!}{3!2!} \times\frac{4!}{2!2!}$

= $10\times6=60$

Hence, there are 60 different summer reading lists possible.

5 0

3 years ago

What is 10,000 written as a power with a base of 10

yaroslaw [1]

Answer:

10⁴ is 10,000 written as a power with a base of 10

6 0

3 years ago

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If angle 4 is x + 15 and angle 2 is 3x - 5, what is the<br> value of x?

Kamila [148]

Answer:

I cant tell what u mean but if the angles are equal the answer is 10

Step-by-step explanation:

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3 years ago