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3 years ago

5

There are some cubes in a bag.

1 answer:

dedylja [7]3 years ago

8 0

1:5 is the answer in 1:n form

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Make a the subject of a2+b2=c2

wel

Answer:

$a=\sqrt{c^2-b^2$

⇒ $a=\sqrt{(c+b)(c-b)}$ [Factorized form]

Step-by-step explanation:

Given expression:

$a^2+b^2=c^2$

We need to make $a$ the subject.

In order to do that we need to solve the expression for $a$ in terms of $b$ and $c$

We have,

$a^2+b^2=c^2$

Subtracting both sides by $b^2$

$a^2+b^2-b^2=c^2-b^2$

$a^2=c^2-b^2$

Taking square root both sides in order to remove square of $a$

$\sqrt{a^2}=\sqrt{c^2-b^2}$

$a=\sqrt{c^2-b^2$

The difference of squares can be factorized and written as:

$a=\sqrt{(c+b)(c-b)}$ [difference of squares $x^2-y^2=(x+y)(x-y)$ ]

4 0

3 years ago

Aleonysh [2.5K]

Answer:

$\large \boxed{-40, \ 4, \ -4}$

Step-by-step explanation:

$f(x)=-9x+14$

$\sf Put \ x \ as \ 6.$

$f(6)=-9(6)+14$

$f(6)=-54+14$

$f(6)=-40$

$g(x)=-3x^2$

$\sf Put \ g(x) \ as \ -48.$

$-48=-3x^2$

$\displaystyle \frac{-48}{-3} =\frac{-3x^2 }{-3}$

$16=x^2$

$\sqrt{16} =\sqrt{x^2 }$

$x= \pm 4$

6 0

3 years ago

Read 2 more answers

If it snows tomorrow the probability is 0.8 that John will practice his trombone if it does not snow tomorrow there is only a 0.

Bas_tet [7]

Answer:

0.68

Step-by-step explanation:

Given that :

P(trombone | snow) = 0.8 ;

P(trombone | no snow) = 0.5

P(snow) = 0.6

P(trombone) = P(trombone | snow) * p(snow) + P(trombone | no snow) * p(no snow)

P(no snow) = 1 - 0.6 = 0.4

Hence,

P(trombone) = P(trombone | snow) * p(snow) + P(trombone | no snow) * p(no snow)

P(trombone) = (0.8 * 0.6) + (0.5 * 0.4)

P(trombone) = 0.48 + 0.20

P(trombone) = 0.68

7 0

3 years ago

Find the solution to the system of equations.

kompoz [17]

Answer:

The answer is option A.

Hope this helps

4 0

3 years ago

Can someone help me

KiRa [710]

Answer:

im not sure but i need the points

Step-by-step explanation:

<h2>im not sure but i need the points</h2>

4 0

3 years ago