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3 years ago

4 [-2a - 6b + 5a - 1]

Mathematics

1 answer:

Paha777 [63]3 years ago

3 0

Answer:

Step-by-step explanation:

$4 [-2a - 6b + 5a - 1]\\\\Simplify\:\\-2a - 6b + 5a - 1 : 3a-6b-1\\\\=4\left(3a-6b-1\right)$

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True or false: Most proofs in geometry are called direct proofs because theorems and postulates are used to prove a statement us

vivado [14]

Answer:

The statement is true

Step-by-step explanation:

Most proofs are direct proofs becaue theorums & postulates prove them true straightforwardly :)

5 0

2 years ago

Write as a product: 25a2−0.01b10

Yakvenalex [24]

Answer:

We conclude that:

$25a^2-0.01b^{10}=\left(5a+0.1b^5\right)\left(5a-0.1b^5\right)$

Step-by-step explanation:

Given the expression

$25a^2-0.01b^{10}$

Rewrite $25a^2-0.01b^{10}$ as $\left(5a\right)^2-\left(\sqrt{0.01}b^5\right)^2$

$25a^2-0.01b^{10}=\left(5a\right)^2-\left(\sqrt{0.01}b^5\right)^2$

Apply difference of two squares formulas:

$x^2-y^2=\left(x+y\right)\left(x-y\right)$

$\left(5a\right)^2-\left(\sqrt{0.01}b^5\right)^2=\left(5a+\sqrt{0.01}b^5\right)\left(5a-\sqrt{0.01}b^5\right)$

$=\left(5a+0.1b^5\right)\left(5a-0.1b^5\right)$ ∵ $\sqrt{0.01}=0.1$ ,

Therefore, we conclude that:

$25a^2-0.01b^{10}=\left(5a+0.1b^5\right)\left(5a-0.1b^5\right)$

7 0

2 years ago

I need help on this to please

vampirchik [111]

Answer:

2,4

Step-by-step explanation:

because i said so

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3 years ago

On a unit circle, the ordered pair (x, y) represents the point where the terminal side of e intersects the unit circle. If m<

tatyana61 [14]

Complete Question

Refer to attachment

Answer:

Option C

Step-by-step explanation:

From the question we are told that:

$m \angle \theta=120$

Generally the angle of inclination is $\theta$

$\theta =180-120$

$\theta=60$

Generally the equation for x is mathematically given by

$x=cos60\textdegree *1$

$x=\frac{1}{2}$

Since x exists in the second quadrant

Therefore the value of x in simplest form is

$x=-\frac{1}{2}$

Option C

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3 years ago

A certain number is three more that five times another number. The difference of the two numbers is 11

Slav-nsk [51]

Answer:

The number would be 2.

Step-by-step explanation:

I set up an equation 5x+3, and x. So since it's a difference we know that we have to subtract, so I subtracted the two expressions, and set that equal to 11.

Solve 5x+3-x=11

Answer 4x=8, x=2

Hope this helps, if does hit the Thanks button!

5 0

3 years ago

4 [-2a - 6b + 5a - 1]​

4 [-2a - 6b + 5a - 1]