How do you do this function (5a - 6)(2a - 1)

Mathematics

1 answer:

Studentka2010 [4]3 years ago

7 0

Answer:

10a² - 17a + 6

Step-by-step explanation:

Given

(5a - 6)(2a - 1)

Each term in the second factor is multiplied by each term in the first factor, that is

5a(2a - 1) - 6(2a - 1) ← distribute both parenthesis

= 10a² - 5a - 12a + 6 ← collect like terms

= 10a² - 17a + 6 ← in expanded form

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An aquarium measures 61 cm long, 30.5 cm wide, and 30.5 cm high.If the tank is only filled to 80% capacity with water, how much

LiRa [457]

Answer:

$V=45396.2\ cm^3$

Step-by-step explanation:

Given that,

The dimensions of an aquarium are 61 cm long, 30.5 cm wide, and 30.5 cm high.

The tank is filled to 80% capacity with water.

We need to find the water needed for this tank.

The volume of cuboid is given by :

$V=lbh$

As it is filled to 80% capacity, so,

$V=\dfrac{80}{100}\times lbh\\\\=0.8\times 61\times 30.5\times 30.5\\\\V=45396.2\ cm^3$

So, $45396.2\ cm^3$ of water is needed for this tank.

5 0

2 years ago

What is f(3) for the function f(x)=5x+6

BlackZzzverrR [31]

Answer:

567

Step-by-step explanation:

function is the answer.

4 0

3 years ago

ILL GIVE BRAINLIEST!!

densk [106]

Answer:

P(3 , 0)

Step-by-step explanation:

(x₁, y₁) = A(-3,-3) ;(x₂ , y₂) B(5, 1)

m : n = 3 : 1

$P \left( \dfrac{mx_{2}+nx_1}{m+n},\dfrac{my_{2}+ny_{1}}{m+n} \right)\\\\P \left (\dfrac{5*3+(-3)*1}{3+1},\dfrac{3*1+1*(-3)}{3+1} \right)\\\\\\=P \left(\dfrac{15-3}{4},\dfrac{3-3}{4} \right)\\\\\\= P \left(\dfrac{12}{4},\dfrac{0}{4} \right)\\\\\\= P\left(3 , 0 \right)$