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3 years ago

2/3 of 16 ...........................

Mathematics

2 answers:

maxonik [38]3 years ago

5 0

Answer:

2/3 * 16

32/3 = 10.66

hope it helps

gregori [183]3 years ago

4 0

Answer:

Step-by-step explanation:

i hope it helps......

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Plz help me with this

Softa [21]

Answer: b) 8√2

<u>Step-by-step explanation:</u>

$64^{\frac{7}{12}}=(2^6)^\frac{7}{12}=2^\frac{6\cdot 7}{12}=2^{\frac{7}{2}}=\sqrt{\underline{2\cdot 2}\cdot \underline{2\cdot 2}\cdot \underline{2\cdot 2}\cdot 2}=2\cdot 2\cdot 2\sqrt2=\large\boxed{8\sqrt2}$

7 0

2 years ago

The sum of two numbers is 21.

mafiozo [28]

Answer:

Pretend that x and y represents the 2 numbers that we need to find.

According to the information, we know that:

x + y = 21

6x = y

Replace y in the first equation with 6x (because they are equal to each other according to the second equation):

x + y = 21

x + 6x = 21

7x = 21

x = 21/7 = 3

Now have two ways to find y, both will give us the same result:

3 + y = 21 ⇔ y = 21 - 3 = 18

6 · 3 = y ⇔ y = 18

So the numbers that we need to find are 3 and 18.

7 0

3 years ago

Read 2 more answers

If f(x)=4x-5 and g(x)=3-2x find f(x)+g(x)

Akimi4 [234]

(fg)(x) = [f(x)][g(x)]
(fg)(x) = (4x - 5)(3) = 12x - 15

8 0

2 years ago

The average weight of 3 containers A,B and C is 3.2kg. Container A is twice as heavy as container B. Containers B is 400 g heavi

dlinn [17]

Answer:

The weight of container C is 2.1kg.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x is the weight of container A.

y is the weight of container B.

z is the weight of container C.

The average weight of 3 containers A,B and C is 3.2kg.

This means that the total weight is 3*3.2 = 9.6kg. So

$x + y + z = 9.6$

Container A is twice as heavy as container B.

This means that $x = 2y$ .

Containers B is 400 g heavier than container C.

400g is 0.4kg. So

This means that $y = z + 0.4$ , or $z = y - 0.4$

Replacing y and z as functions of x in the first equation:

$x + y + z = 9.6$

$2y + y + y - 0.4 = 9.6$

$4y = 10$

$y = \frac{10}{4} = 2.5$

Container C

$z = y - 0.4 = 2.5 - 0.4 = 2.1$

The weight of container C is 2.1kg.

4 0

3 years ago

What is the equation of a parabola with vertex (0, 0) and directrix x = -3.

miv72 [106K]

Answer:

${y}^{2}= 12x$

Step-by-step explanation:

The standard equation of a parabola with vertex at the origin and and directix x=-p is of the form

${y}^{2} = 4{p}x$

Where p is simplify the distance from the origin to the directrix.

That is

$p = 3$

${y}^{2} = 4 \times 3x$

This simplifies to

${y}^{2}= 12x$

3 0

2 years ago