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3 years ago

What is it Simplify 5(6-3)+2

2 answers:

8 0

The correct answer is 17, you do what’s in parentheses first (6-3) = 3 then you would multiply bc the ( means to multiply. So multiply 5x3 =15 15 + 2= 17

fenix001 [56]3 years ago

6 0

Answer:

Step-by-step explanation:

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3 years ago

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Sophie [7]

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3 years ago

Read 2 more answers

The radius of the base of a cylinder is increasing at a rate of 7 millimeters per hour. The height of the cylinder is fixed at 1

Ilya [14]

Answer:

The rate of change of the volume of the cylinder at that instant = $791.28\ mm^3/hr$

Step-by-step explanation:

Given:

Rate of increase of base of radius of base of cylinder = 7 mm/hr

Height of cylinder = 1.5 mm

Radius at a certain instant = 12 mm

To find rate of change of volume of cylinder at that instant.

Solution:

Let $r$ represent radius of base of cylinder at any instant.

Rate of increase of base of radius of base of cylinder can be given as:

$\frac{dr}{dt}=7\ mm/hr$

Volume of cylinder is given by:

$V=\pi\ r^2h$

Finding derivative of the Volume with respect to time.

$\frac{dV}{dt}=\pi\ h\ 2r\frac{dr}{dt}$

Plugging in the values given:

$\frac{dV}{dt}=\pi\ (1.5)\ 2(12)(7)$

$\frac{dV}{dt}=252\pi$

Using $\pi=3.14$

$\frac{dV}{dt}=252(3.14)$

$\frac{dV}{dt}=791.28\ mm^3/hr$ (Answer)

Thus rate of change of the volume of the cylinder at that instant = $791.28\ mm^3/hr$

6 0

3 years ago

Solve for X.<br><br> -3/2(x-2)=45/14<br><br> Please show work.

ICE Princess25 [194]

Answer:

-1/7

Step-by-step explanation:

-3/2(x-2)=45/14

x-2=(45/14)/(-3/2)

x-2=(45/14)(-2/3)

x-2=-90/42

simplify -90/42 into -15/7

x-2=-15/7

x=-15/7+2

x=-15/7+14/7

x=-1/7

7 0

3 years ago

Read 2 more answers

El volumen de un cubo, cuyos lados miden 4,5 cm corresponde a: A- 91 cm2 B- 91,1 cm C- 91 cm3

Leya [2.2K]

Answer:

La respuesta correcta es la opción C: 91 cm³.

Step-by-step explanation:

La fórmula del volumen de un cubo es la siguiente:

$V = a^{3}$

En dónde:

a: es cada lado del cubo = 4,5 cm

Entonces, el volumen del cubo es:

$V = a^{3} = (4,5 cm)^{3} = 91.1 cm^{3} \approx 91 cm^{3}$

Por lo tanto, la respuesta correcta es la opción C: 91 cm³.

Espero que te sea de utilidad!

6 0

3 years ago