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3 years ago

PLEASEEEE HELP ILL GIVE BRAINLIEST

Mathematics

2 answers:

ivann1987 [24]3 years ago

7 0

Answer: A) 3

Step-by-step explanation:

2x+5=11

2x=6

x=3

Vsevolod [243]3 years ago

6 0

Answer:

x = 3

Step-by-step explanation:

Taking this from the graph:

2x + 5 = 11

2x = 6

x = 3

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Quickly answer number 10 text only no fonts (100 points) mark brainliest

Y_Kistochka [10]

There's no picture but soon as you add one so I can see what I'm answering then I will immediately help!

5 0

3 years ago

When a particular mass-spring system is started by stretching the spring 3 cm, one complete oscillation takes 4 seconds.

11Alexandr11 [23.1K]

Answer:

A. 5.16 s.

B. 5.66 s.

Step-by-step explanation:

For a simple harmonic motion,

T = 2pi (sqrt * (l/g))

Given:

L1 = 3 cm

T1 = 4 s

L2 = 5 cm

T2 = ?

4 = 2pi*sqrt(3/g)

g = 7.4

At, L2,

T2 = 2pi*sqrt(5/7.4)

= 5.16 s.

M1 = M1

M2 = 2*M1

For a simple harmonic motion,

T = 2pi (sqrt * (m/k))

4 = 2pi (sqrt * (M1/k))

M1/k = 0.405

Inputting the above values,

T2 = 2pi (sqrt * (2*M1/k))

= 2pi (sqrt * (2 * 0.405))

= 5.66 s.

4 0

3 years ago

A truck driver travels at 59 miles per hour. The truck tires have a diameter of 30 inches. What is the angular velocity of the w

Misha Larkins [42]

Answer:

$661.4\ rpm$

Step-by-step explanation:

we know that

1 mile=63,360 inches

step 1

Find the circumference of the wheels

$C=2\pi r$

we have

$r=30/2=15\ in$ -----> the radius is half the diameter

substitute

$C=2\pi(15)$

$C=30\pi\ in$

assume

$\pi =3.14$

$C=30(3.14)=94.2\ in$

Remember that

The circumference of the wheels represent one revolution

Convert 59 miles per hour to inches per minute

$59\ mi/h=59*63,360/60=62,304\ in/min$

using proportion find the number of revolutions

$\frac{1}{94.2}\frac{rev}{in}=\frac{x}{62,304}\frac{rev}{in}\\ \\x=62,304/94.2\\ \\x=661.4\ rev$

therefore

substitute

$62,304\ in/min=661.4\ rev/min=661.4\ rpm$

5 0

3 years ago

Please help I will give brainlyiest fast please help fast

lana [24]

Answer:

A. 49.

Step-by-step explanation:

<u>Given equation:</u>

-11 2/3 * (-4 1/5)

<u>Simplify, then solve:</u>

-11 2/3 * (-4 1/5)
= -35/3 * (-21/5)
= $\frac{-35 * (-21)}{3 * 5}$
= 735/15
= 49.

Your answer is A. 49.

5 0

2 years ago

Picture linked below

finlep [7]

Answer:

60.32 cm²

Step-by-step explanation:

7 0

3 years ago

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