4 years ago

What is the value of x?

Mathematics

1 answer:

OleMash [197]4 years ago

6 0

10cm is the answer hopefully this helps

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A force of 9 lb is required to hold 35lb crate on a hill. What angle does the hill make with the horizontal?

kenny6666 [7]

Answer: $14.9^{\circ}$

Step-by-step explanation:

Given

Applied force is 9 lb to hold of 35 lb crate on a hill

Suppose the hill makes an angle of $\theta$ with horizontal

There will be two component of weights i.e. along and perpendicular to the hill

Only the component along the hill pulls the crate backwards

So,

$\Rightarrow 35\sin \theta=9\\\\\Rightarrow \sin\theta =\dfrac{9}{35}\\\\\Rightarrow \theta =14.89^{\circ}\approx 14.9^{\circ}$

8 0

4 years ago

A solid object in the shape of a cylinder is shown below.

lozanna [386]

Answer:

$0.08\ kg/m^3$

Step-by-step explanation:

Density is defined as mass of an object divided by its volume.

#We calculate the volume of the cylinder:

$V=\pi r^2 h, r=D/2=6/2=3\ cm\\\\=3.14\times 3^2\times 7\\\\=197.82\ m^3$

Given the mass= 15.3kg and volume as above, we calculate density as:

$\rho=\frac{Mass}{Volume}\\\\=\frac{15.3\ kg}{197.82\ m^3}\\\\=0.0773\approx 0.08\ kg/m^3$

Hence, the solid's density is $0.08\ kg/m^3$

4 0

4 years ago

Find area of a rectangle measuring 7m long and 1.3m wide

Alexxandr [17]

To find the area of a rectangle you just multiply the width by the length so 1.3 times 7 = 9.1

6 0

3 years ago

The striton family had a meal catered for a wedding rehearsal dinner.the cost of the dinner was 476.there was a 5% sales tax and

Leokris [45]

476.00×5%=23.80 tax=476+23.80=499.80
499.80×15%=74.97
499.80+74.97=574.77

3 0

4 years ago

Add (4a²b - 3ab2 + 2ab + 5) and (2a2b + 3ab2 - 7ab).

Flauer [41]

I believe the answer is

$B. \: 6a {}^{2} b - 5ab + 5$

I hope it's correct!

HOPE THIS HELPS! LIKE IF IT DOES!

6 0

3 years ago