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4 years ago

I don’t know how to start with drawing the diagram for this question.

Mathematics

1 answer:

kogti [31]4 years ago

6 0

Consider right triangles ADB and ADC in the figure, right angle D.

By alternate transversals ABD=63° and ACD=11°.

$\tan 63 = \dfrac 8 y$

$\tan 11 = \dfrac 8{x+y}$

$y = \dfrac{8}{\tan 63}$

$x = -y + \dfrac{8}{\tan 11}$

$x = \dfrac{8}{\tan 11} - \dfrac{8}{\tan 63}$

$x \approx 37.08 \textrm{ meters}$

That's in one second, so

Answer: 37 meters per second

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a museum has a collection of 75 sculptures. of those sculptures 15 are from greece what percent of the sculptures are from greec

zaharov [31]

Answer:

6.67% is as close as you can get

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The table gives the surface areas, in square kilometres, of five seas.

zlopas [31]

The table is missing, so i have attached it.

Also, the correct question is;

The surface area of the East China Sea is k times the surface area of the Baltic Sea.

Work out the value of k.

Give your answer to the nearest whole number

Answer:

k = 3

Step-by-step explanation:

From the attached table,

Surface area of east china = 1.25 × 10^(6) km²

Surface area of Baltic sea = 4.22 × 10^(5) km² = 0.422 × 10^(6) km²

We are told that the surface area of East China Sea is k times that of the surface area of the Baltic Sea.

Thus;

1.25 × 10^(6) = k × 0.422 × 10^(6)

k = 1.25/0.422

k = 2.96

Approximating to whole number gives;

k = 3

4 0

3 years ago

Michelle and Natalie both went out to eat at a new restaurant. Michelle's bill was $22.50, and she left a 15% tip. Natalie's bil

Sindrei [870]

I personally think Natalie's bill is the greatest because $24.25 × 10 =x

6 0

4 years ago

A butcher $32 for X pounds of beef ribs. Which expression represents the price per pound?

Lera25 [3.4K]

Answer:

The expression $32/x represents the price per pound.

Step-by-step explanation:

Given:

$32 for X pounds of beef ribs.

Now, the symbol which represents the per is this → / .

So, $ $32/x$ shows the expression for the price per pound.

Therefore, the expression $32/x represents the price per pound.

4 0

4 years ago

Benjamin threw a rock straight up from a cliff that was 48 ft above the water. If the height of the rock h, in feet, after t s

fomenos

Answer: It will take 4 seconds for the rock to hit the water.

Step-by-step explanation:

Given : Benjamin threw a rock straight up from a cliff that was 48 ft above the water.

If the height of the rock h, in feet, after t seconds is given by the equation

$h = -16 t^2+ 52 t + 48$

To find : Time taken for the rock to hit the water.

When rock hit the water height becomes zero , i.e. put h = 0 , we get

$-16 t^2+ 52 t + 48 =0$

Divide equation by 2 , we get

$-8t^2+26t+24=0$

The Laue of x for ax²+bx+c =0 is $x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

So , $t=\frac{-26\pm\sqrt{(26^{2}-4(-8)(24))}}{2(-8)}$

$t=\dfrac{-26\pm 38}{-16}\\\\ t=-\dfrac{-26+38}{-16}=-0.75\ \ t=\dfrac{-26-38}{-16}=4$

Since t cannot be negative , so t= 4

Hence, it will take 4 seconds for the rock to hit the water.

5 0

3 years ago