3 years ago

Ai chỉ cách làm cho mk vs ạ

Mathematics

1 answer:

ozzi3 years ago

7 0

I don’t understand sorry

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Examine the system of equations.

earnstyle [38]

Answer:

The correct answer is B(2)

Step-by-step explanation:

I did it and somehow got it right.

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3 years ago

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Please help me with this I don’t understand

Radda [10]

Decreased by means " -".

11.4 -15.7 = -4.3

Answer A.

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4 years ago

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A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed

Olegator [25]

Answer:

The length of shadow decrease at 0.48 m/s.

Step-by-step explanation:

The distance of man from building = x

Thus initially, x = 12

It is given that dx/dt= -1.3 m/s

Let the shadow height = Y

Now solve for the $dy/dt$ when x=4

from the diagram (triangle) it can be seen similar triangles with similar base/height ratios.

$\frac{2}{12-x} = \frac{y}{12} \\Y = \frac{24}{12 - x} \\ \frac{dy}{dt} = \frac{24}{(12-x)^{2}} \times \frac{dx}{dt} \\at x=4, dy/dt \ becomes: \\\frac{24}{(12-4)^2} \times -1.3 \\= -0.48 m/s$

8 0

3 years ago

Susan volunteers at her local animal shelter. She counts the dogs and notices that there are a total of 37 dogs. Of those, 24 ar

Alchen [17]

Answer: There is 48.14% of dogs are male .

Step-by-step explanation:

since we have given that

Total number of dogs = 37

Number of dogs that are female = 24

Number of dogs that are male is given by

$37-24\\\\=13$

We need to find the percentage of dogs are male:

So, Percentage of the dogs are male is given by

$\frac{13}{27}\times 100\\\\=48.14\%$

Hence, there is 48.14% of dogs are male .

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3 years ago

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Use the diagram to find each angle measure.

tensa zangetsu [6.8K]

Answer:

Jack in Zeta Labs near Facility Intelligence and Zeta Labs spawn (Sells gadgets like the Presence Reduction Module and Night Vision Goggles)

Step-by-step explanation:

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3 years ago