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3 years ago

HELP I DONT UNDERSTAND!

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

6 0

Answer:

Step-by-step explanation:

5/2=15/6=20/8=2.5

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Solve the equation -2=3-75x2 A.4.98 B.0.43

Serggg [28]

B is the answer !! Hope this helps

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3 years ago

Help anyone. I want to be good at math

dybincka [34]

Practice, practice, practice. And ask questions.

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3 years ago

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A dog trainer has 104 ft of fencing that will be use to create a rectangular work area for dogs. If the trainer wants to enclose

Andrews [41]

Answer:

The dimensions of the work area are 16 ft by 36 ft

Step-by-step explanation:

Let

x ----> the length of the work area in feet

y-----> the width of the work area in feet

we know that

The perimeter of the work area is equal to

$104=2(x+y)$

simplify

$52=(x+y)$

$y=52-x$ ----> equation A

The area of the work area is equal to

$576=xy$ ---> equation B

substitute equation A in equation B

$576=x(52-x)$

$576=52x-x^2$

$x^2-52x+576=0$

solve the quadratic equation by graphing

using a graphing tool

The solutions are

x=16 ft, y=36 ft

x=36 ft, y=16 ft

see the attached figure

therefore

The dimensions of the work area are 16 ft by 36 ft

6 0

3 years ago

98 POINTS!!! Write a polynomial function in standard form given the zeros ±√5 , 7

Neporo4naja [7]

Answer:

Step-by-step explanation:

Knowing the three zeros of the equation, we can set it up as follows:

$(x - \sqrt{5})(x + \sqrt{5})(x - 7)$

Multipying the first two expressions together gives us the following:

$(x^{2} - 5)(x - 7)$

Multiplying the two expressions together gives us the following:

$x^{3} - 7x^{2} - 5x + 35$

3 0

3 years ago

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Wendy throws a dart at this square-shaped target:

Ostrovityanka [42]

Answer:

Hello! I hope I am correct! :)

Step-by-step explanation:

Let’s first calculate the black circle & the white space.

Since there is more white space than the black circle, we already know that the white space will have more probability.

These are the steps you need to do, in order to so love this problem:

1. Find the area of both, the white space and the black circle.

2. Divide both of them by the area of the square.

3. Do all these steps to find the probability/hitting.

Part A:

Black circle: ( π *1^2) / ( π 5^2) = 1/25 = .04 or 3.14% chance.

So we can tell it’s close to zero.

Part B: 1 - .04 = 0.96 or 97%

This is close to one.

(Remember I am not saying the exact, it’s a estimate)

Brainliest would be appreciated!

Hope this helps! :)

By; BrainlyAnime

8 0

3 years ago