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3 years ago

Evaluate 0.3y + y/x when y = 10 and z =5

Mathematics

1 answer:

coldgirl [10]3 years ago

8 0

Answer:

Step-by-step explanation:

0.3*10=3

10/5=2

--------------------

3+2=5

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The length of a rectangle is five less than its width. The area of the rectangle is 84 square feet. Write a quadratic equation i

salantis [7]

Given:

The length of a rectangle is 5 less than its width.

The area of the rectangle is 84 square feet.

We need to determine the quadratic equation in standard form that represents the area of the rectangle.

Dimensions of the rectangle:

Let l denote the length of the rectangle.

Let w denote the width of the rectangle.

Since, it is given that the length is 5 less than its width, it can be written as,

$l=5-w$ and $w=w$

Area of the rectangle:

The area of the rectangle can be determined using the formula,

$A=length \times width$

Substituting A = 84, $l=5-w$ and $w=w$ , we get

$84=(5-w)\times w$

$84=5w-w^2$

Adding both sides of the equation by w², we have;

$w^2+84=5w$

Subtracting by 5w on both sides, we get;

$w^2-5w+84=0$

Thus, the quadratic equation in standard form for the area of the rectangle is $w^2-5w+84=0$

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3 years ago

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cestrela7 [59]

Answer:

Of the 5000 species of mammals, 250 species are carnivorous. What is the ratio of carnivorous to mammals?

Step-by-step explanation:

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3 years ago

Sets L and J are defined as follows.

wlad13 [49]

Answer:

The second one:

L∪J={i,j,k,l,m,n,o}

Step-by-step explanation:

The union is the elements listed in either set.

So since l,m,n, and o are elements of set L, they will also be elements of whatever it is "unioned" with.

Since i,j,k,l and m are elements of set J, they will also be elements of whatever it is "unioned" with.

When you write the union, just be sure to include each element that occurs in either set once.

So the union of L and J is {i,j,k,l,m,n,o}.

The answer is the second one.

The intersection would actually be that upside down U thing, the ∩ symbol. The intersection of two sets is a list of elements that both sets include. So here the intersection would just consist of the elements l amd m.

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3 years ago

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Answer the question in the photo

Artemon [7]

The answer for this question is -20.You have to subtract -15-5 and that’s what you get.

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3 years ago

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sergiy2304 [10]

Answer:

C) x/2 +2y = 4

Step-by-step explanation:

Of the equations offered, only equation C has the given point as a possible solution.

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Since the graph is not given, we don't know if the given point is on the graphed equation.

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3 years ago