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tekilochka [14]
2 years ago
5

There are 10 animals in the field. some are buffalo and some are ducks there are 34 legs in all. how many of each animal are in

the field?
Mathematics
1 answer:
hoa [83]2 years ago
5 0

Answer:

7 buffalos and 3 ducks

Step-by-step explanation:

create a system of equations:

4 y + 2 x = 34

y + x = 10

* y is for buffaos and x is for ducks

solve the equation:

y=10-x

4(10-x)+2x=34

x=3

y=10-3

y=7

7 buffalos and 3 ducks

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Help asap!<br><br> Thanks in advance!<br><br> There's two questions btw:)
lutik1710 [3]

Answer:

[1].

Option A and D are correct.

[2].

Option A is correct

Step-by-step explanation:

[1].

Quadratic function states that it is an equation of second degree i.,e it contains at least one term that is squared.

The standard form of the quadratic equation is; ax^2+bx+c = 0

A.

y(y+4)-y = 6

Using distributive property: a\cdot (b+c) = a\cdot b + a\cdot c

y^2+4y-y=6

Combine like terms;

y^2+3y = 6

or

y^2+3y -6=0 which represents a quadratic equation.

B.

3a-7 = 2(7a-3)

3a-7 = 14a-6

or

11a+1 = 0 which is not a quadratic equation.

C.

(3x+2)+(6x-1) = 0

Combine like terms;

9x +1 = 0 which is not a quadratic equation.

D.

4b(b) = 0

4b^2 = 0 which represents the quadratic equation.

[2].

Given the parent function: y=x^2

The reflection rule over x axis is given by;

(x, y) \rightarrow (x, -y)

then

the function become: y = -x^2

Vertical shift:

If c is a positive real number, the graph y=f(x)+c is the graph of y =f(x) shifted upward c units.

If c is a positive real number, the graph y=f(x)-c is the graph of y =f(x) shifted downward c units.

then;

The graph y=-x^2-3 is the graph of y=-x^2 shifted 3 units down.

Therefore, the translation of the graph of  y=x^2 to obtain y=-x^2-3 is, reflect over the  x-axis and shift down 3




6 0
3 years ago
List all the terms in the expression below 6X -10 Y +13 +5z
marishachu [46]

plz mark me as brain list

7 0
2 years ago
Read 2 more answers
Evaluate if a = 2 and b = 4 : 4a + 6b
bogdanovich [222]

Answer:

8+24

32

Step-by-step explanation:

4 times 2 is 8

6 times 4 is 24

5 0
2 years ago
Which of the following rational functions is graphed below?
vladimir2022 [97]

Answer: Choice C f(x) = \frac{1}{x(x+4)}

========================================================

Explanation:

The vertical asymptotes are the red dashed lines. They are x = -4 and x = 0. Think of them as electric fences that the graph cannot touch or cross. The curve can only get closer and closer.

The vertical asymptote is due to a division by zero error.

When x = 0, the denominator x(x+4) turns into 0 since

x(x+4) = 0(0+4) = 0*4 = 0

Similarly, when x = -4, the denominator is also zero

x(x+4) = -4(-4+4) = -4*0 = 0

So if x = -4 or x = 0, then we have a division by zero error and that's what produces the vertical asymptotes at those locations shown on the graph.

This is why the answer is choice C. f(x) = \frac{1}{x(x+4)}

4 0
2 years ago
HELP? I don’t know the answer
iren [92.7K]
ANSWER

It is horizontally compressed by a factor of 2 and reflected over the y-axis.

EXPLANATION

The parent function given to us is

y = \sqrt{x}

The parent function has been transformed to obtain

y = \sqrt{ - 2x}

This transformation is of the form:

y = \sqrt{kx}

If

|k| > 1

then,there is a horizontal compression by a factor of k.

Hence

y = \sqrt{ - 2x}

is horizontally compressed by a factor of 2.

Since -2<0, it is a reflection in the y-axis.

The correct choice is the last option.
3 0
3 years ago
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