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3 years ago

I don't understand at all

Mathematics

2 answers:

Masja [62]3 years ago

5 0

ItsB as it's asking for angle 2 and you can either go from DBC or CBD. But as DBC is only there, so it's B.

Hope this helps!

Eddi Din [679]3 years ago

3 0

The answer is b, as angles ABC is the first half of the angle.

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What is the degree of polynomial?<br>With example!

Inessa [10]

Answer:

$\boxed{\mathfrak{Question ~}}$

What is the degree of polynomial?

$\large\boxed{\mathfrak{Answer}}$

The degree of a polynomial is the highest of the degrees of the polynomial's monomials with non-zero coefficients.

Example:

${6x}^{4} + {2x}^{3} + 3$

4x The Degree is 1 (a variable without an

exponent actually has an exponent of 1)

More Examples:

4x^ − x + 3 The Degree is 3 (largest exponent of x)

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3 0

2 years ago

Read 2 more answers

Show each step of your work.<br><br> Solve -3x – 2 = 19.

IgorLugansk [536]

Answer:

Step-by-step explanation:

-3x -2 = 19

+3x +3x

-2 = 19 + 3x

-19 -19

-21 = 3x

Divided by 3

-7 = x

5 0

3 years ago

The graph shows the side view of a water slide

GaryK [48]

Step-by-step explanation: Given that the graph shows the side view of a water slide with dimensions in feet.

We are to find the rate of change between the points (0, ?) and (?, 40).

From the graph, we note that

the y co-ordinate for the x co-ordinate 0 is 80 and the x co-ordinate for the y co-ordinate 40 is 5.

So, the given two points are (0, 80) and (5, 40).

The rate of change for a function f(x) between the points (a, b) and (c, d) is given by

Therefore, the rate of change for the given function between the points (0, 80) and (5, 40) is

Thus, the required rate of change is -8.

7 0

2 years ago

-/2 points

Rom4ik [11]

Answer:

Part 1) The domain of the quadratic function is the interval (-∞,∞)

Part 2) The range is the interval (-∞,1]

Step-by-step explanation:

we have

$f(x)=-x^2+14x-48$

This is a quadratic equation (vertical parabola) open downward (the leading coefficient is negative)

step 1

Find the domain

The domain of a function is the set of all possible values of x

The domain of the quadratic function is the interval

(-∞,∞)

All real numbers

step 2

Find the range

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

we have a vertical parabola open downward

The vertex is a maximum

Let

(h,k) the vertex of the parabola

The range is the interval

(-∞,k]

Find the vertex

$f(x)=-x^2+14x-48$

Factor -1 the leading coefficient

$f(x)=-(x^2-14x)-48$

Complete the square

$f(x)=-(x^2-14x+49)-48+49$

$f(x)=-(x^2-14x+49)+1$

Rewrite as perfect squares

$f(x)=-(x-7)^2+1$

The vertex is the point (7,1)

therefore

The range is the interval

(-∞,1]

6 0

3 years ago

4 1/3 ÷ 5 1/6 the respricol of a fraction must be found to solve the problem .what is reciprocal fraction that should be used ?

emmasim [6.3K]

The denominator would be 6.

4 0

3 years ago