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3 years ago

98 POINTS PLEASE HELP

Mathematics

2 answers:

grandymaker [24]3 years ago

8 0

Answer:

The function is increasing when x>1

The y-intercept is -2

Is because a function whose tangent turns up and down infinitely often near the origin.

lilavasa [31]3 years ago

3 0

Answer:

The second and third answers are correct.

Step-by-step explanation:

This is a upwards opening parabola. It has no maximum. It has a minimum at ( 1,-4).

The first answers is incorrect.

A function is increasing when it goes up. It is increasing from 1 to the right or when x>1 . It is also increasing from - infinity to 1 so x <1

The second answer is correct.

The y intercept is where it crosses the y axis. This is at the point x = -2

The third answer is correct.

All points on a graph are solutions to the function. If the function is set equal to zero, then this has two real zeros.

The fourth answer is false.

A constant rate of change means that it is linear. This is a parabola. A parabola increases as x^2 not x, so it is not a constant rate of change

The fifth answer is not correct.

The range is the values that y can take.This says y must be less than or equal to -4. That is not true. y≥ -4.

The sixth answer is not correct.

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Find the length of side x in simplest radical form with a rational denominator.

Hitman42 [59]

Answer:

$x =\sqrt 2$

Step-by-step explanation:

Given is a 30° - 60° - 90° triangle.

side x lie opposite to 30° angle

$\implies x = \frac{1}{2}\times \sqrt 8$

$\implies x = \frac{1}{2}\times 2\sqrt 2$

$\implies x =\sqrt 2$

6 0

2 years ago

If g(x)=3x+2, what is the value of g(0)?

kati45 [8]

Answer: g(0) = 2

Step-by-step explanation:

g(x)=3x+2

g(0)=3(0)+2

7 0

3 years ago

Identify whether the following equation has a unique solution, no solution, or infinitely many solutions.

KengaRu [80]

Answer:

Step-by-step explanation:

i can help

Step 1

4( − 11) = 15 − 4 Solving

Step 2

4( − 11) = 15 − 4 Simplify

15-4

-44=11

Answer

Unique solution

Hope this helps

4 0

3 years ago

In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º. Find the area of ABCD

dmitriy555 [2]

Answer:

The area of parallelogram ABCD is $78.42 \mathrm{in}^{2}$

Explanation:

Given:

AD = 12 in

$m \angle C=46^{\circ}$

$m \angle D B A=72^{\circ}$

To Find:

The area of parallelogram ABCD=?

Solution:

When we construct the parallelogram with the given data, we get a parallelogram formed by 12 cm as one side and an angle with 46 degrees.

The area of the parallelogram can be calculated by $a b * \sin (a n g l e)$

Substituting the value of a=12 we have

$\text { Area of parallelogram }=12 * \text { bsin } 46$

<u>To find the value of b, </u>

We know that area of a triangle can be expressed as,

$\text { Area of triangle }=(A b / 2) \sin (\text {angle})$

So,

$(12 * B D / 2) * \sin 46=(A B * B D / 2) * \sin 72$

Cancelling BD and 2 on both sides we get,

$12 * \sin 46=A B * \sin 72$

$A B=12 * \frac{\sin 46}{\sin 72}$

Therefore,

$b=\frac{12 \sin 46}{\sin 72}$

Substituting the value of b,

$=12 *\left(\frac{12 \sin 46}{\sin 72}\right) * \sin 46$

=78.42

So the area of the parallelogram is $78.42 \mathrm{in}^{2}$

6 0

4 years ago

Read 2 more answers

Please help and first right answer will be marked branliest

lakkis [162]

Answer:

a) 320 students

b) 25 students

Step-by-step explanation:

Number of 18-years old in the survey:

(We add all frequency points for each line)

0 + 30 + 20 + 60 + 70 + 40 + 60 + 40 + 0 = 320 students

Number of 18 year old spending between 25 and 35 minutes: 40 + 65 = 105

Number of 12 year old spending between 25 and 35 minutes: 30 + 50 = 80

105 - 80 = 25 students

5 0

4 years ago