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nadya68 [22]
3 years ago
10

Please help. don’t understand :((

Mathematics
2 answers:
Greeley [361]3 years ago
8 0

Answer:

Step-by-step explanation:

place x = 19

f(19) = 3 / 19 + 2 - Sqrt 21 - 3

= 3/21 - 4

= - 81/21

= - 27/7

nalin [4]3 years ago
8 0

Answer:

f(19) = - \frac{27}{7}

Step-by-step explanation:

Given

f(x) = \frac{3}{x+2} - \sqrt{x-3}

To evaluate f(19), substitute x = 19 into f(x) , that is

f(19) = \frac{3}{19+2} - \sqrt{19-3}

       = \frac{3}{21} - \sqrt{16}

       = \frac{1}{7} - 4

       = \frac{1}{7} - \frac{28}{7}

       = - \frac{27}{7}

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If line t is a transversal of lines l and m, name the angle relationship of the given angle pairs.
Ghella [55]

Answer:

\angle 1\ and\ \angle 3 are corresponding angles and are congruent to each other.

\angle 8\ and\ \angle 4 are alternate exterior angles and thus congruent to each other.

\angle 2\ and\ \angle 3 are interior angles on the same side, and they are supplementary(sum=180°).

Step-by-step explanation:

Given:

Line l\parallel m

Line t is traversal.

By angle properties we can name the angle relationship of given angle pairs.

\angle 1\ and\ \angle 3 are corresponding angles and are congruent to each other.

\angle 8\ and\ \angle 4 are alternate exterior angles and thus congruent to each other.

\angle 2\ and\ \angle 3 are interior angles on the same side, and thus they are supplementary.

8 0
3 years ago
What is absolute value
jeka94

Absolute value is the distance between a point and 0. Absolute value is always positive. When you're writing numbers in absolute value, make sure you add:

| |

The absolute value of a negative number is also positive. For example:

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3 0
3 years ago
Give that m/_ y=39, find the measures of angles a and b
Amanda [17]

Answer:

  ∠a = 39°

  ∠b = 129°

Step-by-step explanation:

Vertical angles are congruent. An exterior angle of a triangle is equal to the sum of the remote interior angles.

<h3>Application</h3>

Angle y and angle 'a' are vertical angles, so congruent.

  ∠a = ∠y = 39°

The angle marked 'b' is an exterior angle to the triangle. Its remote interior angles are 'a' and the one marked 90°.

  ∠b = ∠a +90° = 39° +90°

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8 0
1 year ago
Read 2 more answers
HELP AND GIVE ME DA CORRECT ANSWER OR I REPORT YOU!!!
Fiesta28 [93]
Answer this is 264 Celsius -200 over 90°C -0.36°C five over8°C read and expression I hope this helps
7 0
2 years ago
PLEASE ANSWERRRRRRRRRRRRRRRRR
zhannawk [14.2K]

The graph suggests that the two lines meet at (3,6)

If this is true, that point must belong to both lines.

To check this, plug x=3 in both equations, and you must get y=6 once you simplifiy all the numbers.

In the first equation we have

5\cdot 3-3y= -3 \iff 3y=15+3\iff 3y=18 \iff y=6

In the second,

3+3y=21 \iff 3y=18\iff y=6

6 0
3 years ago
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