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2 years ago

Please help me answer this ASAP

Mathematics

1 answer:

Alex Ar [27]2 years ago

7 0

Answer: 7.2

Step-by-step explanation:

$\tan 29^{\circ}=\frac{4}{CD}\\CD \tan 29^{\circ}=4\\CD=\frac{4}{\tan 29^{\circ}} \approx {7.2}$

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Consider these functions

vitfil [10]

9514 1404 393

Answer:

C. 3x² +24

Step-by-step explanation:

Use the given function definitions and simplify.

$g(f(x))=g\left(\dfrac{1}{3}x^2+4\right)\\\\=9\left(\dfrac{1}{3}x^2+4\right)-12\\\\=3x^2+36-12\\\\\boxed{g(f(x))=3x^2+24}\qquad\textbf{matches C}$

5 0

3 years ago

Urgent help needed...............

andreyandreev [35.5K]

Answer:

Option b is correct

$\{x | x \neq \pm 7, x\neq 0\}$ .

Step-by-step explanation:

Domain is the set of all possible values of x where function is defined.

Given the function:

$h(x) = \frac{9x}{x(x^2-49)}$

To find the domain of the given function:

Exclude the values of x, for which function is not defined

Set denominator = 0

$x(x^2-49) = 0$

By zero product property;

$x = 0$ and $x^2-49= 0$

⇒x = 0 and $x^2 =49$

⇒x = 0 and $x = \pm 7$

Therefore, the domain of the given function is:

$\{x | x \neq \pm 7, x\neq 0\}$

7 0

3 years ago

Read 2 more answers

What is the lcm of 1/3 and 2/5

katen-ka-za [31]

I'm not really sure but I think it is 4:(

7 0

3 years ago

A pool is 50 m long 15 m wide and 3 m deep what is the volume of the pool

AnnZ [28]

Answer:

Step-by-step explanation:

volume of the pool =50×15×3=2250 m³

4 0

4 years ago

Which of the following sets could be the sides of a right triangle?{2, 3, square root of 13} {5, 5, 2, square root of 10} { 5, 1

MA_775_DIABLO [31]

Answer:

{2, 3, √13}

Step-by-step explanation:

In a right triangle, the sum of the squares of the two shorter sides equals the square of the third side (Pythagoras).

Let's check each set of sides in turn.

A. {2, 3, √13}

2² + 3² = 4 + 9 = 13

(√13)² = 13

This is a right triangle.

B. {5, 5, 2, √10}

This is a quadrilateral (four sides).

C. {5, 12, 15}

5² + 12² = 25 +144 = 169

15² = 225

This is not a right triangle.

5 0

3 years ago