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2 years ago

Given h(x)= x^2-4 what is h(6)? A.32 B.-4 C.0 D.77

Mathematics

2 answers:

Kisachek [45]2 years ago

5 0

The answer to it is a) 32

maksim [4K]2 years ago

5 0

Answer:

A.32

Step-by-step explanation:

h(x)=x^2-4

h(6)=6^2-4

h(6)=36-4

h(6)=32

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2) Find the GCF of 35 and 28

Murrr4er [49]

Answer: 7

Step-by-step explanation:

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3 years ago

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Find the trigonometric form of the number 3 + √3i.

sattari [20]

Any complex number $z$ can be written in trigonometric form as

$z = |z| e^{i\arg(z)} = |z| \left(\cos(\arg(z)) + i \sin(\arg(z))\right)$

where $|z|$ is the modulus of $z$ and $\arg(z)$ is its argument, i.e. the angle $z$ makes with the positive real axis in the complex plane.

We have

$|z| = \sqrt{3^2 + \left(\sqrt3\right)^2} = \sqrt{12} = 2\sqrt3$

and

$\arg(z) = \tan^{-1}\left(\dfrac{\sqrt3}3\right) = \tan^{-1}\left(\dfrac1{\sqrt3}\right) = \dfrac\pi6$

Then

$3 + \sqrt3 \, i = \boxed{2\sqrt 3 \left(\cos\left(\dfrac\pi6\right) + i \sin\left(\dfrac\pi6\right)\right)}$

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1 year ago

I need some help with this

masya89 [10]

Answer:

A, C, D

Step-by-step explanation:

Consider triangles NKL and NML. These triangles are right triangles, because

$m\angle K=m\angle M=90^{\circ}$

In these right triangles:

$\overline{NL}\cong \overline {NL}$ - reflexive property;
$\angle KLN\cong \angle MLN$ - given

Thus, triangles NKL and NML by HA postulate. Congruent triangles have congruent corresponding parts, so

$\overline{KN}\cong \overline{NM}\\ \\\overline{KL}\cong \overline{LM}\ [\text{option D is true}]$

Since

$\overline{KN}\cong \overline{NM},$

then

$7x-4=5x+12\\ \\7x-5x=12+4\\ \\2x=16\\ \\x=8\ [\text{option A is true}]\\ \\MN=KN=7\cdot 8-4=56-4=52\ [\text{option C is true}]$

Option B is false, because KN=52 units.

Option E is false, because LN is congruent KN, not LM

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2 years ago

Can someone PLEASE help me with THIS QUESTION

s2008m [1.1K]

Answer:

3.5

Step-by-step explanation:

you will go like sum of frequency multiplied by score divided by sum of frequency

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2 years ago

Is a function that is not continuous

stepan [7]

It appears that your answer contains either a link or inappropriate words. Please correct and submit again!

Answer:

See below. The answer is incomplete, I couldn't post it.

Step-by-step explanation:

Considering a function $f$ , it is said to be discontinuous when it has a hole or breaks, it means places where $f(x)$ cannot be evaluated. For example, when the denominator equals to 0, it is not defined.

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3 years ago