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jok3333 [9.3K]
4 years ago
15

What is (x+3)(x+3) simplified

Mathematics
2 answers:
svp [43]4 years ago
7 0

Answer:

x² + 6x + 9

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

x(x + 3) + 3(x + 3) ← distribute both parenthesis

= x² + 3x + 3x + 9 ← collect like terms

= x² + 6x + 9

Svet_ta [14]4 years ago
5 0

Answer:

x² + 6x + 9

Step-by-step explanation:

If you multiply them together, they would result as an expand form but you can simplify it in its simplest terms.

(x + 3)(x + 3)

x² + 3x + 3x + 9

x² + 6x + 9

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Find the missing sides.
love history [14]

Answer:

Part 3)

x=6\ units

y=3\ units

Part 4) x=18\sqrt{2}\ units

Step-by-step explanation:

Part 3)

<em>step 1</em>

Find the value of x

In the right triangle of the figure we know that

The cosine of angle of 30 degrees is equal to the adjacent side to angle of 30 degrees divide by the hypotenuse

so

cos(30\°)=\frac{3\sqrt{3}}{x}

and remember that

cos(30\°)=\frac{\sqrt{3}}{2}

substitute

\frac{\sqrt{3}}{2}=\frac{3\sqrt{3}}{x}

Simplify

x=(2*3)=6\ units

<em>step 2</em>

Find the value of y

In the right triangle of the figure we know that

The sine of angle of 30 degrees is equal to the opposite side to angle of 30 degrees divide by the hypotenuse

so

sin(30\°)=\frac{y}{x}

and remember that

sin(30\°)=\frac{1}{2}

substitute

\frac{1}{2}=\frac{y}{6}

y=6/2=3\ units

Part 4) Find the value of x

Applying the Pythagoras Theorem

x^{2} =18^{2} +18^{2} \\ \\x^{2} = 324+324\\ \\x^{2}=648\\ \\x=\sqrt{648}\ units

Simplify

x=18\sqrt{2}\ units

6 0
3 years ago
Please help me really fast! : )
victus00 [196]
Slope is always behind the variable x. 
Slope is 9. 
Y-intercept is after the variable x. 
Y-intercept is -7
5 0
3 years ago
Read 2 more answers
In physics, it is important to use mathematical approximations. for instance, in a small angle approximation, tanα ∼ sin α . fin
siniylev [52]
Note that x is measured in radians.
The percent difference or error between sin(x) and tan(x) is calculated as 
d = 100( \frac{|sin(x)-tan(x)|}{sin(x)} )

We want this percent difference to be less than 10.4%.
Because tan(x) > sin(x) for small values of x, define
f(x) =  \frac{tan(x)-sin(x)}{sin(x)}= 0.104 \\ or \\ sec(x) - 1  = 0.104 \\ sec(x) = 1.104

From the calculator, obtain
sec⁻¹ 1.104 = 0.4375

Answer:  x = 0.4375 radians

5 0
3 years ago
Apple estimates that 2.8 million square feet of the building is used for office space. Is their estimate reasonable? Below is th
Virty [35]

The estimate that 2.8 million square feet of the building is used for office space is not reasonable

<h3>How to determine the true statement?</h3>

From the plan, the width of the building is:

Width = 230 feet

The building has a circular area, and it has four floors

So, the estimate of the building area is:

Area= 4πR²

So, we have:

Area= 4 * 3.14 * 230²

Evaluate

Area= 664424

The above value cannot be approximated to 2.8 million

Hence, the estimate used for office space is not reasonable

Read more about areas at:

brainly.com/question/24487155

#SPJ1

7 0
2 years ago
21 = -2p - 5 what number does p represent?
svetoff [14.1K]

Answer: P represents -13

Step-by-step explanation:

Since a negative x negative + positive, we know that p has to be a negative.

For me, I added both 21 and -5 (though I made it into a positive), and got 26.

What number times -2 is positive 26?

So, you divide 26/-2, which then becomes -13.

Thus, p=-13 :)

4 0
4 years ago
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