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Licemer1 [7]
3 years ago
8

Its my birthday today= Free points!

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

happy birthday

Step-by-step explanation:

thank you

Ganezh [65]3 years ago
3 0

Answer:

Thank you this is awesome..happy birthday your amazing

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Simplify the expression by using a double-angle formula 1-2sin^2(3theta)
NeTakaya
We know that:

\cos(2x)=1-2\sin^2(x)

Here x=3\theta so:

1-2\sin^2(3\theta)=\cos(2\cdot3\theta)=\cos(6\theta)
5 0
4 years ago
the length of the longer leg of a right triangle is 3 ft more than three times the length of the shorter leg. the length of the
Ulleksa [173]

with the pythagorean theorem

\begin{gathered} (4+3x)^2=x^2+(3+3x)^2 \\ 16+24x+9x^2=x^2+9+18x+9x^2 \\ 16+24x+9x^2=10x^2+18x+9 \\ 16+24x+9x^2-9=10x^2+18x+9-9 \\ 9x^2+24x+7=10x^2+18x \\ 9x^2+24x+7-18x=10x^2+18x-18x \\ 9x^2+6x+7=10x^2 \\ 9x^2+6x+7-10x^2=10x^2-10x^2 \\ -x^2+6x+7=0 \end{gathered}

using the formula of the quadratic equation

\begin{gathered} x_{1,\: 2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ x1=\frac{-6+\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=-1 \\ x2=\frac{-6-\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=7 \end{gathered}

the length cannot be negative, therefore x=7

length of the shorter leg is: 7ft

length of the longer leg is: 3+3(7)= 24ft

length of the hypotenuse is: 4+3(7)= 25ft

5 0
1 year ago
Explanation would be appreciated, last word is indicated.​
iVinArrow [24]

Answer:

AC = 28

Step-by-step explanation:

Ok, we know that:

Points A, B, and C are collinear.

Point B is between A and C.

We want to find the length AC (distance between A and C), if we know that:

AB = 16

BC = 12

Ok, knowing that B is between the other points, we know that:

AB + BC

defines the total length of the segment that connects the 3 points.

Thus, if we define this segment as a length, we only use the endpoints, A and C.

Then we have that:

AB + BC = AC

now we can solve this:

16 + 12 = AC

28 = AC

7 0
3 years ago
What is the area of a circular wading pool with a radius of 50 cm?
UNO [17]

Answer:

B. 7854.0 cm2

The area of a circle is given by A= π r^{2} where r is the radius

So A= π50^{2} = 7854.0 cm2

7 0
3 years ago
HEy guys i need some help <br> KATIE I SWEAR TO GOD IF YOU REMOVE THIS I AM SUEING BRAINLY!
emmainna [20.7K]

Answer:

it's blurry

Step-by-step explanation:

4 0
4 years ago
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