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GarryVolchara [31]
4 years ago
14

If the 3 angles of the triangle are given below what is the value of x? Angle 1=5x angle2 =3x angle3=x

Mathematics
1 answer:
REY [17]4 years ago
3 0
In a triangle, the three interior angles always add to 180°

5х + 3х + х = 180
9х = 180
х = 180 : 9
х = 20
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three fourths of a spinach casserole is leftover after Sam has lunch .Jackie and Alicia each take 1/2 of the leftover casserole
scoray [572]
Casserole left over by Sam = 3/4 of the whole

Casserole received by Jackie and Alicie = 1/2 x 3/4 = 3/8 of the whole

Portion eaten by Jackie = 2/3 x 3/8 = 1/4 of the whole
6 0
4 years ago
(PLS ANWSER FAST) Kyle has a storage box in the shape of a rectangular prism. the box has a square base with sides that are 3 ft
Dennis_Churaev [7]

V = length x width x height

In this problem:

length = 3

width = 3

height = 6

V = 3 x 3 x 6

V = 54 ft^3

Hope this helps!! :)

7 0
3 years ago
The price of a technology stock was $9.74 yesterday. Today, the price fell to $9.67. Find the percentage decrease. Round your an
agasfer [191]
% change = (new value - old value)/(old value) * 100%
.. = (9.67 -9.74)/9.74 * 100%
.. = -0.07/9.74 * 100%
.. = -0.7%

The decrease is 0.7%.
5 0
3 years ago
PLEASEEEEEEEEEEEE HELPPPPPPPPPPP 9 + 6x - 5 =
blondinia [14]

Answer:

6x +4

Step-by-step explanation:

9 + 6x - 5 =

Combine like terms

6x +4

8 0
3 years ago
Find the center of mass of the wire that lies along the curve r and has density =4(1 sin4tcos4t)
dolphi86 [110]

The mass of the wire is found to be 40π√2 units.

<h3>How to find the mass?</h3>

To calculate the mass of the wire which runs along the curve r ( t ) with the density function δ=5.

The general formula is,

Mass = \int_a^b \delta\left|r^{\prime}(t)\right| d t

To find, we must differentiate this same given curve r ( t ) with respect to t to estimate |r'(t)|.

The given integration limits in this case are a = 0, b = 2π.

Now, as per the question;

The equation of the curve is given as;

r(t) = (4cost)i + (4sint)j + 4tk

Now, differentiate this same given curve r ( t ) with respect to t.

\begin{aligned}\left|r^{\prime}(t)\right| &=\sqrt{(-4 \sin t)^2+(4 \cos t)^2+4^2} \\&=\sqrt{16 \sin ^2 t+16 \cos ^2 t+16} \\&=\sqrt{16\left(\sin t^2+\cos ^2 t\right)+16}\end{aligned}

Further simplifying;

\begin{aligned}&=\sqrt{16(1)+16} \\&=\sqrt{16+16} \\&=\sqrt{32} \\\left|r^{\prime}(t)\right| &=4 \sqrt{2}\end{aligned}

Now, use integration to find the mass of the wire;

       \begin{aligned}&=\int_a^b \delta\left|r^{\prime}(t)\right| d t \\&=\int_0^{2 \pi} 54 \sqrt{2} d t \\&=20 \sqrt{2} \int_0^{2 \pi} d t \\&=20 \sqrt{2}[t]_0^{2 \pi} \\&=20 \sqrt{2}[2 \pi-0] \\&=40 \pi \sqrt{2}\end{aligned}

Therefore, the mass of the wire is estimated as 40π√2 units.

To know more about density function, here

brainly.com/question/27846146

#SPJ4

The complete question is-

Find the mass of the wire that lies along the curve r and has density δ.

r(t) = (4cost)i + (4sint)j + 4tk, 0≤t≤2π; δ=5

5 0
1 year ago
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