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hram777 [196]
3 years ago
7

Find the value of x plz i will mark brainliest

Mathematics
2 answers:
irinina [24]3 years ago
4 0

Answer:

x=30

Step-by-step explanation:

Angle sum in a triangle=180

x+3x+2x=180

6x=180

x=30

Scorpion4ik [409]3 years ago
4 0

Answer:

x°+3x°+2x°=180°[by angle sum property]

6x°=180°

x°=180°/6

x°=30°

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Using a place value chart which has more tens in it , 10020 or 20010
Luda [366]
If we use the place value chart, 10020 and 20010 will be further dissected based on place values. At first look, 20010 seems to have more tens and that is fact; but this method will show us that it is otherwise so follow the solution below carefully:

Employing PLACE VALUE CHART:

For 20010:
*10000 <--- Ten-thousands place.
*10000 <--- Ten-thousands place.
*10 <--- Tens place.
Add these numbers and you will get: 20010. 20010 has two ten-thousands place and one tens place.

For 10020
*10000 <--- Tens-thousands place.
*10 <--- Tens place.
*10 <--- Tens place.
Add these numbers and you will get: 10020. 10020 has one ten-thousands place and two tens place.

Therefore, there are more tens in 10020 than in 20010.
3 0
3 years ago
Find the length of the curve x=e^t e^{-t},\;\;y=5-2t,\;\;0 \le t \le 3.
Oksana_A [137]
\begin{cases}x(t)=e^t+e^{-t}\\y(t)=5-2t\end{cases}\implies\begin{cases}x'(t)=e^t-e^{-t}\\y'(t)=-2\end{cases}

The length of the curve is given by the integral

\displaystyle\int_0^3\sqrt{(e^t-e^{-t})^2+(-2)^2}\,\mathrm dt

Expand and rewrite the integrand:

(e^t-e^{-t})^2+(-2)^2=e^{2t}+2+e^{-2t}
=e^{-2t}(e^{4t}+2e^{2t}+1)
=e^{-2t}(e^{2t}+1)^2
\implies\sqrt{(e^t-e^{-t})^2+(-2)^2}=\dfrac{e^{2t}+1}{e^t}

Now the integral is

\displaystyle\int_0^3\dfrac{e^{2t}+1}{e^t}\,\mathrm dt=\int_0^3(e^t+e^{-t})\,\mathrm dt
=2\displaystyle\int_0^3\cosh t\,\mathrm dt
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=2\sinh 3
7 0
3 years ago
Find the discount on a $15 T-shirt. It is on sale for 10% off.
Lelu [443]

Answer:

$13.50 (discount price)

$1.50 (discount amount)

Step-by-step explanation:

$15 x 10% =

$15 x 0.1 = $1.50

$15 - $1.50 = $13.50

3 0
3 years ago
Read 2 more answers
What is the slope and y-intercept for the line represented by this equation? 5x+13y= -13
notsponge [240]
5x+13y=-13

13y=-5x-13

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3 years ago
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What is the solution to this equation?
MAXImum [283]

Answer:

B. s=8

Step-by-step explanation:

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3 years ago
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