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german
3 years ago
8

Can you help me it’s confusing

Mathematics
1 answer:
mojhsa [17]3 years ago
6 0

Answer:

x=35

Step-by-step explanation:

You just add up all of the equations to equal 180

X+20+x+8+2x+12=180

4x+40=180

4x=140

x=35

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-3x+4y=-10 in y=mx+b
belka [17]
Y = 3/4x -5/2

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8 0
3 years ago
Find the exact value of tan 0
allsm [11]
Tan (0) is equal to 0
Sin (0) = 0
Cos (0) = 1

Tan = Sin/Cos
That means that Tan (0) = 0/1 or 0
3 0
3 years ago
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Mai-Li has 5 1/8 yd of material her new shirt will take 2 3/4 yd how much material will she have left after the skirt is made.
AysviL [449]
The correct answer is C. 2 3/8 yd.


I hope that helped you! c:
5 0
4 years ago
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Plz help me plz!!!!!!​
Mice21 [21]

Answer:

6. was Narbada alienated ...?

7. did Pratima make ...?

8. did Zayasha wander ...?

9. Did Sachin behave as if...?

10. did susan look ...?

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Step-by-step explanation:

yes/ no question:

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4 0
3 years ago
Sabendo que "K" satisfaz a equação {2(k-8) + 3(-k+1) = -4k +11} Os valores reais de x que satisfazem a equação 15x² - kx + 1 = 0
erastova [34]

Answer:

D) 1/5 e 1/3

Step-by-step explanation:

You have the following quadratic equation:

15x^2-kx+1=0           (1)

In order to find the values of x that are solution to the equation (1), you first find the solution for k in the following equation:

2(k-8)+3(-k+1)=-4k+11\\\\2k-16-3k+3=-4k+11\\\\2k-3k+4k=11+16-3\\\\3k=24\\\\k=8

Next, you replace the previous value of k in the equation (1) and you use the quadratic formula to find the roots:

15x^2-8x+1=0\\\\x_{1,2}=\frac{-(-8)\pm \sqrt{(-8)^2-4(15)(1)}}{2(15)}\\\\x_{1,2}=\frac{8\pm 2}{30}\\\\x_1=\frac{1}{5}\\\\x_2=\frac{1}{3}

Then, the roots of the equation (1) are

D) 1/5 e 1/3

5 0
4 years ago
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