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Tatiana [17]
3 years ago
5

3. Triangle ABC has angle measures as noted below. Please note this triangle is not drawn to scale, and the longest leg of the f

igure may not be the longest leg of the actual triangle.
You will need to use the expressions for the angles given below.
A) 2(x + 15) B) 3x+10 C) 5x
(a) Identify the angle relationship and setup your equation with the given expressions.
(b) What is the value of x? Show your work.
(c) What is the measure of angle A, B, & C? Show your work and make sure to identify which is which.

Mathematics
1 answer:
melisa1 [442]3 years ago
5 0

Answer:

I only know B and C

Step-by-step explanation:

Part B)

2 (x+15) + 3x + 10+ 5x = 180        2x + 30 + 3x + 10 +5x = 180           10 +40 = 180

- 40 -40            10x divided by 10 = 140 divided by 10             x= 14

Part C)

A = 2 (x + 15) = 2 (14 + 15) = 2 * 29 = 58 degrees

< B = 3 x + 10 = 3 * 14 + 10 = 52 degrees

< C = 5 x = 5 * 14 = 70 degrees

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What is the solution to the inequality? -2/3(2x - 1/2) ≤ 1/5x - 1 Express your answer in interval notation.
almond37 [142]

ANSWER


-\frac{2}{3}(2x-\frac{1}{2})\le \frac{1}{5}x-1


Multiply through by LCM of 15


(15) \times -\frac{2}{3}(2x-\frac{1}{2})\le 15(\frac{1}{5}x-1)





-10(2x-\frac{1}{2})\le 3x-15



Expand brackets to obtain,



-20x+5\le 3x-15



Group like terms



15+5\le 20x+3x




20\le 23x


\frac{20}{23}\le x




x\ge \frac{20}{23}


In interval form it is written as


[\frac{20}{23}, \infty)







8 0
3 years ago
Recently, Caroline purchased a BBQ grill to use this summer. The cost of the grill was $390 and sales tax
Dimas [21]

hi

Sales  taxes  = 390 *0.074 = 28.86  

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7 0
2 years ago
3. Find angle q.<br> A) 90 <br> B)116<br> C)123<br> D)130
Inga [223]

Answer:

C

Step-by-step explanation:

because 180 - 58

remember the quadrilateral is between the circumference

5 0
3 years ago
In a parallelogram if AB = 3x + 2y and AB = 30 what is the value of x and y
Sergeeva-Olga [200]
We can put the two equations together with substitution, and we get

3x + 2y = 30

Now we have a single equation in two variables, so we don't have enough information to solve for both x and y.
5 0
2 years ago
The soccer club has planned a trip to a tournament. The cost of the van is $192. When 2 students who are not members of the club
Anon25 [30]
Let
N--------> <span>members of the club

we know that
($192/(N+2)=3.20
192=(N+2)*3.20
3.20*N+6.40=192
3.20*N=192-6.40
N=185.60/3.20
N=58

the answer is
58</span>
3 0
3 years ago
Read 2 more answers
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