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Rudik [331]
2 years ago
11

A) What type of triangle is triangle ABC? b) Give reasons for your answer. I just need B​

Mathematics
1 answer:
loris [4]2 years ago
5 0

Answer:

isosceles triangle

Step-by-step explanation:

line CB is the transversal for the two parallel lines, so angle CBA and angle BCE are the same.

since a straight line is 180 degrees, we can solve for angle BCA by subtracting the other angles on the line from 180

180-80-50 = 50

since triangles have 180 degrees, we can solve for the last angle by subtracting the angles we already know from 180

180-80-50

two of the angles are the same, making this an isosceles triangle

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6) 6n+ 3 = 3(-7n + 1)<br> what did you guys get for the answer?
Allushta [10]

Answer:

n=0

Step-by-step explanation:

Clear parenthesis w/ distribution:

3(-7n+1)=-21n+3

Move everything over to one side:

6n+3=-21n+3

6n=21n                                                   Subtract the 3 on the right.

-15n=0                                                                      Subtract the 21.

n=0                                                                              Divide the -15.

5 0
3 years ago
Read 2 more answers
7. Which coordinate lies in the solution set for
Nana76 [90]

Answer:

The only point (0,0) lies inside the shaded region and hence it gives a solution for the set of inequalities.

Step-by-step explanation:

See the graph attached to this question.

The solution of the set of inequalities is given by the shaded region on the graph.

Now, the point (0,5) is outside this shaded region, hence it can not be the solution.

The point (3,0) also is outside this shaded region, hence it can not be the solution.

The point (-3,0) also is outside this shaded region, hence it can not be the solution.

Now, the only point (0,0) lies inside the shaded region and hence it gives a solution for the set of inequalities. (Answer)

6 0
2 years ago
Which inequality represents all values of x for which the product below is<br> defined?<br> 20 pts
timama [110]

Step-by-step explanation:

√a is defined only when a >= 0.

Therefore for √4x * √(x + 2) to be defined, both 4x and x + 2 must be non-negative.

When 4x >= 0, x >= 0.

When x + 2 >= 0, x >= -2.

x >= 0 and x >= -2, therefore we have x >= 0. (D)

6 0
3 years ago
Pls help i will get you 15 poins help me this plzzzzz
Gnom [1K]

Answer:

answer is 1 5/12 my sister said she did the quizz and helped me answer this

Step-by-step explanation:

have a good day!!

8 0
3 years ago
Read 2 more answers
The article on the next page from the San Francisco Chronicle, January 27, 1996, describes very serious problems of subsidence,
Mekhanik [1.2K]

Answer:

246.3%

the complete question is found in the attached document

Step-by-step explanation:

1st step:

using 1936 data,

w1= 356% = 3.56(356/100) , H= 79 feet

specific gravity = 2.65

Sₓ= 100%= 1

initial void ratio(e₀)= (w1 x specific gravity)/Sₓ

=3.56 x 2.65/1 = 9.434

2nd step

using 1996 data

ΔH= 22ft

ΔH/H = Δe/(1 + e₀)

22/79 = Δe/(1+9.434)

0.278=Δe/10.434

Δe= 0.278 x 10.434

Δe= 2.905

Δe= e₀ - eₓ

eₓ= e₀-Δe

eₓ= 9.434 - 2.905

eₓ= 6.529

3rd step

calculating water content in 1996

eₓ =6.529, specific gravity= 2.65, Sₓ= 100%

W2 X 2.65 = 1 x 6.529

w2 = 6.529/2.65 = 2.463 = 246.3%

6 0
3 years ago
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