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harina [27]
3 years ago
8

AB = 5x -9; BC= -2x + 12

Mathematics
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

X=-3

Step-by-step explanation:

5x - 9

-2x + 12

(+) (-)

7x = -21

X= -3

plz mark ice bear as Brainliest

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6. m A = 8x - 2, m B = 2x - 8, and m2 C = 94 - 4x. List the sides of A ABC in order from shortest to
Oduvanchick [21]

Given:

In triangle ABC, m∠A=(8x-2)°, m∠B=(2x-8)° and m∠C=(94-4x)°.

To find:

The sides of the triangle ABC in order from shortest to  longest.

Solution:

In triangle ABC,

m\angle A+m\angle B+m\angle C=180^\circ              (Angle sum property)

(8x-2)^\circ+(2x-8)^\circ+(94-4x)^\circ=180^\circ

(6x+84)^\circ=180^\circ

6x+84=180

6x=180-84

6x=96

Divide both sides by 6.

x=\dfrac{96}{6}

x=16

Now,

m\angle A=(8(16)-2)^\circ

m\angle A=(128-2)^\circ

m\angle A=126^\circ

Similarly,

m\angle B=(2(16)-8)^\circ

m\angle B=(32-8)^\circ

m\angle B=24^\circ

And,

m\angle C=(94-4(16))^\circ

m\angle C=(94-64)^\circ

m\angle C=30^\circ

In a triangle the smaller angle has shorter opposite side and larger angle has longer opposite side.

24^\circ

m\angle B

AC

List the sides of triangle ABC in order from shortest to  longest is AC:AB:BC.

Therefore, the correct option is A.

6 0
3 years ago
X + 4 = 3x + 2.<br> Help with answer
Len [333]

Answer:

x=1

Step-by-step explanation:

1+4=5

3x1+2=5

8 0
3 years ago
Read 2 more answers
Please help me thank you.
7nadin3 [17]
For this question, we want to match the width of the smaller rectangle with the width of the larger rectangle, and we want to match the length of the smaller rectangle with the length of the larger rectangle.

Thus, we have two possible answers.

\frac{4}{8} =  \frac{12}{24}
OR
\frac{8}{4} =  \frac{24}{12}

Thus, B is our answer.
5 0
4 years ago
A tandem bike means that it has _seats
lyudmila [28]

Answer:

a total of two seats on the bike

3 0
3 years ago
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What is 2x + 8y explained
SVEN [57.7K]

Answer:

2x + 8y = 16

Step-by-step explanation:

Subtract 2x from both sides of the equation.

8y = 16 − 2x

Divide each term by 8 and simplify.

3 0
4 years ago
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