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IgorC [24]
4 years ago
8

Help pls fact and give me the steps pls -26a-3+20a=27

Mathematics
2 answers:
snow_lady [41]4 years ago
7 0

Answer:

a =5

Step-by-step explanation:

-26a-3+20a=27

Combine like terms

-6a -3 = 27

Add 3 to each side

-6a -3+3 =27+3

-6a = 30

Divide each side by -6

-6a/-6 = 30/-6

a =5

Gemiola [76]4 years ago
6 0

Answer:

a=-5

Step-by-step explanation:

-6a-3=27

-6a=30

a=-5

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How many different triangles can you make if you are given these two lengths for sides?
kykrilka [37]

Answer:

Infinitely many triangles.

Step-by-step explanation:

Given the lengths of two sides are 8 inches and 10 inches.

Let's assume third side = x inches.

Using the Triangle Inequalities given as follows:-

1. a+b > c,

2. b+c > a,

3. c+a > b.

Using the lengths given in the problem, we can write:-

1. x+8 > 10 ⇔ x > 10-8 ⇔ x > 2.

2. x+10 > 8 ⇔ x > 8-10 ⇔ x > -2.

3. 8+10 > x ⇔ x < 18.

So, the solution set is 2 < x < 18. It means third side can take any value in interval (2, 18).

Hence, there are infinitely many triangles.

3 0
4 years ago
Read 2 more answers
What are the possible values of x in 2x^2-8=10
Dimas [21]

Answer:

3, -3

Step-by-step explanation:

4 0
3 years ago
This is uhh due by 8 tommorow mornin please help me
Ira Lisetskai [31]

1 Simplify

1

3

x

3

1

​

x to

x

3

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x

​

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x

3

+

5

≤

−

4

3

x

​

+5≤−4

2 Subtract

5

5 from both sides.

x

3

≤

−

4

−

5

3

x

​

≤−4−5

3 Simplify

−

4

−

5

−4−5 to

−

9

−9.

x

3

≤

−

9

3

x

​

≤−9

4 Multiply both sides by

3

3.

x

≤

−

9

×

3

x≤−9×3

5 Simplify

9

×

3

9×3 to

27

27.

x

≤

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27

x≤−27

I hope this help you

6 0
3 years ago
A 12- foot ladder that is leaning against a wall makes a 75.5 degree angle with the level ground
viktelen [127]

Answer:option C is the correct answer.

Step-by-step explanation:

When the ladder leans against the wall, it forms a right angle triangle with the wall. The length of the ladder becomes the hypotenuse of the right angle triangle.

Since the length of the ladder is 12 foot, then

Hypotenuse = 12 foot

The angle formed by the ladder with the ground is 75.5 degrees. Therefore, the height, y which is the distance from the point where the ladder touches the wall to the foot of the wall becomes the opposite side. It would be determined by applying trigonometric ratio

Sin θ = opposite side/hypotenuse

Sin 75.5 = y/12

6 0
3 years ago
Is it C ? am I right
sveta [45]

Answer:

You are right!!

Step-by-step explanation:

- 8 = 4 x (- 2)

- 16 = 4 x (- 4)

- 24 = 4 x (- 6)

8 0
4 years ago
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