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Morgarella [4.7K]
3 years ago
14

2x+3 less than or equal to 5

Mathematics
2 answers:
rjkz [21]3 years ago
6 0
2x+3 \leq 5 \\  \\ (2x+3)-3 \leq (5)-3 \\  \\ 2x \leq 2 \\  \\   \frac{2x}{2}  \leq  \frac{2}{2}  \\  \\ x \leq 1 \\  \\x=( -\infty} ,1]
ycow [4]3 years ago
3 0
2x + 3 ≤ 5
<u>      -3   -3</u>
      2x ≤ 2
      <u>2x</u> ≤ <u>2</u>
       2     2
       x =  1
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Somebody pls help me!!!
Setler [38]
<h3>Answer:  60 units</h3>

=====================================================

Explanation:

The similar red marks on the angles tell us those angles are congruent. So they are the same measure.

The sides opposite those congruent angles are the same length. This means AC = BC. This triangle is isosceles.

--------------

Solve for x

AC = BC

5x-8 = 2x+7 .... substitution

5x-8-2x = 7 ... subtract 2x from both sides

5x-2x = 7+8 ..... add 8 to both sides

3x = 15

x = 15/3 ... divide both sides by 3

x = 5

---------------

Use that x value to compute each side length

AB = 3x+11 = 3*5+11 = 15+11 = 26

BC = 2x+7 = 2*5+7 = 10+7 = 17

CA = 5x-8 = 5*5-8 = 25-8 = 17

Note how BC and CA are the same length (17 units). This helps confirm we have the right x value.

----------------

The last step is to add up all the side lengths to get the perimeter

perimeter of triangle = sum of all the sides

perimeter of triangle = side1 + side2 + side3

perimeter of triangle ABC = AB + BC + CA

perimeter of triangle ABC = 26 + 17 + 17

perimeter of triangle ABC = 60 units

4 0
2 years ago
Read 2 more answers
What is the solution of StartRoot x minus 4 EndRoot + 5 = 2?
Vlad1618 [11]

Answer:

13

Step-by-step explanation:

\sqrt{x-4}+5=2 \\\\\sqrt{x-4}=-3 \\\\x-4=9 \\\\x=13

Hope this helps!

6 0
3 years ago
Read 2 more answers
Explain how 9 x 4 can help you find 9 x 8
MrMuchimi
You can double the product of 9 and 4 to get to the product of 9 and 8
3 0
3 years ago
Read 2 more answers
Find the inverse of g(x)=4/x+2
yulyashka [42]
I think it’s g^-1(x)= -2x+4

The “^” means exponent to -1 is the exponent of g

Hope I’m right !!
7 0
2 years ago
PLEASE LOOK AT PHOTO! WHOEVER ANSWERS CORRECTLY I WILL MARK BRAINIEST!!
8_murik_8 [283]

Step-by-step explanation:

let m2 be x

then m1 = 4x

Since, m1+m2 = 115

therefore x + 4x = 115

5x = 115

x = 23

so , m2 = 23°

3 0
2 years ago
Read 2 more answers
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