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disa [49]
3 years ago
13

Add - (remember only like terms can be combined when add/subtract) (3x + 5) + (2x - 8)

Mathematics
1 answer:
Afina-wow [57]3 years ago
7 0

Answer:

5x-3

Step-by-step explanation:

(3x + 5) + (2x - 8)

3x+5+2x-8

Bringing the like terms together,

3x+2x+5-8

5x-3

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Pythagorean theorem 19^2 + 21^2=x^2
alexira [117]

Answer:

x = 28.32 units.

Step-by-step explanation:

Given:

Longer leg = 21

Shorter leg = 19

Hypotenuse = x

To Find:

Hypotenuse = x = ?

Solution:

Pythagoras Theorem States that

(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}

Substituting of the given value above equation we get

x^{2} =21^{2}+ 19^{2}\\ \\x^{2}=441 + 361\\\\x^{2}=802\\ \therefore x=\pm\sqrt{802} \\\textrm{as x cannot be negative}\\\therefore x=\sqrt{802}\\\\\therefore x=28.319\ units\\\therefore x=28.32\ units

7 0
3 years ago
Read 2 more answers
For how many tickets is the cost the same for club members and non-members?
WITCHER [35]
If its a parent then the answer would be 60
3 0
3 years ago
On a sunny day, a flag pole and its shadow form the sides of a right triangle. if the hypotenuse is 35 meters long and the shado
Triss [41]
We can use Pythagorean's Theorem in order to find the remaining side length
a^2+b^2=c^2
Let a be the shadow length
Let b be the height of the flagpole
Let c be the hypotenuse 
28^2+b^2=35^2
784+b^2=1225
b^2=1225-784
b^2=441
b=√441
b=21
Therefore the flagpole is 21 meters tall.
Hope this helps!
 
 
3 0
3 years ago
The ratio of collectible coins Juanita owns to coins that Elia owns is 3:1. Elia has 32 coins. How will the ratio of Juanita’s c
yaroslaw [1]
Hi there Maebe, since the ratio is 3:1 your answer is 96.

The ratio 3:1 is just saying Juanita has 3 times whatever Elita has. So, Elita’s 32 times 3 equals 96. :) I hope I’ve helped you. Please give me feedback if you need more help understanding!
7 0
3 years ago
12) 3 + x + 2x <br>A) 3 + 3x C) 3 + 7x <br>B) -17x D) 3 + 17x​
Alona [7]

A) 3 + 3x is the answer.

.. ..

5 0
3 years ago
Read 2 more answers
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