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Norma-Jean [14]
3 years ago
13

Solve. 2a + 3b = 5 b=a5 a = 4 b = -1 a = 4 b=1

Mathematics
2 answers:
babunello [35]3 years ago
6 0
1 = 20 false
5 = 5 true
nikklg [1K]3 years ago
5 0

Answer:

5 = 5    True

1 = 20   False

Step-by-step explanation:

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Find a in the figure below and place the value in the empty box
AleksAgata [21]

Answer:

a = 12m

Step-by-step explanation:

In order to solve this problem we will need to know the Pythagoras theorem that states that in a right angled triangle the square of the hypotenuse (the side opposite to the right angel) is equal to  the sum of the squares of the other two sides. This theorem can be written as an equation....

c^{2} = a^{2}  + b^{2}

Now we can see that we can easily find the missing value by using this theorem. We just have to substitute the values. And we get the following

c^{2} = a^{2} + b^{2}

a^{2} = c^{2} - b^{2}

a^{2} = 15^{2} - 9^{2}

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a = \sqrt{144}

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3 years ago
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raketka [301]

Answer:

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Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
In triangle EFG, angle E equals 8x-16, angle F equals x+8, and angle G equals 2x-10. What is the value of x?
Stels [109]

Answer: The value of x= 18

Step-by-step explanation:

Given: In triangle EFG, angle E equals 8x-16, angle F equals x+8, and angle G equals 2x-10.

The sum of all angles of a triangle is 180°.

Therefore, in triangle EFG

∠E + ∠F +∠G= 180°

⇒ 8x-16 +x+8+ 2x-10 =  180

⇒ 11x-18= 180

⇒ 11x = 180+18

⇒11x=198

⇒ x= 18   [Divide both sides by 11]

Hence, the value of x= 18

6 0
2 years ago
A jeweler has 36 inches of silver chain. She needs 5 time that much to make some necklaces. How much silver chain does the jewel
Elina [12.6K]
36 *<span> 5 = 180 
hope this helps




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4 0
2 years ago
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