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erma4kov [3.2K]
3 years ago
8

8a + 5b = 9; 3a + 2b = 4

Mathematics
2 answers:
Marianna [84]3 years ago
7 0
This the the awnser for this

nevsk [136]3 years ago
4 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.
a
=
−
2
,
b
=
5
a
=
-
2
,
b
=
5
T
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nalin [4]
No no no no no no no no no jk its c your welcome
7 0
4 years ago
A polygon is shown:
Klio2033 [76]

Answer:

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7 0
3 years ago
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Omar ordered his sister a birthday card from a company that randomly selects a card from their inventory. The company has 21 tot
Ksju [112]

Answer:

P = 7

Step-by-step explanation:

We have 21 total cards and out of those 21 cards, 14 of those are birthday cards. So that means that the amount of cards that are not birthday cards is the number of cards subtracted by the number of birthday cards, also shown as 21 - 14. So 21 - 14 = P, so now we solve what 21 - 14 is which is 7, so that means P = 7.

Let me know if you have any questions.

8 0
3 years ago
Complete the following statement: f(3)=_____
victus00 [196]
Using this equation, f(3) = 23.

In order to find the value of f(3), we need to take the f(x) equation and put 3 everywhere we see x. Then we follow the order of operations to solve. So, let's start with the original. 

f(x) = 2x^2 + 5sqrt(x - 2) 

Now place 3 in for each x. 

f(3) = 2(3)^2 + 5sqrt(3 - 2)

Now square the 3.

f(3) = 2(9) + 5 sqrt(3 - 2)

Do the subtraction inside of the parenthesis. 

f(3) = 2(9) + 5sqrt(1)

Take the square root

f(3) = 2(9) + 5(1)

Multiply. 

f(3) = 18 + 5

And add. 

f(3) = 23

4 0
3 years ago
Solve the system of equations graphically. Y= - (x-2)^2+1. Y= X-1
My name is Ann [436]

Answer:

(1,0) & (2,1)

Step-by-step explanation:

substitute x-1 for y in the first equation then solve using the PEMDAS and traditional rules

7 0
3 years ago
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