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Sedbober [7]
3 years ago
11

Somebody please solve this!!!​

Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

Answer:

See below.

Step-by-step explanation:

We know that

                              tanA + tan B

tan (A + B)     =     ---------------------                       

                               1 - tanAtanB

Substituting for A + B

tan (A + B) = tan pi/4 = 1.

            tanA + tan B

So        ------------------   =    1

             1 - tanAtanB

Therefore   tanA + tan B =   1 - tanAtanB.

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Is the square root of 4 plus the square root of 16 rational?
evablogger [386]

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I’m not sure which one it is.
Fofino [41]

Answer: the answer is A) AC~=FC

Step-by-step explanation:

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4 0
2 years ago
A student took a survey of the class. There are 42 students in the class. The student surveyed favorite foods. 10 said hamburger
8_murik_8 [283]

Answer:

52.38%

Step-by-step explanation:

Given that,

Total number of students in the class is 42

Out of 42, 10 like hamburgers, 22 like pizza, 8 like french fries, and 2 like salad.

We need to find the percentage of the class chose pizza. There are 22 student who like to have pizza. Required percentage is given by :

P=\dfrac{22}{42}\times 100\\\\P=52.38\%

So, 52.38% of students chose pizza.

7 0
3 years ago
1. The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2.
Nastasia [14]
1: (-1,-1) is (x, y) to see if it is a solution, you would just plug in x and y and see if the equation is true.
-4 (-1) + 2(-1) = 2
4 + -2 = 2
2 = 2 CORRECT
So... plug in x and y in the second equation to Make sure it works for that one too.
-1 + -1 = -2
-2 = -2 CORRECT
So, yes. (-1,-1) is a solution to both equations.
5 0
3 years ago
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