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mafiozo [28]
3 years ago
15

1. Is the following function continuous/differentiable at x = 1?

Mathematics
1 answer:
alexira [117]3 years ago
3 0

Answer:

A

Step-by-step explanation:

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What does sin^2 x - cos^2 x equal
Stels [109]

Answer:

-cos(2x)

Step-by-step explanation:

I did trig last year and tutor a trig class this year :)

6 0
2 years ago
Solve the system by substitution<br> -4.5x-2y=-12.5<br> 3.25x-y=-0.75
gogolik [260]

Answer:

The answer to your question is: x = 1, y = 4

Step-by-step explanation:

I'll change decimals to fractions

4.5 = 9/2

12.5 = 25/2

3.25 = 13/4

0.75 = 3/4

                             -9/2 x - 2 y = - 25/2         (I)

                             13/4 x  -   y  = - 3/4            (ll)

Process

               from (II)     y = 13/4x  + 3/4

Sunstitution             -9/2x -2(13/4 x + 3/4) = - 25/2

                               -9/2 x - 13/2 x - 3/2 = -25/2

Multiply by 2         -9 x - 13 x - 3 = -25

                             -22 x = -25  + 3

                            -22 x = -22

                             x = 22/22

                            x = 1

                             y = 13/4 (1) + 3/4

                             y = 16/4

                             y = 4                                          

7 0
3 years ago
Just tell me the answer and how you got it , thank you​
leva [86]

(2x^2 + 4x + 6) - (-3x - 5x^2 + 4)

The negative sign separating the expressions is just multiplying the rightmost expression by -1.

(2x^2 + 4x + 6) + (3x + 5x^2 - 4)

Now, let's add together terms that share the same variable.

2x^2 + 5x^2 = 7x^2

4x + 3x = 7x

6 + (-4) = 2

Let's combine each of these terms into one expression.

7x^2 + 7x + 2 is the final answer.

7 0
3 years ago
What’s the answer to -10 x 20
likoan [24]
Multiply 10 x 20 and change the sign
-200
7 0
3 years ago
Read 2 more answers
PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!
Molodets [167]
Use photomath



shzjsjzjajsjwjsjw
3 0
3 years ago
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