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3 years ago

Can u pls help kkkkk

Mathematics

2 answers:

Anna007 [38]3 years ago

8 0

Answer:

The answer is C

Step-by-step explanation:

EDGE D:

natima [27]3 years ago

7 0

Answer:

The answer is the third one, 57.4

Step-by-step explanation:

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Please help, I don't know what this is, thank you

Marianna [84]

Answer:

Step-by-step explanation:

3 0

3 years ago

Show that sin (x + pi) = -sin x.

Lunna [17]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

$sin(A + B) = sin A cos B + cos A sin B$

In this problem we have

$sin(x + \pi)=sin (x)cos(\pi) + cos(x)sin(\pi)$

Remember that

$sin(\pi) = 0$

$cos(\pi) = -1$

substitute

$sin(x + \pi) = sin(x)(-1) + cos(x)(0)$

$sin(x + \pi) = -sin(x)$

4 0

3 years ago

Please help asap!!!!

AleksandrR [38]

Answer:

justin biberis black

Step-by-step explanation:

8 0

3 years ago

What are the solutions to the equation? x^2+6x = 40.

GaryK [48]

Answer:

x = 4, -10

Step-by-step explanation:

Find the zeros of the equations.

Solve the equation:

x^2 + 6x = 40

Subtract -40 from both sides.

x^2 + 6x - 40 = 0

Factor the equation.

(x - 4)(x + 10)

Solve for x with the given information by equaling it to 0.

x - 4 = 0

Add 4 to both sides

x = 4

x + 10 = 0

Subtract 10 from both sides

x = -10

This means that our x values are:

x = 4, -10

6 0

3 years ago

Matt and his brother will each work 13 hours this week for their dad. If Matt earns $14.00 an hour and his brother earns $17.00

inessss [21]

Answer:

$182.00

Step-by-step explanation:

We know that Matt will work for 13 hours, and that he will earn 14.00 an hour. We are asked how much Matt will earn by the end of the week. Because Matt's earnings are not based on his brother's earnings, we can disregard how much his brother makes.

We add 14.00 13 times, as Matt earns 14 dollars for each hour and he works for 13 dollars. This is equal to multiplying 14 by 13, resulting in 14 * 13 = 182 as our answer

6 0

3 years ago