All categories

3 years ago

PLaseeee heeeeelpoppppppppppppppppppppppppppppppp

Mathematics

1 answer:

liq [111]3 years ago

5 0

Answer:

2) b-1

3) 2c

4) d+1

5) e-3

6) f/2

7) 4×g

8) 3×h

9) 3÷i

10) j+4

11) 2k+1

12) 2l-2

13) m/2+3

You might be interested in

33. Construct a truth table to show that the following argument is valid.

GuDViN [60]

Answer:

see attached

Step-by-step explanation:

Perhaps you want to show that P∨Q will be equal to Q when ¬P is true. Attached is a truth table that shows this is the case.

This is simply a restatement of the logic of the OR function. When one its inputs is a logical 0 (false), the output depends on the other input(s).

5 0

2 years ago

How do you express sin x + cos x in terms of sine only?

frez [133]

Answer:

$\sin x + \sqrt{1-\sin^2x}$

Step-by-step explanation:

Given: sin x + cos x

To change the given trigonometry expression in term of sine only.

Trigonometry identity:-

$\sin^2x+\cos^2x=1$
$\cos x=\sqrt{1-\sin^2x}$

Expression: $\sin x+\cos x$

We get rid of cos x from expression and write as sine form.

Expression: $\sin x + \sqrt{1-\sin^2x}$ $\because \cos x=\sqrt{1-\sin^2x}$

Hence, The final expression is only sine function.

4 0

4 years ago

4x+7y=-<br> 20<br> 2x-5 y=-10

Diano4ka-milaya [45]

Answer:

x = -5 , y = 0

Step-by-step explanation:

Solve the following system:

{4 x + 7 y = -20 | (equation 1)

2 x - 5 y = -10 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{4 x + 7 y = -20 | (equation 1)

0 x - (17 y)/2 = 0 | (equation 2)

Multiply equation 2 by 2/17:

{4 x + 7 y = -20 | (equation 1)

0 x - y = 0 | (equation 2)

Multiply equation 2 by -1:

{4 x + 7 y = -20 | (equation 1)

0 x+y = 0 | (equation 2)

Subtract 7 × (equation 2) from equation 1:

{4 x+0 y = -20 | (equation 1)

0 x+y = 0 | (equation 2)

Divide equation 1 by 4:

{x+0 y = -5 | (equation 1)

0 x+y = 0 | (equation 2)

Collect results:

Answer: {x = -5 , y = 0

5 0

3 years ago

DO NOT SEND ME LINKS OR PDFS I WILL REPORT ANSWER CORRECTLY TO GET BRAINLIEST

Bezzdna [24]

The answer is 320,000,000 check photo for work

4 0

3 years ago

Name the relationship between x and y:

Yanka [14]

Answer:

They are the same angle.

Step-by-step explanation:

We have a diagonal line and two 180° parallel lines running through it. The x and y values should be identical because of the placement. The diagonal on the right and right above the 180° angle.

Option 2: Corresponding angles.

Hope this helps!

If not, I am sorry.

8 0

2 years ago