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3 years ago

Brainliest and double the points!!! PLEASE HELP!!!

Mathematics

2 answers:

11111nata11111 [884]3 years ago

4 0

Im not sure what that means but i can try...

Im not sure the order to put them in but the positive line is

y>1/2x-1

And the negative line is

Y<=3x+1

(I couldn’t find a less than and equal to sign)

bezimeni [28]3 years ago

4 0

Answer:

y>1/2x-1

And the negative line is

Y<=3x+1

Step-by-step explanation:

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40 divided by 28! HURRY!!

Schach [20]

Answer:

fraction~ 10/7

decimal~ 1.428571

mixed number~ 1 3/7

Step-by-step explanation: for decimal make sure to put the line over the 428571 because its an on going number

3 0

3 years ago

Determine the value of each unknown variable

Oksi-84 [34.3K]

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4 0

3 years ago

Sin5A/SinA-cos5A/cosA=4cos2A

irina1246 [14]

Answer:

See Explanation

Step-by-step explanation:

$\frac{ \sin5A}{\sin A} - \frac{ \cos5A}{\cos A} = 4\cos2A \\ \\ LHS = \frac{ \sin5A}{\sin A} - \frac{ \cos5A}{\cos A} \\ \\ = \frac{ \sin5A \:\cos A - \cos5A \: \sin A}{\sin A \:\cos A } \\ \\ = \frac{ \sin(5A -A )}{\sin A \:\cos A} \\ \\ = \frac{ \sin 4A}{\sin A \:\cos A} \\ \\ = \frac{ 2\sin 2A \: \cos 2A}{\sin A \:\cos A} \\ \\ = \frac{ 2 \times 2\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A} \\ \\ = \frac{ 4\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A} \\ \\ =4\cos 2A \\ \\ = RHS \\ \\ thus \\ \\ \frac{ \sin5A}{\sin A} - \frac{ \cos5A}{\cos A} = 4\cos2A \\ \\ hence \: proved$

5 0

3 years ago

(8x + 11) - (7x - 5)?

zaharov [31]

Answer:

use the cymath calculator

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Solve the inequality <br> -7<3x+5 less than or equal to(no sign for that)7

olganol [36]

Answer:

x=-1

Step-by-step explanation:

-7 < 3(x) + 5 ≤ 7

-7 < 3(-1) + 5 ≤ 7

-7 < -3 + 5 ≤ 7

-7 < 2 ≤ 7

6 0

3 years ago