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3 years ago

Someone please let me know the answer

Mathematics

1 answer:

erastova [34]3 years ago

3 0

Answer:

The answer is 30°

Step-by-step explanation:

$when \: \: \sqrt{3} \sin( \alpha ) - \cos( \alpha ) = 0 \\ \sqrt{3} \sin( \alpha ) = \cos( \alpha ) \\ multiply \: by \: \frac{1}{ \sqrt{3} \cos( \alpha ) } \\ then \\ \frac{ \sin( \alpha ) }{ \cos( \alpha ) } = \frac{1}{ \sqrt{3} } \\ \tan( \alpha ) = \frac{1}{ \sqrt{3} } \\ then \: \alpha = 30$

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Who ever helps get branliest.

andrew11 [14]

Answer:

c ?

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

12.) Find the x-intercept and y intercept of the following equation. 9x + 6y = -36

Alik [6]

Answer:

Thevalue of x-intercept is 0

and y intercept is-6.

Step-by-step explanation:

here,9x+6y=-36

9x = -36 - 6y

x=(-36 -6y)/9

x=(-12-2y)/9.........(i)

putting value of x in question

9[(-12-2y)/9]+6y=-36

-12-2y+6y= -36

-12+4y= -36

4y=-24

y=-6

puting value of x in equation (i)

x=(-12-2y)/9

x=(-12-2×-6)/9

x=0

I have done your task. But i think it will help you. if it helps please my answer as brainliest answer. 

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4 0

3 years ago

What are the factors of

Veronika [31]

Step 1: Trying to factor as a Difference of Squares:

Factoring: x²⁰⁰² - 1

Theory : A difference of two perfect squares, A² - B² can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =

A² - AB + BA - B² =

A² - AB + AB - B²

A² - B²

Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 1 is the square of 1

Check: x²⁰⁰² is the square of x¹⁰⁰¹

Factorization is : (x¹⁰⁰¹ + 1) × (x¹⁰⁰¹ - 1)

7 0

2 years ago

6v+12b=504 2v+5b=204

ss7ja [257]

Answer:

Step-by-step explanation:

6v + 12b = 504 eq1

2v + 5b = 204 eq2

6v + 15b = 612 eq2 times 3

0 -3b = 504 - 612 subtraction of the two bolded eqs

-3b = -108 solve for b

b = 36

Another way to solve the problem

6v + 12b = 504 I would eliminate the v term by multiplying the bottom

2v + 5b = 204 equation by -3 on BOTH sides and then add the two eqs

2v + 5b = 204

-3(2v + 5b) = -3(204)

-6v - 15b = -612

6v + 12b = 504

-6v - 15b = -612 add the like terms

(6v + (-6v)) + (12b + (-15b) = 504 + (-612)

(6v -6v)) + (12b - 15b) = 504 - 612)

0 + -3b = - 108 solve for b divide both sides by -3

b = -108/-3

b = 36

use eq 2v + 5b = 204 to solve for v and knowing b = 36

2v + 5b = 204 b=36

2v + 5(36) = 204 substract 5 times 36 from both sides

2v = 204 - 180

v = 24 / 2

v = 12

NOW CHECK the values for b and v using the OTHER eq

6v + 12b = 504

6(12) + 12(36) = 504

72 + 432 = 504

504 = 504 IT CHECKS

4 0

3 years ago

Interval does h have a negative average of change

NikAS [45]

The average rate of change over some interval [a, b] is equal to the slope of the secant line from (a, h(a)) to (b, h(b)).

h(t) is a quadratic function, so its graph is a parabola, and in particular it's one that has a minimum of -4 when t = 2.

The secant line over an interval [a, b] will have a negative slope if the distance from a to 2 is larger than the distance from b to 2.

(A) If a = 4 and b = 5, then |a - 2| = 2 and |b - 2| = 3, so the slope and hence average rate of change is positive.

(B) If a = -1 and b = 5, then |a - 2| = 3 and |b - 2| = 3, so this ARoC is zero.

(D) If a = -1 and b = 4, then |a - 2| = 3 and |b - 2| = 2, so this ARoC is negative.

8 0

2 years ago

Someone please let me know the answer ​

Someone please let me know the answer