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3 years ago

7

ALGEBRA 2, PLEASE HELP ME

2 answers:

jeka57 [31]3 years ago

8 0

Multiply both sides of the equation in Part I by (cos theta)^2.

This will result in (cos theta)^2 + (sin theta)^2 = 1.

(Recall that (sec theta)*(cos theta) = 1.)

____ [38]3 years ago

4 0

I believe the answer is cos^2 theta. Sec^2 theta on the right side of the equation is the inverse of Cos^2 theta, so multiplying the two together will get you 1. Cos^2 theta * Tan^2 theta = Sin^2 theta, and Cos^2 theta * 1 = Cos^2 theta. This all leads to the third and last step in the picture above.

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Delaware was the first state to enter the Union and Hawaii was the 50th. If we order the positions of entry for the rest of the

Anna71 [15]

Answer:

State A was the <u>12th</u> state to enter the Union. State B was the <u>11th</u> state to enter the Union.

Step-by-step explanation:

Let's call x to the order-of-entry of State B, therefore the order-of-entry of State A is x+1. Given that he product of their order-of-entry numbers is 132:

x*(x+1) = 132

x² + x - 132 = 0

Using quadratic formula:

$x = \frac{-b \pm \sqrt{b^2 -4(a)(c)}}{2(a)}$

$x = \frac{-1 \pm \sqrt{1^2 -4(1)(-132)}}{2(1)}$

$x = \frac{-1 \pm 23}{2}$

$x_1 = \frac{-1 + 23}{2}$

$x_1 = 11$

$x_2 = \frac{-1 - 23}{2}$

$x_2 = -12$

The negative solution has no sense in the context of our problem, then the solution is x = 11.

5 0

2 years ago

5(2x+6)=-4(-5-2x)+3x step by step

Oksi-84 [34.3K]

Answer:

x = 10

Step-by-step explanation:

Okay, let's solve :)

So first we have to distribute on the left side(it doesn't matter which side FYI)

When we do, we have :

10x + 30 = -4(-5-2x)

Now we distribute on the right side! Remember, negative * negative = positive.

10x + 30 = 20 + 8x + 3x

Let's simplify on the right side to

10x + 30 = 20 + 11x

Now, let's subtract 10x on both sides to get

x + 20 = 30(i simply flipped the equation)

Subtract 20 on both sides to get!

x = 10!

5 0

2 years ago

Need help rn please?/..Thank you. Multiple step equation

liubo4ka [24]

Answer:

The answer (using BEDMAS) is 27

Step-by-step explanation:

The equation 9 x [(18+2) ÷ 5 - 1] is solved using BEDMAS or PEDMAS

First solve the smaller bracket

18 + 2 = 20

So then it becomes 9 x [20 ÷ 5 - 1]

Do the division inside the bracket next

20 ÷ 5 = 4

Then it becomes 9 x [4 - 1]

Do then subtraction within the bracket

4 - 1 = 3

Then it becomes 9 x 3

Finally solve 9 x 3 which equals 27

5 0

2 years ago

the drama club sold tickets for its show. they sold student tickets for $12 each and adult tickets for $15 each. a total of 650

grigory [225]

The correct answer is: A. 150 more students tickets sold than adult tickets.

4 0

2 years ago

Solve the proportion W over thirty-six = five over eighteen.

storchak [24]

Answer:

$W=10$

Step-by-step explanation:

$\frac{W}{36}=\frac{5}{18}$

multiply both sides by 36

$W=10$

8 0

1 year ago