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3 years ago

Please help me please

Mathematics

1 answer:

Gala2k [10]3 years ago

6 0

Answer:

Step-by-step explanation:

Andrew, Blake, Jamal, Ernesto

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What is the area of the yellow region? INEED HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!

True [87]

Answer:

A=¼πr²

=¼(3.142×5²)

=19.64 square miles

8 0

2 years ago

If sin theta = 4/5 and theta is in quadrant 2, the value of cot theta is

trasher [3.6K]

Answer:

Cot(theta) = - 0.75 or -3/4

Step-by-step explanation:

The hypotenuse is 5

The y value is 4

We need to find the corresponding x value.

x^2 + y^2 = z^2

X = ?

y = 4

z = 5

x^2 + 4^2 = 5^2

x^2 + 16 = 25

x^2 = 9

Now in this case, you are in quadrant 2, so the x value is - 3

sqrt(x^2) = sqrt(9)

x = - 3

The cot value is the adjacent (x value) / the opposite ( y ) value

Cot(theta) = -3/4

cot(theta) = -0.75

8 0

3 years ago

Read 2 more answers

Which of the following is a solution of x2 + 6x = −18? x = 3 − 3i x = −3 + 3i x = −6 + 3i x = 6 − 3i

Marina86 [1]

Step 1 ) Move all terms right side of the equation.

$\displaystyle\ x^{2} + 6x = -18$

$\displaystyle\ x^{2} + 6x + 18 = -18 + 18$

$\displaystyle\ x^{2} +6x + 18 = 0$

Step 2 ) Apply quadratic formula. (Note: There are 2 solutions)

$\displaystyle\ x^{2} +6x + 18 = 0$

$\displaystyle\ x = \frac{-b\sqrt{b^{2}-4ac}}{2a}, \displaystyle\ x = \frac{-b-\sqrt{b^{2}-4ac}}{2a}$

$\displaystyle\ x = \frac{-6+\sqrt{6^{2}-4 * 18}}{2} , \displaystyle\ x = \frac{-6-\sqrt{6^{2}-4*18}}{2}$

$\displaystyle\ x = \frac{-6+6i}{2}$ ,

$\displaystyle\ x = \frac{-6-6i}{2}$

Step 3 ) Simplify.

$\displaystyle\ x = \frac{-6+6i}{2}$ ,

$\displaystyle\ x = \frac{-6-6i}{2}$

$\displaystyle\ x = -3+ 3i$ ,

$\displaystyle\ x = -3 - 3i$

Since the options only provide one of the answer we found, the answer is...

$\displaystyle\ x = -3 - 3i$

•

- Marlon Nunez

6 0

3 years ago

Read 2 more answers

Kevin ran 5 miles in the race. How many yards did Kevin run? (1 mile = 1,760 yards) A. 10,560 yards B. 8,800 yards C. 1,755 yard

nexus9112 [7]

1,760 x 5 = 8,800
B. 8,800

6 0

3 years ago

-5 -4 -3 -2 -1 0 1 2 3 4 u

bazaltina [42]

Answer:

Step-by-step explanation:

Can you rephrase the question.

5 0

3 years ago