4 years ago

8.50 as a rational number?

1 answer:

3 0

8.50 is already a rational number last time I checked since a rational number is any whole number, fraction, mixed number or decimal.

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In a recent year a baseball team paid two times as much to their ace pitcher as they paid to their shortstop. If they paid $21 m

slega [8]

They paid the pitcher 14 million and the short stop 7 million

7 0

3 years ago

Ke onda alv dame los answers

ddd [48]

Answer:

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5 0

3 years ago

Solve the equation for principal values of x. Express solutions in degrees.

Hitman42 [59]

Option C:

x = 90°

Solution:

Given equation:

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

To find the degree:

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

Subtract 1 + cos²x from both sides.

$\sin x-1-\cos ^{2} x=0$

Using the trigonometric identity: $\cos ^{2}(x)=1-\sin ^{2}(x)$

$\sin x-1-\left(1-\sin ^{2}x\right)=0$

$\sin x-1-1+\sin ^{2}x=0$

$\sin x-2+\sin ^{2}x=0$

$\sin ^{2}x+\sin x-2=0$

Let sin x = u

$u^2+u-2=0$

Factor the quadratic equation.

$(u+2)(u-1)=0$

u + 2 = 0, u – 1 = 0

u = –2, u = 1

That is sin x = –2, sin x = 1

sin x can't be smaller than –1 for real solutions. So ignore sin x = –2.

sin x = 1

The value of sin is 1 for 90°.

x = 90°.

Option C is the correct answer.

3 0

3 years ago

Read 2 more answers

-2x + y = 1 -4x + y = -1 Solve the following system of equation

andre [41]

Answer:

x = 2 and y = 5

Step-by-step explanation:

2x = 2

x = 2

-4 + y = 1

y = 5

4 0

3 years ago

HELP PLEASE ITS A UNITE TEST PLEASE GIVING BRAINLIEST Reiko received a package in the shape of a cube. Each side of the package

Aleonysh [2.5K]

Answer:The system of inequalities describing this situation is

3y+7x≤500

y ≥2x+4

Step-by-step explanation:hope this will help u in the test I hope u get 100 percent in the test good luck.

8 0

3 years ago