All categories

3 years ago

I need the answer please don’t scam with a link

Mathematics

1 answer:

-BARSIC- [3]3 years ago

3 0

A.) False
b.) True
c.) True
d.) True

You might be interested in

The value of square root of -9 is not -3 because

andriy [413]

Answer:

The square root of -9 cannot be -3 because -3 squared or -3 times -3 equals 9 not -9.

Hope this helps!

6 0

3 years ago

Verify the identity. cot(x - pi/2) = -tan(x)

gizmo_the_mogwai [7]

Answer:

See below.

Step-by-step explanation:

$\cot(x-\frac{\pi}{2})=-\tan(x)$

Convert the cotangent to cosine over sine:

$\frac{\cos(x-\frac{\pi}{2} )}{\sin(x-\frac{\pi}{2})} =-\tan(x)$

Use the cofunction identities. The cofunction identities are:

$\sin(x)=\cos(\frac{\pi}{2}-x)\\\cos(x)=\sin(\frac{\pi}{2}-x)$

To convert this, factor out a negative one from the cosine and sine.

$\frac{\cos(-(\frac{\pi}{2}-x ))}{\sin(-(\frac{\pi}{2}-x))} =-\tan(x)$

Recall that since cosine is an even function, we can remove the negative. Since sine is an odd function, we can move the negative outside:

$\frac{\cos((\frac{\pi}{2}-x ))}{-\sin((\frac{\pi}{2}-x))} =-\tan(x)\\-\frac{\sin(x)}{\cos(x)} =-\tan(x)\\-\tan(x)\stackrel{\checkmark}{=}-\tan(x)$

8 0

3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPP I WIL GIVE BRAINLIEST ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Umnica [9.8K]

Answer : A

The word "increased" indicates a plus sign. The word "is equal" helps show us show that something is = to 15

7 0

4 years ago

Which statement about the following system of inequalities is true?

tatyana61 [14]

Answer: Option C) The solution contains points in three quadrants of the coordinate plane.

Please, see the attached files.

Thanks.

8 0

3 years ago

the ratio of weight to mass is constant.which statement describes the ratio of weight to mass and the value of x in the table

anzhelika [568]

HERE IS THE FULL PROBLEM!!!!

the table below lists four names and their corresponding aproximant weights on earth.

________________________________

mass (kilograms) | weight (newtons)

20 | 196

50 | 490

x | 1078

130 | 1274

140 | 1372

the ratio weight to mass in contant. wich statemen describes the ratio of weight to mass and the value of x in the table?

A. 98/10; X =90

B. 98/10; =110

C. 10/98; X =90

D. 10/98; X= 110

6 0

3 years ago