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2 years ago

Dorothy wants to buy a box of dirt that normally costs $45.11. It is

Mathematics

1 answer:

Alik [6]2 years ago

6 0

Answer:

7.1

Step-by-step explanation:

um i think yolo

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Need help also.......

Schach [20]

Answer:

Step-by-step explanation:

$\frac{QT}{Q'T'}=\frac{1}{2}\\$

Scale factor:

1:2

7 0

3 years ago

BRAINILIST TO FIRST PERSON TO ANSWER AND GET IT CORRECT!!! please answer fast!

miv72 [106K]

The answer would be 4 divided by 2/3 = 6 tiles

3 0

3 years ago

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Verify cot x sec^4x=cotx +2tanx +tan^3x

Tanzania [10]

Answer:

See explanation

Step-by-step explanation:

We want to verify that:

$\cot(x) \: { \sec}^{4} x = \cot(x) + 2 \tan(x) + { \tan}^{3} x$

Verifying from left, we have

$\cot(x) \: { \sec}^{4} x = \cot(x) \: ( 1 + { \tan}^{2} x )^{2}$

Expand the perfect square in the right:

$\cot(x) \: { \sec}^{4} x = \cot(x) \: ( 1 + { 2\tan}^{2} x + { \tan}^{4} x)$

We expand to get:

$\cot(x) \: { \sec}^{4} x = \cot(x) \: + \cot(x){ 2\tan}^{2} x +\cot(x) { \tan}^{4} x$

We simplify to get:

$\cot(x) \: { \sec}^{4} x = \cot(x) \: + 2 \frac{ \cos(x) }{\sin(x) ) } \times \frac{{ \sin}^{2} x}{{ \cos}^{2} x} +\frac{ \cos(x) }{\sin(x) ) } \times \frac{{ \sin}^{4} x}{{ \cos}^{4} x}$

Cancel common factors:

$\cot(x) \: { \sec}^{4} x = \cot(x) \: + 2 \frac{{ \sin}x}{{ \cos}x} +\frac{{ \sin}^{3} x}{{ \cos}^{3} x}$

This finally gives:

$\cot(x) \: { \sec}^{4} x = \cot(x) + 2 \tan(x) + { \tan}^{3} x$

3 0

3 years ago

Simplify ........ (256y²⁵⁶) ⅛<br>help asap!!!!!

AVprozaik [17]

Answer:

2y^32

Step-by-step explanation:

Since 2^8 = 256, the eighth root of 256 is 2.

Next, we find the power of y by multiplying 256 and 1/8: result is 32.

Complete answer: 2y^32

7 0

2 years ago

When two lines intersect to form a 90 degree angle, these lines are called ________ lines?

zalisa [80]

When two lines intersect to form a 90 degree angle, these lines are called perpendicular lines.

5 0

3 years ago

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