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3 years ago

1 1/5 times 4/5 multiply and simplify

Mathematics

1 answer:

Reptile [31]3 years ago

6 0

Answer:

Step-by-step explanation:

Hope It Helps!

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Pls help me thanks :)

pishuonlain [190]

Answer:

2+2 is 4 quick math

Step-by-step explanation:

6 0

3 years ago

What do you do to divide a decimal by a repeating decimal?

dimaraw [331]

<span>make both numbers fractions then divide them as fractions and then divide the numerator by the denominator and get your answer.</span>

5 0

3 years ago

Help!!!! Question is attached in photo

goldfiish [28.3K]

ANSWER

$\tan( \alpha ) + \tan( \beta )$

EXPLANATION

The given identity is

$\frac{ \sin( \alpha + \beta ) }{ \cos( \alpha ) \cos( \beta ) }$

We expand the numerator to get:

$= \frac{ \sin\alpha \cos\beta + \sin\beta \cos \alpha }{ \cos( \alpha ) \cos( \beta ) }$

Split the numerator to obtain:

$= \frac{ \sin\alpha \cos\beta }{ \cos( \alpha ) \cos( \beta ) } + \frac{ \sin\beta \cos \alpha }{ \cos( \alpha ) \cos( \beta ) }$

Cancel the common factors:

$= \frac{ \sin\alpha }{ \cos( \alpha ) } + \frac{ \sin\beta }{ \cos( \beta ) }$

This simplifies to give us;

$= \tan( \alpha ) + \tan( \beta )$

The second choice is correct

3 0

4 years ago

Desiree drove north for 30 minutes at 50 miles per hour. Than she drove south for 60 minutes at 20 miles per hour. How far and i

Genrish500 [490]

Answer:

5 miles towards north

Step-by-step explanation:

Given that:

Desiree drove towards north.

Time for which Desiree drove north = 30 minutes

Speed while driving north = 50 miles per hour.

Then Desiree drove towards south.

Time for which Desiree drove south = 60 minutes

Speed while driving south = 20 miles per hour.

To find:

The distance and the direction in which Desiree is now from where she has started?

Solution:

Formula for distance traveled can be given as:

$Distance = Speed \times Time$

Let us convert the given time in hours first.

While traveling north, time = 30 minutes = $\frac{1}2$ hours

Distance traveled towards north = 50 $\times$ $\frac{1}2$ = 25 miles

Then she started traveling south i.e. in the direction just opposite to earlier direction.

While traveling south, time = 60 minutes = 1 hour

Distance traveled towards south = 20 $\times$ 1 = 20 miles

So, the distance at which she is from the starting point = 25 miles towards north - 20 miles towards south = <em>5 miles towards north </em>

8 0

3 years ago

A stack of wood 4 feet wide, 8 feet long, and 4 feet high is equal to 1 cord of wood. How Many cords would a pile 4 feet wide, 1

kiruha [24]

Answer:

There will be two cords of wood in one pile of wood

Step-by-step explanation:

1 cord of wood is equal to 4 feet wide, 8 feet long, and 4 feet high

Volume of 1 cord of wood

$= L * B * H$

Substituting the give values we get

Volume of 1 cord of wood $= 4 * 8 * 4$

Volume of pile $= 4 * 16 * 4$

Number of cord in one pile of wood is equal to volume of pile divided by volume of one cord

$\frac{4*16*4}{4*8*4} = 2$

There will be two cords of wood in one pile of wood.

7 0

3 years ago