All categories

2 years ago

Which expression is equivalent to rm ÷ rn?

1 answer:

7 0

Hi there!

The expression mr ÷ nr is equal to this.

Since the property of equality states that ab + ac = ba + bc and the like, this equation is true.

Hope this helps!

You might be interested in

The graph of f(x) and g(x)=f(x) + k is shown on the coordinate plane. k = _ ?

Alenkasestr [34]

Answer:

k = 10

Step-by-step explanation:

f(x) has been moved up 10 units to get g(x). So, k = 10

6 0

2 years ago

Solve: sin5x - cos2x + sin x = 0.

mote1985 [20]

Answer:

x = 10 , 45 degrees.

Step-by-step explanation:

This seems a tricky one .

I guess we can use sin A + sin B = 2 sin (A+B)/2 cos (A - B) / 2

so sin 5x + sin x = 2 sin 3x cos 2x so our equation becomes

2 sin 3x cos 2x - cos 2x = 0

cos 2x ( 2 sin 3x - 1) = 0

so 2 sin 3x = 1

sin 3x = 1/2

giving 3x = 30 degrees and x = 10 degrees

or cos 2x = 0

so 2x = 90

giving x = 45 degrees.

8 0

3 years ago

If a+8 = 12 , then a =ayuda por favor

NARA [144]

Answer:

a = 4

Step-by-step explanation:

a+8 = 12

a= 12-8

a=4

7 0

3 years ago

Read 2 more answers

The formula for velocity of an object is the equals d over t where he is a velocity of the object t is the distance traveled and

butalik [34]

Answer:

$(a)\ t =\frac{d}{v}$

$(b)\ d = vt$

Step-by-step explanation:

The question is mixed up with details of another question. See comment for original question

Given

$v = \frac{d}{t}$

$v \to velocity$

$d \to distance$

$t \to time$

Solving (a): Solve for time

We have:

$v = \frac{d}{t}$

Cross multiply

$t * v = d$

Make t the subject

$t =\frac{d}{v}$

Solving (b): Solve for distance

We have:

$v = \frac{d}{t}$

Cross multiply

$d = v * t$

$d = vt$

7 0

3 years ago

Penelope works as a lifeguard at the neighborhood pool. The chart shows

ladessa [460]

Answer:

a. $60

b. it doesn't show how much Mark makes on here so I can't give an answer

5 0

2 years ago