All categories

3 years ago

Which expression is equivalent to > 7^8/7 7^9 7^8 7^7 1/7^8

Mathematics

1 answer:

tankabanditka [31]3 years ago

5 0

Answer:

none of the above the 7^8/8 is equivalent to

You might be interested in

The initial water level of a darn is 35 meters and decreases at a rate of 0.7 meters per day.

sdas [7]

Answer:

Step-by-step explanation:

5 0

3 years ago

Jane is cooking in her recipe indicates that she should add several spices she needs to add 1/2 of a teaspoon of salt, 1 1/4 tea

polet [3.4K]

Answer: total number of teaspoons of spices in the dish =3.25 teaspoons

Step-by-step explanation:

Step 1

Listing the spices and their quantities , we have

Salt = 1/2 teaspoon

Orégano =1 1/4 teaspoon =5/4 teaspoons

Basil = 3/4 teaspoon

Pepper= in half as much pepper as salt -- This means that the quantity of pepper should be 50% more in quantity than salt

Therefore quantity of pepper = 50% x 1/2 = 0.5 x 0.5= 0.25

0.25 + 1/2 = 0.25 + 0.5 = 0.75 = 3/4 teaspoon of pepper.

Step 2

Adding the amount of spices we have

1/2 + 5/4+ 3/4+ 3/4 = 2+ 5+3+ 3/4 = 13/4 = 3 1/4 teaspoons of spices = 3.25 teaspoons of spices .

3 0

3 years ago

The total source voltage in the circuit is 6-3i V. What is the voltage at the middle source

Bezzdna [24]

Answer:

<em>The voltage at the middle source is</em> $(2-4\mathbf{i})\ V$

Step-by-step explanation:

<u>Voltage Sources in Series</u>

When two or more voltage sources are connected in series, the total voltage is the sum of the individual voltages of each source.

The figure shown has three voltage sources of values:

$2 + 6\mathbf{i}$

$a + b\mathbf{i}$

$2 - 5\mathbf{i}$

The sum of these voltages is:

$V_t=4+a+(6+b-5)\mathbf{i}$

Operating:

$V_t=4+a+(1+b)\mathbf{i}$

We know the total voltage is $6-3\mathbf{i}$ , thus:

$4+a+(1+b)\mathbf{i}=6-3\mathbf{i}$

Equating the real parts and the imaginary parts independently:

4+a=6

1+b=-3

Solving each equation:

a = 2

b = -4

The voltage at the middle source is $(2-4\mathbf{i})\ V$

5 0

3 years ago

The coordinates of the vertices of triangle QRS are Q (1,-2), R (1,9),

Darina [25.2K]

I think 1700000000000000000

5 0

3 years ago

Read 2 more answers

Cynthia makes 4 deposits of $50 each and 3 withdrawals of $75 each. What is the total change in Cynthia's account?

scoray [572]

Answer:

$-25

Step-by-step explanation:

(4*50) - (3*75)

200 - 225

-25

8 0

3 years ago

Read 2 more answers