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3 years ago

Which is the value of this expression when a = 5 and k = negative 2?

Mathematics

1 answer:

LuckyWell [14K]3 years ago

6 0

Answer:

Step-by-step explanation:

hello :

this expression equivalent to : (3/a)^5

because ;3²a^(-2)/3a^(-1)= (3²/3)×(a^(-2)/a^(-1)) = 3a^(-2+1) = 3a^(-1) = 3/a

now : a=5 and k= -2 so : (3/5)^(-2) = (5/3)² =25/9

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lamar has 1354.5 Kilograms of potatoes to deliver equally to 18 stores 12 of the stores are Bronx how many kilograms of potatoes

Novay_Z [31]

903 kg of potatoes will be delivered to stores in Bronx

Solution:

Given that, lamar has 1354.5 Kilograms of potatoes to deliver equally to 18 stores

12 of the stores are Bronx

Number of stores in Bronx = 12

From given,

Kilograms of potatoe = 1354.5 kg

Total number of stores = 18

Let us first find the kilograms of potato delivered to 1 store

$\text{kg of potato to 1 store } = \frac{\text{Total kg of potato}}{\text{ total number of stores}}$

Substituting the values we get,

$\text{kg of potato to 1 store } = \frac{1354.5}{18} = 75.25$

Thus 75.25 kg potato is delivered to 1 store

How many kilograms of potatoes will be delivered to stores in Bronx

Number of stores in bronx is 12, so multiply 75.25 by 12

$\rightarrow 12 \times 75.25 = 903$

Thus 903 kg of potatoes will be delivered to stores in Bronx

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3 years ago

Solve. If there are X teams in a sports league and all the teams play each other twice, a total of N(x) gamers are played, where

WINSTONCH [101]

number of games is 90, so cost is

90×46=4140

4 0

3 years ago

Read 2 more answers

Express the following number as a decimal: 2 x 10^-6

Vitek1552 [10]

Answer:

0.000002

Step-by-step explanation:

2* 10^-6

is the same as

2 * 0.000001

which is

0.000002

7 0

3 years ago

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The diameter of a bicycle wheel is 63 cm. How much distance will it cover in 20revolutions?

alina1380 [7]

Answer:

1256 cm

Step-by-step explanation:

First we must find the perimeter, because the perimeter is equal to 1 revolution.

The perimeter of any circle is Pi(Diameter)

3.14*20

62.8 cm is the perimeter of the bike wheel.

Because the perimeter is basically a revolution, we can multiply 62.8 by 20 to get:

1256 cm

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2 years ago

Solve 8X+4Y=40 for Y

JulsSmile [24]

Answer:

y = -2x + 10

Step-by-step explanation:

8x + 4y = 40

4y = -8x + 40

y = -2x + 10

6 0

2 years ago