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Rainbow [258]
3 years ago
5

3x7x7x7x7 in index notation 2x9x9x9x2x9plz helpthx

Mathematics
2 answers:
Leto [7]3 years ago
4 0

3 \times  {7}^{4}
Because there's one 3 & four 7's .

{2}^{2}  \times  {9}^{4}
Because there are two 2's & four 9's
Nikolay [14]3 years ago
3 0

Answer:

1) 3\times 7\times 7\times 7\times 7=3\times 7^4

2) 2\times 9\times 9\times 9\times 2\times 9=2^2\times 9^4    

Step-by-step explanation:

Given : Numbers

1) 3\times 7\times 7\times 7\times 7

2) 2\times 9\times 9\times 9\times 2\times 9

To find : Write the numbers into index notation?

Solution :

Index notation is defined as the shortcut method of writing repeated multiplications by the same number.

Now, The index notation of the given number is

1) 3\times 7\times 7\times 7\times 7

3 repeat 1 time and 7 repeat 4 times.

Index notation is 3\times 7\times 7\times 7\times 7=3\times 7^4

2) 2\times 9\times 9\times 9\times 2\times 9

2 repeat 2 times and 9 repeat 4 times.

Index notation is 2\times 9\times 9\times 9\times 2\times 9=2^2\times 9^4

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I know y= 40 but what is x ?
puteri [66]

Answer:

x = 67; y = 40

Step-by-step explanation:

You are correct with y. Angles y + 23 and 63 are vertical, so they are congruent. That gives you y + 23 = 63, which gives y = 40.

To find x, look at angles 2x - 17 and 63.

They are adjacent angles whose outside rays lie on a line. Angles like these are called a linear pair, and they are supplementary. That means their measures add up to 180 deg.

2x - 17 + 63 = 180

2x + 46 = 180

2x = 134

x = 67

6 0
3 years ago
Help please need answer fast
Kazeer [188]
The answer is B because A+B = your new set of numbers
7 0
3 years ago
Un depósito se llena de agua a diario para dar de beber a los animales de una granja. Según requerimiento se sacaron 3/8 del agu
Nostrana [21]

Answer:

5/24

Step-by-step explanation:

The question in English is

A tank is filled with water daily to give water to the animals on a farm. As required, 3/8 of the water was taken from the tank to give to the horses and 1/3 of what was left in the tank was given to the pigs. The remainder of the tank was distributed in two equal amounts to give water to the birds and pets. What is the fraction of the water that pets receive to drink?

1) 3/8 of the water was taken from the tank to give to the horses

At this point in the tank there are 1-3/8=5/8 of the water of the tank

2) 1/3 of what was left in the tank was given to the pigs

At this point in the tank there are

(1-1/3)*5/8

(2/3)(5/8)=10/24 of the water of the tank

3) The remainder of the tank was distributed in two equal amounts to give water to the birds and pets

The remainder is equal to 10/24

divided by 2

(10/24)/2=10/48

4) The fraction of the water that pets receive to drink is 10/48

simplify

10/48=5/24

8 0
3 years ago
Please help me What are the dimensions of the rectangle shown below? Remember to use the axes on the coordinate grid to help you
Deffense [45]
It’s 6 units x 4 units
6 0
3 years ago
A farmer plans to enclose two adjacent rectangular pens against a barn wall (see figure).
Licemer1 [7]

Answer: Let's assume that the pig pens need to be fenced in the way shown in the diagram above.

Then, the perimeter is given by

4

x

+

3

y

=

160

.

4

x

=

160

−

3

y

x

=

40

−

3

4

y

The area of a rectangle is given by

A

=

L

×

W

, however here we have two rectangles put together, so the total area will be given by

A

=

2

×

L

×

W

.

A

=

2

(

40

−

3

4

y

)

y

A

=

80

y

−

3

2

y

2

Now, let's differentiate this function, with respect to y, to find any critical points on the graph.

A

'

(

y

)

=

80

−

3

y

Setting to 0:

0

=

80

−

3

y

−

80

=

−

3

y

80

3

=

y

x

=

40

−

3

4

×

80

3

x

=

40

−

20

x

=

20

Hence, the dimensions that will give the maximum area are

20

by

26

2

3

feet.

A graphical check of the initial function shows that the vertex is at

(

26

2

3

,

1066

2

3

)

, which represents one of the dimensions that will give the maximum area and the maximum area, respectively.

Hopefully this helps!

Step-by-step explanation: hope this helps

3 0
3 years ago
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