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Musya8 [376]
2 years ago
13

Write in standard notation. 2.5 x 103 3.442 x 104

Mathematics
1 answer:
Ilya [14]2 years ago
3 0

Answer:

2.6×10^2

3.6×10^2

Step-by-step explanation:

2.5×103=257.5

257.5= 2.575 × 10^2

257.5= 2.6 × 10^2 ( rounding off)

3.442×104= 357.968

3.442×104= 3.57968 × 10^2

3.442×104= 3.6 × 10^2 (rounding off)

Hope it helps :)

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telo118 [61]

Answer:

2

Step-by-step explanation:

Given:

-2(1-4x)=3x+8

Let's distribute the parenthesis

-2+8x=3x+8

Let's subtract -3x from both sides

-2+5x=8

Let's add 2 to both sides

5x=10

Now, let's divide both sides by 5 to get x alone

x=2

Hope this is helpful

7 0
2 years ago
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the height of the triangle shown can be found using the expression 48 divide by b ,where b is the base of the triangle what is t
Marrrta [24]
The height of the triangle is 48/b or 48 over b. That's all I can tell you with the information given.

5 0
3 years ago
If postage costs $.54 for the first ounce and $.22 for the each additional ounce, calculate the cost of mailing a 10- ounce enve
sweet-ann [11.9K]

Answer:

Hence, the total cost of mailing 10 ounces is:

$ 2.52

Step-by-step explanation:

If postage costs $.54 for the first ounce and $.22 for the each additional ounce.

i.e. cost of first ounce=$ 0.54.

Now let x denote the number of ounces after the first ounce,

Hence, the cost of x ounces=$ (0.22×x)=$ 0.22 x

Hence, the cost of mailing (x+1) ounces is: $ (0.54+0.22 x)

Now, we have to find the cost of  mailing a 10- ounce envelope.

i.e. after the first ounce we need 9 more ounces.

Hence, the total cost of mailing is calculated as:

=$ (0.54+0.22\times 9)\\\\=$ (0.54+1.98)\\\\=$ 2.52\\

Hence, cost of mailing 10 ounces is:

$ 2.52

8 0
3 years ago
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17, 24, 31, 38, ... common diffrence Arithmetic Sequences
irinina [24]

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Step-by-step explanation: there you go

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3 years ago
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the area of a rectangle is 42.15 square meters. if the length is 21 meters, what is perimeters of the rectangle?
Vsevolod [243]

Answer:

perimeters of the rectangle=p=46.014 metres

Step-by-step explanation:

Given that:

Length (l) = 21 m

Area of rectangle(A) = 42.15 meter-square

Width (w)=?

Required data:

Perimater of Rectangle=p=?

Calculation:

As we know that Area of rectangle=A=l*w

Putting the value we get

42.15 m(square)=(21 m)*w

or w=42.15/21

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putting the values

p=2(21+2.007) metres

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3 years ago
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