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Orlov [11]
3 years ago
13

Rewrite 0.81 x 104 in scientific notation. x 10 HELP ME

Mathematics
2 answers:
aev [14]3 years ago
4 0
0.81 x 10^4
= 8.1 x 10^3
Rama09 [41]3 years ago
4 0

Answer:

Ok ill help i guess

Step-by-step explanation:

0.81 X 10000

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2x + 5y = -3<br> 2x + 2y = 6
oee [108]

Answer:

(6, - 3 )

Step-by-step explanation:

Given the 2 equations

2x + 5y = - 3 → (1)

2x + 2y = 6 → (2)

Subtracting (1) from (2) term by term will eliminate the x- term

(2x - 2x) + (2y - 5y) = 6 - (- 3), that is

- 3y = 9 ( divide both sides by - 3 )

y = - 3

Substitute y = - 3 in either of the 2 equations and solve for x

Substituting y = - 3 in (1)

2x + 5(- 3) = - 3

2x - 15 = - 3 ( add 15 to both sides )

2x = 12 ( divide both sides by 2 )

x = 6

Solution is (6, - 3 )

8 0
3 years ago
Read 2 more answers
What is an equation of the line that passes through the points (5, 4) and (2, -2)?
Georgia [21]
I think the answer is Y=2x-6

8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
kiruha [24]

Answer:

Triangular pyramid: 6

Triangular prism: 9

Rectangular pyramid: 8

Rectangular prism: 12

6 0
3 years ago
Solve the quadratic equation y^2-2y-35=0
soldier1979 [14.2K]

Hello,

To solve we need to factor y^2-2y-35:

(y-7)(y+5)=0

Now solve for :

(When will (y-7)(y+5)equal zero?)

When y-7=0 or y+5=0

Solve for the 2 equations above and;

y= 7,-5

Hope this helps, have a great day!



6 0
4 years ago
Compute 5e2 - 4g + 7 where e = 4 and g = 6 ?
Elza [17]

The value of expression is 63 when e = 4 and g = 6

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

5e^2-4g+7

We have to solve the expression

Given that e = 4 and g = 6

<em><u>Substitute e = 4 and g = 6 in given expression</u></em>

\rightarrow 5(4)^2 -4(6) + 7\\\\Simplify\ the\ above\ equation\\\\\rightarrow 5(16) -24 + 7\\\\\rightarrow 80-24+7\\\\Simplify\\\\\rightarrow 56+7=63

Thus value of expression is 63

3 0
3 years ago
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