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kari74 [83]
2 years ago
15

Evaluate (2.0 x 10^-4) x (3.0x10^-3

Mathematics
1 answer:
Mars2501 [29]2 years ago
5 0

Answer:

6*10^-7

Step-by-step explanation:

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geri wants to put 6 stamps on some pages in her book and 9 stamps on other pages. explain how she could do this with 78 stamps
Readme [11.4K]
She could put 6 stamps on 4 pages, and 9 stamps on the other pages
6 * 4 = 24
78 - 24 = 54
54/9= 6

6 0
3 years ago
Lines that are tangent to a circle are
jonny [76]

Step-by-step explanation:

Lines that are tangent to a circle are perpendicular to the radius of the circle.

Lines that are tangent to a circle are congruent

5 0
3 years ago
Help please, will give thanks uwu
BabaBlast [244]

(3x) + (x+60) = 180

4x + 60 = 180

Subtract 60 from both sides

4x = 120

Divide 4 from both sides

x = 30

7 0
3 years ago
Read 2 more answers
A store sells a pack of 50 widgets for $2, a pack of 120 widgets for $6, and a pack of 200 widgets for $9. Which is the best buy
liubo4ka [24]

Answer:

The first 50 widgets for $2

Step-by-step explanation:

50/2=25

120/6=20

200/9=22.22 repeating

5 0
2 years ago
Use the substitution method to solve.
lord [1]

Answer:

x = 7, y = 6

Step-by-step explanation:

solve for y for the first equation

2x + y = 20

-2x         -2x , eliminate 2x

y = 20-2x

now that we have found y, substitute the y in for the second equation

-5y = -6x + 12

-5(20-2x) = -6x + 12, we just changed y into 20-2x. remember that we are multiplying all of 20 - 2x by -5

-100+10x = -6x + 12, we multiplied everything from the parathesis  by -5

+100                 + 100, eliminate -100

10x = -6x + 112

+6x    +6x , eliminate 6x

16x = 112 , solve for x

x = 7

then y = 20 - 2x = 20 - 2*7 = 6

check:

2 * 7 + 6 = 20

20 = 20

-5 * 6 = -6 * 7 + 12

-30 = -42 + 12

-30 = -30

4 0
3 years ago
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