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Contact [7]
3 years ago
5

How to solve (2.31*10^-6)+(3.41*10^3)

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
3 0
Remove the unnecessary brackets
2.31 x 10^-6+3.41 x 10^3

Convert the decimal to a fraction
231/100 x 10^-6 + 3.41 x 10^3

Multiply
231/100 x 1/10^6 + 3.41 x 1000

Combine
231/100 x 1/10^6 + 3410

Calculate
231/(10^2 x 10^6) + 3410



Answer:
231/10^8 + 3410

Hope it helped :)
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-7 = -1 + x/3, solve and explain with an algebraic property
k0ka [10]
-7 = -1 +  \frac{x}{3}

Multiply both sides by 3 :

-3*1 + 3* \frac{x}{3}  = -3*7

Refine:

x - 3 = -21

x = - 21 + 3

x = - 18

hope this helps!.
4 0
2 years ago
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Solve the following equation for x.<br> 7x-3y=-13
MArishka [77]

Answer:

x = 3/7y - 13/7

Step-by-step explanation:

7x-3y=-13

  +3y   +3y        Add 3y to both sides

7x = 3y - 13       Divide both sides by 7

x = 3/7y - 13/7

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3 years ago
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a rectangles length is 4 times bigger than its width. if the width is 3.5cm. what is the perimeter and area of the rectangle
user100 [1]

Step-by-step explanation:

Length of rectangle = 4 * 3.5cm = 14cm.

Perimeter of rectangle = 2(14 + 3.5) = 35cm.

Area of rectangle = 14 * 3.5 = 49cm².

5 0
2 years ago
Which ordered pair does NOT lie on the graph of h(x)=-2x + 7
Rus_ich [418]

Answer:

A

Step-by-step explanation:

To determine if the ordered pairs lie on the graph, substitute the x- coordinate of the point into the equation and if the value agrees with the y- coordinate of the point then it lies on the graph

A

x = - 2 : y = -2(- 2) + 7 = 4 + 7 = 11 ≠ 3 ← (-2,3) not on graph

B

x = - 1 : y = - 2(- 1) + 7 = 2 + 7 = 9 ← (- 1, 9) lies on graph

C

x = 3 : y = -2(3) + 7 = - 6 + 7 = 1 ← (3, 1) lies on graph

D

x = 4 : y = - 2(4) + 7 = - 8 + 7 = - 1 ← (4, - 1) lies on graph

8 0
2 years ago
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SOMEONE HELP!! ASAP ! I’ll give brainliest !!! <br><br> I need answers for A B and C! Pls and ty!!
mrs_skeptik [129]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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2 years ago
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