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sweet-ann [11.9K]
3 years ago
15

PLEASEEE help with 3-4 and a-b :)

Mathematics
1 answer:
attashe74 [19]3 years ago
3 0
The awnser would be-(4a+b-3) I hope this helps you
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What is (2.3x10^-3)/(4.6x10^-7) written in scientific notation? Please show how you solved this.
lions [1.4K]
(2.3*10^-3) / (4.6*10^-7)

(2.3*0.001) / (4.6*0.0000001)  *10^-3=0.001 & 10^-7=0.0000001*

(0.0023) / (0.00000046)   *2.3*0.001=0.0023 & 4.6*0.0000001=0.00000046*

5000  *0.0023/0.00000046*

So the answer is 5000
5 0
3 years ago
- 22 - 7v = - 3(8V + 4)<br> Round to the nearest hundreth
Dmitriy789 [7]

Answer:

v = 0.58

Step-by-step explanation:

-22 - 7v = -3(8v + 4)

Expand -3(8v + 4)

3 * 8v - 3 * 4

Simplify -3 * 8v -3 * 4

= -24v - 12

-22 - 7v = -24v - 12

Add 22 to both sides

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Add 24v to both sides

17v = 10

\frac{17v}{17} =\frac{10}{17}

v =\frac{10}{17}

v=0.58

5 0
3 years ago
The measure of b is _______a0
postnew [5]

{c}^{2}  =   {a}^{2}  +  {b}^{2}
{29}^{2}  =  {20}^{2}  +  {b}^{2}
b =  \sqrt{ {29}^{2}  -   {20}^{2}  }
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5 0
4 years ago
Read 2 more answers
Solve the equation 9x = 7(x + 2). <br> A) -7 <br> B) -1 <br> C) 1 <br> D) 7
HACTEHA [7]

Answer:

The solution of the equation 9x=7(x+2) is:

Option D) 7

Step-by-step explanation:

9x=7(x+2)

Eliminating the parentheses applying distributive property:

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Multiplying:

9x=7x+14

Grouping the x's on the left side of the equation: Subtracting 7x both sides of the equation:

9x-7x=7x+14-7x

Subtracting:

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Solving for x: Dividing both sides of the equation by 2:

2x/2=14/2

Dividing:

x=7

Solution: x=7 (option D)  

7 0
3 years ago
Read 2 more answers
Mr. moore read 25 pages of a book on monday he read 32 pages on tuesday 39 pages on wednesday and 46 pages on thursday if this p
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53 on Friday, 60 on Saturday and 67 on Sunday. If you noticed there is an interval of 7 pages between each day.

Hope this will help.
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3 years ago
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