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erica [24]
3 years ago
14

What is the difference of the mass of the plants from week 1 to week 2?

Mathematics
1 answer:
7nadin3 [17]3 years ago
4 0

Answer:

B. 1.27

Step-by-step explanation:

15 - 14.03 = 1.27

hope this helps...

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Find 2 consecutive even integers such that twice the larger integer is four more than half of the smaller integer
solong [7]

Answer:

0 and 2

Step-by-step explanation:

Let the two consecutive integers be 2x and 2x+2

We are given that twice the larger integer is four more than half of the smaller integer

2(2x+2)=\frac{1}{2}(2x)+4

4x+4=x+4

x=0

So, Two consecutive integers are 2(0)=0 and 2(0)+2=2

Hence the two consecutive integers are 0 and 2

6 0
3 years ago
The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. Which equation models t
Elden [556K]
\bf \textit{Logarithm Cancellation Rules}
\\\\
log_a a^x = x\qquad \qquad \boxed{a^{log_a x}=x}\\\\
-------------------------------\\\\
pH=-log(H+)\qquad \stackrel{pH}{7.2}=-log(H+)\implies -7.2=log_{10}(H+)
\\\\\\
10^{-7.2}=10^{log_{10}(H+)}\implies 10^{-7.2}=H+\implies \cfrac{1}{10^{7.2}}=H+
3 0
3 years ago
Read 2 more answers
Evaluate 7x9-9.<br> Aleks
JulijaS [17]
<h2 /><h2>7 \times 9 - 9 \\ 63 - 9 \\  = 54</h2>

7 0
3 years ago
Solve the system of equations x+y=-8 and -9x-6y=60 by combining the equations
TiliK225 [7]

Answer:

x = - 4    y = - 4

Step-by-step explanation:

x+y= - 8

-9x-6y=60

First, solve for x in the first equation:

x+y = - 8       Subtract y from both sides

x + y - y = -8 - y    y cancels on the left

x = - 8 - y

Now plug in what you found for x into the 2nd equation and solve for y.

- 9x - 6y = 60

-9(- 8 - y) - 6y = 60   Multiply out

72 + 9y - 6y = 60

72 + 3y = 60  Subtract 72 from both sides

72 - 72 + 3y = 60 - 72    72 cancels on the left

3y = - 12     Divie both sides by 3

3y/3 = -12/3     3 cancels on the left because 3/3 = 1

y = -4

Now plug your answer for y back into the first equation to get x.

x + y = -8

x + (-4) = - 8  Add 4 to each side

x - 4 + 4 = - 8 + 4   4 cancels on the left

x = -4

x = - 4 and y = - 4

8 0
3 years ago
A meteor crater is 3300 feet in diameter. Approximate the distance around the crater. Use 3.14 for pie.
Afina-wow [57]

circumference = diameter x PI

 3300 *3.14 = 10,362 feet

7 0
4 years ago
Read 2 more answers
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