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oksano4ka [1.4K]
3 years ago
9

Given that 2x-7y=30

Mathematics
1 answer:
lidiya [134]3 years ago
4 0

Answer:

y = - \frac{24}{7}

Step-by-step explanation:

Substitute x = - 3 into the expression

2x - 7y = 30

2(- 3) - 7y = 30

- 6 - 7y = 30 ( add 6 to both sides )

- 7y = 36 ( divide both sides by - 7 )

y = \frac{36}{-7} = - \frac{36}{7}

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Which exponential equation is equivalent to the logarithmic equation below? <br><br> 4= ln x
ra1l [238]
The exponential function equivalent to 4=ln x will be evaluated as follows:
from 
4=ln x
introducing the exponential function
e^4=e^(lnx)
but
e^(lnx)=x
thus
e^4=x
answer:
e^4=x
5 0
4 years ago
An investor has purchased 1,000 shares of stock at a price of $10 per share. The stock pays no dividends, and historically has a
Pani-rosa [81]

Answer:

D

Step-by-step explanation:

Here, we want to select which of the options explains the scenario in the question.

Firstly, 1,000 shares were purchased at $10 per share.

Mathematically the total amount of shares bought will be 10 * 1000 = $10,000

Also, we have the growth rate as 12.5% = 12.5/100 = 0.125

Thus, representing the scenario with a function, we have;

A(t) = 10,000 e0.125t

5 0
4 years ago
Use prime factors to find hcf of 18 12 56​
givi [52]

Answer:

it is 2 bcz if we see that in the 12 , 18 and 56 the two is the highest common factor

8 0
3 years ago
Read 2 more answers
Have another question! will give brainliest again
stepan [7]

Answer:

-64

Step-by-step explanation:

If I represent the worker's position relative to the surface of the earth then

if we let Δy = the change of position.

Δy = 0 -64 \\ Δy = -64

5 0
4 years ago
Find the following product if possible. Explain if it is not possible. <br><br> (See picture)
Nataly_w [17]

Answer:

The answer to your question is the letter a

Step-by-step explanation:

 |    1    4    -1   |      |  2    -1   |

 |    3   2    2   |      |  0     3  |         Product  = 2 x 3   and 3 x 2  = 2 x 2

                              | 5     2  |          It is possible to do this product,

                                                      the result will be a 2 x 2 matrix

Process

1.- Multiply first row by first column and second row by second column.

2.- Multiply the second row by the first column and second row by the second column.

  = (1 x 2) + (4 x 0) + (-1 x 5) = 2 + 0 - 5 = -3

  = (1 x -1) + (4 x 3) + (-1 x 2) = -1 + 12 - 2 = 9

  = (3 x 2) + (2 x 0) + (2 x 5) = 6 + 0 + 10 = 16

  = (3 x -1) + (2 x 3) + (2 x 2) = -3 + 6 + 4 = 7

Result

             |  3   9  |

             | 16   7  |    

4 0
4 years ago
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