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3 years ago

I needddddddddd helppppppppp

Mathematics

1 answer:

Anika [276]3 years ago

5 0

Answer:

$\frac{2}{-3}$

Step-by-step explanation:

To find the slope you only need two points from the table, and the equation $\frac{y1-y2}{x1-x2}$

(1,-2) (4,-4)

$\frac{-2+4}{1-4}$ = $\frac{2}{-3}$

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If b = 3, then 3x + y = 1 and bx - y = 3 are parallel. True or False ...?

Ulleksa [173]

I am absolutely sure that the task b = 3, then 3x + y = 1 and bx - y = 3 is NOT parallel, which means that the statement represented above is FALSE.
To make sure you can check it using : $y=-3x+1

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3 years ago

Find the seventh term of the geometric sequence 1, 2, 4, ... and the sum of the first seven terms. t7= S7=

IrinaK [193]

Answer:

Seventh term is 64

Sum of the first seven terms is 127

Step-by-step explanation:

The common ratio is 2

$a_{n} = a_{1} r^{n - 1}$

n = 7 and the first term is 1. So,

$a_{7} = 1(2^{7 - 1} ) = 2^{6} = 64$

Seventh term is 64

$S_{n} = \frac{a_{1} (r^{n} -1)}{r - 1}$

$S_{7} = \frac{1(2^{7} -1)}{2 - 1}$

$= \frac{128 - 1}{1} = 127$

Sum of the first seven terms is 127

8 0

3 years ago

I'm stumped. Honestly. Please help

Ugo [173]

Answer:

1: Tip, $2.23

2: Tax, $0.74

3: Total, $17.87

4: Split, $5.95

Step-by-step explanation:

To find the tip, you must multiply the tip percentage by the bill, (which has not been taxed yet). The tip is 15%, which is equivalent to 0.15. The tip multiplied by the bill (0.15×14.90) equals $2.23.

To find the tax, you do the same as you did with the tip. The tax is 5%, which equals 0.05. The tax multiplied by the bill, (0.05×14.90) equals $0.74. The total cost is the bill, tip, and tax added together, (14.90+2.23+0.74) equals $17.87. To find out how much each person will pay equally, you must divide the total bill by the amount of people, (17.87÷3) which equals $5.95.

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oee [108]

Answer:

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Step-by-step explanation:

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3 years ago

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Ksivusya [100]

Answer:

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2 years ago

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