2 years ago

Please help me with this

Mathematics

1 answer:

pochemuha2 years ago

4 0

Answer:

Step-by-step explanation:

$(-1)^{n}$ * $2^{n}$

then

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

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The sum of two numbers is 64 and the difference is 6. What are the numbers?

Ne4ueva [31]

Answer:

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Step-by-step explanation:

x+y=64

x-y=6

Solve by substitution.

x=6+y

6+y+y=64

6+2y=64

y=29

Then plug in 29 for y.

x+29=64 ......35

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2 years ago

1. Lenny cleans 75 cars in 5 days. At this rate, how many days will it take him to wash 90 cars? *please I need some help

Ahat [919]

Answer: 6 days

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2 years ago

Is (x-1) a factor of 2x3 - 15x2 + 22x + 15

Advocard [28]

Answer:

Step-by-step explanation:

If x - 1 is a factor of the cubic, then 1 should result in 0 when you put it in the cubic for x. Does it?

f(1) = 2(1)^3 - 15(1)^2 + 22(1) + 15

f(1) = 2 - 15 + 22 + 15

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No the result is not zero. So x - 1 is not a factor.

However there must be something that makes this cubic go to zero. The easiest way to find it is to graph it.

The numbers that do make this zero are -0.5, 3, 5

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2 years ago

The graph shows the number of chairs made in a factory during one day .

GaryK [48]

Answer:

C) the factory produces 25 chairs per hour

Step-by-step explanation:

Let's find the rate of change (slope):

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2 years ago

What is 6900g converted to kg???

stich3 [128]

1000 g=1kg
to convert to kg
1kg/1000g=conversion factor
multiply
6900g times 1kg/1000g
grams cancel
6.9 kg

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3 years ago

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