2 years ago

Please help me with my assignment

1 answer:

6 0

0.000565 - this is a simple standard form question (if the 10 is to the power of a negative number, the answer will always be extremely low!)

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the sum of two whole numbers is 158. twice the first number and four times the second number is 482.what are the two numbers.

Temka [501]

$x+y=158 \\ 2x+4y=482 \\ 2(x+y)=2(158) \\ 2x+2y=316 \\ 2y=166 \\ y=83 \\ x=75$

8 0

3 years ago

How many positive integers $n$ satisfy $ floor sqrt n floor = 5$?

Temka [501]

That's all the square roots of the form 5.xxxx. The numbers start at 5² and end at 6²-1.

So that's 6² - 5² = 11 numbers. We can list them:

25,26,27,28,29,30,31,32,33,34,35

Answer: 11

5 0

3 years ago

If your plants receive water and sunlight they will grow. independent dependent

Yuliya22 [10]

Dependent because its growing by it self and it will need sun and light its depending on the sun and water

6 0

3 years ago

Marianne is completing a 4 mile route for charity.Every 1/10 mile is marked along the route. For each mile,she runs 7/10 mile an

Dmitriy789 [7]

Seven tenths of every mile she goes she runs. So we would multiply 4 by seven tenths and get 2.8 miles. And to find out how many miles she walks, we would multiply 4 by three tenth and get 1.2

hope this helped!!

5 0

3 years ago

What is 5x-4y=-7 (-20,-8)in slope intercept form

forsale [732]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

$y = mx + b$

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following equation:

$5x-4y = -7$

We manipulate algebraically to write the equation of the slope-intersection form:

$-4y = -7-5x\\4y = 5x + 7\\y = \frac {5} {4} x + \frac {7} {4}$

We check if the given point belongs to the equation:

$y = \frac {5} {4} (- 20) + \frac {7} {4}\\y = -25 + \frac {7} {4}\\y = \frac {-100 + 7} {4}\\y = - \frac {93} {4}$

The point does not belong to the equation.

ANswer:

$y = \frac {5} {4} x + \frac {7} {4}$

4 0

3 years ago