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Gemiola [76]
3 years ago
15

(01.06 LC) Expand and simplify: (2x + 5y) (x - 3y) (5 points)

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

Answer:

2x² - xy - 15y²

Step-by-step explanation:

(2x + 5y)(x - 3y)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(x - 3y) + 5y(x - 3y) ← distribute parenthesis

= 2x² - 6xy + 5xy - 15y² ← collect like terms

= 2x² - xy - 15y²

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Is area a function of the radius ? Is radius a function of area?
Mnenie [13.5K]

Answer: The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2.

Step-by-step explanation: google help

4 0
3 years ago
What is 48,100,000,000,000 in scientific notation? 4.81×10−11 4.81 times 10 to the power of negative 11 4.81×10−13 4.81 ti
Anettt [7]

The scientific notation of 48,100,000,000,000 is 4.81 ×  10^13.

Acccoring to the given question.

We have a number 48,100,000,000,000.

As we know that, scientific notaion is a way of expressing numbers that are too large or too small to be conveniently written in a decimal form.

Therefore,

The scientific notaion of 48,100,000,000,000 is given by

48,100,000,000,000 = 4.81 ×  10^13

Hence, the scientific notation of 48,100,000,000,000 is 4.81 ×  10^13.

Find out more information about scientific notaion here:

brainly.com/question/18073768

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4 0
1 year ago
Jessie has been training for a half-marathon. Jesse trains on a track where each lap is 1/4 of a mile. If Jesse ran 3 1/7 miles,
NISA [10]

Answer:

14.2

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Amy is helping plan her school's new basketball court. The west edge of the basketball court is located on the line y = 2x + 5.
ipn [44]

Answer:

Line of east wedge is: 2x - y = 96

So, Option 1 is correct.

Step-by-step explanation:

The east edge cannot intersect with the west edge means that two lines are parallel.

If the two lines are parallel then they have same slope. We need to find the slopes of given lines and check which line has slope same as slope of west edge.

Slope of west edge.

y = 2x + 5

The standard equation for slope intercept form is:

y = mx+b

where m is the slope. So, m= 2

Now finding line for east edge.

Option 1.

Convert each given equation to standard slope intercept form and find the slope.

2x -y =96

-y = -2x +96

Multiply with -1

y = 2x -96

m = 2

Option 2.

-2x -y = 96

-y = 2x +96

y = -2x-96

m = -2

Option 3

-y-2x =48

-y = 2x +48

y = -2x -48

m = -2

Option 4.

y+2x = 48

y = -2x+48

m = -2

So, only line of Option 1 has slope = 2 which is equal to the slope of west edge.

Line of east wedge is: 2x - y = 96

So, Option 1 is correct.

7 0
3 years ago
4(c + d) -3c + 5d when c=1.5 and d= -6.2
patriot [66]

Answer:

-54.3

Step-by-step explanation:

4(1.5−6.2)−4.5−31

=(4)(−4.7)−4.5−31

=−18.8−4.5−31

=−23.3−31

=−54.3

7 0
2 years ago
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