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qaws [65]
3 years ago
12

What expression is the factorization of x^2+10x+21

Mathematics
2 answers:
a_sh-v [17]3 years ago
8 0

Answer:

a

Step-by-step explanation:

FOIL

f-first

o-outer

i-inner

l-last

fiasKO [112]3 years ago
7 0

Answer:

(x+3)(x+7)

Step-by-step explanation:

3+7 = 10 (the middle number)

3(7) = 21 (the third number)

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A team of ecologists is tracking mountain lions throughout California. They count 4543 mountain lions in the entire state. The a
DanielleElmas [232]
For this case we can make the following rule of three:
 4543 -----------> 423970 km ^ 2
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 x = (250/423970) * (4543)
 x = 2.678845201
 Answer:
 
the population density of mountain lions per 250 kmsquared2 in California is:
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6 0
4 years ago
A students wants to report on the number of movies her friends watch each week. The collected date are below:
Anvisha [2.4K]

Answer:

A.) median; 1.5

Step-by-step explanation:

Hello!

The median is the number that is in the middle when the numbers are listed from least to greatest

0, 0, 1, 1, 2, 2, 2, 14

We can take one from both sides till there are one or two numbers left

0, 1, 1, 2, 2, 2

1, 1, 2, 2

1, 2

If there are two numbers left we add them then divide by 2 to get the median

1 + 2 = 3

3 / 2 = 1.5

The answer is A.) median; 1.5

Hope this helps!

7 0
3 years ago
Write an equation of the line that is parallel to -x + y = 5 and passes through the point (2,-5).
trasher [3.6K]

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

so convert the equation -x + y = 5 into slope intercept form by adding x to both sides

(-x + x) + y = 5 + x

0 + y = 5 + x

y = 5 + x

To match the slope intercept formula switch the x and 5 around

y = x + 5

If lines are parallel then they have the same slope (m) but they have different b

This means that the slope of the line will be 1 (in front of the x is an invisible 1 which would be m)

This is what we have so far...

y =  x + b

Now we must find b

To do that you must plug in the point the line goes through in the x and y of the equation.

(2, -5)

-5 = 1(2) + b

-5 = 2 + b

-7 = b

y = x + (-7)

y = x - 7

Hope this helped!

~Just a girl in love with Shawn Mendes

7 0
3 years ago
Read 2 more answers
Find the volume of the sphere. Use 3.14 for pi.​
Vlad1618 [11]
We need to see the other numbers to know what we are apply pi into
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