Explain how to factor when the leading coefficient is 1.

Mathematics

1 answer:

Ludmilka [50]2 years ago

7 0

C but I could be wrong

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If the product of a number and negative −3 is subtracted from the number, the result is 11 more than the number. find the numbe

Ierofanga [76]

The answer would be 2.2.

This sentence as an expression would be n - (-3n) = n + 11.
Solve it and you'll get 2.2!

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3 years ago

Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.

Andreas93 [3]

$x^2-21.75x=-15.75 \\
x^2-21.75x+15.75=0$

Use the quadratic formula:
$x^2-21.75x+15.75=0 \\ \\
a=1 \\ b=-21.75 \\ c=15.75 \\ b^2-4ac=(-21.75)^2-4 \times 1 \times 15.75=473.0625-63=410.0625 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-21.75) \pm \sqrt{410.0625}}{2 \times 1}=\frac{21.75 \pm 20.25}{2} \\
x=\frac{21.75-20.25}{2} \ \lor \ x=\frac{21.75+20.25}{2} \\
x=\frac{1.5}{2} \ \lor \ x=\frac{42}{2} \\
x=\frac{15}{20} \ \lor \ x=21 \\
x=\frac{3}{4} \ \lor \ x=21 \\
\boxed{x=\frac{3}{4} \hbox{ or } x=21}$

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2 years ago

Change the line 3x − 8y = 5 into slope-intercept form.

Nimfa-mama [501]

Slope is y=mx+b
m=slope
b=y intercept

solve for y basically

3x-8y=5
minus 3x both sides
-8y=-3x+5
divide both sides by -8
$y=\frac{3}{8}x-\frac{5}{8}$

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2 years ago

I need help with number 8 ASAP

WARRIOR [948]

Answer:

C. 24,429 is the answer

Step-by-step explanation:

formula for volume of a sphere is V=4/3*π*r^3

r=18

r^3=5832

I used 3.14 for pie and just multiplied all that together

hope this helps

comment for more

5 0

2 years ago

Read 2 more answers

The sum of the measures of a pair of alternate angles of two parallel lines is 210°. What are the measures of these two angles?

aniked [119]

The answer is 105 and 105 because they did not tell you that one had more than the other, so it's equal. Plus, it could not be 210 or over or 0 or less. It was spilt up equally between both alternate angles, and the lines are parallel, so the angles are equal. So just do 210/2 and get what one of the angles would be. Great question!

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2 years ago