3 years ago

#7 please I don’t get how to do this

Mathematics

1 answer:

motikmotik3 years ago

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Which one of the following statements is true of perpendicular lines?

miv72 [106K]

A. Thay intersect at one point.

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3 years ago

If angle X has a measure of 40 degrees and angle Y is vertical to angle X, what is the measure of angle Y? Show your work and ex

elena-14-01-66 [18.8K]

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4 years ago

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Find all the zeroes of the polynomial function f(x)=x^3-5x^2+6x-30 in you use synthetic division show all three lines of numbers

jonny [76]

Answer:

5, $i\sqrt 6$ and $-i\sqrt 6$

Step-by-step explanation:

We are given that the polynomial

$f(x)=x^3-5x^2+6x-30$

We have to find the all the zeroes of the polynomial function.

$f(x)=0$

$x^3-5x^2+6x-30=0$

$x^2(x-5)+6(x-5)=0$

$(x-5)(x^2+6)=0$

$x-5=0$

$x=5$

$x^2+6=0$

$x^2=-6$

$x=\pm\sqrt{-6}=\pm i\sqrt6$

Using $\sqrt{-1}=i$

Hence, all the zeroes of the polynomial function are

5, $i\sqrt 6$ and $-i\sqrt 6$

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3 years ago

Find sin A and sec B given a=2 b=11

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If there is a triangle with Sid a and b then sina b/✓a2+b2and seven=✓a2+b2/a

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4 years ago

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Jamie bought two puzzles for $5.00 and three puzzles for $7.50. Write and solve an equation to find the cost of 15 puzzles

gladu [14]

2x=$5.00
x=$2.50
3x=$7.50
x=$2.50
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hope this helps!

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4 years ago