3 years ago

What is the measure of XY

Mathematics

1 answer:

Nana76 [90]3 years ago

5 0

Answer:

no clueeeereereee

Step-by-step explanation:

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Write the equation of the line passing through (-2,k) (2,0) and has a slope of -1\

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The passing line equation is y=mx (_) +B ( )

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3 years ago

For what values of q are the two vectors A = i + j + kq each other and B-iq-23 + 2kg perpendicular to

Sloan [31]

Answer:

The value of q are 0.781,-1.281.

Step-by-step explanation:

Given : Two vectors $A=i+j+kq$ and $B=iq-2j+2kq$ are perpendicular to each other.

To find : The value of q ?

Solution :

When two vectors are perpendicular to each other then their dot product is zero.

i.e. $\vec{A}\cdot \vec{B}=0$

Two vectors $A=i+j+kq$ and $B=iq-2j+2kq$

$(i+j+kq)\cdot (iq-2j+2kq)=0$

$(1)(q)+(1)(-2)+(q)(2q)=0$

$q-2+2q^2=0$

$2q^2+q-2=0$

Using quadratic formula,

$q=\frac{-1\pm\sqrt{1^2-4(2)(-2)}}{2(2)}$

$q=\frac{-1\pm\sqrt{17}}{4}$

$q=\frac{-1+\sqrt{17}}{4},\frac{-1-\sqrt{17}}{4}$

$q=0.781,-1.281$

Therefore, The value of q are 0.781,-1.281.

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3 years ago

Solve for c. Give an exact answer. 0.2(10−5c)=5c−16

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C = 3
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As an airplane rises. the outside temperature from 3.6F for every 1000 feet of elevation gain. Suppose the outside temperature i

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Step-by-step explanation:

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3 years ago

Find the value of x. Round to the nearest tenth.

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Step-by-step explanation:

here,,

a=3,b=10,C=120°

c^2=a^2+b^2-2ab cos120°

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=139

c=(139 )1/2=11.79

c=12

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3 years ago