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sashaice [31]
3 years ago
11

Write the expression in standard form. six divided by quantity four minus thirteen i.

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
7 0

Answer:

\frac{6}{4} - 13i

Step-by-step explanation:

six divided by quantity four minus thirteen i

Standard form of the expression is a+bi

six divided by quantity four means we divide 6 and 4

six divided by quantity four is \frac{6}{4}

Now minus thirteen i

So we subtract 13i from the fraction

\frac{6}{4} - 13i

It is in the form of a+bi

dangina [55]3 years ago
4 0
6\frac{6}{4-13i}

I'm not sure if the i is supposed to be there or not. Is it a variable that is connected to 13?
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3b^2 - x = -9b^2 
x = 3b^2 +9b^2

x = 12b^2

3b^2 -12b^2 = -9b^2

hope this will help you 
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A photo album costs $10.49 before discount and tax.
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Answer:

Total after tax and discount is $7.78

Step-by-step explanation:

(10.49×0.3)= 3.15

10.49 - 3.15 = 7.34

(7.34×0.06)= 0.44

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3 years ago
a jeweler has 36 inches of silver chain She needs 5 times that much to make some necklaces and. 3 times that amount to make some
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Answer:

180 inches for necklaces

108 inches for bracelets

that is if Im understanding it correctly, but I hope it helps

Step-by-step explanation:

8 0
2 years ago
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1. This data shows the pocket money that year 9 pupils receive each
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3 years ago
Given: KLMN is a trapezoid, m∠N=m∠KML, FD=8, LM KN = 3 5 F∈ KL , D∈ MN , ME ⊥ KN KF=FL, MD=DN, ME=3 5 Find: KM
denis23 [38]

Answer:

The length of side KM is \sqrt{109} units.

Step-by-step explanation:

Given information:  KLMN is a trapezoid, ∠N= ∠KML, FD=8, LM:KN=3:5, F∈ KL, D∈ MN , ME ⊥ KN KF=FL, MD=DN, ME=3\sqrt{5}.

From the given information it is noticed that the point F and D are midpoints of KL and MN respectively. The height of the trapezoid is 3\sqrt{5}.

Midsegment is a line segment which connects the midpoints of not parallel sides. The length of midsegment of average of parallel lines.

Since LM:KN=3:5, therefore LM is 3x and KN is 5x.

\frac{3x+5x}{2}=8

\frac{8x}{2}=8

x=2

Therefore the length of LM is 6 and length of KN is 10.

Draw perpendicular on KN form L and M.

KN=KA+AE+EN

10=6+2(EN)                (KA=EN, isosceles trapezoid)

EN=2

KE=KN-EN=10-2=8

Therefore the length of KE is 8.

Use pythagoras theorem is triangle EKM.

Hypotenuse^2=base^2+perpendicular^2

(KM)^2=(KE)^2+(ME)^2

(KM)^2=(8)^2+(3\sqrt{5})^2

KM^2=64+9(5)

KM=\sqrt{109}

Therefore the length of side KM is \sqrt{109} units.

8 0
3 years ago
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