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3 years ago

Passing through (4,-7) and perpendicular to the line whose equation is x-2y-3=0

Mathematics

1 answer:

Dafna1 [17]3 years ago

5 0

Answer:

the samurai were best known for their swordsmanship with the katana, kyūjutsu (“art of archery”)

Step-by-step explanation:

the samurai were best known for their swordsmanship with the katana, kyūjutsu (“art of archery”) that's for yesterday you deleted my answer for this question

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There are 144 pencils in a box.If each member of the class gets 8 pencils.there will be no pencils left over.How many members of

Yuliya22 [10]

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4 years ago

Read 2 more answers

Help please due today.

BARSIC [14]

Answer:

A) $\frac{7}{tan55^\circ}$

Step-by-step explanation:

$tan\theta=\frac{opposite}{adjacent}\\ \\tan55^\circ=\frac{7}{BC}\\ \\BC*tan55^\circ=7\\\\BC=\frac{7}{tan55^\circ}$

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3 years ago

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3 years ago

16. The value of sin² 5° + sin² 10° + sin² 15° + … + sin² 90° is equal to

Yuri [45]

Answer:

11.5

Step-by-step explanation:

Let think mathematically. We have a finite series.

sin² 5° + sin² 10° + sin² 15° + … + sin² 90° . Remeber that sin is a periodic function, and we also know that

$\sin {}^{2} (45 + 45) = 1$

and

$\sin {}^{2} (30 + 60) = 1$

also that

$\sin {}^{2} (0 + 90) = 1$

I'm imying that two angles that add up to 90 will make cancel out to 1.

Our full series will be

Angle measures increasing by 5 so

85+5=1

80+10=1

75+15=1

70+20=1

65+25=1

60+30=1

55+25=1

50+30=1

sin^2(45) is the same as sin(45)sin(45)=1/2.

And sin^2(90)=1 So our value is 9.5

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3 years ago

Sarah has a lot of shoes. She organizes them on 4 shelves. If each shelf holds 8 pairs of shoes, how many total pairs of shoes d

Volgvan

Answer:

Step-by-step explanation:

8 x 4 = 32

I'm pretty sure

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3 years ago